How much is the 140 down-the-hole drill bit [Tungsten Carbide Inserts]
The price of 140 down-the-hole drill bits ranges from 1300 to 1500 yuan, and the quality is different, which is caused by the material of the trouser body and the quality of the alloy beads.
where are you?Can it be shipped nationwide? I don't want much. I want to get some 140 drill bits. where are you?Can it be shipped nationwide? I don't want much. I want to get some 140 drill bits. Boss, I have added your WeChat, searched [DTH Drilling Tools] to find you, do you have 115 drill bits? I don't want too much, can I express a few by then? I'm in Yunnan and I can buy 20 drill bits at a time. Can you ship it to me? Passing by, looks very durable.Try when needed Mo-Si Ye Lan
Yesterday, just yesterday.There is a customer in Gansu, who has more than a dozen down-the-hole drills. He used to use 90 high-pressure down-the-hole drills to drill, saying that the cost is too high. Of course, the down-the-hole drills and impactors are all special types. The materials are several times more expensive.So now it is changed to a low wind pressure of 90. According to him, it is still not wearable. I don't know what better drill bit is. He also said that the high wind pressure and the low wind pressure 90 drill bit are about the same number of meters. I don't believe it. Well, it is estimated that he did not carefully calculate
Our company has focused on down-the-hole drilling tools for 30 years and has provided drilling tools for more than 50 national large-scale projects and more than 1,000 construction sites.
I'm Mr. Tan, DTH drills. For DTH drills, and I will answer them happily Therefore, whether you are in business or engineering, cost accounting is a very important task. Although it is comfortable to make money in bed, but if you do not control the cost well, how good profits will be lost. Finance is also very important.
Our company has focused on down-the-hole drilling tools for 30 years and has provided drilling tools for more than 50 national large-scale projects and more than 1,000 construction sites.
I am Mr. Tan, DTH drilling tool, yes Turn off the down-the-hole drill, for the down-the-hole drill, I will answer happily How much is the 140 down-the-hole drill bit
The price ranges from 1200 to 1400, some customers will ask, what is the difference??
The main difference is that the selection of steel materials is different, some steel is only tens of thousands of tons, and some steel is more than 100,000 tons.
There are also differences in alloy teeth. The good alloys are made of new materials, and the poor ones are made of recycled materials.
Customers go and see for themselves How much is the 140 down-the-hole drill bit
The price of genuine products may be more than tens of dollars, but the overall cost will be reduced a lot
where are you?Can it be shipped nationwide? I don't want much. I want to get some 140 drill bits. where are you?Can it be shipped nationwide? I don't want much. I want to get some 140 drill bits. Boss, I have added your WeChat, searched [DTH Drilling Tools] to find you, do you have 115 drill bits? I don't want too much, can I express a few by then? I'm in Yunnan and I can buy 20 drill bits at a time. Can you ship it to me? Passing by, looks very durable.Try when needed Mo-Si Ye Lan
Yesterday, just yesterday.There is a customer in Gansu, who has more than a dozen down-the-hole drills. He used to use 90 high-pressure down-the-hole drills to drill, saying that the cost is too high. Of course, the down-the-hole drills and impactors are all special types. The materials are several times more expensive.So now it is changed to a low wind pressure of 90. According to him, it is still not wearable. I don't know what better drill bit is. He also said that the high wind pressure and the low wind pressure 90 drill bit are about the same number of meters. I don't believe it. Well, it is estimated that he did not carefully calculate
Our company has focused on down-the-hole drilling tools for 30 years and has provided drilling tools for more than 50 national large-scale projects and more than 1,000 construction sites.
I'm Mr. Tan, DTH drills. For DTH drills, and I will answer them happily Therefore, whether you are in business or engineering, cost accounting is a very important task. Although it is comfortable to make money in bed, but if you do not control the cost well, how good profits will be lost. Finance is also very important.
Our company has focused on down-the-hole drilling tools for 30 years and has provided drilling tools for more than 50 national large-scale projects and more than 1,000 construction sites.
I am Mr. Tan, DTH drilling tool, yes Turn off the down-the-hole drill, for the down-the-hole drill, I will answer happily How much is the 140 down-the-hole drill bit
The price ranges from 1200 to 1400, some customers will ask, what is the difference??
The main difference is that the selection of steel materials is different, some steel is only tens of thousands of tons, and some steel is more than 100,000 tons.
There are also differences in alloy teeth. The good alloys are made of new materials, and the poor ones are made of recycled materials.
Customers go and see for themselves How much is the 140 down-the-hole drill bit
The price of genuine products may be more than tens of dollars, but the overall cost will be reduced a lot
Down-the-hole drill bit price support customized [Tungsten Carbide Inserts]
It is a company that produces drilling tools in the drilling tool industry and has domestic production and inspection equipment..The business scope includes rock drilling tools, drill rods, drill bits, light drilling tools, heavy drilling tools, down-the-hole drilling tools, coal machinery and milling gears, etc., and the business covers all fields of rock drilling system.Other related machinery and equipment Taper Button Bits 34 11 Production and sales, etc..
Reduced drill cost.Supply rate.The trousers are made of Shougang 35CrMo steel, which has higher strength and hardness than similar products. The cutting edge of the drill has a slope shape..It belongs to the spiral shape of the slope. The hammer drill is made of Jinbao cemented carbide. The alloy layout and vent design are carried out according to different working conditions..Through the processing technology, we provide customers with a full range of cemented carbide drill bits.For the stability of the button bit, the bit has the characteristics of high reliability and high durability. Through the slag hole design, the bit efficiency is higher..What is the bit.Column tooth bit, also known as column tooth bit, column tooth bit, button bit.Many mining manufacturers usually use the column tooth bit to search when searching for the column tooth bit. There are very few pages on the column tooth bit. If the manufacturer can search for the column tooth bit, there will be many pages about the column tooth bit..
There are regular hexagonal drill rods with a center hole and round drill rods with a center hole. Generally, small diameter drill rods are made of hexagonal hollow drill steel, and large diameter drill skewers are mostly made of ring-shaped drill steel. Except for the shoulderless shank, the tails of this drill rod belong to the shoulder type shank. The shape, size and technical requirements are the same, except for the heads of the three types of drill rods..With the difference between integral insert (tooth), cone connection and threaded connection.The extension drill is composed of a live shank (extension shank), a live shank, a connecting sleeve and multiple drill rods.(1) There are two types of shanks, one is the connecting rod shank integrated with the drill rod.The three types of drill rods used for shallow hole drilling belong to this type; the other is a separate type, called a connecting rod shank. The diameter of the shank should enable the shank to be smoothly transferred into the drill sleeve (drill sleeve) of the rock drill bits..Without excessive clearance and deflection.
After the sticking accident occurs, the first thing to do is to analyze the conditions of lifting, lowering, rotating, pumping on circulation, as well as the learned wellbore conditions and various phenomena before the sticking, to accurately determine the cause of the sticking, and then take corresponding measures. Measures.But no matter what kind of stuck drill, we must try to adjust the performance of the drilling fluid, timely cuttings, clean the wellbore, generally the following methods are commonly used to release the stuck.
1. Unblock the bath well
For differential pressure stuck, mud pack stuck, reduced diameter stuck, sand stuck, etc., bath wells can be used to release the stuck.This method is to soak oil into the well, soak salt water or adopt clear water circulation, etc., so as to loosen the mud cake, reduce the adhesion coefficient, and the drilling tool Contact area and pressure difference, so that the movable drilling tool is released.
2. Click up and down to unlock the card
During drilling, when encountering collapsed, viscous, swelling and other easily stuck formations, a jar can be connected between the drill pipe and the drill stand or between the drill stand. Once stuck, immediately hit up or down to release the jam..If stuck during tripping, such as shrinkage, keyway, etc. caused by the stuck-drilling movement cannot be removed, you can reverse the drilling tool at the stuck point, and then connect the jar, after the buckle, press down to release the stuck, and then cycle Flush the well and slowly lift the drill string. If the jam still cannot be released, you can turn the drill tool backwards and lift it up gently..When you encounter obstacles in the drilling process and fail to find the stuck drill in time, or the lighter mud cake adheres to the stuck drill, you can use the upper striker to shake up and release the stuck drill..
3. Lift up and lower down and rotate the drilling tool to release the jam
While washing the well with circulating drilling fluid, cooperate with the active drilling tool. If the stuck is serious, it can be solved. However, the active drilling tool should be carried out for different types of stuck drilling. If it is a sand sinking stuck or a well collapsed stuck drill, it cannot be used. Lift the drill tool to prevent it from getting stuck, then you can lower and rotate the drill tool, and try to establish a loop, and slowly lift it up and release the jam by using an inverted eye-opening method..When the drill is stuck (keyway, reduced diameter or mud-packed drill), you can lift the drill abruptly after mentioning the original suspended weight. Don't lift it up strongly, so as not to make the drill bit stuck..When drilling down meets resistance and the pressure is too large and the stuck drill is stuck, apply a greater force to lift up and release the stuck drill. For the pressure difference stuck drill, you can use the method of lifting and rotating the drill tool to solve the stuck drill. card.
In addition to the stress distribution characteristics along the drill rod, it is mainly due to the "hardness valley" (metallurgical gap) produced during the manufacture of the drill rod.Due to accelerated corrosion fatigue, (6) The cross-sectional area of the taper of the drill rod is gradually reduced. Take 22mm hexagonal drill rod as an example.When the diameter of the small end of the cone is 18mm, the cross-sectional area is reduced by 42796. From the perspective of the cross-sectional area, the cone is the weak link of the drill rod. There is a slight carelessness in the processing of the cone and the use of the drill rod..It is easy to cause "broken cone", after the drill rod breaks the cone.Although it can be repaired, the drill bit is often scrapped or lost due to the broken cone, which affects the efficiency of the down-the-hole drill. In addition to the correct selection of the hard-fit number, the efficiency of the down-the-hole drill is also affected by many factors. If you look closely, you can see that the shape of the drill bit is different, and the cross section of the blasthole when the bit is drilled is also different..
The use of cemented carbide drill bit, the use of cemented carbide drill bit for rock drilling.Clean up the oil on the connecting part of the taper hole before use.Check whether the water eye is unblocked, the welding rod is straight, whether the water hole is blocked, and whether the connection of the shank is good, you can use the rock drill collar to test the sleeve, and the shank should be able to be looped tightly and freely.After the reef inspection is completed, group by length.For selection during work, the diameter of each group of drill bits can be measured with a caliper, and selected according to the diameter.Then make a mark, and it will take time to select the drill bit when working. It can be used directly. The other method is to use the sample plate to measure.In each group of drill bits, the diameter difference between two adjacent drill bits is 05-15 mm, and the rock conditions of each mine are different..The choice of group spacing should be determined according to the nature of the rock. Generally, the higher the nature of the rock, the larger the group spacing. Cautions for the use of cemented carbide drill bits.
Reduced drill cost.Supply rate.The trousers are made of Shougang 35CrMo steel, which has higher strength and hardness than similar products. The cutting edge of the drill has a slope shape..It belongs to the spiral shape of the slope. The hammer drill is made of Jinbao cemented carbide. The alloy layout and vent design are carried out according to different working conditions..Through the processing technology, we provide customers with a full range of cemented carbide drill bits.For the stability of the button bit, the bit has the characteristics of high reliability and high durability. Through the slag hole design, the bit efficiency is higher..What is the bit.Column tooth bit, also known as column tooth bit, column tooth bit, button bit.Many mining manufacturers usually use the column tooth bit to search when searching for the column tooth bit. There are very few pages on the column tooth bit. If the manufacturer can search for the column tooth bit, there will be many pages about the column tooth bit..
There are regular hexagonal drill rods with a center hole and round drill rods with a center hole. Generally, small diameter drill rods are made of hexagonal hollow drill steel, and large diameter drill skewers are mostly made of ring-shaped drill steel. Except for the shoulderless shank, the tails of this drill rod belong to the shoulder type shank. The shape, size and technical requirements are the same, except for the heads of the three types of drill rods..With the difference between integral insert (tooth), cone connection and threaded connection.The extension drill is composed of a live shank (extension shank), a live shank, a connecting sleeve and multiple drill rods.(1) There are two types of shanks, one is the connecting rod shank integrated with the drill rod.The three types of drill rods used for shallow hole drilling belong to this type; the other is a separate type, called a connecting rod shank. The diameter of the shank should enable the shank to be smoothly transferred into the drill sleeve (drill sleeve) of the rock drill bits..Without excessive clearance and deflection.
After the sticking accident occurs, the first thing to do is to analyze the conditions of lifting, lowering, rotating, pumping on circulation, as well as the learned wellbore conditions and various phenomena before the sticking, to accurately determine the cause of the sticking, and then take corresponding measures. Measures.But no matter what kind of stuck drill, we must try to adjust the performance of the drilling fluid, timely cuttings, clean the wellbore, generally the following methods are commonly used to release the stuck.
1. Unblock the bath well
For differential pressure stuck, mud pack stuck, reduced diameter stuck, sand stuck, etc., bath wells can be used to release the stuck.This method is to soak oil into the well, soak salt water or adopt clear water circulation, etc., so as to loosen the mud cake, reduce the adhesion coefficient, and the drilling tool Contact area and pressure difference, so that the movable drilling tool is released.
2. Click up and down to unlock the card
During drilling, when encountering collapsed, viscous, swelling and other easily stuck formations, a jar can be connected between the drill pipe and the drill stand or between the drill stand. Once stuck, immediately hit up or down to release the jam..If stuck during tripping, such as shrinkage, keyway, etc. caused by the stuck-drilling movement cannot be removed, you can reverse the drilling tool at the stuck point, and then connect the jar, after the buckle, press down to release the stuck, and then cycle Flush the well and slowly lift the drill string. If the jam still cannot be released, you can turn the drill tool backwards and lift it up gently..When you encounter obstacles in the drilling process and fail to find the stuck drill in time, or the lighter mud cake adheres to the stuck drill, you can use the upper striker to shake up and release the stuck drill..
3. Lift up and lower down and rotate the drilling tool to release the jam
While washing the well with circulating drilling fluid, cooperate with the active drilling tool. If the stuck is serious, it can be solved. However, the active drilling tool should be carried out for different types of stuck drilling. If it is a sand sinking stuck or a well collapsed stuck drill, it cannot be used. Lift the drill tool to prevent it from getting stuck, then you can lower and rotate the drill tool, and try to establish a loop, and slowly lift it up and release the jam by using an inverted eye-opening method..When the drill is stuck (keyway, reduced diameter or mud-packed drill), you can lift the drill abruptly after mentioning the original suspended weight. Don't lift it up strongly, so as not to make the drill bit stuck..When drilling down meets resistance and the pressure is too large and the stuck drill is stuck, apply a greater force to lift up and release the stuck drill. For the pressure difference stuck drill, you can use the method of lifting and rotating the drill tool to solve the stuck drill. card.
In addition to the stress distribution characteristics along the drill rod, it is mainly due to the "hardness valley" (metallurgical gap) produced during the manufacture of the drill rod.Due to accelerated corrosion fatigue, (6) The cross-sectional area of the taper of the drill rod is gradually reduced. Take 22mm hexagonal drill rod as an example.When the diameter of the small end of the cone is 18mm, the cross-sectional area is reduced by 42796. From the perspective of the cross-sectional area, the cone is the weak link of the drill rod. There is a slight carelessness in the processing of the cone and the use of the drill rod..It is easy to cause "broken cone", after the drill rod breaks the cone.Although it can be repaired, the drill bit is often scrapped or lost due to the broken cone, which affects the efficiency of the down-the-hole drill. In addition to the correct selection of the hard-fit number, the efficiency of the down-the-hole drill is also affected by many factors. If you look closely, you can see that the shape of the drill bit is different, and the cross section of the blasthole when the bit is drilled is also different..
The use of cemented carbide drill bit, the use of cemented carbide drill bit for rock drilling.Clean up the oil on the connecting part of the taper hole before use.Check whether the water eye is unblocked, the welding rod is straight, whether the water hole is blocked, and whether the connection of the shank is good, you can use the rock drill collar to test the sleeve, and the shank should be able to be looped tightly and freely.After the reef inspection is completed, group by length.For selection during work, the diameter of each group of drill bits can be measured with a caliper, and selected according to the diameter.Then make a mark, and it will take time to select the drill bit when working. It can be used directly. The other method is to use the sample plate to measure.In each group of drill bits, the diameter difference between two adjacent drill bits is 05-15 mm, and the rock conditions of each mine are different..The choice of group spacing should be determined according to the nature of the rock. Generally, the higher the nature of the rock, the larger the group spacing. Cautions for the use of cemented carbide drill bits.
The applicable range of layered rock drill bits [Tungsten Carbide Inserts]
Layered drill bit, as the name suggests, is a type of drill bit that is connected by layer structure.This type of drill bit belongs to the industry-specific accessories, and meets the standard and particularity of the use of rock drill bits in use and structure, so it is generally not common on the market.The applicable drilling rig model for layered drills is KHYD Series of electric rock drills are currently supporting rock drilling hardness coefficients10The best drill bit around the level.
The layered drill bit is shown in the figure below:
MinuteAs shown in the figure above, the layer drill bit is formed by a variety of separate alloy sheet drill bits. The number of combinations depends on the drilling diameter requirement. The maximum reamable diameter of the drill bit in the display is130mm, Of course, it can be connected to a larger size jacket.The advantage of using a layered drill bit is that through multi-layer intersection, the drill bit can ream and advance the rock layer separately when rotating and drilling. The alloy in the drill bit is relatively sharp, which can speed up the simultaneous advancement of the drill bit and the subsequent drill pipe..
The application areas of layered drill bits include some rock drilling projects, and the usable range of different rock types under various hardness coefficients.Common types of rocks are: marble, granite, limestone, etc. These rocks have high hardness, and only layered drill bits can be used to effectively and quickly advance rock drilling..
The layered drill bit is shown in the figure below:
MinuteAs shown in the figure above, the layer drill bit is formed by a variety of separate alloy sheet drill bits. The number of combinations depends on the drilling diameter requirement. The maximum reamable diameter of the drill bit in the display is130mm, Of course, it can be connected to a larger size jacket.The advantage of using a layered drill bit is that through multi-layer intersection, the drill bit can ream and advance the rock layer separately when rotating and drilling. The alloy in the drill bit is relatively sharp, which can speed up the simultaneous advancement of the drill bit and the subsequent drill pipe..
The application areas of layered drill bits include some rock drilling projects, and the usable range of different rock types under various hardness coefficients.Common types of rocks are: marble, granite, limestone, etc. These rocks have high hardness, and only layered drill bits can be used to effectively and quickly advance rock drilling..
One-word Rock Drill Bit Manufacturers [Tungsten Carbide Inserts]
Flat drill bit, flat drill dth drill bits Head details; flat-shaped drill bit, flat-shaped air drill bit--the flat-shaped drill bit series are suitable for light rock drills to drill rock formations with low hardness, which is convenient for grinding.The manufacturing process of the flat-shaped drill bit is simple, the flat-shaped drill bit is convenient to regrind, the flat-shaped drill bit works reliably, and the flat-shaped drill bit has strong adaptability to the performance of the rock mass..The specifications of the slotted drill bits produced by our company are: 28, 30, 32, 36, 38, 40, 42, 50, 60, etc. The slotted drill bit is used with pneumatic rock drills such as Tianshui and Shenyang, and the slotted drill bit is suitable for use. Mining in coal mines, iron mines, gold mines, copper mines, lead-zinc mines and other mines, construction of railways, tunnels, railways, highways, etc..Slotted drill bit, slotted drill bit, pneumatic drill bit, slotted drill bit, slotted pneumatic drill bit, slotted pneumatic drill bit, horseshoe drill bit, horseshoe slotted drill bit, slotted drill bit for iron mines, one slotted drill bit for coal mines Flat drill bit, flat drill bit for hard rock, flat drill bit for granite, flat drill bit for mining, flat drill bit for alloy, flat drill bit for hard rock, and flat drill bit for super hard rock Drill bits, horseshoe-shaped air drill bits, flat drill bits for rock drills, flat drill bits for internal combustion rock drills, flat drill bits for pneumatic rock drills, flat drill bits for electric rock drills, flat drill bits for hand-held rock drills, The flat drill bit is often used with light internal combustion, electric, pneumatic and hydraulic rock drills. The flat drill bit is used to drill holes with a diameter of less than D50mm in various types of rocks..Due to its low price and other characteristics, the flat-head drill bit is still the main drill bit variety used in the medium and small diameter rock hole drilling projects in my country's mining industry.. 1. The specifications and varieties of the slotted drill bit are complete. The slotted drill bit ranges from diameter 20 to diameter 30, diameter 32 to diameter 43, diameter, etc.. 2. The material selection of the slotted drill bit is reasonable, and the manufacturing of the slotted drill bit is strictly in accordance with the ISO9001 quality management system for quality control. The slotted drill bit not only pays attention to the internal quality of the product, but also the surface treatment of the slotted drill bit is very fine.. 3. The design of the one-character drill bit is scientific, the appearance of the one-character drill bit is beautiful, the package of the one-character drill bit is unique, and the one-character drill bit has a very eye-catching traceability mark.The main alloy size of the slotted bit is 9*13.5 and 10*15 large alloy drill bits, 4. The product structure of the flat drill bit is reasonable. The flat drill bit is divided into high, medium and low grade products to meet the needs of different customers. The alloy classification of the flat drill bit is suitable for different hardness coefficients. rock.The flat drill bit can be applied to hard rock, hard rock, super hard rock, sandstone, marble, granite and other hard rock drill bits. The application scope of the flat drill bit: the flat drill bit can be used with various fully mechanized mining machines, fully mechanized excavators, etc. The continuous miner is used as a supporting tool, and the slotted drill bit is suitable for coal mining, iron ore mining, non-ferrous metal mining, roadway excavation engineering, etc.
The temperature of the molten pool is uneven, and the welding angle of the Audi wear-resistant flux-cored wire fed to the stoody method is unreasonably adjusted to achieve a uniform temperature in the molten pool. Pay attention to the location and speed of the fed stoody flux-cored wire n several development directions in the future welding technology Adding admin in the production or production enterprises, the development of the use of wear-resistant plate surfacing flux-cored wire welding technology is also continuously progressing with the progress of science and technology. For the future development of welding technology, perhaps all welding masters We all have some expectations.
The other side of the oblique blade is 22mm long, 6mm wide, and has a thickness of 0.6mm.Customers and friends in need are welcome to contact us and make customized production and processing according to the specifications you need..National Free Guangdong Sales Center n Carbide cutting tools, PCB electronics industry V-CUT blades, circuit board V-CUT machine special tungsten steel V cutting blades, electronic components cutting machine blades professional manufacturer production and wholesale Hebei Guanmian all Zhuzhou cemented carbide production Address: No. 8 Middle School Road, Baiguan Town, Lusong District, Zhuzhou City, Hunan Province-Hebei Guanmian Cemented Carbide Guangdong Sales Center Address: Building 25, Hardware, Electrical and Mechanical Business City, Xiaolan Town, Zhongshan City, Guangdong Province Manufacturer.
The welded carbide special-shaped tool is divided into two parts, usually the tool body is made of tool steel or 45 steel, the cutting part is made of special materials for wear-resistant carbide tools, and the tool body and the cutting part are welded by high frequency Combine it and then grind the blade.Welded carbide special-shaped tools have at least one more welding process than solid carbide special-shaped tools.The advantage is that it is economical, and the disadvantage of welding carbide special-shaped tools is cutting if the welding technology is not too hard..
The main products of our company are: various types of pick-shaped picks, knife-shaped picks for coal mining machines, tunneling teeth for roadheaders, rotary digging teeth for rotary drilling rigs, flat drill bits, flat drill bits, horseshoe drill bits , Cross drill bit, mining flat drill bit, flat air drill bit, button drill bit, drill pipe drill rod, milling gear for milling machine, and various types of mining drill bits, rock drill bits, and bolt drill bits.Our company's products are widely used in railways, highways, tunnels, subways, coal mines, geology and mining, metallurgy, water conservancy and other industries. The products sell well in more than 20 provinces, cities, and autonomous regions, and enter foreign markets such as Japan, the United States, and Europe. Praised by users.
deep hole threaded drill manufacturers support customization [Tungsten Carbide Inserts]
It is a company that produces drilling tools in the drilling tool industry and has domestic advanced production and inspection equipment..The business scope includes rock drilling tools, drill rods, drill bits, light drilling tools, heavy drilling tools, down-the-hole drilling tools, coal machinery and milling gears, etc., covering all fields of rock drilling system.Production and sales of other related machinery and equipment, etc..
Taper connection column tooth bit, taper connection column tooth bit is mainly used with pneumatic rock drill and taper rod. The drill bit is connected with the drill rod for drilling operations. It is mainly used for secondary crushing in mines and anchor rods. Support, tunneling and other fields.During drilling, the phenomenon that the drilling tool is stuck in the well and cannot move freely due to various reasons is called stuck. It mainly includes keyway stuck, sand stuck, well collapse stuck, differential pressure stuck, and reduced diameter stuck. , Falling object stuck drill, sand bridge stuck drill, mud pack stuck drill and drill tool fall off, stuck drill, etc..Formation structure, poor drilling fluid performance, improper operation, etc. may cause sticking.Must be analyzed for specific situations.In order to effectively remove the card.Keyway jams mostly occur in hard formations, with large changes in well deviation or azimuth.Where formed, when drilling, the drill string section rotates.
(1) When drilling rock, before the first opening of the eye is 2 to 5 cm deep.It is not advisable to use full wind. After 5 cm of drilling, full wind can be used, so that the rock will be smooth and the drill bit will not be bounced..It is not easy to damage the drill bit, otherwise, it is very easy to cause the cutting edge of'T to break, and the drill rod is very powerful..Laborious operation.It is also small to be able to drill smoothly, but it affects the drilling speed,
(2) in the broken rock.If there is a sticking phenomenon, you should look for the cause in time, whether the size of the drill bit is appropriate, whether there is any broken stone, etc., the width of the worn end face of the drill bit should not exceed 2 to 3 mm. Under normal circumstances, the inline drill bit should be scrapped with a sword. It can be polished 10-15 times, when the alloy sheet at both ends of the drill bit is left 3-5mm.It can be considered that the drill bit has reached the level of scrap, the type and reason of the damage of the deep-hole rock drilling cemented carbide bit. The main damage of the deep-hole rock drilling cemented carbide bit is the fracture of the bit body and the damage of the cemented carbide sheet..
What is a column tooth bit
Column tooth bit, also known as column tooth air drill bit, column tooth bit; it is a drill bit product produced by the multi-meter down-the-hole drill bit.
Since its establishment in 2009, the multi-meter down-the-hole drill bit has been focusing on customer needs, bringing together domestic drilling tool development experts and engineering and technical personnel, and at the same time cooperating with relevant domestic scientific research institutions to continuously strengthen investment in product innovation. Customers have different requirements for products, and they have domestically imported machining centers and heat treatment equipment as well as complete inspection systems.
The column tooth bit has 32, 40, 42 and other product models, and it has the characteristics of no grinding and fast drilling speed. The column tooth bit is made of YG13 alloy and 40 chrome steel body through welding, which has obvious advantages such as saving time and labor. , The connection method is simpler, more durable and has a longer service life, etc..
The column tooth drill is made by advanced processes such as circular hacksaw forging, hot forging, drilling and milling machine processing, etc..
What are the uses of column tooth bits
Column tooth bit and b22 drill pipe can be used together. The bit product is widely used in coal mine, iron ore, gold mine, copper mine, lead-zinc mine and other rock drilling projects, mining, railways, tunnels, and highways. And other engineering construction.
The multi-meter down-the-hole drill bit also focuses on the supply of accessories such as "drill bits", "coal drill bits", "drill pipes", "B19 drill pipes", "rock drill bits" and "impacters".
Column tooth bit is a new type of drill bit in which the cemented carbide is columnar and is embedded in the bit body in a point shape..
Advantages of column tooth bit
The blast hole is easy to open the door, not easy to stick, the blast hole is rounder, the drilling speed is higher, and the amount of coarse-grained cuttings, the broken specific work is low, the dust concentration on the working face is low, and the consumption of cemented carbide is also less. Grinding costs are also low, but the diameter of the borehole should not be less than 40mm.
Column tooth bits are being used more and more on-site due to their unique advantages.
In the standard, the matching tolerances of the diameter of the shank and the shank are stipulated.There are three types of shank (flange) shank, shank (lug) shank and spline shank, and shoulder shank for light pneumatic rock drills.The shank of the heavy rail type rock drill is always installed in the shank sleeve.Can be regarded as a part of a rock drill.Shank shank or spline shank.In the case of the same clearance between the shank and the shank, the longer the length of the shank, the less likely to be deflected when impacting the shank, thereby reducing the rock drilling speed, reducing the wear with the shank, and reducing the wear of the shank at the same time. life.If the length of the shank is too long, it will increase the weight of the drill rod itself and the rock drill. The shank must have a moderate length. At present, there are three types of shank lengths in the world for pneumatic rock drills, 108mm and 159mm..Which only applies to small rock drills.
Brazing rod and the entire rock drill bits) is a new way for humans to conquer rock and ore.It consists of a slender rod system, in dth drill pipe Under severe abrasion of rocks and ore, high pressure flow (or pressure) and erosion and erosion of mine water, it is pulled every minute..The load capacity of pressing, bending, twisting and rock drill is about 2000 to 9000 times. For high frequency impact.The impact energy is as high as 25-500J, which tends to cause stress corrosion fatigue fracture, and the service life is only tens of minutes to tens of hours. Rock drill bits are demanding in the basic industry of human machine tools, with short life, high technical content and large consumption. A kind of tool, excavator workers in more than 100 regions and regions in the world work 8 hours a day.More than half of them dig holes in rocks and ore, and the annual consumption of drilling tools required is about 50 times that of the domestic market..
Taper connection column tooth bit, taper connection column tooth bit is mainly used with pneumatic rock drill and taper rod. The drill bit is connected with the drill rod for drilling operations. It is mainly used for secondary crushing in mines and anchor rods. Support, tunneling and other fields.During drilling, the phenomenon that the drilling tool is stuck in the well and cannot move freely due to various reasons is called stuck. It mainly includes keyway stuck, sand stuck, well collapse stuck, differential pressure stuck, and reduced diameter stuck. , Falling object stuck drill, sand bridge stuck drill, mud pack stuck drill and drill tool fall off, stuck drill, etc..Formation structure, poor drilling fluid performance, improper operation, etc. may cause sticking.Must be analyzed for specific situations.In order to effectively remove the card.Keyway jams mostly occur in hard formations, with large changes in well deviation or azimuth.Where formed, when drilling, the drill string section rotates.
(1) When drilling rock, before the first opening of the eye is 2 to 5 cm deep.It is not advisable to use full wind. After 5 cm of drilling, full wind can be used, so that the rock will be smooth and the drill bit will not be bounced..It is not easy to damage the drill bit, otherwise, it is very easy to cause the cutting edge of'T to break, and the drill rod is very powerful..Laborious operation.It is also small to be able to drill smoothly, but it affects the drilling speed,
(2) in the broken rock.If there is a sticking phenomenon, you should look for the cause in time, whether the size of the drill bit is appropriate, whether there is any broken stone, etc., the width of the worn end face of the drill bit should not exceed 2 to 3 mm. Under normal circumstances, the inline drill bit should be scrapped with a sword. It can be polished 10-15 times, when the alloy sheet at both ends of the drill bit is left 3-5mm.It can be considered that the drill bit has reached the level of scrap, the type and reason of the damage of the deep-hole rock drilling cemented carbide bit. The main damage of the deep-hole rock drilling cemented carbide bit is the fracture of the bit body and the damage of the cemented carbide sheet..
What is a column tooth bit
Column tooth bit, also known as column tooth air drill bit, column tooth bit; it is a drill bit product produced by the multi-meter down-the-hole drill bit.
Since its establishment in 2009, the multi-meter down-the-hole drill bit has been focusing on customer needs, bringing together domestic drilling tool development experts and engineering and technical personnel, and at the same time cooperating with relevant domestic scientific research institutions to continuously strengthen investment in product innovation. Customers have different requirements for products, and they have domestically imported machining centers and heat treatment equipment as well as complete inspection systems.
The column tooth bit has 32, 40, 42 and other product models, and it has the characteristics of no grinding and fast drilling speed. The column tooth bit is made of YG13 alloy and 40 chrome steel body through welding, which has obvious advantages such as saving time and labor. , The connection method is simpler, more durable and has a longer service life, etc..
The column tooth drill is made by advanced processes such as circular hacksaw forging, hot forging, drilling and milling machine processing, etc..
What are the uses of column tooth bits
Column tooth bit and b22 drill pipe can be used together. The bit product is widely used in coal mine, iron ore, gold mine, copper mine, lead-zinc mine and other rock drilling projects, mining, railways, tunnels, and highways. And other engineering construction.
The multi-meter down-the-hole drill bit also focuses on the supply of accessories such as "drill bits", "coal drill bits", "drill pipes", "B19 drill pipes", "rock drill bits" and "impacters".
Column tooth bit is a new type of drill bit in which the cemented carbide is columnar and is embedded in the bit body in a point shape..
Advantages of column tooth bit
The blast hole is easy to open the door, not easy to stick, the blast hole is rounder, the drilling speed is higher, and the amount of coarse-grained cuttings, the broken specific work is low, the dust concentration on the working face is low, and the consumption of cemented carbide is also less. Grinding costs are also low, but the diameter of the borehole should not be less than 40mm.
Column tooth bits are being used more and more on-site due to their unique advantages.
In the standard, the matching tolerances of the diameter of the shank and the shank are stipulated.There are three types of shank (flange) shank, shank (lug) shank and spline shank, and shoulder shank for light pneumatic rock drills.The shank of the heavy rail type rock drill is always installed in the shank sleeve.Can be regarded as a part of a rock drill.Shank shank or spline shank.In the case of the same clearance between the shank and the shank, the longer the length of the shank, the less likely to be deflected when impacting the shank, thereby reducing the rock drilling speed, reducing the wear with the shank, and reducing the wear of the shank at the same time. life.If the length of the shank is too long, it will increase the weight of the drill rod itself and the rock drill. The shank must have a moderate length. At present, there are three types of shank lengths in the world for pneumatic rock drills, 108mm and 159mm..Which only applies to small rock drills.
Brazing rod and the entire rock drill bits) is a new way for humans to conquer rock and ore.It consists of a slender rod system, in dth drill pipe Under severe abrasion of rocks and ore, high pressure flow (or pressure) and erosion and erosion of mine water, it is pulled every minute..The load capacity of pressing, bending, twisting and rock drill is about 2000 to 9000 times. For high frequency impact.The impact energy is as high as 25-500J, which tends to cause stress corrosion fatigue fracture, and the service life is only tens of minutes to tens of hours. Rock drill bits are demanding in the basic industry of human machine tools, with short life, high technical content and large consumption. A kind of tool, excavator workers in more than 100 regions and regions in the world work 8 hours a day.More than half of them dig holes in rocks and ore, and the annual consumption of drilling tools required is about 50 times that of the domestic market..
Rotary drilling rig bit categories and uses [Tungsten Carbide Inserts]
Rotary drilling rig bit categories and uses
This article is organized and shared by Merit Drilling Rig Maintenance Network
Rotary drilling rig bit categories and uses:
Single-head auger (SSA) is a single-head single-screw auger bit. The single-head auger bit is designed for rock formations and soil layers above the water level, as shown in Figure 1..SSA spiral drill bits are divided into three types: SSA-I (single-head soil spiral drill), SSA-II (mixed single-head spiral drill) and SSA-III (single-head rock spiral drill), as shown in Figure 2..;
Figure 1 Schematic diagram of spiral drill
a) Single-head spiral drill bit;
b) Double-head spiral drill bit
Double-headed auger (DSA) is suitable for large-diameter and rock drilling. It is divided into double-headed single-screw and double-headed double-screw. DSA almost includes all types and specifications required..According to different soil quality, DSA is divided into: DSA-I (double-headed soil spiral drill), DSA-H (double-headed harder rock spiral drill), DSA-III (double-headed cone spiral drill), DSA-IV (double-head soft Rock auger) and DSA-V (double-headed hard rock auger) five types, see Figure 3.;
Figure 2 Schematic diagram of single-head spiral drill
Single-head soil auger bit; b) Mixed layer single-head auger bit; c) Single-head rock auger bit;
Figure 3 Schematic diagram of double-head spiral drill bit
a) Double-headed soil auger bit; b) Double-headed harder rock auger bit; c) Double-headed cone auger bit, d) Double-headed soft rock auger bit; e) Double-headed hard rock auger.
a) Rock auger bit.The tip of the rock auger bit is inlaid and welded with tungsten-cobalt carbide picks, which are mainly used for weathering bedrock, better cemented pebble stratum and various soil permafrost layers.
b) Cone screw rock drill bit.Used for harder bedrock, better cemented pebble stratum and hard permafrost.Among them, the single screw bit has a fast drilling speed, easy slag removal, and low rotation resistance.The double screw bit has good guiding performance and strong soil carrying capacity.Cone snails can generally be divided into 180 degrees, 270 degrees and 360 degrees. The harder the rock, the greater the taper of the head..
c) Straight screw rock drill bit.There are single head single screw, double head single screw and double head double screw.For drilling in medium-hard to hard weathered stratum and frozen soil.Compared with cone snails, it has better guidance and strong soil-carrying ability, but the rotation resistance is greater.Single screw bit has fast drilling speed, easy slag removal and low rotation resistance.The double screw bit has good guiding performance, strong soil carrying capacity, but large rotation resistance.
d) Soil spiral drill.The cutting tools are shovel-shaped wear-resistant alloy teeth or bucket teeth plus picks, which are mainly used for soil layers above the groundwater level, sand layers, dense sand layers with a small amount of clay, and gravel layers with small particle diameters..There are single head single screw, double head single screw and double head double screw.The single screw bit is suitable for drilling into the gravel layer and the clay layer with good cementation due to easy slag removal and low rotation resistance; the double screw bit has strong soil carrying capacity and good guiding performance, suitable for drilling into loose formations and soft and hard interbedded formations.
Rotary drilling rig drill bit category and use operating rules and use precautions:
a) Before drilling a new drilling tool, first check whether the drill teeth are complete and whether the connection is firm. Press lightly and slowly drill during operation..
b) Because this type of drill bit drills into the hard strata, it must not be drilled at a high bit weight and high speed when Thread drill bits. When it is difficult to drill a large boulder, it is necessary to lift a section of the drill tool and drill with light pressure. Time.
c)-Generally, the drill can be lifted by 2 to 3 pitch lengths under pressure drilling. The drill must be lifted slowly to prevent the collision between the drill bit and the hole wall and cause soil leakage and mechanical accidents in the hole..
d) In case of jamming when lifting the drill, move the drill tool up and down and rotate slowly at the place where the jam is encountered. Lift the drill after the jam is released. Do not lift the drill forcefully..
e) Reverse the drill tool when unloading soil, and it is strictly forbidden to lift up or down or swing left and right to hit other fixed objects to unload the soil.
f) It is found that the drill teeth have been severely worn or damaged, and the drill teeth of the same specification should be replaced in time.
g) If foreign objects are found in the hole, it is strictly forbidden to drill down or use the drill as an accident handling tool to handle the accident.
Merit Drilling Rig Maintenance Network shares the article "Types and Uses of Rotary Drill Bits".
This article is organized and shared by Merit Drilling Rig Maintenance Network
Rotary drilling rig bit categories and uses:
Single-head auger (SSA) is a single-head single-screw auger bit. The single-head auger bit is designed for rock formations and soil layers above the water level, as shown in Figure 1..SSA spiral drill bits are divided into three types: SSA-I (single-head soil spiral drill), SSA-II (mixed single-head spiral drill) and SSA-III (single-head rock spiral drill), as shown in Figure 2..;
Figure 1 Schematic diagram of spiral drill
a) Single-head spiral drill bit;
b) Double-head spiral drill bit
Double-headed auger (DSA) is suitable for large-diameter and rock drilling. It is divided into double-headed single-screw and double-headed double-screw. DSA almost includes all types and specifications required..According to different soil quality, DSA is divided into: DSA-I (double-headed soil spiral drill), DSA-H (double-headed harder rock spiral drill), DSA-III (double-headed cone spiral drill), DSA-IV (double-head soft Rock auger) and DSA-V (double-headed hard rock auger) five types, see Figure 3.;
Figure 2 Schematic diagram of single-head spiral drill
Single-head soil auger bit; b) Mixed layer single-head auger bit; c) Single-head rock auger bit;
Figure 3 Schematic diagram of double-head spiral drill bit
a) Double-headed soil auger bit; b) Double-headed harder rock auger bit; c) Double-headed cone auger bit, d) Double-headed soft rock auger bit; e) Double-headed hard rock auger.
a) Rock auger bit.The tip of the rock auger bit is inlaid and welded with tungsten-cobalt carbide picks, which are mainly used for weathering bedrock, better cemented pebble stratum and various soil permafrost layers.
b) Cone screw rock drill bit.Used for harder bedrock, better cemented pebble stratum and hard permafrost.Among them, the single screw bit has a fast drilling speed, easy slag removal, and low rotation resistance.The double screw bit has good guiding performance and strong soil carrying capacity.Cone snails can generally be divided into 180 degrees, 270 degrees and 360 degrees. The harder the rock, the greater the taper of the head..
c) Straight screw rock drill bit.There are single head single screw, double head single screw and double head double screw.For drilling in medium-hard to hard weathered stratum and frozen soil.Compared with cone snails, it has better guidance and strong soil-carrying ability, but the rotation resistance is greater.Single screw bit has fast drilling speed, easy slag removal and low rotation resistance.The double screw bit has good guiding performance, strong soil carrying capacity, but large rotation resistance.
d) Soil spiral drill.The cutting tools are shovel-shaped wear-resistant alloy teeth or bucket teeth plus picks, which are mainly used for soil layers above the groundwater level, sand layers, dense sand layers with a small amount of clay, and gravel layers with small particle diameters..There are single head single screw, double head single screw and double head double screw.The single screw bit is suitable for drilling into the gravel layer and the clay layer with good cementation due to easy slag removal and low rotation resistance; the double screw bit has strong soil carrying capacity and good guiding performance, suitable for drilling into loose formations and soft and hard interbedded formations.
Rotary drilling rig drill bit category and use operating rules and use precautions:
a) Before drilling a new drilling tool, first check whether the drill teeth are complete and whether the connection is firm. Press lightly and slowly drill during operation..
b) Because this type of drill bit drills into the hard strata, it must not be drilled at a high bit weight and high speed when Thread drill bits. When it is difficult to drill a large boulder, it is necessary to lift a section of the drill tool and drill with light pressure. Time.
c)-Generally, the drill can be lifted by 2 to 3 pitch lengths under pressure drilling. The drill must be lifted slowly to prevent the collision between the drill bit and the hole wall and cause soil leakage and mechanical accidents in the hole..
d) In case of jamming when lifting the drill, move the drill tool up and down and rotate slowly at the place where the jam is encountered. Lift the drill after the jam is released. Do not lift the drill forcefully..
e) Reverse the drill tool when unloading soil, and it is strictly forbidden to lift up or down or swing left and right to hit other fixed objects to unload the soil.
f) It is found that the drill teeth have been severely worn or damaged, and the drill teeth of the same specification should be replaced in time.
g) If foreign objects are found in the hole, it is strictly forbidden to drill down or use the drill as an accident handling tool to handle the accident.
Merit Drilling Rig Maintenance Network shares the article "Types and Uses of Rotary Drill Bits".
Why are the drill bits black, white and gold？ What is the difference？ Which one is good quality？ [Tungsten Carbide Inserts]
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Drilling is a very extensive processing method in the manufacturing industry. I believe that the little partners who are often in the front line of drilling will not be unfamiliar with the understanding of drills. When purchasing drills, the drills will have drills of different materials and colors, so different colors. How can you help the drill bit? Is the color related to the quality of the bit? Which color bit is better??
First of all: It is impossible to distinguish the quality of drills from the color alone. There is no direct and inevitable relationship between color and quality. Drills of different colors are mainly processed by different processes. Of course, you can make a rough judgment from the color, but the current quality of the drills is also poor. Will process their own colors to achieve the appearance of high-quality drills.
High-quality, fully ground high-speed steel drill bits are often usedwhiteAppeared, of course, the rolled drill can also be white by fine grinding of the outer circle. The reason for this is high quality. In addition to the material itself, the quality control during the grinding process is also quite strict, and there will be no burns on the surface of the tool..blackIt is a drill bit that has been nitrided. It is a chemical method that puts the finished tool in a mixture of ammonia and water vapor and passes 540-560C
heat preservation treatment to improve the durability of the tool..At present, most of the black drill bits on the market only achieve the color black (in order to cover the burn or black skin on the surface of the tool), but the actual use effect has not been effectively improved..
There are 3 processes for producing rock drill bits, Black is rolled, the worst.The white ones are trimmed and polished.Because it does not produce high-temperature oxidation, unlike rolling, the grain structure of the steel is not damaged. It is used to drill workpieces with slightly higher hardness..tanThe drill bit is called cobalt-containing drill in the industry. This is the unspoken rule of the drill bit industry.Cobalt-containing diamonds are originally white and are produced by grinding. When they are atomized in the later period, they become yellowish brown (generally called amber), which is currently the best in circulation..M35 (Co 5%) and another is Golden Yes, this kind of drill is called titanium-plated drill, divided into decorative plating and industrial plating.The decorative plating has no effect at all, it's just beautiful and golden.Industrial plating is very good, the hardness can reach HRC78, which is higher than the hardness of cobalt-containing diamonds
Judging from experience, in general, the white ones are generally all-ground high-speed steel drill bits, and the quality should be the best.The golden ones are titanium nitride-plated, and are generally either the best or the worst to fool people.The quality of black is also uneven. Some are made of very poor carbon tool steel, which is easy to anneal and rust at the same time, so it needs to be blackened..
Generally, when buying a drill bit, you can see the trademark on the drill bit shank and the mark of the diameter tolerance. The mark is clear, and the quality of laser or electric corrosion is not too bad..If it is a typeface embossed, if the edge of the word bulges, the quality of the drill is poor, because the bulged outline of the word will cause the drill bit to be less accurate, and the edge of the word is clear, which is very good with the cylindrical surface of the drill shank The bordered ones are of good quality.In addition, it depends on the cutting edge of the tip of the drill. The cutting edge of the fully ground drill is well opened, the spiral surface meets the requirements, and the quality is poor at the rear corner surface..
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