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What is Tungsten Fishing Bead? [Tungsten Fishing Bead]
What is Tungsten Fishing Bead?
Fishing beads can be as an attractor or be a component of the rig when you are fishing. Fishing beads can be made from plastic, brass, lead, tungsten and so on. And they come in many different colors.There are also luminous beads made of plastic which glow in low light when the water you are fishing has low visibility to attract fish. However, tungsten alloy fishing bead becomes more and more popular because of its good properties. Tungsten fishing bead is made from tungsten alloy, so some peple call tungsten alloy fishing bead as tungsten fishing bead.
Why Choose Tungsten Fishing Beads?
Tungsten fishing beads are twice as heavy as brass and heavier than lead. Perfect for any fly that has to get down deep. And tungsten fishing bead also enable the fisherman to fish in fast flowing water where the fish lie deep. Furthermore ,tungsten alloy fishing bead is non-toxic, therefore tungsten fishing lead is friendly to the environment. So tungsten alloy fishing bead is the best friend to fisher man.
Fishing beads can be as an attractor or be a component of the rig when you are fishing. Fishing beads can be made from plastic, brass, lead, tungsten and so on. And they come in many different colors.There are also luminous beads made of plastic which glow in low light when the water you are fishing has low visibility to attract fish. However, tungsten alloy fishing bead becomes more and more popular because of its good properties. Tungsten fishing bead is made from tungsten alloy, so some peple call tungsten alloy fishing bead as tungsten fishing bead.
Why Choose Tungsten Fishing Beads?
Tungsten fishing beads are twice as heavy as brass and heavier than lead. Perfect for any fly that has to get down deep. And tungsten fishing bead also enable the fisherman to fish in fast flowing water where the fish lie deep. Furthermore ,tungsten alloy fishing bead is non-toxic, therefore tungsten fishing lead is friendly to the environment. So tungsten alloy fishing bead is the best friend to fisher man.
Why better to use three-flute endmill for roughing aluminum？
Two-flute milling cutters and 3-flute?milling cutters are usually used to process aluminum alloys materials. Simply distinguished from the surface by the number of blades,?2-flute carbide end mill are suitable for rough Machining, 3-flute end mill?is selected for finishing.
Let’s first understand the characteristics of aluminum alloy materials:
1. The hardness of aluminum alloy is low. Compared with titanium alloy and other quenched steels, the hardness of aluminum alloy is lower. Of course, it has been heat-treated or die-cast aluminum alloy has a high hardness. The HRC hardness of ordinary aluminum plates are generally below HRC40 degrees. Therefore, when machining aluminum alloy, the load of the tool is small. Because aluminum alloy has better thermal conductivity, the cutting temperature of milling aluminum alloy is relatively low, which can increase its milling speed.
2. Low plasticity of aluminum alloys have low plasticity and low melting point. When processing aluminum alloy, the sticking problem is serious, the chip removal performance is poor, and the surface roughness is relatively high. In fact, the main reason for processing aluminum alloy is that the effect of sticking knife and roughness is not good. As long as the two major problems of sticking knife and processing surface quality are solved, the problem of aluminum alloy processing will be solved.
3. The tool is easy to wear because the unsuitable tool material is used. When machining aluminum alloy, the tool wear is often accelerated due to problems such as tool sticking and chip removal.
Generally, 3-blade aluminum milling cutters are used to process aluminum alloys. Secondly, due to the difference in processing conditions, 2-flute?ball-end Water Well Drilling Rig cutters?or 4-blade flat?endmill bits?are likely to be used. However, it is recommended that in most cases, a 3-flute flat-bottomed end mill can be used.
1. The choice of tungsten steel milling cutter for aluminum is generally 3 flutes, and the material is generally YG cemented carbide, which can reduce the chemical affinity of the tool and aluminum alloy. General CNC tool brands have a series of special milling cutters for processing aluminum alloy.
2. Milling cutters for high-speed steel and aluminum are relatively sharp, and they can also process aluminum alloys well.
3. Cutting parameters of milling aluminum alloy.
Generally, high-speed and large-feed milling can be selected for processing ordinary aluminum alloy.
Secondly, choose a larger rake angle as much as possible to increase the chip space and reduce the phenomenon of sticking. If it is a finishing aluminum alloy, you cannot use water-based cutting fluid to avoid the formation of small pinholes on the processed surface. Generally, kerosene or diesel oil can be used as the cutting fluid for processing aluminum plates.
The cutting speed of machining aluminum alloy milling cutters differs due to the material and parameters of the milling cutter, and the processing technology. The specific cutting parameters can be processed based on the cutting parameters given by the manufacturer.
Let’s first understand the characteristics of aluminum alloy materials:
1. The hardness of aluminum alloy is low. Compared with titanium alloy and other quenched steels, the hardness of aluminum alloy is lower. Of course, it has been heat-treated or die-cast aluminum alloy has a high hardness. The HRC hardness of ordinary aluminum plates are generally below HRC40 degrees. Therefore, when machining aluminum alloy, the load of the tool is small. Because aluminum alloy has better thermal conductivity, the cutting temperature of milling aluminum alloy is relatively low, which can increase its milling speed.
2. Low plasticity of aluminum alloys have low plasticity and low melting point. When processing aluminum alloy, the sticking problem is serious, the chip removal performance is poor, and the surface roughness is relatively high. In fact, the main reason for processing aluminum alloy is that the effect of sticking knife and roughness is not good. As long as the two major problems of sticking knife and processing surface quality are solved, the problem of aluminum alloy processing will be solved.
3. The tool is easy to wear because the unsuitable tool material is used. When machining aluminum alloy, the tool wear is often accelerated due to problems such as tool sticking and chip removal.
Generally, 3-blade aluminum milling cutters are used to process aluminum alloys. Secondly, due to the difference in processing conditions, 2-flute?ball-end Water Well Drilling Rig cutters?or 4-blade flat?endmill bits?are likely to be used. However, it is recommended that in most cases, a 3-flute flat-bottomed end mill can be used.
1. The choice of tungsten steel milling cutter for aluminum is generally 3 flutes, and the material is generally YG cemented carbide, which can reduce the chemical affinity of the tool and aluminum alloy. General CNC tool brands have a series of special milling cutters for processing aluminum alloy.
2. Milling cutters for high-speed steel and aluminum are relatively sharp, and they can also process aluminum alloys well.
3. Cutting parameters of milling aluminum alloy.
Generally, high-speed and large-feed milling can be selected for processing ordinary aluminum alloy.
Secondly, choose a larger rake angle as much as possible to increase the chip space and reduce the phenomenon of sticking. If it is a finishing aluminum alloy, you cannot use water-based cutting fluid to avoid the formation of small pinholes on the processed surface. Generally, kerosene or diesel oil can be used as the cutting fluid for processing aluminum plates.
The cutting speed of machining aluminum alloy milling cutters differs due to the material and parameters of the milling cutter, and the processing technology. The specific cutting parameters can be processed based on the cutting parameters given by the manufacturer.
Application and production process of carbide round bar
Cemented carbide round bar?is mainly used in metal cutting tool manufacturing, wood, plastic required hardness and wear resistance, corrosion resistance products manufacturing, and other industries. It has many outstanding excellent properties. Today, I will introduce the application of cemented carbide round bar and its production process, so that you could have a deeper understanding of cemented carbide round bar.
The main characteristics of cemented carbide round bar are stable mechanical properties, easy welding, high wear resistance and high impact resistance. Carbide round bar is mainly used for drill, end mill and reamer. It can also be used for cutting, stamping and measuring tools. Widely used in the field of national production and processing. For example: micro drill in PCB industry, electrode rod in photoelectric communication industry, tungsten steel drill, drill shank, rock drill bits,push rod, wear-resistant precision parts in machining industry, are the preferred high-quality materials for integral CNC milling cutter and machining cutter with hole.
Cemented carbide round bar, also known as tungsten steel round bar, is a kind of alloy material with high hardness and high strength, which is made of cemented carbide (WC) as the main raw material, plus other precious metals and paste phase by powder metallurgy method.
The production of cemented carbide round bar has the following characteristics
1. Using fine tungsten carbide and imported cobalt powder as raw materials.
2. Low pressure sintering technology is used for standardized production.
3. It has high strength and hardness.
4. It has the characteristics of red hardness, good wear resistance, high modulus of elasticity, high bending strength, good chemical stability (acid resistance, alkali resistance, high temperature oxidation resistance), good impact toughness, low coefficient of expansion, and similar thermal and electrical conductivity to iron and its alloys.
5. High tech precision equipment: 10MPa low pressure sintering furnace imported from Germany.
6. New technology: vacuum high temperature and high pressure sintering. In the final stage, pressure sintering is used to reduce porosity, improve compactness and greatly improve mechanical properties of products.
7. Product features: there are many material brands, which can meet the needs of different uses; Complete specifications, accurate blank size (reduce processing capacity, improve production efficiency).
The main characteristics of cemented carbide round bar are stable mechanical properties, easy welding, high wear resistance and high impact resistance. Carbide round bar is mainly used for drill, end mill and reamer. It can also be used for cutting, stamping and measuring tools. Widely used in the field of national production and processing. For example: micro drill in PCB industry, electrode rod in photoelectric communication industry, tungsten steel drill, drill shank, rock drill bits,push rod, wear-resistant precision parts in machining industry, are the preferred high-quality materials for integral CNC milling cutter and machining cutter with hole.
Cemented carbide round bar, also known as tungsten steel round bar, is a kind of alloy material with high hardness and high strength, which is made of cemented carbide (WC) as the main raw material, plus other precious metals and paste phase by powder metallurgy method.
The production of cemented carbide round bar has the following characteristics
1. Using fine tungsten carbide and imported cobalt powder as raw materials.
2. Low pressure sintering technology is used for standardized production.
3. It has high strength and hardness.
4. It has the characteristics of red hardness, good wear resistance, high modulus of elasticity, high bending strength, good chemical stability (acid resistance, alkali resistance, high temperature oxidation resistance), good impact toughness, low coefficient of expansion, and similar thermal and electrical conductivity to iron and its alloys.
5. High tech precision equipment: 10MPa low pressure sintering furnace imported from Germany.
6. New technology: vacuum high temperature and high pressure sintering. In the final stage, pressure sintering is used to reduce porosity, improve compactness and greatly improve mechanical properties of products.
7. Product features: there are many material brands, which can meet the needs of different uses; Complete specifications, accurate blank size (reduce processing capacity, improve production efficiency).
An Article about Cutting Performance of Ball Nose Endmill.
Ball-end milling cutters are 360 DTH hammer cutters with similar blades that are assembled on a milling machine to mill various curved surfaces and arc grooves. Ball nose milling cutters are also called R cutters, which can mill die steel, cast iron, carbon steel, alloy steel, tool steel, and general iron. They are end mills. It has a wide range of applications in industries such as mold manufacturing, automobile manufacturing, aerospace and electronic communication products.
Ball end mills are generally manufactured by grinding, and the sharpening is a very critical process in the production. At present, there are two main types of sharpening methods used in China: one is to use simple sharpening equipment; the other is to use imported expensive RTCP sharpening machine tools for sharpening.
The most significant feature of ball nose end mills is that the end eccentric drill bits edge (ball edge) of the main cutting edge is an “S”-shaped space curve.
Classification of ball endmills.
According to the material, it is divided into: high-speed steel ball end mill, cemented carbide ball end mill, CBN ball end mill, etc.
Based on the structure, there is two categories: cylindrical and conical ball end mill. Cylindrical ball endmills are divided into straight shank and tapered shank cylindrical ball end mills; conical ball end mills are divided into straight or tapered shank Conical type.
In the market, we can also divide it into indexable ball end mills, integral ball nose mills and chip-mounted ball end mills.
Advantages of ball nose endmills.
Ball end mills are point-contact machining, so the machining surface accuracy is particularly high, and it occupies an important position in the CNC machining of molds and free-form surfaces. Through its structural analysis, it can be concluded that the S-shaped ball endmill has the following advantages:
(1) The ball edge of the ball end milling cutter can be used for axial feed or lateral feed. It can easily process the cavity surface of the mold and other complex curved surfaces;
(2) The ball blade is an S-shaped arc blade, and there is no sharp corner part on the blade, which will not cause local concentrated wear, and the tool has high durability;
(3) During milling, since the ball edge is an S-shaped cutting edge, the cutting-in and cutting-out process is relatively stable. Experiments have proved that compared with the flat-blade ball end mill, when milling with an S-shaped ball end mill, not only the three cutting components are relatively small, but also the three components fluctuate during the cutting-in and cutting-out process. The scope is relatively small;
(4) The blade inclination angle of each point on the S blade is different. Due to the blade inclination angle, the chips can be smoothly discharged along the outer edge of the cutting-edge direction, which can effectively prevent the chips from sticking to the blade and avoid damage to the blade.
With the popularity of CNC machine tools in my country’s manufacturing industry, the demand for ball end mills is increasing, and its production has broad market prospects. For more discussion, please contact Melody at UKO!
How much is the 140 down-the-hole drill bit [drill bits]
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
What are the common types of down-the-hole drills
Drilling Tools is a mining machinery tool accessories manufacturer integrating product development, production, custom processing and after-sales service..Our factory adopts domestic advanced equipment, superb heat treatment technology, mass production of various diamond drill bits, diamond composite anchor rod bits, cemented carbide drill bits, in-line pneumatic drill bits, column tooth drill bits, coal drill bits B22 pneumatic drill rods, B19 anchors Rod drill pipe, geological drill pipe, spiral drill pipe, coal drill pipe, water exploration drill pipe, pneumatic rock drill series, etc., Widely used in mining, tunneling, engineering construction projects, etc..my factory All current products from raw materials to finished products are strictly inspected in accordance with ISO9001:2000 quality system standards and maintain continuous and effective operation..The company's products are sold to major mining bureaus, coal mines, coal mining machinery factories and distributors throughout the country, and the product quality has been unanimously praised by users.
Down-the-hole drill bit price support customized [drill bits]
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 [drill bits]
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 [drill bits]
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.
Jiahe County One-word Rock Drilling Bits Direct Sales
Commonly used models of slotted drills: 28 32 34 36 38 40 42, of which the most used for 40 models.Use of flat-head bit: |160; suitable for light rock drills, drilling into rock holes with a diameter of less than 50mm, suitable for rock formations with low hardness.Widely used in coal mines, iron mines, gold mines, copper mines, lead-zinc mines and other mines, as well as tunneling in railway, highway, and water conservancy construction.|160;Characteristics of slotted bit: Use high-quality steel and alloy, with high toughness and high wear resistance, high production efficiency. Simple manufacturing process, easy to use, low price, and strong adaptability to rock mass performance. A drill bit that can alleviate sudden changes in the drilling state during drilling operations in rock, coal, concrete, etc., and stabilize the drilling operation. Even when large chips are generated, the drilling efficiency is not reduced..Shandong China Coal insists on demand-oriented and win-win as the goal; seeks product development with innovative ideas.Look forward to working with you!
Master the welding angle, appropriately slow down the welding speed and increase the current. I am not proficient in the burn-through technique, the current is large or the welding speed is slow, reduce the current or speed up the welding speed, and strengthen the basic skills training. The welding seam surface damages the arc inaccurate, and the ground wire If the contact is not good, the arc ignition must be accurate, and the arc must not be ignited on the surface of the weldment. The ground wire is connected to the weld and the tungsten electrode is clamped. Uneven walking speed, uneven wire feeding speed, welding speed, wire feeding should be uniform, strengthen basic skills training, undercut welding angle is incorrect.
Zhongshan, Foshan, Shenzhen, Zhuhai, Dongguan, Jiangmen, Zhengzhou, Henan, Suzhou, Jiangsu, Wuxi, Dalian, Liaoning, Ningbo, Wenzhou, Shijiazhuang, Handan, Fujian, Xiamen, Chongqing, Guangzhou, Shanghai Cemented carbide product through train: cut the foot Machine blade V-CUT blade Cemented carbide sheet Cemented carbide round bar Cemented carbide mold material Cemented carbide blade Cemented carbide stamping die Cemented carbide progressive die record: Xiang ICP No. Xiang Public Network Security No. Remarks: Partial The content and pictures are from advertising creativity. More attention: cemented carbide blades, cemented carbide tools, non-standard special-shaped tools, tungsten steel blades, tungsten steel tools, n cemented carbide tools.
Such as solar welding, resistance spot welding, using the development of electronic technology to improve the power factor of the welding machine, etc..2 Computer application in welding The arc welding equipment microcomputer control system can analyze and control multiple parameters such as welding current, welding speed, arc length, etc., and display and retain data for welding operation procedures and parameter changes, so as to give Exact information about welding quality.At present, various control systems established with computer as the core include welding sequence control system, PID adjustment system, good control and adaptive control system, etc..
The specifications of the slotted drill bit 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. eccentric drill bits The head is suitable for mining in coal mines, iron mines, gold mines, copper mines, lead-zinc mines, and 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..
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