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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.




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