How to better choose the column tooth drill bit
2020-09-09
The competition in the drilling tool market is becoming more and more fierce, and the quality difference of column tooth drill bit products of different enterprises is becoming smaller and smaller. How to better to the user to choose the column tooth bit, to achieve the best use of the user under the condition of the lowest cost, to achieve the ideal economic and social benefits of dealers, to achieve long-term cooperation and development is the direction and key of every drilling tool industry personnel should strive.
What elements are included in the steel of the drill head pants? What role do they play?
2020-09-06
Carbon C: Mainly affects the strength and hardness of steel. Excessive carbon content will reduce the toughness and weldability of the steel. Although the increase of carbon content in steel can improve the strength and wear resistance of parts, it damages the toughness and manufacturability of steel. Therefore, when designing the carbon content of steel, the carbon content should be determined according to different conditions. The steel used for drill head body needs high strength, wear resistance and certain toughness. It is more appropriate to choose carbon content between 0.42 and 0.48.
Requirements for the material of the pants body of the drill head
2020-08-29
The drill bit contacts and breaks the rock mass during the drilling process, and is subjected to huge impact load and abrasive wear. The use conditions are extremely harsh, so the requirements for the steel used for the drill bit body are also special.
How does the column tooth drill bit fix the alloy to the drill bit
2020-08-25
The method of fixing teeth of drill bit refers to how to fix the hard alloy column teeth of rock drilling on the drill bit body. At present, there are three general methods of fixing teeth in China's drilling tool industry: welding, cold fixing teeth and hot setting teeth.
2020-08-18
The ball tooth drill bit is composed of hard alloy column teeth inlaid on the drill bit body. Compared with the chip bit, the ball tooth bit is free, and the number and position of the side and middle teeth can be reasonably determined according to the diameter of the drilling hole and the size of the rock breaking load, and the diameter of the bit is not limited. And because of its multi-point crushing, the efficiency of rock breaking is higher, which can not only effectively eliminate the blind area of rock breaking, but also avoid the repeated crushing of rock chips. In addition, because the abrasion of the alloy column is higher than that of the flake bit, its non-grinding life is longer, and the re-grinding workload is small, which shows high value under the operating conditions of mechanized rock drilling jumbo and deep hole mining.
What types of drill bits are divided
2020-08-07
The drill bit directly drills the rock and is the most vulnerable part of the rock drilling tool. It is composed of rock-drilling hard alloy embedded in the drill head body. According to the use of rock drilling alloy bit shape can be divided into the following categories: 1. chip bit, there is mainly a word type drill bit, three edge type drill bit, cross type drill bit, X type drill bit. 2. Column tooth drill bit includes tapered column tooth drill bit, threaded column tooth drill bit and high and low wind pressure down-the-hole column tooth drill bit. 3. Teeth composite drill bit, tooth wheel drill bit, etc.
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