Several ways to improve the life of tapered button bits:
1. Continuous improvement from the structure of rock drilling machinery, for example, from the development of pneumatic rock drills with a big piston at one end and a small piston at the other end to the equal-diameter cylindrical piston of a hydraulic rock drill. While ensuring the continuous improvement of rock drilling speed, the rock drilling stress is changed. Waveshape, and reduce the damage stress acting on the drill rod;
2. Improve the comprehensive mechanical properties of the drill rod material and the production process level of hollow steel, and minimize the internal and external defects of the drill rod to ensure the high quality and service life of the drill rod. Of course, the correct operation and management during rock drilling, the good cooperation between the front tools, and their respective machining accuracy are also the basic conditions to ensure the life of the drill rod.
The manufacturing process of tapered button bits is the material selection, hollow steel production process selection, and brazing process. The brazing process mainly includes forging, machining, heat treatment, surface strengthening, anti-corrosion treatment, etc. The way to improve the life of tapered button bits is to comprehensively consider the above aspects, focus on solving the weak links, and continuously improve and perfect the process requirements.