The rock drill bit is a tool commonly used in mining and construction engineering, and it is also part of the rock drilling tools that directly drills rocks. It can help workers in performing precise chiseling on hard rock or concrete. Therefore, it is also the most vulnerable part of rock drilling tools. The rock drill bit is formed by inlaying or welding the cemented carbide on the carbide steel carrier. To ensure the proper use and long service life of rock drill bits, it is necessary to choose high-quality steel as the manufacturing material.
What are the characteristics of high-quality steel?
First, we need to consider the strength and hardness of the steel. Because a rock drill bit usually operates on hard rock, it must be hard and strong enough to withstand the pressure and impact of chiseling. Therefore, high-strength and hard steel should be selected when manufacturing rock drill bits.
Second, durability issues also need to be considered. Since rock drill bits will endure repeated hammering and friction during use, it is necessary to choose high-quality steel that can resist wear and corrosion. It can effectively prolong the service life of rock drill bits and avoid unnecessary effects of frequent replacement on work efficiency.
Finally, it is also necessary to pay attention to processing technology. For the manufacture of rock drill bits, the quality of the processing technology is also critical. If processed improperly, it may affect the use effect and service life of the rock drill bit. Therefore, advanced technology and techniques need to be used in the manufacturing process to ensure that the quality of rock drill bits meets the standards.
Performance Comparison of Three Kinds of Steels for Rock Drill Bits
Comparison of multi-impact fatigue
The failure of rock drill bits is closely related to multi-impact fatigue. The data show that in the results of multi-impact fatigue tests, 45CrNiMo1V steel has a higher service life, followed by 30CrNi3Mo steel, and finally 40Cr steel.
Tensile comparison
Data show that, under the same heat treatment conditions, 45CrNiMo1V steel than 30CrNi3Mo steel, 40Cr steel has higher tensile strength, yield strength, etc.
Comparison of wear resistance
Data show that the rock drill bit made of 45CrNiMo1V steel has a higher hardness value, indicating better wear resistance.
In conclusion, choosing high-quality steel is the key to manufacturing high-quality rock drill bits. Only by selecting suitable steel materials and strictly controlling the processing process can durable, efficient, and accurate rock drill bits be produced to provide reliable assistance for mine and building construction.