The difference between the steel body and the matrix of diamond core drill bits

Diamond core drill bits are increasingly used in drilling, coal mining and other industries, but few people know that core drill bits can be divided into steel body and matrix body in terms of material. What are the characteristics of each of them?

The shape of steel body diamond core drill bits is not limited by the strength of the blade. The main body of the diamond crown has high strength. Diamond core drill bits have high brazing strength. It is easy to repair after use. The production process is short, the efficiency is high, and the production cost is lower than matrix.

The bit body of the matrix diamond core drill bit is made of cast tungsten carbide powder and impregnated materials through pressureless impregnation and sintering. The shape of the drill bit body is indirectly realized by the shape of the mold. The mold consists of three parts: the bottom mold, the middle mold and the upper mold. The design and processing of the middle mold and upper mold of the mold are easy to implement.

However, archetypes are entities with complex surface features. The shape parameters of the core drill bit, the position and direction parameters of the cutting teeth, and the hydraulic structure parameters are all realized through the shape of the bottom mold.

Therefore, the design and processing of the bottom mold are the most important in mold design and processing. Therefore, the design and processing accuracy of the carcass bottom mold are directly related to the quality of the core drill bit. The quality of the matrix depends on the quality of the grinding tool, which is the most important aspect of the quality of the matrix diamond core drill bit.