The carbide drill bit is a drilling engineering.

The carbide drill bit is broken rock against the impact load generated by drilling and its own rotation. In the rock drilling, the drill bit is subjected to high frequency impact load, and is subject to a variety of composite stresses such as twisting, bending, stretching, compression, and subjected to rock, rock and mineral water. Wear and corrosion of media.

The gear drill bits used at home and abroad are mostly three tortane drills. The characteristics of this drill bit are: the axial pressure and impact load distribution are large and uniform, and can make full use of effective space, and drilling will be smooth. The size and shape of the rock drill bit must be applied to the characteristics of the rock, which requires good wear resistance, high strength, not broken and broken. The carbide teeth used by the mole drill bits mainly include: spherical teeth, cone teeth, wedge teeth, wedge teeth and flat top teeth for the wheel back and the claw tip.

In general, the germplating wheel drilling into the very hard rustic layer mainly uses spherical teeth, the drilling is 892 ~ 1339MPa, the rotational speed is 50 ~ 80R / min; drilling into the hard and middle and hard rock formations used a cousin tooth, drill The pressure is 714 ~ 1071MPa, the rotational speed is 60 ~ 100R / min; the drilling of the soft and medium sofa layer uses the wedge or wedge teeth, the drilling is 535 to 803 MPa, and the rotational speed is 80 to 120 r / min.

The carbide drill bit is divided into four types of foundation types: integral carbide drill bit, carbide resettable blade drill bit, welded carbide drill bit and can be changed to hard alloy tooth drill bit. Each drill bit has the benefits suitable for specific processing premises.