Cemented carbide drill is a kind of equipment for drilling projects. A drill bit used by Yanxin drilling. The steel cylindrical drill is named after the tungsten carbide inlaid. The shape of the hard alloy cutting and the number of welding on the drill is different. The arrangement method and inlaid angle are different. The upper part of the drill is connected to the rock pipe, and there is a sink on the side of the drill head, and there is also a water inlet on the bottom lip surface. The sinks and water mouths are to ensure the circulation of the flushing solution, and the effect of eliminating rock powder and cooling drills. When drilling into the clay layer and the shale layer, in order to increase the gap, the ribs are welded on the inner and outer wall of the hard alloy drill, which is called the ribs. You can use needle -shaped hard alloy self -grinding drills in highly polished hard ground. Generally, the cemented carbide drills the rock with the stratum of the Ⅱ -level level;

During the production and manufacturing, the main cutting edge of the drill head will produce a lot of burrs. Such burrs are subtle. Under a 100 -fold microscope drill, the mouth of the blade of the edge of the bond is a sawtooth. After the phenomenon of lumping, the blade began to fall off. This gap will exacerbate wear during cutting, and severely reduce the life of the knife. Now there is a perfect way to solve this problem, that is, passivation of the drill bit. The main cutting blade passivation makes the blade mouth form an arc shape, reducing the drill head blade band blade, and can improve the surface quality of the workpiece after the drill.

The passivation treatment is also called reinforced treatment. After this process, the cemented carbide drillwill make a very small R arc in front of the front blade of the cemented carbide drill, which disperse the cutting resistance and eliminate some subtle subtleties on the blade and ligaments. Saw tooth -like, thereby enhancing the rigidity of the blade.