Characteristics of tungsten carbide drills

The main components of carbide drill material are tungsten carbide and cobalt, which account for 99% of all components, 1% for other metals, so it is called tungsten steel (hard alloy).  Tungsten steel is a sintered composite material containing at least one metal carbide.  Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide and tantalum carbide are common components of tungsten steel.  The grain size of the carbide components (or phases) is usually between 0.2 and 10 microns, and the carbide grains are held together using a metal binder.  Bonding metals are generally ferrous metals, commonly used is cobalt, nickel.  Hence the tungsten-nickel alloy and tungsten-cobalt titanium alloy. 

Tungsten steel bit material sintering molding is to press the powder into billet, and then into the sintering furnace heating to a certain temperature (sintering temperature), and maintain a certain time (holding time), and then cooling down, so as to get the required performance of the material.

The hard alloy drill bit produced by Zhuzhou Jinxin has the following characteristics: the red rigidity can reach 800-1000 degrees, the cutting speed is 4-7 times higher than that of high-speed steel, and the cutting efficiency is high.