Cemented carbide for Coal Drilling

Product Description

Tungsten carbide used in coal mining tools are divided into two types: flat teeth and pickaxe teeth.

Tungsten carbide is formed by powder metallurgy processes using refractory metal hard compounds and bonding metals through powder preparation, compression molding, and high-temperature sintering, it has a series of excellent characteristics. Including high hardness, temperature, and wear resistance, exceeding the room temperature hardness of high-speed steel at 600 ℃ and exceeding the room temperature hardness of carbon steel at 1000 ℃, it has high compressive strength and elastic modulus, and lower impact toughness and smaller thermal shrinkage coefficient. This tungsten carbide with excellent performance has been widely used in coal mining, geological exploration, mining, and other fields.

Features of Cemented carbide for Coal Drilling

advantages of Cemented carbide for Coal Drilling

The most commonly used tungsten carbide in coal mining tools is YG8, and hard alloys such as YG6 and YG4C can also be used. In the coal mining industry, when using hard alloy to drill into softer rocks, the efficiency is 15 to 20 times higher than that of high-speed steel drill bits, 25 to 40 times higher than that of carbon steel drill bits, and the productivity can be increased by 50% to 200%.