Tungsten carbide shield cutter is an important part of shield tunneling machine, and supercoarse tungsten carbide is an important raw material for manufacturing the shield cutter. According to the experts, with the development of domestic shield technology, shield tunneling machines are more and more widely used in subway, municipal and underground pipe network construction projects. As the key raw material of shield cutter, the performance of tungsten carbide determines the life of shield cutter, and also determines the digging efficiency and economic benefit of the entire project.

Tungsten carbide straight flute tap is a type of tungsten carbide tap, which is more wear-resistant with higher hardness, better tapping performance and longer service life than straight flute taps made of steel materials. Therefore, it is often used for processing aluminum parts, stainless steel parts and other steel parts, etc. Such straight flute taps made of high-quality tungsten carbide powder are suitable for applying to drilling machines, tapping machines, automatic lathes and milling machines.

Tungsten carbide spiral flute tap is a kind of tapping tool, and it is also well-known as the most mainstream tool for processing internal thread. The processing speed of spiral flute taps made using high quality tungsten carbide powder as raw material is several times faster than that of high-speed steel spiral flute taps. It means that using the tungsten carbide spiral flute tap, the processing efficiency is high and the cost is relatively low.

Tungsten carbide screw tap is the most mainstream tool for processing internal threads (tapping) as it has characteristics of high hardness, high strength, precise thread, sharp and wear-resistant cutting edges, fast processing speed, high precision, good chip removal effect and durability. And therefore, it has wide range of applications in tapping stainless steel, die steel, cast iron, alloy steel and carbon steel, etc.