tungsten carbide refers to steels containing tungsten, such as high-speed steel and certain hot-work die steels. Tungsten in the steel has a significant improvement in the hardness and heat resistance of the steel, but its resistance will drop sharply. The main components of cemented carbide are tungsten carbide and cobalt, which account for 99% of all components, and 1% is other metals, so it is also called tungsten carbide.
tungsten carbide mould
Polishing refers to the use of mechanical, chemical or electrochemical effects to reduce the surface roughness of the workpiece to obtain a bright and smooth surface. The following editor of Wanguan Hardware Machine Power Network has sorted out four common polishing methods for special-shaped tungsten carbide: 1. Polishing methods for special-shaped tungsten carbide inner holes Most manufacturers use tungsten carbide to polish, mainly because special-shaped products are difficult to polish. For example, the inner hole is irregular in shape, and the inner hole can be filled with cloth strips to fix the workpiece. Two people When the product gets hot, the finish becomes a mirror surface.
1. Ultrasonic die tools-saving polishing grinds and polishes various cavities, curved surfaces, deep grooves, deep holes, blind holes, and spherical surfaces. "Including the maintenance of the die tools cavity with good geometry and reasonable shape, good and sharp parting line, R position and straight jaws are not deformed," the product reaches the international level.
2. Fine grinding steel skin texture and trachoma Due to the frequent occurrence of trachoma and orange skin texture in die tools steel in recent years, our company has grasped a set of effective methods to deal with the above problems after many years of practice, so that the die tools can be improved by about 90%. And it is designated by many steel material suppliers to solve the steel material grain, pitting, and pinholes. Have unique experience in chrome-plating thickening of various die tools and chrome-plating thickening of optical lenses. Steel-bonded cemented carbide is a new type of die tools material, which uses one or several carbides (titanium carbide, tungsten carbide) as the hard phase, and alloy steel (such as high-speed steel, chromium-molybdenum steel) powder as the bond Agent, powder metallurgy materials made by batching, mixing, pressing and sintering. Its function lies between steel and cemented carbide. It not only has high strength and resistance, but also can be processed by various machining and thermal processing, and has the high hardness of cemented carbide (after quenching and tempering, it can reach (68～73) HRC and high wear resistance. Therefore, It is very suitable for making various die tools.
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