On the advantages of powder injection molding of cemented carbide

cemented carbide powder injection molding technology advantage

Injection molding technology for the production of powder metallurgy parts of the raw materials required to be harsh, in the range of 0.1-10 m particle size of the powder produced products are easy to achieve high dimensional accuracy. The current hard alloy used raw material production basically belong to the size range, meet the requirements of raw material powder MIM technology, so hard alloy powder can be directly applied to injection molding process, raw material cost is not increased, it is hard alloy injection forming technology is a big advantage.

Hard alloy with high hardness, high strength, wear resistance, corrosion resistance, high temperature resistance and expansion coefficient is small wait for a series of advantages, is indispensable for metal processing, mining, oil drilling, national defense and military tools and materials. In addition, in recent years hard alloy in a watch case, the decoration wear-resistant parts has also been widely used.

The traditional hard alloy production method (pressing and sintering method) can only produce relatively simple products, thus limiting the scope of application of cemented carbide. Cold, hot and other static pressure can produce complex shape products, but the cost is very high, not suitable for mass production. Hard alloy injection forming technology and widen the application fields of the hard alloy, the technology can to lower the cost of producing a near net shape, complex geometry and ordinary molding and other methods are difficult to manufacture the product.