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Where are the difficulties in powder metallurgy?
Apr 18, 2018

Traditional powder metallurgy iron parts - gears as an example

Many times the requirements for mechanical properties are not high. In the case of high dimensional accuracy requirements, the general density can be between 6.9 and 7.1, the molding process requirements are not high, the sintering process requirements are high, and the sintering deformation is prevented, and Cu can be increased. Anti-sinter shrinkage.

With the development of technology, the demand for high-performance powder metallurgy iron bases is getting higher and higher, and the density of powder density must be increased. This places higher requirements on forming technology, and develops temperature and pressure, high-speed compaction technology, and components. The density can reach 7.2-7.4.

In order to further improve the mechanical properties of powder metallurgy parts, it is also necessary to improve the compactness, which must be considered from the powder, the milling technology of powder pretreatment technology has become the focus, now the quality of water atomized iron powder, plasticized powder processing, density can be Up to 7.5, which is the highest level of modern powder metallurgy parts, unthinkable 10 years ago.


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