Where is the difficulty of powder metallurgy technology?

Powder metallurgy is now common in all kinds of industries, machinery, industry and some new development energy will also be used in powder metallurgy parts, powder metallurgy technology, forming, sintering is the basic process of powder metallurgy. Today, what is the difficulty of powder metallurgy technology?

1, the traditional powder metallurgy iron parts - gear as an example

A lot of time on the mechanical properties of the requirements is not high, on the size of the accuracy requirement is high, the general density in 6.9~7.1 is can the, the forming process requirements is not high, the sintering process requirement is high, and prevent the sintering deformation, can add Cu anti sintering shrinkage.

With the development of technology, the high-performance powder metallurgy iron-based parts demand more and more high, which must to improve the density of powder compacts, which the forming technology put forward higher requirements, the development of warm compaction, high velocity compaction technology, the density of the component can achieve 7.2-7.4.

To further improve the mechanical properties of powder metallurgy parts, also need to improve the compact density, which must be from the powder is prepared to consider, and milling technology of powder pre processing technology has become the focus, and now the quality of water atomized iron powder, the plasticized powder processing, compact density can be up to more than 7.5, which is the highest level of modern powder metallurgy parts and ten years ago is unthinkable.

2, other powder metallurgy material difficulties

Other powder metallurgy materials are the same, it can be said that the powder, forming, sintering an. Of course milling method in a hundred, forming method speak ten, sintering method are also many, the ultimate principle is to take the most economical method to meet the requirements of the premise.

Powder metallurgy technology has a significant energy saving, material saving, excellent performance, high precision and good stability, and a series of advantages, is very suitable for mass production.