How is powder metallurgy done? Look at the production process!

How is powder metallurgy done? Look at the production process!

Powder metallurgy has unique chemical composition and mechanical and physical properties, which can not be obtained by traditional melting and casting methods. Powder metallurgy technology can be used to directly produce porous, semi dense or fully dense materials and products, such as oil-bearing bearings, gears, cams, guide rods, tools, etc. It is a kind of less or no cutting technology. Do you know how to do powder metallurgy? The production process of powder metallurgy is introduced in the following:

powder metallurgy

1. There are two kinds of pulverizing methods: mechanical method and physical chemical method. However, the mechanical method can be divided into: mechanical pulverization and atomization; Physical methods can be divided into reduction method, atomization method and electrolysis method.

2. Powder metallurgy is formed into billets under certain conditions. The purpose of forming is to make the required shape and size of compact. The forming methods are divided into pressure forming and non pressure forming.

3. Sintering is a very important step in powder metallurgy process. Sintering can be divided into unit system sintering and multi-element system sintering. Solid phase sintering of unit system and multicomponent system has lower sintering temperature and melting point; In addition, there are some special sintering processes, such as loose sintering, melt leaching and hot pressing.

4. The products after sintering can be treated in various ways according to requirements. Forging can also be applied to the processing of sintered powder metallurgy materials.

Powder metallurgy technology not only has the advantages of less conventional powder metallurgy process, no cutting or less cutting, and high economic benefits, but also overcomes the shortcomings of traditional powder metallurgy process products, uneven materials, low mechanical properties, difficult to form thin walls, and complex structures. It is particularly suitable for mass production of small, complex, and special requirements of powder metallurgy parts.

Through the above introduction, we believe that you have roughly understood the production process of powder metallurgy. Powder metallurgy is a technology for metal forming process by heating and compacting metal powder to below its melting point, and it is the main manufacturing method of special high-performance materials such as high alloy, difficult to process, and refractory metals. It has played an important role in modern manufacturing and national defense fields, especially in the automotive field. The localization of automotive parts has led to rapid growth of the powder metallurgy industry.