What kinds of pre-treatment should be done before powder metallurgy ?

Powder Metallurgy (http://www.zcmim.com/) has a unique chemical composition and mechanical, physical properties. These properties are unable to be obtained by traditional casting methods. Powder metallurgy technology can make porous, semi-dense or full dense material and products, such as oil bearing, gears, cams, guide rods, knives, etc.. It is a small no-cutting process.

Here to explain what pretreatment required by PM before forming:

1. Classification

2. remove impurities

3. Annealing

4. Ingredient

5. Mixed

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