Iron base powder metallurgy and hard alloy production technology is different?

Iron base powder metallurgy and hard alloy production process is different? Believe that there are many friends are not very understanding, let's look at the following.

Fe based powder metallurgy is the base of iron, cemented carbide base powder is TIC, WC and so on.The production process is basically the same, mixed powder - molding - sintering - after the order processing - Inspection - package, but the process parameters will not be the same.

Fe based plastic is to reach a certain size requirements or facial requirements and process. Because of iron-based products molding elastic aftereffect, general products after sintering dimension change larger. The outside diameter of the same batch, inner diameter, or height are not necessarily reach the final product requirements and design to achieve the size and height requirements through the shaping process of. Generally used for tolerance requirements are relatively tight products.

1 mix powder mainly and powder size, size and shape and so on. There is the alloy element and lubricant and binder.

2 molding is the press tonnage, mold design, there are other related.

3 sintering is the sintering temperature, and sintering atmosphere or sintering time and other related parameters.

4 then there are some post processing. Machining, heat treatment, etc. (quenching, tempering, etc.), the surface carburizing.