MIM Parts FRQ

The MIM product density and strength?

The density of the typical MIM theory is higher than 98%.Specific density depends on the choice of materials, but it’s very close with sophisticated materials.

In the process of removing the adhesive, parts will shrink?

Won’t, the volume of parts will not change in the process of degreasing.But in sintering parts contraction happens in 20 ﹪.

what’s different the the MIM and conventional powder metallurgy process?

The traditional PM with one-way high pressure to press the rough metal powder into a fixed position to moderately complex manufacturing equipment.In particular, if there is no further improve its density in sintering process, the method of density values between 80-90%, this limits the them the physical properties of alloy.Because of MIM of elasticity that enables the manufacturing of complex products is not restricted.Fine metal powder combined with high temperature sintered MIM production can achieve very high density of the final product.This makes the MIM products and precision materials have similar features.

In the MIM process of forming the metal was melted?

No, only the adhesive is melted, so that the powder flow like a plastic material.Cooling adhesive parts have a certain strength.Parts after sintering at high density, in order to meet the needs of its mechanical properties.

The MIM is how to operate?

Fine metal powder made a raw material and adhesive bonding.When heated, the material will become a kind of viscous paddle-shaped substance, high pressure injection mould, then form the model need.Removing from the mold after cooling, and then processed to remove adhesive composition (called skim).The last step (sintering), put it in a controlled high temperature environment, condensed to tight when metal powder dissolved solids.