POM has low degree of polymerization and is easy to depolymerize when heated. POM has small molecular weight and low viscosity, which ensures that as few binders as possible can meet the injection molding conditions.

PIM includes MIM, so MIM binders must meet the same requirements of PIM. In addition, binders for MIM needs to meet other conditions, such as rusting.

The important advantage of chemical polishing is that it does not need complicated equipment, but can polish complex workpieces and can polish many parts at the same time with high efficiency.

Mechanical polishing for MIM parts advantage is that the processed parts have good levelness and high brightness. The defect is that the labor intensity is high; the pollution is high; complex parts cannot be processed and their gloss cannot be consistent.

Relaxation of residual stress in injection moulding results in distortion and distortion of plastic parts.

The surface of plastic parts miss the correct cooling time.

(1) Material is contaminated. (2) The content of water and volatile matter is high. (3) Decomposition of colorants and additives

Screw speed, temperature of barrel and nozzle, machine pressure ect would inflent MIM parts surface.

The size of nozzle hole, main channel and diversion channel is too small

Equipment is the very fact for influencing MIM parts color.

The success of this new manufacturing process is based on the fact that other processes cannot solve the problem of material and mass production. There is no alternative to mu-MIM.

Because of its unique ability, it can make a part with different material properties without any assembly work. Therefore, 2C-MIM process will certainly expand MIM application market.

In addition, compared with plastic micro injection moulding, the bimetal production process developed by mu-MIM enables two different metal materials to be joined together (bimetal co-injection) during the injection moulding process. Today, Shandong No2 Machinery Factory briefly introduces the current situation of these two processes.

The new MIM industry needs a series of efforts, such as formulating industrial standards, speeding up industrialization, improving the quality of employees, developing equipment and getting more customized parts.

Nowadays, spare parts of MIM process could be mainly used and assembled to electric items like camera and rotation shaft in Notebook PC & tablet PC.

Parts Designers can redesign new parts with new ideas include how to reduce weight, combine multiple parts into one parts, how to achieve functional features.

To use PIM or PM pressing depends on different products and requirements. PIM have higher precision and strength, but PM pressing has price advantage. How to choose them? Welcome to ask us.