2016年6月6日星期一

Can POM (Polyoxymethylene) for MIM Powder Metallurgy?


Do you know that MIM can make machine spare parts production? Maybe you know, or maybe not. But you may more familiar with plastic injection. So this chapter is to introduce the characters for POM materials used in plastic injection molding.

Good comprehensive performance; its tensile strength, impact toughness, rigidity, fatigue strength and creep resistance are all quite high. Good stability, good water absorptivity, small friction coefficient,  good resistance to chemicals; its performance no less than nylon.  POM can be used for bearings, gears, CAM, valves, pipes, nut, pump impeller, chassis, carburetor, dashboard widgets, containers, bar and various copper-instead parts for mist arrester.
Poor thermal stability, easy to burn; long-term exposure in the atmosphere will be aging.

Decomposition temperature is 240 degrees. But if kept in 200 degrees for more than 30 minutes, it will decompose immediately with stimulating and corrosive gas.

Die temperature had a great effect on the quality of plastic parts. Improving  die temperature can improve product surface dents and is helpful for material’s   fluidity.

If you also would like to know MIM metal injection molding process, you can go to website:  www.zcmim.com.A Chinese metal injection molding supplier with more than 8 years experience can offer you  professional advice and best solutions

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