Characteristics of injection molding material POM plastic

(Polyoxymethylene)

Specific gravity: 1.41-1.43 g/cm3
Mold shrinkage: 1.2-3.0%
Molding temperature: 170-200℃
Drying conditions: 80-90℃ 2 hours

Material performance

It has good overall performance, high strength and rigidity, good wear resistance, low water absorption, good dimensional stability, but poor thermal stability, easy to burn, and easy to age when exposed to the atmosphere. Suitable for making wear-reducing and wear-resistant parts, transmission parts, and chemical, instrumentation and other parts

Forming performance

1. Crystallized material, narrow melting range, fast melting and solidification, crystallization occurs when the material temperature is slightly lower than the melting temperature. Medium liquidity. It has low moisture absorption and can be processed without drying.

2. The friction coefficient is low, the elasticity is good, and the surface of the plastic part is prone to wrinkle pattern surface defects.

3. Easily decompose, the decomposition temperature is 240 degrees. Irritating and corrosive gases will occur during decomposition. Therefore, the mold steel should be made of corrosion-resistant materials.

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