Delrin Injection Molding

delrin injection molding

delrin injection molding guide customized engineering convey chains molded acetal pom plastic chain. Injection molding plastic delrin deep groove v wheel  guide.

All acetals are strong, tough, and stiff with very high creep resistance, making them ideal for mechanical parts like gears and chain links. They are highly abrasion resistant (though less so than nylons or polyethylenes) and have a low coefficient of friction against metal and other plastics, making them an excellent choice for bearings, bushings, and cams. They are affected by strong acids or oxidizing agents, but otherwise have high resistance to most chemicals and low water absorption and are widely used for packaging and dispensing components. In general, they can withstand a range of temperatures, but tend to degrade when exposed to ultraviolet light.

higher flexural modulus than copolymers, i.e., are stiffer at both room temperature and elevated temperatures

• higher impact strength making them somewhat less likely to fracture on impact; the advantage over copolymers becomes more significant at extreme temperatures

• higher fatigue endurance, the ability to withstand repeated cycles of stress

• greater elongation at yield

• a continuous use temperature of 95°C vs. 90°C for copolymer

• higher porosity (there may be a porosity line present in the extruded sheet stock that Firstcut uses)

Copolymers have:

• better dimensional stability

• better resistance to basic (high pH) solutions such as bleach

• greater resistance to degradation by exposure to steam, hot water, or hot air

• lower porosity due to shrinkage in extruded shapes

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