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Changshu da plastic products factory talk about PVC plastic material processing process smoothly

by:CSSSLD     2021-02-03
PVC plastic profiles are widely used in water supply pipe, household pipe, electronic product packaging, medical equipment, food packaging, etc. , is a kind of more widely used plastic material, because the PVC material has no flammability, high strength, good resistance to climate change and the geometric stability of popular, then how the processing of PVC plastic profile? Good performance? Let changshu da plastic products factory to do a detailed introduction.

PVC melting temperature during processing is a very important process parameters, if the parameters will lead to improper material decomposition problem. The flow characteristics of PVC is rather poor, its technological range is very narrow. Especially big molecular weight of PVC material is more difficult to machining, so often used is small molecular weight of PVC material. PVC shrinkage rate is low, the general is 0. 2 - — 0. 6%.

don't usually need to dry processing of PVC plastic profile. Melting temperature kept at 185 & ndash; — Between 205 ℃ and mold temperature: 20 & ndash; — 50 ℃ can, at the same time, injection pressure can be big to 1500 bar the holding pressure, can be big to 1000 bar injection speed, to avoid material degradation, general use reasonably the injection speed.
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