China PVC injection molding service, Sino Molding is China PVC injection molding service supplier, offer high quality China PVC injection molding service.

Sino Molding is famous China PVC injection molding service company, we supply many kinds of injection molding service.

PVC is thermal sensitivity material, the injection molding machine technology is not very well. The reason is too high melting temperature or too long heat time easily decompose the PVC, so control melting temperature is the key of injection molding PVC products.

The heat source of melting the PVC material is come from two aspects, one is made by screw movement, the other is resistance wire of barrel outer wall. Because the thermal conductivity of PVC is poor, so in the heating process, the outer materials have been heated, but the inner materials also in condensation condition.

Even the outer materials have decomposed, the inner materials maybe haven’t melted. So for all these reasons, we should pay full attention on the product design, mold design and injection molding technology, especially select and use PVC special injection molding machine of excellent manufacturer to manufacture perfect products.

Posted by Nancy

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