Changshu da plastic products factory to talk smoothly to avoid degradation of PVC plastic profile of three measures

Yellow PVC plastic profile is mostly to mouth mold a paste, the reason is that local port is not reasonable or mouth mould the flow passage of polishing is bad, stagnation expected area. The yellow wire and PVC plastic profile is mostly barrel in paste, the main reason is the sieve plate ( Or transition set) Have a corner, between material flow. Yellow line on the PVC a vertical straight line, is stagnation expected in the die exit mouth; If the yellow line is not straight, the main is in transition. At constant formulation and raw material also appears yellow line, should be mainly to find reasons from the mechanical structure, find a starting point to decompose and ruled out. If can't find the reason from the mechanical structure, is a formula or process problems should be taken into account. Changshu da plastic products factory to talk smoothly to avoid the degradation of PVC plastic profile of the three measures.



1, strictly control the technical index of raw materials, to use qualified raw material;



2, formulates the reasonable forming process conditions, under the condition of the PVC material is not easy to degrade,



3, molding equipment and mould should be well structured, to eliminate the equipment and material interface is possible corner or gap; Port should be streamlined, suitable length; Should improve the heating device, improve the sensitivity of temperature display device and the efficiency of the cooling system.