In the injection molding plant in the injection of new technology often have a lot, and in the injection molding processing of the reasons for the weld, plastic products, the weld is the injection process from different directions of the molten resin in the junction can not be fully integrated and produced. Plastic mold production of plastic injection process due to the two resin flow at the fusion will not be mixed with each other; therefore, the lower the temperature, the more obvious the fusion marks, and the strength will be reduced. On the contrary, the higher the temperature, the adhesion will be enhanced. The bonding condition at the fusion point also depends on the pressure applied thereto. The lower the production pressure of plastic mold production, the worse the fusion, the lower the strength. The fusion is the confluence of the resin, and it may also be the flow tip of the flow tip, and if the gas is not provided in the position of the weld, it is possible to deteriorate the appearance and strength of the fusion.
Improvements:
L) plastic mold production to improve the resin temperature, improve the mold temperature, increase the injection pressure and speed;
2) Note that the exhaust of the parting surface increases the insert at the point where the weld is generated. The thimble is also ventilated.
3) choose a reasonable position into the plastic, plastic products before the mold is best to do mold flow analysis;
4) increase the process of waste material discharge material, forming and then cut off to be removed.
5) as much as possible to shorten the runner system to improve the go glue;
6) Matte products can try to choose coarse lines, which also help to improve the weld marks.