The advantages of the development of plastic mold industry in China.
As far as the current situation is concerned, the development of plastic mold industry indicates that the diffusion rate of relevant knowledge in the industry will become more and more light. The knowledge points introduced below are the advantages of mold injection molding:
(1) when the melt is injected into the mold cavity, it is subjected to a certain orientation effect during the week.In addition, the temperature of billet blowing is lower than that of extrusion blow molding, and the orientation effect of blowing expansion can be retained more, which can help to improve the strength of the container.
The advantages of the development of plastic mold industry in China.
(2) the size of the container (especially the size of the neck thread) is high: it is easier to ensure the uniformity of the wall thickness of the container, and the container specification is uniform.
(3) no joint seam is formed on the container, no modification is required, and the edge material is not normally produced (the leftover material produced by extrusion blow molding is usually 5% ~ 30%).
(4) the sliding bottom module can be set on the blow mold, so the design of the bottom shape of the container is more flexible.
(5) more suitable for forming hard plastic containers and wide-mouth containers.
(6) the container has a high gloss, and the containers made of transparent polymer are always transparent.