China's plastic mold industry development advantages of the summary
In view of the current situation, the development of the plastic mold industry indicates that the diffusion rate of relevant knowledge in the industry will become more and more smooth. The following knowledge points are the advantages of mold injection and blow molding:
(1) when the melt is injected into the mold cavity of the billet, it will receive certain orientation effect in the circumferential direction.In addition, the temperature of the billet is lower than that of the extrusion blow molding, and the orientation effect produced by the blow molding can be preserved more frequently, which helps to improve the strength of the container and other properties.
China's plastic mold industry development advantages of the summary
(2) high precision of container size (especially the size of neck thread) : it is easier to ensure the uniformity of vessel wall thickness as required, and the container size is uniform.
(3) no joint joints are formed on the container, no dressing is required, and generally no corner material is produced (usually 5% ~ 30% of the corner material produced by extrusion blow molding).
(4) sliding bottom module can be set on the blow mold, so the design flexibility of the bottom shape of the container is greater.
(5) it is more suitable for forming rigid plastic containers and wide-mouthed containers.
(6) the vessel has a high gloss, and the container formed by transparent polymer is always transparent.