Advantages of injection blow molding in China
As far as the current situation is concerned, the development of the plastic mold industry indicates that the diffusion rate of relevant knowledge in the industry will become increasingly light. 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 mold mould, there is a certain orientation effect in the circumferential direction.In addition, the temperature of the billet is lower than that of the extrusion blow, and the orientation effect produced by the blow blow can be more retained, which helps to improve the strength and other properties of the container.
(2) high precision of container size (especially the size of neck thread) : it is easier to guarantee the uniformity of container wall thickness and uniform container size according to requirements.
(3) no joint seams are formed on the container, and no dressing is required, and no leftover material is generally 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) it is more suitable for rigid plastic containers and wide-mouth containers.
(6) the vessel has a high gloss, and the container formed with transparent polymer is always transparent.