So it is the tiniest part of the entire athlete system.Gate size design should take into account the nature of the plastic-type melt. The location of the gate should generally be chosen the place that the product is thickest without impacting on the appearance.

Cavity It is the space for molding plastic products in the mold. This is simply not only based on the above-mentioned impact, but also because the small gate becomes larger and simpler, and the large gate is difficult to relieve. The shape and size from the gate have a great influence on the quality of the product. Generally, the shape on the cross section of the gate is rectangular or circular, as well as the cross-sectional area should be small plus the length should be short. The design of the gate shape, size, and location is dependent upon the nature of the cheap, the size and structure with the article.

The role in the gate is: control the circulation rate: In the injection, the early flow of the melt in this part might be prevented to prevent backward stream: The molten material passing through is put through strong shearing to increase the actual temperature, thereby lowering the apparent viscosity to raise the fluidity:

D, to facilitate the separation of products and also runner system. The cross-sectional area with the channel can be equal towards the main channel (or runner), but it is usually reduced. The components that make up the cavity are collectively called molded parts.It truly is the channel connecting the main channel (or runner) and the cavity.