What is the function of injection mold’s gate
The function of injection mold’s gate as follows:
A. control material flow speed
B. During the injection, the molten material stored in this part can be prevented from backflow due to early coagulation
C. Make the molten material passing through subject to strong shear and increase the temperature, thereby reducing the apparent viscosity and improving the fluidity
D. Facilitate the separation of products from the runner system.The shape, size and location of the gate depend on the nature of the plastic and the size and structure of the product.In general, the cross-section shape of the gate is rectangular or round, and the cross-section area should be small and the length should be short, which is not only based on the above effect, but also because it is easier for the small gate to become large, while the large gate to become small is difficult.Gate locations should generally be where wip is thickest without affecting appearance.The design of gate dimensions should take into account the properties of plastic melts.The cavity is the space in the mold for forming plastic products.Components used to form cavities are collectively referred to as molded parts.Each molding part often has a special name.Forming parts to form the shape of products called concave mold (also known as the negative mold), forming the internal shape of products
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