A. Control flow velocity:
B. In the injection, it can be stored in this part of the melting material early to prevent backflow:
C. To increase the temperature of the molten material through the strong shear, thereby reducing the apparent viscosity to increase the liquidity:
D. Easy separation of product and runner system.The design of gate shape, size and position depends on the nature of the plastic, the size and structure of the product.The section shape of the gate is rectangular or round, and the sectional area should be small and short, which is not only based on the above effect, but also because the small gate is bigger and easier, while the large gate is very difficult to reduce.Gate position should be in the most thick and not affected appearance.