For plastic machines, the initial stage of control for injection molding manufacturers is generally speed control. In other words, the plastic machine actively compensates for a series of variables to ensure that the filling speed is consistent at the beginning. The greater the viscosity of the plastic, the harder it is to push it, and the greater the filling pressure required to achieve the same speed. On the contrary, if the viscosity of the plastic is smaller, it means that the plastic is easier to be pushed, and the filling pressure required to reach the same speed is smaller

General principles for design of injection molded parts manufactured by injection molding manufacturers:

a. Fully consider the molding process of plastic parts, such as flowability:

b. On the premise of ensuring the use requirements, the shape of plastic parts should be conducive to mold filling, exhaust, feeding, and can adapt to efficient refrigeration hardening

c. The plastic design should pay attention to the overall structure of the molding die, especially the core pulling and the complexity of the product. At the same time, the form and manufacturing process of die parts should be fully considered to make the products more economical

d. The main content of plastic part design is the shape, specification, thickness, hole, arc, reinforcement, thread, insert and surface roughness of the part