Polishing Treatment for Plastic Molds
Polishing Treatment for Plastic Molds With the widespread application of plastic products, such as daily-use items and beverage packaging containers, there is often a requirement
In the mold design process of plastic injection molding, it is necessary to know the molding shrinkage rate. It reflects the molding shrinkage, cavity surface temperature, and injection molding pressure of several major thermoplastics.
The main runner is the first place where the plastic melt passes to the injection mold cavity. It introduces the plastic melt from the nozzle of the injection molding machine into the runner or injection mold cavity. Its shape is conical, which facilitates the smooth flow of the melt forward.
When the mold is opened, the sprue aggregate can be pulled out smoothly. The size of the sprue directly affects the flow rate of the plastic melt and the filling time. Because the sprue has to repeatedly contact and collide with the high-temperature plastic and the injection molding machine nozzle. It is usually not directly opened on the fixed mold. Instead, it is separately designed as a main runner sleeve and inserted into the fixed mold.
The sprue sleeve is usually made of high carbon tool steel.
Polishing Treatment for Plastic Molds With the widespread application of plastic products, such as daily-use items and beverage packaging containers, there is often a requirement
Injection Molding Techniques for TPE and TPR Injection Molding Techniques for TPE and TPR 1. Dry the TPE and TPR material before injection molding It
Winter Maintenance Measures for Injection Molding Machines As winter approaches and temperatures gradually drop, a cold chill envelops the earth. While ensuring personal warmth, it
Assessment Regulations for Mold Trial Exceeding 3 Times Assessment Regulations for Mold Trial 1. Purpose The purpose of this regulation is to standardize the work of