What are the four methods commonly used in the production of plastic products?


 1. Extrusion molding: It is also called extrusion mold […]

 1. Extrusion molding: It is also called extrusion molding in plastic processing. In the processing of non-rubber extruders, it is extruded by hydraulic pressure on the mold itself. It refers to a processing method in which materials pass through the action between the barrel and screw of the extruder, while being plasticized by heat, being pushed forward by the screw, and continuously passing through the head to make various cross-section products or semi-products.

  2, injection molding: also known as injection molding, it is a molding method of injection and molding. The advantages of injection molding method are fast production speed, high efficiency, operation can be automated, variety of designs and colors, shapes can be from simple to complex, sizes can be from large to small, and the product size is accurate, the product is easy to update, and it can be made into complex shapes. Parts and injection molding are suitable for mass production and molding processing fields such as products with complex shapes.

3. Slush molding: The method is to pour the paste plastic (plastic sol) into a mold (concave mold or female mold) that is preheated to a certain temperature. The paste plastic near the inner wall of the cavity will be gelled due to heating, and then Pour out the non-gelled plastic paste, heat the plastic paste attached to the inner wall of the mold cavity (bake and melt), and then cool down to obtain a hollow product from the mold.More about:QM factory direct sale11cm wave shape plastic bread bag clip plastic food bag seal clip

4. Blow molding: mainly refers to hollow blow molding (also known as blow molding), which is a method of inflating a hot melt parison closed in a mold to form a hollow product by means of gas pressure. It is the third commonly used plastic processing The method is also a fast-developing plastic molding method. The mold used for blow molding is only a female mold (concave mold). Compared with injection molding, the equipment has a lower cost, stronger adaptability, good moldability (such as low stress), and can mold products with complex undulating curves (shapes). 

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