What are the processes of plastic processing?

Blister: Vacuum forming is called blister, which is a plastic processing technology. The main principle is that after heating and softening the flat plastic hard sheet, it is vacuum adsorbed on the surface of the mold, and then formed after cooling. It is mainly divided into two categories: thick sheet blister and thin sheet blister. Widely used in automotive accessories, lighting, advertising, decoration, large mechanical shells, display, air, large appliances, bathroom and other industries.

Injection Molding: Thermoplastic injection molding, a method in which the plastic material is melted and then injected into the film cavity. Once the molten plastic enters the mold, it is cooled and shaped into a cavity-like shape. Common products mainly include: computer case shell, connector, mobile phone shell, keyboard, mouse, audio and so on.

Blow molding: also known as hollow blow molding, a rapidly developing plastic processing method. The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in a split mold while it is hot (or heated to a softened state), and compressed air is introduced into the parison immediately after closing the mold to blow the plastic parison. It expands and sticks closely to the inner wall of the mold, and after cooling and demoulding, various hollow products are obtained. The plastic processing technology for bottles, barrels, cans, boxes and all containers for packaging food, beverages, cosmetics, medicines and daily necessities that are common in life is blow molding.

Extrusion: Extrusion is also called extrusion in plastic processing and extrusion in rubber processing. It refers to a processing method in which the material passes through the action between the extruder barrel and the screw, is heated and plasticized, and is pushed forward by the screw, and continuously passes through the head to make various cross-sectional products or semi-products.