Injection moulding is a manufacturing method of an automatic moulding machine that manufactures parts by injecting materials into a mould. The first method of processing plastics is injection moulding. In this process, the plastic is placed in the hopper, which then injects the plastic heat through a long chamber and a reciprocating screw. Later, it is softened into a fluid condition. The nozzle is located at the end of the chamber, and the fluid plastic is forced to cool through the nozzle to close the die. When the plastic is cooled and cured, the semi-finished product withdraws from the press.

Plastic kneading is a method of mass production in which plastic raw materials are melted to form a continuous summary. Extrusion processes are generally used to manufacture films, continuous sheets, tubes, profiles, bars, coated wires, filaments, wires, and cables. Together with the injection moulding machine, the dull plastic is placed in the hopper and fed into a long heating chamber. At the end of the chamber, the material is pressed out of a small opening, or in the desired product shape of the die. After the plastic is separated from the mould, it is placed on the conveyor belt to cool. Blowers are sometimes used in this process to help cool them.

Blow moulding is a forming method for manufacturing hollow plastic products. It is a secondary moulding technology for hollow plastic products by means of gas pressure to blow the rubber-like billet closed in the die cavity.

A special plastic processing method for processing thermoplastic sheets into various products. The sheet is clamped on the frame and heated to soften. Under the action of external force, the sheet is made close to the die surface to obtain the shape similar to that of the die surface. After cooling and setting, the finished product is ready to be repaired. This process is also used in rubber processing. In recent years, new developments have been made in thermoforming, such as continuous production technology from extrusion sheet to thermoforming.

Compression forming is a common method in thermosetting materials, which is generally not used in thermoplastics. In this process, the material is kneaded into the desired shape. Plastic moulding powder and other materials are added to the mixture to produce special quality. When the die is closed and heated, the material passes through hardening to form its desired shape. Temperature, pressure and the length of time used in the process depend on the desired effect.

Also known as calendering. What is the process of retrofitting? The plasticity of fibers under mixed heat conditions is used to flatten or roll out parallel fine skew lines to improve the picking up and finishing process of fabric gloss. The material is fed in, heated and melted, then formed into sheets or membranes, then cooled and rolled up. The common calendering material is polyvinyl chloride.

Kneading, blank in three-dimensional non-uniform compressive stress, extrusion from the hole or gap of the die to reduce the cross-sectional area and add length, become the processing method of required products called kneading, the processing of blank is called kneading.

Vacuum Forming, commonly known as plastic absorption, is a plastic processing technology. The primary principle is to use vacuum to absorb the flat plastic hard sheet on the surface of the die after heating and softening, and to form after cooling. It is widely used in plastic packaging, lighting, advertising, decoration and other operations.

Rotary moulding is also known as rotational moulding, rotational moulding, rotational casting, reverse moulding and so on. Rotary moulding process is to take plastic raw materials into the mould first, and then the mould rotates along two vertical axes and heats them continuously. Under the action of gravity and heat energy, the plastic raw materials in the mould are gradually uniformly coated and melted and adhered to the whole surface of the cavity, forming the desired shape, and then cooling, shaping and demoulding to obtain the product.