Plastic Extruder Molding Principle

The extrusion method of a plastic extruder generally refers to melting the plastic at a high temperature of about 200 degrees, and the melted plastic forms the required shape when it passes through the mold. Extrusion molding requires a deep understanding of plastic properties and rich experience in mold design. It is a molding method with high technical requirements.
Extrusion molding is a method in which materials are continuously passed through a die in a flowing state through heating and pressure in an extruder. It is also called "extrusion molding". Compared with other molding methods, it has the advantages of high efficiency and low unit cost.
The extrusion method is mainly used for the molding of thermoplastics and can also be used for some thermosetting plastics. The extruded products are continuous profiles, such as tubes, rods, wires, plates, films, wire and cable coatings, etc. In addition, it can also be used for mixing, plasticizing and granulating, coloring, blending, etc. of plastics.
The extruded products can be called "profiles". Since most of the cross-sectional shapes are irregular, they are also called "special profiles".