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Plastic extruder molding principle


The extrusion method of the plastic extruder generally refers to melting the plastic at a high temperature of about 200 degrees, and the melted plastic passes through the mold to form the desired shape. 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 formed through a die in a flowing state by heating and pressurizing in an extruder, also known as "extrusion". 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. 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, granulating, coloring, and blending of plastics.

The extruded product can be called "profile", and because the cross-sectional shape is mostly irregular, it is also called "profile".

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