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thermoplastic extrusion pump molding method

There are many plastic molding methods, the following list of six major molding methods

1, injection molding, also known as injection molding.

2, extrusion molding, also known as extrusion molding. Is one of the main molding of thermoplastic

3, hollow molding, also known as blow molding

4, compression molding, also known as compression molding. The upper and lower mold installed in the press between the upper and lower templates, the plastic raw materials directly into the cavity, the mold closed, plastic compression under the pressure filled cavity, curing stereotypes after the plastic Parts.

5, pressure molding, also known as transfer molding. Thermosetting plastic is also one of the main molding methods.It is the plastic pellets into the mold feeding room, in the heating, under pressure melting plastic through the mold feeding chamber at the bottom of the pouring system Filled cavity, and then cured

6, solid phase molding of the plastic molding at the melting temperature, there is no obvious flow in the molding process, and more for the plastic sheet of secondary molding processing, such as vacuum forming, compressed air molding and pressure molding, the original used for thin-walled system Pieces, first used in the manufacture of thick-walled parts.

7, other forming calendering molding, casting molding, rotational molding, foam molding and so on

6. Extrusion. Extrusion molding, also known as extrusion molding or extrusion, it is in the extruder by heating, pressure and make the material flow through the continuous molding method through the die.

Thermoplastic extrusion pump extrusion is mainly used for the molding of thermoplastic, can also be used for some thermosetting plastics. Extruded products are continuous profiles, such as tubes, rods, wires, plates, films, wire and cable coating. In addition, can also be used for plastic mixing, plastic granulation, coloring, blending and so on.

Thermoplastic extrusion pumps (single screw and multi screw) and plunger type. The former extrusion process is continuous, the latter is intermittent.


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