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Blow Molding Machine
Jun 12, 2017

After the liquid plastic is sprayed out, the wind blowing out of the machine, the plastic body is blown to a certain shape of the mold cavity, thus making products, this machine is called blow molding machine. Plastic in the screw extruder was melted and quantitative extrusion, and then through the mouth film molding, and then a wind-ring air cooling, and then traction machine at a certain speed traction, winding machine will be coiled into a coil.

Blow Molding (blow Moulding) also known as Hollow blow molding, a rapid development of plastic processing methods. A tubular plastic parison obtained by extrusion or injection molding. Hot (or heating to the softening state), placed in the mold, closed die immediately after the compressed air inside the parison, so that plastic parison blown up and close to the mold wall, by cooling demoulding, that is, a variety of hollow products. The manufacturing process of blown film is very similar to that of hollow product, but it does not use mould, from the angle of classification of plastic processing technology, the molding process of blown-plastic film is usually included in extrusion. Blow moulding process during World War II, the production of low-density polyethylene vials was started. In the late 50, with the birth of high-density polyethylene and the development of blow molding machine, blow molding technology has been widely used. The volume of hollow container can reach thousands of liters, and some production has been controlled by computer. Suitable for blow molding plastics have polyethylene, polyvinyl chloride, polypropylene, polyester, etc., the empty containers are widely used as industrial packaging containers.


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