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Qingdao Suntop Automatic Plastic Barrel Drum Making Blow Moudling Machine

Qingdao Suntop Automatic Plastic Barrel Drum Making Blow Moudling Machine

Compared with the injection mold, the extrusion blow molding has the following characteristics: 1.the blow moulds are usually only moulds; 2.Blow molding pressure of mold cavity is small, generally 0.2 ~ 1.0MPa;

Qingdao Suntop Automatic Plastic Barrel Drum Making Blow Moudling Machine

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Compared with the injection mold, the extrusion blow molding has the following characteristics:

1.the blow moulds are usually only moulds;

2.Blow molding pressure of mold cavity is small, generally 0.2 ~ 1.0MPa;

3.The blow with general cavity without hardening treatment, unless required long-term production;

4.Blow molding cavity, the parison is formed by expansion, which can reduce the flow marks and the wear of the die and die.

5.Because there are usually no male dies, the deeper depressions on blow molded products can also be demoulding (especially for low hardness plastics), and generally do not require sliding inserts.

The main requirements for the blow molding die are as follows:

1.formable products with complex shapes;

2.It can effectively clamp the parison and ensure the strength of the product joint.

3.Can effectively exhaust gas;

4.It can quickly and evenly cool the products and reduce the temperature gradient in the mold wall to reduce the molding time and warpage.

The requirements of the blowing mold to the material are low, and the selection of the wide selection of blow molding die materials should take into account the factors such as thermal conductivity, strength, wear resistance, corrosion resistance, polishing performance, cost, and the plastic and production quantity used.

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