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Is hollow blow molding the same as blow molding?

Views: 9     Author: HUAN Machinery     Publish Time: 26-09-2022      Origin: HUAN Machinery

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Is hollow blow molding the same as blow molding?

Hollow blow molding processing and blow molding is the same? Some customers in just understand the blow molding processing industry when suddenly heard hollow molding, extrusion molding, blow molding, injection molding began to distinguish, what are the differences.

I Principle

The principle of blow molding, blow molding you choose which is to extrude the molten thermoplastic raw material squeezed into the mold, and then blow air into the raw material, the molten raw material expands under the action of air pressure, fits to the mold cavity wall, and finally cools and solidify into the required product shape.

The principle of hollow molding, hollow blow molding process will be extrusion or injection molding semi-molten billet placed in a variety of shapes of the mold when the summary, in the billet through the compressed air to blow it, make it close to the mold cavity wall, and then after cooling demoulding to get a hollow product method.

die head

II Characteristics

The blow molding equipment is simple and occupies a small area. The die head of the blow molding machine is chrome plated. The screw mandrel structure makes the unloading more equal and smooth, and better completes the blow molding film. The complex structure of the film blowing machine makes the output gas more uniform. Lifting unit adopts square frame platform structure, lifting frame height can be automatically adjustable according to different technical needs.

In the production process of hollow forming machine, the medium embryo is formed by the head. Generally, two molds are required to blow under relatively low pressure. Therefore, the products produced have high tensile, bending, impact and other strain resistance, and have good service life.

Principle and characteristics of everyone see what is the difference between hollow molding and blow molding equipment? In fact, hollow molding and blow molding are really the same thing, hollow molding includes blow molding, extrusion molding, injection molding is that kind of process, there are only slight differences in principle.

die head extrusion blow molding

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