What are the forms of blow molding process?

Blow molding mainly refers to hollow blow molding, it is the use of gas pressure so as to close in the mold of hot melt billet blowing to form hollow products method, at the same time it is also a common method of manufacturing hollow products, and plastic products processing method but can in addition to extrusion, injection molding, molding in addition to another most commonly used method, and also develop rapidly, It belongs to the scope of secondary forming technology. So, what are the several ways of blow molding process?

1. extrusion blow molding process:

Now most of the blow molding products are produced by extrusion blow molding process, because the extrusion blow molding is divided into continuous extrusion blow molding and intermittent extrusion blow molding these two, the continuous extrusion blow molding is suitable for the rapid production of small products, and then use the extruder for continuous production of billet, and then into the turntable of the Foley mold, Finally, the closing, blowing, cooling, ejection and other operations are carried out in sequence. The intermittent extrusion blow molding is suitable for the production of large blow molding products, often used to produce high molecular weight polyethylene large containers.

2. Injection and blow molding process:

Injection blow molding is used by the billet through injection molding, because the advantages of injection blow molding is the production of products with uniform wall thickness, small weight tolerance, and less post-processing, less waste edge and so on. But the cost of injection blow molding is high, so it is often used in the production of large quantities of small fine products.

3. Stretch and blow molding process:

Tensile blowing is divided into two methods: injection blowing and extrusion blowing, the injection blowing is the use of injection molding method to make billet and then tensile blowing; Extrusion and blowing is to use extrusion method to make billet for tensile blow molding.

4. Multi-layer blow molding process:

Multilayer blow molding is the use of several plastics using the appropriate method to produce the layer composite billet, and then the blow molding process. Layer blow molding is to introduce a layer or several layers of polymer with low permeability, so as to improve the product's solvent resistance or air permeability.

Taizhou Huangyan Aisibi Plastic Machinery Co., Ltd. is specialized in the production of injection molding machines, injection blowing machines and injection blowing machines. With nearly 20 years of production history, it is a manufacturer with independent development and design of injection blowing molds and machines. The products have the characteristics of high efficiency, high speed, energy saving and low noise. According to the special requirements of customers, the original model can be modified to meet the special needs of the product, and can complete the process from the initial concept to rapid prototyping of the first plate, in order to meet the requirements of new product design. Main business: Automatic plastic injection and blowing hollow molding machine, automatic plastic injection and drawing blowing hollow molding machine. Welcome users to consult.