Warm Global Customers
With China Plastic Machinery
With China Plastic Machinery
Blow molding, also known as blow molding, is a rapidly developing plastic processing method. According to the method of making the parison, blow molding can be divided into extrusion blow molding and injection blow molding. Newly developed ones include multi-layer blow molding and stretch blow molding. 3/4 of blow molded products are made by extrusion blow molding.
Blow molding
Blow molding
Blow molding, also known as blow molding, is a rapidly developing plastic processing method. The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in a split mold while hot (or heated to a softened state). After closing the mold, compressed air is immediately introduced into the parison to inflate the plastic parison and cling to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.
The manufacturing process of blown film is very similar to that of hollow product blow molding in principle, but it does not use molds. From the perspective of plastic processing technology classification, the molding process of blown film is usually included in extrusion. Plastics suitable for blow molding include polyethylene, polyvinyl chloride, polypropylene, polyester, etc., and the resulting hollow containers are widely used as industrial packaging containers.
According to the method of making the parison, blow molding can be divided into extrusion blow molding and injection blow molding, and the newly developed ones are multi-layer blow molding and stretch blow molding.
Extrusion blow molding
3/4 of blow molded products are made by extrusion blow molding. The extrusion process is to force the material through a hole or mold to make the product. The widely made blow molding objects are bottles, barrels, cans, boxes and all containers for packaging food, beverages, cosmetics, medicines and daily necessities. Large blow-molded containers are usually used for packaging chemical products, lubricants and bulk materials. Other blow-molded products include balls, bellows and toys. For the automotive industry, fuel tanks, car shock absorbers, seat backs, center brackets, and armrest and headrest coverings are all blow molded. For the machinery and furniture manufacturing industries, blow-molded parts include shells, door frames, racks, pottery pots or boxes with an open face.
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