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March 14, 2022
Features of blow molding machine
Blow molding machine is a kind of equipment that makes plastic granules into hollow containers through blow molding process. The more common models include hollow extrusion blowers that use PP and PE for one molding, and PET, PC or PP for two moldings. Injection stretch blow molding machines, as well as the newly developed multi-layer hollow extrusion blow molding and stretch blow molding.
Most blow molding machines are still two-step blow molding machines, that is, plastic raw materials must be made into preforms before blowing. Nowadays, environmentally friendly plastics made of PET are commonly used. Blow molding machine: After the liquid plastic is sprayed out, the wind blowing from the machine is used to blow the plastic body to a certain shape of the mold cavity to make a product. This machine is called a blow molding machine. It is also a type of blow molding machine, that is, a hydraulic blow molding machine.
The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in a split mold while it is hot (or heated to a softened state), and compressed air is introduced into the parison immediately after closing the mold to blow the plastic parison. It expands and sticks to the inner wall of the mold, and after cooling and demoulding, various hollow products are obtained .
Plastic hollow containers are widely used in beverage, pharmaceutical, cosmetic, food and chemical industries because of their light weight, low price and high safety. More manufacturers choose plastic containers instead of glass containers. The most advanced equipment, molds and raw materials in the plastics industry are all displayed in front of them one by one. New technologies and new applications are emerging one after another. The field of plastic hollow molding is also fruitful. With the soaring global oil price, the price of plastic raw materials remains high, and the development of alternative products with low energy consumption and low raw material consumption is also one of the market trends.
Oil-free airbag clamping technology is adopted, the clamping force is large, and the toggle operation is less stressed and the service life is long. ·Adopt the patented technology of fly-out seal, which makes it easier to seal, especially for jars.
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