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The Production Process of Plastic Bottles

2020-08-11
There are two commonly used production processes for plastic bottles:

The first is the extrusion and blowing process, that is, the plastic raw materials are added to the extruder, the molten parison is extruded by heating, melting and plasticizing, and then placed in the bottle mold for inflation molding, and after cooling and shaping, it is taken out of the mold to repair the waste edge After getting the finished product. This process is mainly used to produce polyethylene and polyvinyl chloride plastic bottles, such as milk bottles and soy sauce bottles.

The second is the injection stretch-blow process, that is, the plastic raw material is injected into a tubular parison by an injection molding machine, and then placed in a bottle mold for stretch-blow injection molding, and the finished product is obtained after cooling. This process is mainly used to produce PET plastic bottles, such as mineral water bottles,pet alcohol bottle, etc.


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