Plastics | Injection Stretch Blow Molding
PET Bottles Production
The injection blow process is very common for the production of PET bottles. A PET preform (injection molded part) will be heated and pressed into a form by compressed air. To control the preform temperature at different spots, fast punctual measuring pyrometers (response time 6 ms) or the fast thermal imager (frequency 100 Hz) are recommended.
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More InformationFor the manufacturing of PET bottles, the stretch blow molding or injection blow molding processes are used, whereby the preforms are heated until viscous. The heated forms are then fully formed in a blow mold using a stretching process. Before being transported further the bottle is cooled inside a die. Depending on the texture of the preform and the desired end product, the preform needs to be brought up to a process temperature of 100 °C. Optris PI cameras are used to monitor this process.
Process temperature: up to 150 °C
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