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Process Engineering Quality Control
PET Preform Temperature Measurement What to Measure and Record
November 5, 2026
PET Preform Temperature Measurement: What to Measure and Record Temperature is the single most critical process variable in PET reheat stretch blow moulding. A deviation of just $\pm 2^\circ\text{C}$ can shift a bottle from optimal biaxial …
Neck Finish Cooling in PET Preform Reheating
November 5, 2026
Neck-Finish Cooling in PET Preform Reheating In two-step stretch blow moulding, the preform body and the preform neck finish serve opposite functional purposes. While the body wall must be heated uniformly above its glass transition temperature to …