| 摘要 |
Method and apparatus for injection blow molding hollow articles from polyethylene terephthalate (PET) resin utilizing a hollow core rod on which a parison is first injection molded, and subsequently stretched and blown to form the hollow article. Fluid is continuously circulated through the hollow core rod to promote cooling of the plastic and insure the production of hollow articles that are transparent and of high quality from a clarity standpoint. A separate supply of blow air is provided at the blow molding station so as not to interfere with the continuous flow of coolant through the hollow core rod. |
