发明名称 Injection molding method, has temperature of ring around first mold section regulated in order to control distance of gap between ring and mold section
摘要 During heating of the first mold section (2) to the working temperature, the temperature of the ring (5) around it is regulated so that the gap (6) between these two components is greater than or equal to the minimum axial distance needed to move these components apart, and is less than the through-flow distance required for plastic to be able to be injected into the mold cavity (4). A method for regulating the temperature of a ring extending around a first disc-shaped mold section, this ring and mold section being movable relative to each other in an axial direction. The first mold section lies opposite a second mold section (3) and they can combine to form a sealed mold cavity, into which plastic can be injected to form a product which is removed after the mold is opened. During heating of the first mold section to the working temperature, the ring temperature is regulated so that the ring-shaped gap between the ring and first mold section is greater than or equal to the minimum axial distance needed to move the ring and first mold section apart, and is less than the through-flow distance required for liquid plastic to be able to be injected into the mold cavity during injection-molding.
申请公布号 NL1016726(C2) 申请公布日期 2002.05.31
申请号 NL20001016726 申请日期 2000.11.29
申请人 OTB GROUP B.V. 发明人 LARS GUSTAF MAGNUS BERING;LEO WILHELMUS CASPERS
分类号 B29C45/26;(IPC1-7):B29C45/73 主分类号 B29C45/26
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