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Bubbler tube with integral inlet pipe and bimetal core for injection molding tools and method of making the bubbler tube
Bubbler tube with integral inlet pipe and bimetal core for injection molding tools and method of making the bubbler tube
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机译:具有一体式入口管和双金属芯的起泡器管,用于注射成型工具及其制造方法
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摘要
A mold assembly including moveable mold parts, one of which includes a plurality of hollow cavities. Each hollow cavity forms an outer wall of an elongated, generally annular portion of a molded part and the other mold part includes a corresponding plurality of core elements, which form an inner wall of the same portion of the molded part. Each core is disposed within a corresponding cavity to define a generally annular mold chamber portion for receiving molten material to be molded to form the shape of the portion of the molded part. Each core element includes a cooling apparatus and each cavity includes an outside cavity-cooling device. Each core element includes a first portion made of high strength material and a tip portion made of material having a greater heat diffusivity and heat transfer coefficient than said first portion.
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