Large returnable container, method and apparatus for molding the same, and blow mold with separate heating zones
    2.
    发明授权
    Large returnable container, method and apparatus for molding the same, and blow mold with separate heating zones 有权
    大型可回收容器,其成型方法和装置,以及具有单独加热区域的吹塑模具

    公开(公告)号:US09475243B2

    公开(公告)日:2016-10-25

    申请号:US14202955

    申请日:2014-03-10

    Abstract: An embodiment of a method of molding a large returnable container includes a heat treatment step for subjecting a thick preform formed of a polyester resin or a primary blow-molded article to intermediate blow molding with heating to obtain an intermediate molded article, and a final blow molding step that includes subjecting the intermediate molded article that has shrunk to final blow molding with heating to obtain a large returnable container. The heat treatment step includes disposing the preform or the primary blow-molded article in a heat treatment mold, and pressurizing the preform or the primary blow-molded article so that a shoulder and a body obtained by blow molding close contact to a cavity surface of the heat treatment mold, and are subjected to a heat treatment, the shoulder being heated at a low temperature as compared with the body.

    Abstract translation: 成型大型可回收容器的方法的一个实施例包括热处理步骤,用于对由聚酯树脂或一次吹塑制品形成的厚的预型坯进行中间吹塑以加热中间成型制品,并且最终吹制 模制步骤包括使已经收缩的中间模制品经加热最终吹塑成型,以获得大的可回收容器。 热处理步骤包括将预成型件或一次吹塑制品设置在热处理模具中,并对预制件或一次吹塑制品加压,使得通过吹塑成型获得的肩部和主体紧密接触到腔体表面 热处理模具,并进行热处理,肩部与身体相比在低温下被加热。

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