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    • 13. 发明授权
    • Method of manufacturing a foam-molded product
    • 发泡成型品的制造方法
    • US06893587B2
    • 2005-05-17
    • US10087828
    • 2002-03-05
    • Hidekazu MurakoshiShingo TamuraIchiro Matsuoka
    • Hidekazu MurakoshiShingo TamuraIchiro Matsuoka
    • B29C45/00B29C44/04B29C44/58B29C45/76B29K105/04B29C44/06
    • B29C44/0415B29C44/586
    • An improved method of manufacturing a foam-molded product is provided including the steps of: filling a resin containing a foaming agent into a mold cavity by injection within a time period from a time point just before completion of mold clamping to a time point after the completion of mold clamping; allowing the resin thus filled in the mold cavity to form a skin layer over a surface thereof; thereafter retracting a movable mold to define a predetermined cavity clearance between the movable mold and a stationary mold, so as to cause the foaming agent contained in an uncured portion of the resin to foam; and cooling the resin filled in the cavity mold to form a foam-molded product having a surface forming a tight skin layer and an inside portion in a foamed state.
    • 提供了一种制造发泡成型产品的改进方法,包括以下步骤:在从模具夹紧完成之前的时间点到在模具夹紧之后的时间点内,通过注射将包含发泡剂的树脂注入模腔中 完成模具夹紧; 使得如此填充在模腔中的树脂在其表面上形成表皮层; 然后缩回可动模具,以在活动模具和固定模具之间限定预定的空腔间隙,以使包含在树脂的未固化部分中的发泡剂发泡; 并且冷却填充在模腔中的树脂,以形成具有形成紧密表皮层的表面和发泡状态的内部的发泡成型品。