Method for molding foamed resin molded article, mold, and foamed resin molded article
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United States of America
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app pub date -
Mar 15, 2017
filing date -
Mar 15, 2017
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Abstract
Provided are a method for molding a foamed resin molded article having a mounting hole which is formed with good dimensional precision without occurrence of shape sag and which has an improved load resistance, a mold therefor, and a foamed resin molded article thereby. A method for molding a foamed resin molded article 1 including a mounting section 11 and a non-mounting section 12, using a mold 3 including a first mold 31 having a non-mounting-section mold portion 31a and a mounting-section mold portion 31b, a second mold 32, and a cavity 4 having a non-mounting-section cavity portion 42 for molding the non-mounting section 12 and a mounting-section cavity portion 41 for molding the mounting section 11. The method includes: a filling step of filling a material to be molded into at least the mounting-section cavity portion 41; and a core-back step of moving at least one of the non-mounting-section mold portion 31a, the mounting-section mold portion 31b, and the second mold 32 so that a cavity width of the non-mounting-section cavity portion 42 is increased while a cavity width of the mounting-section cavity portion 41 is constant, the filling step and the core-back step being sequentially performed.
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