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1.发明授权Method of molding plastic and injection compression molding apparatus using the method 失效使用该方法成型塑料和注射压缩成型设备的方法
公开(公告)号：EP0272138B1
公开(公告)日：1991-04-17
申请号：EP87311184.3
申请日：1987-12-18
发明人： Tamura, Toru , Sunohara, Masaaki , Ito, Akio , Nakatani, Yoshio
CPC分类号： B29C45/64 , B29C45/561
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2.发明公开Method of molding plastic and injection compression molding apparatus using the method 失效Verfahren zum Verarbeiten von Kunststoff und Spritzgusspresse zur Anwendung des Verfahrens。
公开(公告)号：EP0272138A1
公开(公告)日：1988-06-22
申请号：EP87311184.3
申请日：1987-12-18
发明人： Tamura, Toru , Sunohara, Masaaki , Ito, Akio , Nakatani, Yoshio
CPC分类号： B29C45/64 , B29C45/561
摘要： A method of molding a plastic is initiated by injecting molten resin into a mold at a high pressure. The energy of the high pressure is partially stored in the form of elongation of tie bars of a molding machine. After the gate seals completely, the restoring force of the tie bars due to elastic deformation acts on the molded article as the molded article cools down. Each tie bar comprises a first member having a small modulus of elasticity and a second member. When the elongation of each tie bar is small, only the first member of small modulus of elasticity works. After the elongation reaches a certain amount of Δℓ₁, the two members are connected parallel. As a result, the apparent modulus of elasticity of each tie bar increases rapidly. This makes it possible to mold a plastic with high dimensional accuracy.
摘要翻译： 通过将熔融树脂以高压注入模具中来开始塑造塑料的方法。 高压的能量部分地以成型机的连杆的伸长的形式存储。 门完全密封后，随着模制品的冷却，由于弹性变形引起的拉杆的恢复力作用在模制品上。 每个连接杆包括具有小的弹性模量的第一构件和第二构件。 当每个连杆的伸长率小时，只有弹性小的第一部件工作。 伸长达到一定量的DELTA11后，两个构件平行连接。 结果，每个连接杆的表观弹性模量快速增加。 这使得可以以高尺寸精度模制塑料。
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