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2. 发明专利

JP2004017085A Method for forming mold 有权
标题翻译：形成模具的方法
公开(公告)号：JP2004017085A
公开(公告)日：2004-01-22
申请号：JP2002174886
申请日：2002-06-14
申请人： Asahi Organic Chem Ind Co Ltd , Toshiko Metal Co Ltd , トシコ鋳工株式会社 , 旭有機材工業株式会社
发明人： UMIKAWA YOSHIHISA , KAKINUMA GORO , TORII HIROYUKI
IPC分类号： B22C1/14 , B22C1/02 , B22C1/22 , B22C7/00 , B22C9/10
摘要： PROBLEM TO BE SOLVED: To provide a method for forming a mold (core) using a forming pattern of foamed polystyrene as a substitute of a wooden pattern and a resin pattern.
SOLUTION: After forming the mold by embedding the polystyrene-made pattern into a normal temperature self-curing kneaded sand obtained by kneading molding sand, an organic solvent consisting essentially of phenol resin, a polyisocyanate compound and an aliphatic carboxilic acid ester and as necessary, hardening accelerator, hardening retardant and other additives, the pattern is taken out. In another embodiment, after forming the mold by filling the normal temperature self-curing kneaded sand obtained by kneading the molding sand and the organic solvent consisting essentially of the phenol resin, the polyisocyanate compound, the aliphatic carboxilic acid ester and as necessary, the hardening accelerator, hardening retardant and the other additives, into a foamed polystyrene-made forming pattern, the mold is taken out of the inner part of the forming pattern.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种使用发泡聚苯乙烯的形成图案作为木图案和树脂图案的替代物来形成模具（芯）的方法。解决方案：通过将聚苯乙烯制成的图案嵌入到通过捏合型砂获得的常温自固化混炼砂中形成模具之后，基本上由酚醛树脂，多异氰酸酯化合物和脂族羧酸酯组成的有机溶剂和根据需要，硬化促进剂，硬化剂等添加剂，取出图案。在另一个实施方案中，在通过填充通过捏合型砂获得的常温自固化混炼砂和基本上由酚醛树脂，多异氰酸酯化合物，脂族羧酸酯和根据需要组成的有机溶剂形成模具之后，促进剂，硬化阻燃剂和其他添加剂，形成发泡聚苯乙烯制成的成型图案，将模具从成形图案的内部部分取出。版权所有（C）2004，JPO

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