发明授权
US4283319A Process for preparing foundry cores or molds and binder materials used
therefor
失效
用于制备铸造芯或模具和粘合剂材料的方法
- 专利标题： Process for preparing foundry cores or molds and binder materials used therefor
- 专利标题（中）： 用于制备铸造芯或模具和粘合剂材料的方法
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申请号： US92022申请日： 1979-11-07
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公开(公告)号： US4283319A公开(公告)日： 1981-08-11
- 发明人: Susumu Konii , Shigeo Sase , Masatoshi Yoshida , Shoei Kuroda , Takeshi Sumi
- 申请人： Susumu Konii , Shigeo Sase , Masatoshi Yoshida , Shoei Kuroda , Takeshi Sumi
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi Chemical Company, Ltd.
- 当前专利权人： Hitachi Chemical Company, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX53-139733 19781113
- 主分类号： C08L61/00
- IPC分类号： C08L61/00 ; B22C1/10 ; B22C1/22 ; C08G8/04 ; C08K3/22 ; C08L61/04 ; C08L61/10 ; C08L61/12
摘要：
A novel process for preparing foundry cores or molds and binder materials used therefor are provided. The binder materials comprise (a) an alcohol-soluble phenolic resin, (b) a polyvalent metal hydroxide and/or oxide, (c) water, (d) an organic solvent, and (e) an alkali metal hydroxide. They are admixed with refractory particles, such as sand, and cured with carbon dioxide to form shaped foundry cores or molds. The process and materials of the invention bring about such advantages that curing may be performed with safe carbon dioxide, that shaped foundry cores or molds may be taken out from pattern immediately after curing, and that the products have a superior collapsibility after pouring a molten metal.
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