发明授权
- 专利标题: Method for molding a pulverulent material
- 专利标题(中): 用于模制粉状材料的方法
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申请号: US872398申请日: 1986-06-10
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公开(公告)号: US4943403A公开(公告)日: 1990-07-24
- 发明人: Tsuneo Miyashita , Hiroaki Nishio , Michitaka Sato
- 申请人: Tsuneo Miyashita , Hiroaki Nishio , Michitaka Sato
- 申请人地址: JPX Tokyo
- 专利权人: Nippon Kokan Kabushiki Kaisha
- 当前专利权人: Nippon Kokan Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX60-129960 19850617
- 主分类号: B28B1/24
- IPC分类号: B28B1/24 ; B01D11/02 ; B01D12/00 ; B22F3/02 ; B22F3/10 ; B28B1/14 ; B28B1/26 ; C04B35/638
摘要:
There is disclosed a method for eliminating an organic dispersion medium from a molded product obtained by plasticizing-molding or casting-molding of metallic and/or ceramic powders wherein the elimination is by extraction by liquid carbon dioxide at a temperature not lower than -30.degree. C. and not higher than -31.1.degree. C. The method prevents nonuniform volumetric decrease of the molded product to be otherwise caused by the extraction of the organic dispersion medium, while also making it possible to completely eliminate the organic dispersion medium without causing residual strain or deformation in the molded product.