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1. 发明授权

US5354534A Method for manufacturing sintered parts 失效
标题翻译：烧结部件的制造方法
公开(公告)号：US5354534A
公开(公告)日：1994-10-11
申请号：US946858
申请日：1992-09-18
申请人： Nobuyuki Kitagawa , Toshio Nomura , Katuyosi Saito
发明人： Nobuyuki Kitagawa , Toshio Nomura , Katuyosi Saito
IPC分类号： B22F3/02 , B22F3/10 , B22F3/22 , C04B35/56 , C04B35/58 , C04B35/638 , C22C1/05 , B22F3/00
CPC分类号： B22F3/225 , B22F3/1025 , B22F3/22 , C04B35/638 , C22C1/051 , B22F2998/00
摘要： The invention provides a method for manufacturing sintered parts, which uses as a debinder solvent a substance harmless to the human body and which can enhance the strength of an injection-molded product. Sintered parts suitable for use in industrial production processes and, moreover, extremely high in strength of injection-molded parts, can be produced by the steps of: mixing at least one of a sintering inorganic powders of a metal powder, a metal carbide, a carbon-nitride, a nitride powder and a ceramic powder, with an organic binder composed of an organic substance soluble in an alcohol series solvent and an organic substance insoluble in the same; injection-molding the composition obtained by the preceding process into a metal mold of a sintered part shape; immersing the injection-molded product obtained by the preceding step into an alcohol series solvent to elute and remove part of the organic binder; and heating the product to remove the residual organic binder and sintering the same, wherein the portion soluble in the alcohol series solvent of the organic binder accounts for 30 to 70% of the binder.
摘要翻译：本发明提供一种制造烧结部件的方法，其使用对人体无害的物质作为脱粘剂溶剂，并且可以提高注塑产品的强度。适用于工业生产工艺的烧结零件，以及注模部件的强度极高，可以通过以下步骤来制备：将金属粉末，金属碳化物，金属碳化物的烧结无机粉末，碳氮化物，氮化物粉末和陶瓷粉末，与可溶于醇系溶剂的有机物质和不溶于其的有机物质组成的有机粘合剂; 将通过前述方法获得的组合物注射成型为烧结部件形状的金属模具; 将通过前述步骤获得的注塑产品浸入醇系溶剂中以洗脱并除去部分有机粘合剂; 并加热产物以除去残留的有机粘合剂并烧结，其中可溶于有机粘合剂的醇系溶剂的部分占粘合剂的30-70％。

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