公开(公告)号：US4923652A

公开(公告)日：1990-05-08

申请号：US186487

申请日：1988-02-24

申请人： Norihiro Murakawa ,  Hisashi Isomura ,  Kazukiyo Miura ,  Shinichi Aoki

发明人： Norihiro Murakawa ,  Hisashi Isomura ,  Kazukiyo Miura ,  Shinichi Aoki

IPC分类号： C04B35/64 ,  C04B35/638 ,  C04B33/34

CPC分类号： C04B35/638

摘要： A method of vaporizing and removing a binder from a powder-molded product containing the binder, which method comprises:coating the greater part of the surface of said powder-molded product with a thin resin film having air-tightness thereby leasing an exposed surface portion;pressurizing the thus-coated surface portion of the pressure-molded product hydrostatically;vaporizing the binder in the power-molded product under said hydrostatic pressurization; andremoving the vaporized binder to the exterior of the power-molded product through said exposed surface portion not coated with the thin film.