公开(公告)号：EP0331726B1

公开(公告)日：1994-04-27

申请号：EP88909450.4

申请日：1988-09-15

申请人： ROBERTSON, Harry

发明人： ROBERTSON, Harry

IPC分类号： B21H1/12 ,  C22C1/04 ,  B29B9/00 ,  C21D1/62 ,  C21B7/00 ,  C21C5/42 ,  B22F1/00

CPC分类号： B22D25/02 ,  Y10T29/49694

摘要： A method and apparatus (10) for producing spherical objects is disclosed, the apparatus having a reservoir (12) filled with a relatively dense molten material (14), the reservoir (12) being heated and hydraulically pressurized to maintain the molten state of the dense material. A second molten liquid, of lesser density and higher melting point is injected into the reservoir, the pressure and surface tension acting to force the injected material into a spherical form and the melting point difference acting to solidify the injected material.

公开(公告)号：EP0331726A1

公开(公告)日：1989-09-13

申请号：EP88909450.0

申请日：1988-09-15

申请人： ROBERTSON, Harry

发明人： ROBERTSON, Harry

IPC分类号： B22D25

CPC分类号： B22D25/02 ,  Y10T29/49694

摘要： A method and apparatus (10) for producing spherical objects is disclosed, the apparatus having a reservoir (12) filled with a relatively dense molten material (14), the reservoir (12) being heated and hydraulically pressurized to maintain the molten state of the dense material. A second molten liquid, of lesser density and higher melting point is injected into the reservoir, the pressure and surface tension acting to force the injected material into a spherical form and the melting point difference acting to solidify the injected material.