发明名称 Method for pressing cylindrical composite bodies
摘要 A method for producing ceramic composite bodies, in particular, cylindrical ceramic bodies for sheathed-element glow plugs, in which a plurality of shaping sleeves, which accommodate piece parts premolded by cold pressing, are inserted into corresponding bore holes of a vertically standing supporting plate that is heated via additional bore holes with the aid of cartridge heaters or a heat transfer liquid. The vertically standing supporting plate with the shaping sleeves is then clamped between two press plates of a press, and the piece parts located inside are subsequently pressed by press pins which, on both sides, pass through the press plates and into the shaping sleeves. Upon completion of the necessary pressure keeping period, the pressed compound, after retraction of the press pins and opening the press, can be hardened in a non-pressurized manner in the shaping sleeves located in the withdrawn supporting plate that is subjected to further heating. Finally, the pressed material can be removed from the shaping sleeves after the same have been cooled by air, and can be ground into the final shape using a grinding machine.
申请公布号 US6524414(B1) 申请公布日期 2003.02.25
申请号 US20010787807 申请日期 2001.07.25
申请人 ROBERT BOSCH GMBH 发明人 AICHELE WILFRIED;DRESSLER WOLFGANG
分类号 B30B15/34;B28B1/00;B28B3/00;B28B3/02;(IPC1-7):C04B37/00;A21C11/00 主分类号 B30B15/34
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