Deenameling process |
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| 申请号 | US14056550 | 申请日 | 1950-01-25 | 公开(公告)号 | US2584031A | 公开(公告)日 | 1952-01-29 |
| 申请人 | LAWNDALE ENAMELING CO; | 发明人 | LANDER ARTHUR M; | ||||
| 摘要 | |||||||
| 权利要求 | 1. IN A DE-ENAMELING PROCESS, THE STEPS OF IMMERSING THE ENAMELED PIECE IN A BATH OF SODIUM HYDROXIDE AND SODIUM FLUORIDE SOLUTION AT A TEMPERATURE OF FROM ABOUT 280 TO 350* F. DISSOLVE THE ENAMEL WHILE LEAVING A FILM OF SLUDGE ON THE SURFACE OF THE PIECE, AND SAND-SPRAYING THE PIECE AT PRESSURE OF FROM 30 TO 60 POUNDS TO REMOVE THE SLUDGE FILM THEREFROM. |
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| 说明书全文 | |||||||
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