发明授权
- 专利标题： Method for treating and rinsing metal articles
- 专利标题（中）： 处理和冲洗金属制品的方法
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申请号： US519707申请日： 1974-10-31
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公开(公告)号： US3979220A公开(公告)日： 1976-09-07
- 发明人: Koichi Ishiyama , Yuji Sakata , Ikuo Wada
- 申请人： Koichi Ishiyama , Yuji Sakata , Ikuo Wada
- 申请人地址： JA Tokyo
- 专利权人： Ebara Udylite Kabushiki Kaisha
- 当前专利权人： Ebara Udylite Kabushiki Kaisha
- 当前专利权人地址： JA Tokyo
- 优先权： JA48-128635 19731115; JA48-131483 19731122; JA49-10643 19740125
- 主分类号： C25D19/00
- IPC分类号： C25D19/00 ; B08B7/04 ; C23G1/36
摘要：
Metal articles are sequentially treated in a surface-treatment tank containing a solution of surface-treating agents, then rinsed in a plurality of series-connected water-washing tanks.The contents of the surface-treatment tank and water-washing tanks are cycled to a concentrator by way of a heat exchanger and concentrated solution is returned to the surface-treatment tank. Steam is condensed in the heat exchanger to cause evaporation of water in the concentrator and the steam condensate is transferred to the water-washing tanks.
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