发明授权
- 专利标题: Pickling high-grade steel
- 专利标题(中): 高性能钢
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申请号: US732817申请日: 1991-07-19
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公开(公告)号: US5130000A公开(公告)日: 1992-07-14
- 发明人: Gerald Maresch , Erich Mahr
- 申请人: Gerald Maresch , Erich Mahr
- 申请人地址: ATX Graz
- 专利权人: Andritz-Patentverwaltungs-Gesellschaft m.b.H.
- 当前专利权人: Andritz-Patentverwaltungs-Gesellschaft m.b.H.
- 当前专利权人地址: ATX Graz
- 优先权: ATX1579/90 19900727
- 主分类号: C23G1/08
- IPC分类号: C23G1/08 ; C23F1/00 ; C23F1/28 ; C25F1/06
摘要:
Process for pickling high-grade steel, preferably high-grade steel hot strip, the high-grade steel being subjected to pickling with neutral electrolyte as well as to an after-treatment with mixed acid, nitric acid or a mixture of iron fluoride and hydrofluoric acid, the pickling with neutral electrolyte being preceded by a pre-treatment with sulfuric acid.
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