| 发明名称 | Method for the surface treatment of stainless steel | ||
| 摘要 | In a method for surface treatment of stainless steel, the thermally produced layers of oxide are contacted with a composition effective to dissolve iron ions out of the layers of oxide. | ||
| 申请公布号 | US9115433(B2) | 申请公布日期 | 2015.08.25 |
| 申请号 | US200913126827 | 申请日期 | 2009.10.15 |
| 申请人 | POLIGRAT GMBH | 发明人 | Boehme Olaf;Piesslinger-Schweiger Siegfried |
| 分类号 | C23G1/08;C23C22/50;C23G1/32 | 主分类号 | C23G1/08 |
| 代理机构 | Carter, DeLuca, Farrell & Schmidt, LLP | 代理人 | Carter, DeLuca, Farrell & Schmidt, LLP |
| 主权项 | 1. A method for treating a surface of stainless steel which includes thermally produced layers of oxide, the method comprising: contacting the thermally produced layers of oxide identified by a discoloration on the surface, with a composition including a complexing agent and an oxidizing agent, the composition being effective to selectively dissolve iron ions out of the thermally produced layers of oxide, wherein no appreciable ablation of the surface results, and wherein full corrosion resistance of the stainless steel is attained immediately after treatment and without requiring any additional passivating treatment or delay time to form new passive layers on the stainless steel. | ||
| 地址 | Munich DE | ||