发明名称 |
Pickling agent containing urea and method of producing it. |
摘要 |
A long-time stable pickling agent for the removal of an oxide layer on a stainless steel after heat treatment, such as welding, which pickling agent comprises nitric acid and fillers and constitutes of a pickling paste or pickling gel to be coated on the heat treated stainless steel, or of a pickling liquid to be sprayed on the steel. According to the invention, the pickling agent also comprises urea for reduced formation of nitrous fumes when the pickling agent is used. |
申请公布号 |
ZA200205758(B) |
申请公布日期 |
2003.10.20 |
申请号 |
ZA20020005758 |
申请日期 |
2002.07.18 |
申请人 |
AVESTAPOLARIT AKTIEBOLAG (PUBL). |
发明人 |
SVEN-ERIC LUNNER;FREDRIK HAEGG |
分类号 |
C23F1/28;C23G1/02;C23G1/08 |
主分类号 |
C23F1/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|