| 发明名称 |
METHOD OF OXYGEN PASSIVATION AND CLEANING OF STEEL PIPES |
| 摘要 |
corrosion protection; plants manufacturing steel pipes. SUBSTANCE: passivation and cleaning of steel pipes includes treatment of pipes with oxygen-containing agent; air is mainly used for the porous at addition of oxygen or nitrogen to concentration not exceeding 1.2 g/l; treatment is conducted for 0.5-50 min at flow rate of 50-200 m/s and temperature of 300-500 C. EFFECT: enhanced efficiency; ecological safety. 3 ex
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| 申请公布号 |
RU2190699(C2) |
申请公布日期 |
2002.10.10 |
| 申请号 |
RU20000130144 |
申请日期 |
2000.12.04 |
| 申请人 |
AKTSIONERNOE OBSHCHESTVO OTKRYTOGO TIPA "VSEROSSIJ;OTKRYTOE AKTSIONERNOE OBSHCHESTVO "INZHINIRINGOVAJ;INST;KOMPANIJA ZIOMAR A;INZHINIRINGOVAJ AOOT |
发明人 |
MAN'KINA N.N.;ZHURAVLEV L.S.;CHUBAR' L.S.;SHCHELOKOV V.I.;LISEJKIN I.D. |
| 分类号 |
C23G5/00;C23F11/02;F28G13/00;(IPC1-7):C23G5/00 |
主分类号 |
C23G5/00 |
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