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RU93046281A - STAINLESS STEEL DRINKING METHOD - Google Patents

STAINLESS STEEL DRINKING METHOD

Info

Publication number
RU93046281A
RU93046281A RU93046281/02A RU93046281A RU93046281A RU 93046281 A RU93046281 A RU 93046281A RU 93046281/02 A RU93046281/02 A RU 93046281/02A RU 93046281 A RU93046281 A RU 93046281A RU 93046281 A RU93046281 A RU 93046281A
Authority
RU
Russia
Prior art keywords
bath
stainless steel
drinking method
steel drinking
emulsifiers
Prior art date
Application number
RU93046281/02A
Other languages
Russian (ru)
Other versions
RU2126460C1 (en
Inventor
Бьянки Марко
Original Assignee
ИТБ С.р.л.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ITMI921946A external-priority patent/IT1255655B/en
Application filed by ИТБ С.р.л. filed Critical ИТБ С.р.л.
Publication of RU93046281A publication Critical patent/RU93046281A/en
Application granted granted Critical
Publication of RU2126460C1 publication Critical patent/RU2126460C1/en

Links

Claims (1)

Способ протравливания нержавеющей стали, состоящий в помещении материала, подлежащего обработке, в ванну, поддерживаемую при температуре от 30 до 70<198>С, имеющую следующий первоначальный состав: H<Mv>2<D>SO<Mv>4<D> по меньшей мере 150 г/л; Fe<M^>+3<D> по меньшей мере 15 г/л; HF по меньшей мере 40 г/л; H<Mv>2<D>O<Mv>2<D> (добавленная с известными стабилизаторами) 1-20 г/л; эмульгаторы, смачивающие агенты, полирующие агенты, ингибиторы против разъедания кислотой, при этом в ванну непрерывно подается воздух с расходом, равным по меньшей мере 3 м<M^>3<D>/ч на кубометр ванны, и количество стабилизированной H<Mv>2<D>O<Mv>2<D>, регулируемое для получения редоксного потенциала ванны, равного или большего 250 мВ.The method of pickling stainless steel, which consists in placing the material to be processed in a bath maintained at a temperature of 30 to 70 <198> C, having the following initial composition: H <Mv> 2 <D> SO <Mv> 4 <D> at least 150 g / l; Fe <M ^> + 3 <D> at least 15 g / l; HF at least 40 g / l; H <Mv> 2 <D> O <Mv> 2 <D> (added with known stabilizers) 1-20 g / l; emulsifiers, wetting agents, polishing agents, acid corrosion inhibitors, while continuously supplying air to the bath at a flow rate of at least 3 m <M ^> 3 <D> / h per cubic meter of bath, and the amount of stabilized H <Mv> 2 <D> O <Mv> 2 <D>, adjustable to obtain the redox potential of the bath equal to or greater than 250 mV.
RU93046281A 1992-08-06 1993-08-05 Method of pickling stainless steel RU2126460C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI92A001946 1992-08-06
ITMI921946A IT1255655B (en) 1992-08-06 1992-08-06 STAINLESS STEEL PICKLING AND PASSIVATION PROCESS WITHOUT THE USE OF NITRIC ACID

Publications (2)

Publication Number Publication Date
RU93046281A true RU93046281A (en) 1996-09-27
RU2126460C1 RU2126460C1 (en) 1999-02-20

Family

ID=11363848

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93046281A RU2126460C1 (en) 1992-08-06 1993-08-05 Method of pickling stainless steel

Country Status (12)

Country Link
US (1) US5908511A (en)
EP (1) EP0582121B1 (en)
JP (1) JP2819378B2 (en)
AT (1) ATE191017T1 (en)
BR (1) BR9400478A (en)
CZ (1) CZ285442B6 (en)
DE (2) DE69328139T2 (en)
ES (1) ES2143995T3 (en)
FI (1) FI101981B (en)
HU (1) HUT67521A (en)
IT (1) IT1255655B (en)
RU (1) RU2126460C1 (en)

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