RU93046281A - Способ протравливания нержавеющей стали - Google Patents

Способ протравливания нержавеющей стали

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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
English (en)
Other versions
RU2126460C1 (ru
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/it
Application filed by ИТБ С.р.л. filed Critical ИТБ С.р.л.
Publication of RU93046281A publication Critical patent/RU93046281A/ru
Application granted granted Critical
Publication of RU2126460C1 publication Critical patent/RU2126460C1/ru

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Claims (1)

  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.
RU93046281A 1992-08-06 1993-08-05 Способ протравливания нержавеющей стали RU2126460C1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI92A001946 1992-08-06
ITMI921946A IT1255655B (it) 1992-08-06 1992-08-06 Processo di decapaggio e passivazione di acciaio inossidabile senza impiego di acido nitrico

Publications (2)

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

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU93046281A RU2126460C1 (ru) 1992-08-06 1993-08-05 Способ протравливания нержавеющей стали

Country Status (12)

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

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CN105862049B (zh) * 2016-06-06 2018-07-13 滨中元川金属制品(昆山)有限公司 螺钉防发黑处理工艺
CN108300998B (zh) * 2018-02-02 2020-06-09 西安热工研究院有限公司 显示p91和p92钢原奥氏体晶界的侵蚀剂、制备方法及应用
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RU2712875C1 (ru) * 2019-05-28 2020-01-31 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Способ разделки корпуса боеприпаса из коррозионностойкой стали
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