IT1255655B - Processo di decapaggio e passivazione di acciaio inossidabile senza impiego di acido nitrico - Google Patents

Processo di decapaggio e passivazione di acciaio inossidabile senza impiego di acido nitrico

Info

Publication number
IT1255655B
IT1255655B ITMI921946A ITMI921946A IT1255655B IT 1255655 B IT1255655 B IT 1255655B IT MI921946 A ITMI921946 A IT MI921946A IT MI921946 A ITMI921946 A IT MI921946A IT 1255655 B IT1255655 B IT 1255655B
Authority
IT
Italy
Prior art keywords
formula
bath
stainless steel
nitric acid
passivation process
Prior art date
Application number
ITMI921946A
Other languages
English (en)
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11363848&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IT1255655(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of ITMI921946A0 publication Critical patent/ITMI921946A0/it
Priority to ITMI921946A priority Critical patent/IT1255655B/it
Application filed filed Critical
Priority to AT93111528T priority patent/ATE191017T1/de
Priority to DE69328139T priority patent/DE69328139T2/de
Priority to EP93111528A priority patent/EP0582121B1/en
Priority to DE0582121T priority patent/DE582121T1/de
Priority to ES93111528T priority patent/ES2143995T3/es
Priority to HU9302112A priority patent/HUT67521A/hu
Priority to RU93046281A priority patent/RU2126460C1/ru
Priority to JP5212109A priority patent/JP2819378B2/ja
Priority to FI933474A priority patent/FI101981B/fi
Priority to CZ931618A priority patent/CZ285442B6/cs
Publication of ITMI921946A1 publication Critical patent/ITMI921946A1/it
Priority to BR9400478A priority patent/BR9400478A/pt
Publication of IT1255655B publication Critical patent/IT1255655B/it
Application granted granted Critical
Priority to US08/874,797 priority patent/US5908511A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/086—Iron or steel solutions containing HF
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Chemical Treatment Of Metals (AREA)
  • ing And Chemical Polishing (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

Procedimento per il decapaggio di acciaio inox consistente nel mettere a contatto il materiale da trattare con un bagno mantenuto a temperatura compresa fra 30°C e 70°C ed avente la seguente composizione iniziale:a) (FORMULA)b) (FORMULA)c) (FORMULA)d) (FORMULA)e) additivi emulsionanti, bagnanti, brillantanti e inibitori di attacco acido; in detto bagno essendo immesso In continuo:- un flusso d'aria pari ad almeno 3m3 /h per m3 di bagno, e un quantitativo di H202 stabilizzata regolato in base al potenziale Redox del bagno che deve essere mantenuto a valore ? 250 mV.
ITMI921946A 1992-08-06 1992-08-06 Processo di decapaggio e passivazione di acciaio inossidabile senza impiego di acido nitrico IT1255655B (it)

Priority Applications (13)

Application Number Priority Date Filing Date Title
ITMI921946A IT1255655B (it) 1992-08-06 1992-08-06 Processo di decapaggio e passivazione di acciaio inossidabile senza impiego di acido nitrico
AT93111528T ATE191017T1 (de) 1992-08-06 1993-07-19 Verfahren zum beizen und passivieren von rostfreiem stahl ohne verwendung von salpetersäure
DE69328139T DE69328139T2 (de) 1992-08-06 1993-07-19 Verfahren zum Beizen und Passivieren von rostfreiem Stahl ohne Verwendung von Salpetersäure
EP93111528A EP0582121B1 (en) 1992-08-06 1993-07-19 Process for stainless steel pickling and passivation without using nitric acid
DE0582121T DE582121T1 (de) 1992-08-06 1993-07-19 Verfahren zum Beizen und Passivieren von rostfreiem Stahl ohne Verwendung von Salpetersäure.
ES93111528T ES2143995T3 (es) 1992-08-06 1993-07-19 Proceso para decapar y pasivar acero inoxidable sin el concurso de acido nitrico.
HU9302112A HUT67521A (en) 1992-08-06 1993-07-21 Process for stainless steel pickling and passivation without using nitric acid
FI933474A FI101981B (fi) 1992-08-06 1993-08-05 Menetelmä ruostumattoman teräksen peittaukseen ja passivointiin ilman typpihappoa
RU93046281A RU2126460C1 (ru) 1992-08-06 1993-08-05 Способ протравливания нержавеющей стали
JP5212109A JP2819378B2 (ja) 1992-08-06 1993-08-05 ステンレス鋼のピックリング法
CZ931618A CZ285442B6 (cs) 1992-08-06 1993-08-06 Způsob moření nekorodující oceli
BR9400478A BR9400478A (pt) 1992-08-06 1994-02-09 Processo para a decapagem e passivação de aço inoxidável sem uso de ácido nítrico
US08/874,797 US5908511A (en) 1992-08-06 1997-06-13 Process for stainless steel pickling and passivation without using nitric acid

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
ITMI921946A0 ITMI921946A0 (it) 1992-08-06
ITMI921946A1 ITMI921946A1 (it) 1994-02-06
IT1255655B true IT1255655B (it) 1995-11-09

Family

ID=11363848

Family Applications (1)

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

Country Status (12)

Country Link
US (1) US5908511A (it)
EP (1) EP0582121B1 (it)
JP (1) JP2819378B2 (it)
AT (1) ATE191017T1 (it)
BR (1) BR9400478A (it)
CZ (1) CZ285442B6 (it)
DE (2) DE582121T1 (it)
ES (1) ES2143995T3 (it)
FI (1) FI101981B (it)
HU (1) HUT67521A (it)
IT (1) IT1255655B (it)
RU (1) RU2126460C1 (it)

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CN103882455A (zh) * 2014-03-18 2014-06-25 浙江大学 一种不含硝酸的不锈钢酸洗液及其制备方法
CN105369266A (zh) * 2015-12-14 2016-03-02 浙江大学 一种基于Fenton氧化反应的钢材酸洗液及酸洗工艺
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
JP6605066B2 (ja) * 2018-03-30 2019-11-13 日鉄ステンレス株式会社 Ｆｅ−Ｃｒ合金およびその製造方法
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
KR102300834B1 (ko) 2019-11-21 2021-09-13 주식회사 포스코 스테인리스강 산세용 이온성 액체 및 이를 이용한 스테인리스강의 산세방법
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Also Published As

Publication number Publication date
JPH06212463A (ja) 1994-08-02
DE69328139D1 (de) 2000-04-27
DE69328139T2 (de) 2000-10-19
ITMI921946A0 (it) 1992-08-06
DE582121T1 (de) 1994-06-16
ATE191017T1 (de) 2000-04-15
RU2126460C1 (ru) 1999-02-20
JP2819378B2 (ja) 1998-10-30
CZ285442B6 (cs) 1999-08-11
ITMI921946A1 (it) 1994-02-06
HU9302112D0 (en) 1993-11-29
HUT67521A (en) 1995-04-28
FI933474A0 (fi) 1993-08-05
EP0582121A1 (en) 1994-02-09
US5908511A (en) 1999-06-01
BR9400478A (pt) 1994-05-17
FI101981B (fi) 1998-09-30
CZ161893A3 (en) 1995-02-15
FI933474L (fi) 1994-02-07
EP0582121B1 (en) 2000-03-22
ES2143995T3 (es) 2000-06-01

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