EP0188975A1 - Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen - Google Patents

Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen Download PDF

Info

Publication number: EP0188975A1
Authority: EP; European Patent Office
Prior art keywords: solution; pickling; steels; process according; injection
Prior art date: 1985-01-22
Legal status (The legal status 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 status listed.): Granted

Application number

EP85420013A

Other languages

English (en)

French (fr)

Other versions

EP0188975B1 (de

EP0188975B2 (de

EP0188975B8 (de

Inventor

S.A. Ugine

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Ugine SA

Original Assignee

Ugine SA

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.)

1985-01-22

Filing date

1985-01-22

Publication date

1986-07-30

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8194569&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0188975(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1985-01-22 Application filed by Ugine SA filed Critical Ugine SA

1985-01-22 Priority to DE3588013T priority Critical patent/DE3588013T3/de

1985-01-22 Priority to EP85420013A priority patent/EP0188975B8/de

1985-01-22 Priority to AT85420013T priority patent/ATE121804T1/de

1986-07-30 Publication of EP0188975A1 publication Critical patent/EP0188975A1/de

1995-04-26 Publication of EP0188975B1 publication Critical patent/EP0188975B1/de

2001-10-24 Publication of EP0188975B2 publication Critical patent/EP0188975B2/de

2002-01-09 Application granted granted Critical

2002-01-09 Publication of EP0188975B8 publication Critical patent/EP0188975B8/de

2005-01-22 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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

Definitions

the present invention relates to a new method for carrying out the pickling of steel parts, and it relates more particularly, although not exclusively, to pickling by acid of stainless steels.
the object of the present invention is to avoid these drawbacks by eliminating the use of nitric acid as a pickling oxidant.
the method according to the invention for pickling steel parts, and in particular stainless steel consists in applying to the pieces to be pickled, a treating liquid solution, and it is characterized in that this treating liquid solution is an acid solution hydrofluoric HF.
the solution has a hydrofluoric acid concentration of between 5 and 50 g per liter, for a pH of between 0 and 3.
the pickling solution necessarily contains ferric inos Fe 3+ .
the pickling solution has a concentration of ferric ion Fe 3+ greater than 1 g / l and less than 150 g / l.
the treating solution is applied at a temperature between 10 and 70 ° C, for a residence time between 30 seconds and 5 minutes.
the pickling bath is subjected to an oxygenation operation.
the hydrofluoric acid treatment solution is placed at a REDOX potential of between -200 and +800 mV, potential measured between a platinum electrode and an Ag / Ag Cl reference electrode.
REDOX potential is the difference in potential measured between a non-corrodable electrode (for example platinum) and a reference electrode (for example Ag / Ag Cl or calomel saturated these two electrodes being immersed in the bath to be studied. The value thus measured makes it possible to characterize the oxidizing power of the chemical solution.
the new process consists in replacing the oxidant HN 0 3 by the oxidant Fe 3+ introduced in the form of fluorinated complexex.
Hydrofluoric acid HF is also the other necessary constituent of the stripper mixture.
the flow of air injected is obviously largely in excess of the stoichiometry; but the air injection also contributes to a certain agitation which is positive from the point of view of stripping action.
This process can be used, not only to pickle stainless steels, but also most mild steels, in particular silicon steels (which are currently often pickled with hydrochloric acid or sulfuric acid, acids requiring very important regeneration or treatment facilities).

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Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

EP85420013A 1985-01-22 1985-01-22 Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen Expired - Lifetime EP0188975B8 (de)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
DE3588013T DE3588013T3 (de)	1985-01-22	1985-01-22	Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen.
EP85420013A EP0188975B8 (de)	1985-01-22	1985-01-22	Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen
AT85420013T ATE121804T1 (de)	1985-01-22	1985-01-22	Verfahren zum säuren beizen von stahlen, insbesondere von rostfreien stahlen.

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP85420013A EP0188975B8 (de)	1985-01-22	1985-01-22	Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen

Publications (4)

Publication Number	Publication Date
EP0188975A1 true EP0188975A1 (de)	1986-07-30
EP0188975B1 EP0188975B1 (de)	1995-04-26
EP0188975B2 EP0188975B2 (de)	2001-10-24
EP0188975B8 EP0188975B8 (de)	2002-01-09

Family

ID=8194569

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP85420013A Expired - Lifetime EP0188975B8 (de)	1985-01-22	1985-01-22	Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen

Country Status (3)

Country	Link
EP (1)	EP0188975B8 (de)
AT (1)	ATE121804T1 (de)
DE (1)	DE3588013T3 (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1987001739A1 (fr) *	1985-09-19	1987-03-26	Ugine Gueugnon S.A.	Procede de decapage acide de produits en acier inoxydable
US4872919A (en) *	1988-01-28	1989-10-10	The Procter & Gamble Company	Method for removing precipitated calcium citrate from juice pasteurization or sterilization equipment
DE3937438A1 (de) *	1989-02-23	1990-08-30	Krupp Stahl Ag	Verfahren zum beizen von stahl
FR2673200A1 (fr) *	1991-02-25	1992-08-28	Ugine Aciers	Procede de surdecapage de materiaux en acier tels que les aciers inoxydables et les aciers allies.
EP0505606A1 (de) *	1991-03-29	1992-09-30	Itb S.R.L.	Verfahren zum Beizen und Passivieren von rostfreiem Stahl ohne Verwendung von Salpetersäure
US5154774A (en) *	1985-09-19	1992-10-13	Ugine Aciers De Chatillon Et Gueugnon	Process for acid pickling of stainless steel products
EP0582121A1 (de) *	1992-08-06	1994-02-09	Itb S.R.L.	Verfahren zum Beizen und Passivieren von rostfreiem Stahl ohne Verwendung von Salpetersäure
EP0769574A1 (de) *	1995-10-18	1997-04-23	NOVAMAX ITB s.r.l.	Verfahren zum Beizen und Passivieren von rostfreiem Stahl ohne Salpetersäure
FR2745301A1 (fr) *	1996-02-27	1997-08-29	Usinor Sacilor	Procede de decapage d'une piece en acier et notamment d'une bande de tole en acier inoxydable
US5843240A (en) *	1995-10-18	1998-12-01	Novamax Itb S.R.L.	Process for stainless steel pickling and passivation without using nitric acid
FR2772050A1 (fr) *	1997-12-10	1999-06-11	Imphy Sa	Procede de decapage d'acier et notamment d'acier inoxydable
EP0949354A1 (de) *	1998-04-06	1999-10-13	SOLVAY (Société Anonyme)	Beizverfahren
RU2154696C1 (ru) *	1999-06-08	2000-08-20	Московский государственный вечерний металлургический институт	Способ обработки окисленных металлических материалов
DE19850524C2 (de) *	1998-11-03	2002-04-04	Eilenburger Elektrolyse & Umwelttechnik Gmbh	Nitratfreies Recycling-Beizverfahren für Edelstähle
US6554908B1 (en)	1999-05-03	2003-04-29	Henkel Kommanditgesellschaft Auf Aktien	Process for pickling stainless steel in the absence of nitric acid and in the presence of chloride ions
WO2003048418A3 (de) *	2001-12-07	2004-08-26	Henkel Kgaa	Verfahren zum beizen von martensitischem oder ferritischem edelstahl
US20080280046A1 (en) *	2007-02-12	2008-11-13	Bryden Todd R	Process for treating metal surfaces
WO2010056825A3 (en) *	2008-11-14	2010-07-15	Ak Steel Properties, Inc.	Process for pickling silicon steel with an acidic pickling solution containing ferric ions

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102012004907A1 (de)	2012-03-02	2013-09-05	Sms Siemag Ag	Verfahren zum Beizen von Standard Stählen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2474526A (en)	1940-06-15	1949-06-28	Monsanto Chemicals	Picking of stainless steels
US2564549A (en) *	1945-07-02	1951-08-14	Albert R Stargardter	Pickling treatment
DE899890C (de) *	1952-03-18	1953-12-17	Deutsche Edelstahlwerke Ag	Verfahren zum Regenerieren von Beizbaedern
GB2000196A (en)	1977-06-24	1979-01-04	Tokai Electro Chemical Co	Controlling stainless steel pickling solution by hydrogen peroxide and sulphuric acid addition

1985
- 1985-01-22 EP EP85420013A patent/EP0188975B8/de not_active Expired - Lifetime
- 1985-01-22 AT AT85420013T patent/ATE121804T1/de not_active IP Right Cessation
- 1985-01-22 DE DE3588013T patent/DE3588013T3/de not_active Expired - Lifetime

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2474526A (en)	1940-06-15	1949-06-28	Monsanto Chemicals	Picking of stainless steels
US2564549A (en) *	1945-07-02	1951-08-14	Albert R Stargardter	Pickling treatment
DE899890C (de) *	1952-03-18	1953-12-17	Deutsche Edelstahlwerke Ag	Verfahren zum Regenerieren von Beizbaedern
GB2000196A (en)	1977-06-24	1979-01-04	Tokai Electro Chemical Co	Controlling stainless steel pickling solution by hydrogen peroxide and sulphuric acid addition

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5154774A (en) *	1985-09-19	1992-10-13	Ugine Aciers De Chatillon Et Gueugnon	Process for acid pickling of stainless steel products
WO1987001739A1 (fr) *	1985-09-19	1987-03-26	Ugine Gueugnon S.A.	Procede de decapage acide de produits en acier inoxydable
US4872919A (en) *	1988-01-28	1989-10-10	The Procter & Gamble Company	Method for removing precipitated calcium citrate from juice pasteurization or sterilization equipment
DE3937438A1 (de) *	1989-02-23	1990-08-30	Krupp Stahl Ag	Verfahren zum beizen von stahl
DE3937438C2 (de) *	1989-02-23	1998-01-29	Wilfried Simmer	Verfahren zum Beizen von Stahl
EP0501867A1 (de) *	1991-02-25	1992-09-02	Ugine S.A.	Verfahren zum Beizen von Stahlwerkstoffen wie z.B. rostfreien und legierten Stählen
US5690748A (en) *	1991-02-25	1997-11-25	Ugine Aciers De Chatillon Et Gueugnon	Process for the acid pickling of stainless steel products
FR2673200A1 (fr) *	1991-02-25	1992-08-28	Ugine Aciers	Procede de surdecapage de materiaux en acier tels que les aciers inoxydables et les aciers allies.
EP0505606A1 (de) *	1991-03-29	1992-09-30	Itb S.R.L.	Verfahren zum Beizen und Passivieren von rostfreiem Stahl ohne Verwendung von Salpetersäure
EP0582121A1 (de) *	1992-08-06	1994-02-09	Itb S.R.L.	Verfahren zum Beizen und Passivieren von rostfreiem Stahl ohne Verwendung von Salpetersäure
EP0769574A1 (de) *	1995-10-18	1997-04-23	NOVAMAX ITB s.r.l.	Verfahren zum Beizen und Passivieren von rostfreiem Stahl ohne Salpetersäure
US5843240A (en) *	1995-10-18	1998-12-01	Novamax Itb S.R.L.	Process for stainless steel pickling and passivation without using nitric acid
US6068001A (en) *	1995-10-18	2000-05-30	Novamax Itb S.R.L.	Process for stainless steel pickling and passivation without using nitric acid
FR2745301A1 (fr) *	1996-02-27	1997-08-29	Usinor Sacilor	Procede de decapage d'une piece en acier et notamment d'une bande de tole en acier inoxydable
EP0792949A1 (de) *	1996-02-27	1997-09-03	USINOR SACILOR Société Anonyme	Verfahren zum Beizen von Stahlwerkstücken, insbesondere Blechband aus rostfreiem Stahl
US5992196A (en) *	1996-02-27	1999-11-30	Usinor	Process for pickling a piece of steel and in particular a sheet strip of stainless steel
FR2772050A1 (fr) *	1997-12-10	1999-06-11	Imphy Sa	Procede de decapage d'acier et notamment d'acier inoxydable
EP0922787A1 (de) *	1997-12-10	1999-06-16	Imphy S.A.	Verfahren zum Beizen von rostfreiem Stahl
EP0949354A1 (de) *	1998-04-06	1999-10-13	SOLVAY (Société Anonyme)	Beizverfahren
US6210491B1 (en)	1998-04-06	2001-04-03	Solvay	Pickling process
US6428625B1 (en)	1998-04-06	2002-08-06	Solvay (Societe Anonyme)	Process for pickling a metal using hydrogen peroxide
DE19850524C2 (de) *	1998-11-03	2002-04-04	Eilenburger Elektrolyse & Umwelttechnik Gmbh	Nitratfreies Recycling-Beizverfahren für Edelstähle
US6554908B1 (en)	1999-05-03	2003-04-29	Henkel Kommanditgesellschaft Auf Aktien	Process for pickling stainless steel in the absence of nitric acid and in the presence of chloride ions
RU2154696C1 (ru) *	1999-06-08	2000-08-20	Московский государственный вечерний металлургический институт	Способ обработки окисленных металлических материалов
WO2003048418A3 (de) *	2001-12-07	2004-08-26	Henkel Kgaa	Verfahren zum beizen von martensitischem oder ferritischem edelstahl
US20080280046A1 (en) *	2007-02-12	2008-11-13	Bryden Todd R	Process for treating metal surfaces
US9234283B2 (en) *	2007-02-12	2016-01-12	Henkel Ag & Co. Kgaa	Process for treating metal surfaces
WO2010056825A3 (en) *	2008-11-14	2010-07-15	Ak Steel Properties, Inc.	Process for pickling silicon steel with an acidic pickling solution containing ferric ions
US8128754B2 (en)	2008-11-14	2012-03-06	Ak Steel Properties, Inc.	Ferric pickling of silicon steel

Also Published As

Publication number	Publication date
EP0188975B1 (de)	1995-04-26
EP0188975B2 (de)	2001-10-24
DE3588013T2 (de)	1995-09-14
DE3588013T3 (de)	2002-06-06
ATE121804T1 (de)	1995-05-15
EP0188975B8 (de)	2002-01-09
DE3588013D1 (de)	1995-06-01

Legal Events

Date	Code	Title	Description
1986-06-14	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1988-05-11	19A	Proceedings stayed before grant	Effective date: 19870525
1990-08-08	19F	Resumption of proceedings before grant (after stay of proceedings)	Effective date: 19900809
1991-05-08	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: UGINE ACIERS DE CHATILLON ET GUEUGNON
1991-07-17	17Q	First examination report despatched	Effective date: 19910603
1993-02-10	ITCL	It: translation for ep claims filed	Representative=s name: JACOBACCI CASETTA & PERANI S.P.A.
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Publication	Publication Date	Title
EP0188975B1 (de)	1995-04-26	Verfahren zum säuren Beizen von Stahlen, insbesondere von rostfreien Stahlen
US5759307A (en)	1998-06-02	Method of producing a cold-rolled strip in one pass
US5992196A (en)	1999-11-30	Process for pickling a piece of steel and in particular a sheet strip of stainless steel
EP0236354B1 (de)	1989-07-12	Verfahren zum säurebeizen von gegenständen aus rostfreiem stahl
US6149744A (en)	2000-11-21	Method of making austenitic stainless steel sheet
EP0796922B1 (de)	2001-07-04	Herstellungsverfahren eines austenitischen rostfreien Stahlblechs mit hohem Oblerflächenglanz und hoher Korrosionsbeständigkeit
FR2551465A3 (fr)	1985-03-08	Procede de decapage acide des aciers inoxydables et solution acide pour sa mise en oeuvre
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EP0592892A1 (de)	1994-04-20	Verfahren zum kontinuierlichen Beizen und Passivieren von Titanbleche ohne Verwendung von Salpetersäure
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