EP0972854A2 - Procédé de dècapage d'acier inoxydable - Google Patents

Procédé de dècapage d'acier inoxydable Download PDF

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Publication number
EP0972854A2
EP0972854A2 EP99111754A EP99111754A EP0972854A2 EP 0972854 A2 EP0972854 A2 EP 0972854A2 EP 99111754 A EP99111754 A EP 99111754A EP 99111754 A EP99111754 A EP 99111754A EP 0972854 A2 EP0972854 A2 EP 0972854A2
Authority
EP
European Patent Office
Prior art keywords
pickling
chlorine
hydrochloric acid
oxidizing agent
addition
Prior art date
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
EP99111754A
Other languages
German (de)
English (en)
Other versions
EP0972854B1 (fr
EP0972854A3 (fr
Inventor
Brigitta Wasserbauer
Edgar Braun
Gerald Dipl.-Ing.Dr. Maresch
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.)
Andritz AG
Original Assignee
Andritz Patentverwaltungs GmbH
Andritz AG
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.)
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Publication date
Application filed by Andritz Patentverwaltungs GmbH, Andritz AG filed Critical Andritz Patentverwaltungs GmbH
Publication of EP0972854A2 publication Critical patent/EP0972854A2/fr
Publication of EP0972854A3 publication Critical patent/EP0972854A3/fr
Application granted granted Critical
Publication of EP0972854B1 publication Critical patent/EP0972854B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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

Definitions

  • the invention relates to a method for pickling stainless steel, wherein under Stainless steel qualities AlSl 200, 300 and 400 according to the US standards be understood.
  • This concentration must be at least according to the present invention a third, but preferably half, of those solved by the pickling attack Metals amount to a corresponding effect in relation to To achieve pickling time.
  • the invention is therefore characterized in that the stainless steel is treated in an aqueous solution of hydrochloric acid at temperatures of at least 40 ° C.
  • a favorable embodiment of the invention is characterized in that the stainless steel is treated in an aqueous solution of hydrochloric acid at temperatures up to a maximum of the boiling point of an azeotropic hydrochloric acid.
  • An advantageous development of the invention is characterized in that an oxidizing agent is added to the aqueous hydrochloric acid.
  • a favorable further development of the invention is characterized in that one or more substances from the following compounds nitric acid, chlorine, hydrogen peroxide, chlorine-oxygen compounds, other chlorine-containing acids such as perchloric acid, chromium oxygen compounds such as CrO 3 and ferric chloride are used as the oxidizing agent.
  • An advantageous embodiment of the invention is characterized in that the addition takes place in such a way that at least one third, preferably half, of the metals dissolved in the pickling attack is in the form of ferric chloride.
  • An advantageous development of the invention is characterized in that the content of ferrichloride in the pickling solution is determined by measuring the density, conductivity, redox potential or photometrically and a combination of these measurement methods, the content of ferrichloride being able to be set or regulated on the basis of the measured value .
  • the first belt was moved through the pickling tanks at 30 m / min (pickling time 120 sec.) And was almost unpickled after pickling. The same band was pulled through the pickling tanks again and was after only about 50% descaled. Only after another transport through the pickling tub, this time at a speed of 15 m / min the tape is scale-free. The total pickling time was therefore 480 sec.

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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)
EP99111754A 1998-07-15 1999-06-18 Procédé de dècapage d'acier inoxydable Expired - Lifetime EP0972854B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT121798 1998-07-15
AT0121798A AT407755B (de) 1998-07-15 1998-07-15 Verfahren zum beizen von edelstahl

Publications (3)

Publication Number Publication Date
EP0972854A2 true EP0972854A2 (fr) 2000-01-19
EP0972854A3 EP0972854A3 (fr) 2000-07-19
EP0972854B1 EP0972854B1 (fr) 2005-05-04

Family

ID=3509143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99111754A Expired - Lifetime EP0972854B1 (fr) 1998-07-15 1999-06-18 Procédé de dècapage d'acier inoxydable

Country Status (7)

Country Link
US (1) US6250314B1 (fr)
EP (1) EP0972854B1 (fr)
KR (1) KR100592567B1 (fr)
AT (1) AT407755B (fr)
DE (1) DE59912005D1 (fr)
ES (1) ES2242330T3 (fr)
TW (1) TW475008B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103695940A (zh) * 2013-11-29 2014-04-02 明光市留香泵业有限公司 一种水溶性抗氧化除锈防锈液及其制备方法
CN103695925A (zh) * 2013-11-29 2014-04-02 明光市留香泵业有限公司 一种水溶性转化型防锈液及其制备方法
CN103695934A (zh) * 2013-11-29 2014-04-02 明光市留香泵业有限公司 一种乳液型除锈防锈液及其制备方法

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408765B (de) * 1999-03-05 2002-03-25 Andritz Ag Maschf Anlage zur kontinuierlichen behandlung von stahlbändern
ATE309397T1 (de) * 2001-04-09 2005-11-15 Ak Steel Properties Inc Wasserstoffperoxid-beizen von siliciumhaltigen elektrostrahlqualitäten
JP3726770B2 (ja) * 2001-04-27 2005-12-14 住友金属工業株式会社 連続酸洗方法および連続酸洗装置
KR101373975B1 (ko) * 2008-11-14 2014-03-12 에이케이 스틸 프로퍼티즈 인코포레이티드 제2철 이온을 함유하는 산성 산세척액으로 규소강을 산세척하는 방법
MX355793B (es) * 2011-09-26 2018-04-27 Ak Steel Properties Inc Decapado de acero inoxidable en un baño ácido electrolítico, oxidante.
CN102534639B (zh) * 2012-02-24 2013-06-12 重庆钢铁(集团)有限责任公司 一种轧钢生产线酸洗用盐酸补给方法
CN103320807B (zh) * 2012-03-23 2015-08-05 山西太钢不锈钢股份有限公司 降低酸液中硫酸根离子含量的方法
KR101482314B1 (ko) * 2012-10-22 2015-01-13 주식회사 포스코 산세정이 우수한 열연강판의 산세방법 및 장치
CN105755488A (zh) * 2016-04-01 2016-07-13 苏长伟 一种环保型钢铁除锈剂
WO2018117761A1 (fr) * 2016-12-23 2018-06-28 주식회사 포스코 Appareil et procédé destinés à améliorer l'efficacité de décapage d'un acier à haute résistance à la traction
CN109161908B (zh) * 2017-07-24 2022-08-05 叶涛 钢材除锈酸洗过程中减少酸雾污染的环保工艺及其设备
CN113330144A (zh) * 2019-03-22 2021-08-31 普锐特冶金技术日本有限公司 酸液调制装置和酸液供给装置以及酸洗设备
JP7176137B2 (ja) * 2020-01-09 2022-11-21 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 鋼板の酸洗方法及び酸洗装置
IT202000005848A1 (it) * 2020-03-19 2021-09-19 Tenova Spa Processo per decapare e/o passivare un acciaio inossidabile.
KR20230091617A (ko) 2021-12-16 2023-06-23 주식회사 포스코 스테인리스 열연강판의 산세 방법

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB444865A (en) * 1934-06-22 1936-03-23 Grasselli Chemical Co Improvements in or relating to the pickling of stainless steel and the like
DE2736255A1 (de) * 1977-08-11 1979-03-01 Beugin Procedes Sa Verfahren zum beizen von staehlen
JPS5486439A (en) * 1977-12-23 1979-07-10 Nippon Kokan Kk <Nkk> Control method for concentration of hydrochloric acid in pickling vessel
EP0047724A1 (fr) * 1980-09-09 1982-03-17 Boliden Aktiebolag Procédé pour contrôler ou régler la composition de solutions de bains de décapage pour le décapage acide de matériaux métalliques
JPS58199879A (ja) * 1982-05-15 1983-11-21 Nippon Steel Corp ステンレス鋼の酸洗方法
EP0513753A1 (fr) * 1991-05-14 1992-11-19 Nippon Steel Corporation Procédé de décapage de matériaux métalliques à base d'acier
EP0769574A1 (fr) * 1995-10-18 1997-04-23 NOVAMAX ITB s.r.l. Procédé de décapage et de passivation d'acier inoxydable sans acide nitrique
EP0770707A1 (fr) * 1995-09-01 1997-05-02 Keramchemie GmbH Procédé de fabrication en continu de bandes laminées au froid
EP0776993A1 (fr) * 1995-11-28 1997-06-04 Eka Chemicals AB Procédé de décapage d'acier
EP0792949A1 (fr) * 1996-02-27 1997-09-03 USINOR SACILOR Société Anonyme Procédé de décapage d'une pièce en acier et notamment d'une bande de tÔle en acier inoxydable
EP0814180A1 (fr) * 1996-06-19 1997-12-29 Keramchemie GmbH Procédé de traitement de surfaces en acier inoxydable
US5879465A (en) * 1996-12-20 1999-03-09 Mckevitt; Patrick Method and apparatus for descaling hot rolled stainless steel strip
WO1999027162A1 (fr) * 1997-11-24 1999-06-03 Acciai Speciali Terni S.P.A. Procede de decapage de produits d'acier

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US3725527A (en) * 1968-09-19 1973-04-03 Kanto Denka Kogyo Kk Process for recovering pure aqueous solution of ferric chloride and aqueous solution of metal chlorides free of ferric chloride from ferrous metal material
US3928529A (en) * 1971-08-13 1975-12-23 Union Carbide Corp Process for recovering HCl and Fe{hd 2{b O{HD 3 {L from pickle liquor
BE871631A (fr) * 1978-10-27 1979-04-27 Centre Rech Metallurgique Procede de decapage continu de toles en acier.
US5154774A (en) * 1985-09-19 1992-10-13 Ugine Aciers De Chatillon Et Gueugnon Process for acid pickling of stainless steel products
US4807653A (en) 1987-01-30 1989-02-28 Wean Industries, Inc. Continuous treating of a strip-like product
JPH02163321A (ja) * 1988-03-10 1990-06-22 Nkk Corp 電磁鋼板の酸洗方法
SE501561C2 (sv) 1993-05-09 1995-03-13 Swedish Pickling Ab Förfarande och anordning vid betning av rostfritt stål varvid strömmen leds igenom stålbandet i dess tjockleksriktning
AT404030B (de) 1995-02-15 1998-07-27 Andritz Patentverwaltung Verfahren zur beize von materialien aus stahl, insbesondere edelstahl
US5615727A (en) 1995-02-24 1997-04-01 Ollman; Melvin L. Composite metal strip and methods of making same
ES2179940T3 (es) 1995-04-14 2003-02-01 Nippon Steel Corp Aparato para fabricar bandas de acero inoxidable.
ES2142018T3 (es) 1995-09-15 2000-04-01 Mannesmann Ag Procedimiento e instalacion para el tratamiento de productos en forma de fleje de acero inoxidable.
IT1276954B1 (it) * 1995-10-18 1997-11-03 Novamax Itb S R L Processo di decapaggio e di passivazione di acciaio inossidabile senza impiego di acido nitrico
DE19606305C1 (de) 1996-02-08 1997-10-02 Mannesmann Ag Verfahren und Vorrichtung zum inline-Beizen von Warmbändern hinter Dünnbrammenerzeugungsanlagen
US5702534A (en) * 1996-05-24 1997-12-30 Armco Inc. Hydrogen peroxide pickling of stainless steel

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB444865A (en) * 1934-06-22 1936-03-23 Grasselli Chemical Co Improvements in or relating to the pickling of stainless steel and the like
DE2736255A1 (de) * 1977-08-11 1979-03-01 Beugin Procedes Sa Verfahren zum beizen von staehlen
JPS5486439A (en) * 1977-12-23 1979-07-10 Nippon Kokan Kk <Nkk> Control method for concentration of hydrochloric acid in pickling vessel
EP0047724A1 (fr) * 1980-09-09 1982-03-17 Boliden Aktiebolag Procédé pour contrôler ou régler la composition de solutions de bains de décapage pour le décapage acide de matériaux métalliques
JPS58199879A (ja) * 1982-05-15 1983-11-21 Nippon Steel Corp ステンレス鋼の酸洗方法
EP0513753A1 (fr) * 1991-05-14 1992-11-19 Nippon Steel Corporation Procédé de décapage de matériaux métalliques à base d'acier
EP0770707A1 (fr) * 1995-09-01 1997-05-02 Keramchemie GmbH Procédé de fabrication en continu de bandes laminées au froid
EP0769574A1 (fr) * 1995-10-18 1997-04-23 NOVAMAX ITB s.r.l. Procédé de décapage et de passivation d'acier inoxydable sans acide nitrique
EP0776993A1 (fr) * 1995-11-28 1997-06-04 Eka Chemicals AB Procédé de décapage d'acier
EP0792949A1 (fr) * 1996-02-27 1997-09-03 USINOR SACILOR Société Anonyme Procédé de décapage d'une pièce en acier et notamment d'une bande de tÔle en acier inoxydable
EP0814180A1 (fr) * 1996-06-19 1997-12-29 Keramchemie GmbH Procédé de traitement de surfaces en acier inoxydable
US5879465A (en) * 1996-12-20 1999-03-09 Mckevitt; Patrick Method and apparatus for descaling hot rolled stainless steel strip
WO1999027162A1 (fr) * 1997-11-24 1999-06-03 Acciai Speciali Terni S.P.A. Procede de decapage de produits d'acier

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Title
NIPON STEEL: "Removing sclale from stainless steel" CHEMICAL ABSTRACTS + INDEXES,US,AMERICAN CHEMICAL SOCIETY. COLUMBUS, Bd. 18, Nr. 84, 3. Mai 1976 (1976-05-03), Seite 223 XP002041351 ISSN: 0009-2258 *
PATENT ABSTRACTS OF JAPAN vol. 003, no. 109 (C-058), 12. September 1979 (1979-09-12) & JP 54 086439 A (NIPPON KOKAN KK), 10. Juli 1979 (1979-07-10) *
PATENT ABSTRACTS OF JAPAN vol. 008, no. 041 (C-211), 22. Februar 1984 (1984-02-22) & JP 58 199879 A (SHIN NIPPON SEITETSU KK), 21. November 1983 (1983-11-21) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103695940A (zh) * 2013-11-29 2014-04-02 明光市留香泵业有限公司 一种水溶性抗氧化除锈防锈液及其制备方法
CN103695925A (zh) * 2013-11-29 2014-04-02 明光市留香泵业有限公司 一种水溶性转化型防锈液及其制备方法
CN103695934A (zh) * 2013-11-29 2014-04-02 明光市留香泵业有限公司 一种乳液型除锈防锈液及其制备方法
CN103695940B (zh) * 2013-11-29 2016-06-29 明光市留香泵业有限公司 一种水溶性抗氧化除锈防锈液及其制备方法

Also Published As

Publication number Publication date
KR20000011310A (ko) 2000-02-25
EP0972854B1 (fr) 2005-05-04
ES2242330T3 (es) 2005-11-01
KR100592567B1 (ko) 2006-06-26
US6250314B1 (en) 2001-06-26
AT407755B (de) 2001-06-25
TW475008B (en) 2002-02-01
DE59912005D1 (de) 2005-06-09
ATA121798A (de) 2000-10-15
EP0972854A3 (fr) 2000-07-19

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