MX168028B - ACID STRIPPING PROCEDURE FOR PRODUCTS MADE OF STAINLESS STEEL - Google Patents

ACID STRIPPING PROCEDURE FOR PRODUCTS MADE OF STAINLESS STEEL

Info

Publication number
MX168028B
MX168028B MX329086A MX329086A MX168028B MX 168028 B MX168028 B MX 168028B MX 329086 A MX329086 A MX 329086A MX 329086 A MX329086 A MX 329086A MX 168028 B MX168028 B MX 168028B
Authority
MX
Mexico
Prior art keywords
stainless steel
pickling
products made
bath
acid stripping
Prior art date
Application number
MX329086A
Other languages
Spanish (es)
Inventor
Bernard Bousquet
Bernard Chetreff
Original Assignee
Ugine Gueugnon 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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9323241&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX168028(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ugine Gueugnon Sa filed Critical Ugine Gueugnon Sa
Publication of MX168028B publication Critical patent/MX168028B/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

Landscapes

  • 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)
  • ing And Chemical Polishing (AREA)
  • Detergent Compositions (AREA)

Abstract

La precente invención se refiere a procedimiento de decapado ácido de productos hechos de acero inoxidable, en la cual se utiliza un baño de decapad de composición inicial: HF 10 a 50 g/l Hierro férrico (Fe a la 3+)disuelto15 g/l Agua: el resto a una temperatura comprendida entre 15 y 70 grados centígrados, caracterizado en que, durante la o las operaciones de decapado, se mantiene el contenido en hierro férrico del baño con al menos 15 g/l mediante oxidacion del baño que comprende al menos una o varias inyecciones de aire de volumen total superior o igual a 1 Nm cubicos por metros cuadrado de acero inoxidable decapado y por hora del decapado de cada elemento de superfice decapada.The present invention refers to the acid pickling process of products made of stainless steel, in which a pickling bath of initial composition is used: HF 10 to 50 g / l Ferric iron (Fe at 3+) dissolved 15 g / l Water: the rest at a temperature between 15 and 70 degrees Celsius, characterized in that, during the pickling operation or operations, the iron content of the bath is maintained with at least 15 g / l by oxidation of the bath comprising the minus one or more injections of air with a total volume greater than or equal to 1 Nm cubic per square meter of pickled stainless steel and per hour of pickling of each pickled surface element.

MX329086A 1985-09-19 1986-07-29 ACID STRIPPING PROCEDURE FOR PRODUCTS MADE OF STAINLESS STEEL MX168028B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8514220A FR2587369B1 (en) 1985-09-19 1985-09-19 PROCESS OF ACID STRIPPING OF STAINLESS STEEL PRODUCTS

Publications (1)

Publication Number Publication Date
MX168028B true MX168028B (en) 1993-04-29

Family

ID=9323241

Family Applications (1)

Application Number Title Priority Date Filing Date
MX329086A MX168028B (en) 1985-09-19 1986-07-29 ACID STRIPPING PROCEDURE FOR PRODUCTS MADE OF STAINLESS STEEL

Country Status (10)

Country Link
EP (1) EP0236354B1 (en)
JP (1) JPS62501981A (en)
BR (1) BR8606873A (en)
CA (1) CA1272980A (en)
DE (1) DE3664340D1 (en)
ES (1) ES2000222A6 (en)
FI (1) FI81126C (en)
FR (1) FR2587369B1 (en)
MX (1) MX168028B (en)
WO (1) WO1987001739A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5338367A (en) * 1989-07-26 1994-08-16 Ugine, Aciers De Chatillon Et Gueugnon Pickling process in an acid bath of metallic products containing titanium or at least one chemical element of the titanium family
FR2650303B1 (en) * 1989-07-26 1993-12-10 Ugine Aciers Chatillon Gueugnon PROCESS FOR ACIDIC STRIPPING OF METAL PRODUCTS CONTAINING TITANIUM OR AT LEAST ONE CHEMICAL ELEMENT OF THE TITANIUM FAMILY
FR2673200A1 (en) * 1991-02-25 1992-08-28 Ugine Aciers METHOD FOR OVERDRAWING STEEL MATERIALS SUCH AS STAINLESS STEELS AND ALLIED STEELS.
IT1245594B (en) * 1991-03-29 1994-09-29 Itb Srl PICKLING AND PASSIVATION PROCESS OF STAINLESS STEEL WITHOUT NITRIC ACID
FR2683551B1 (en) * 1991-11-07 1994-09-16 Ugine Sa PROCESS FOR STRIPPING STEEL MATERIALS ON A PROCESSING LINE.
IT1255655B (en) * 1992-08-06 1995-11-09 STAINLESS STEEL PICKLING AND PASSIVATION PROCESS WITHOUT THE USE OF NITRIC ACID
IT1255855B (en) * 1992-10-12 1995-11-17 Cesare Pedrazzini PICKLING AND PASSIVATION PROCESS FOR TITANIUM SHEETS IN TAPE, WITHOUT THE USE OF NITRIC ACID.
FR2721328B1 (en) * 1994-06-15 1996-09-06 Ugine Sa Process for pickling metallic materials, in particular alloy steel, stainless steel or titanium alloy, with a solution of the type containing ferric ions in an acid medium.
IT1276954B1 (en) * 1995-10-18 1997-11-03 Novamax Itb S R L PICKLING AND PASSIVATION PROCESS OF STAINLESS STEEL WITHOUT THE USE OF NITRIC ACID
FR2745301B1 (en) * 1996-02-27 1998-04-03 Usinor Sacilor PROCESS FOR STRIPPING A STEEL PART AND PARTICULARLY A STAINLESS STEEL SHEET STRIP
FR2772050B1 (en) * 1997-12-10 1999-12-31 Imphy Sa PROCESS FOR STRIPPING STEEL AND IN PARTICULAR STAINLESS STEEL
GB9807286D0 (en) * 1998-04-06 1998-06-03 Solvay Interox Ltd Pickling process
DE19850524C2 (en) * 1998-11-03 2002-04-04 Eilenburger Elektrolyse & Umwelttechnik Gmbh Nitrate-free recycling pickling process for stainless steels
IT1312556B1 (en) 1999-05-03 2002-04-22 Henkel Kgaa STAINLESS STEEL PICKLING PROCESS IN THE ABSENCE OF ACIDONITRICO AND IN THE PRESENCE OF CHLORIDE IONS
JP6031606B2 (en) * 2012-07-31 2016-11-24 ポスコＰｏｓｃｏ High speed pickling process for producing austenitic stainless cold rolled steel sheet
CN109328245A (en) * 2017-05-31 2019-02-12 天佑科技有限责任公司 The inorganic agent of the pickling and formation passivating film that are carried out to remove peeling and the iron rust in stainless steel pipes and structures welding position
IT201900006672A1 (en) 2019-05-10 2020-11-10 Condoroil Stainless Srl UNIT FOR INTERNAL AND EXTERNAL ELECTROLYTIC PICKLING OF STAINLESS STEEL PIPES
KR102300834B1 (en) 2019-11-21 2021-09-13 주식회사 포스코 Ionic liquid for pickling stainless steel and pickling method for stainless steel using the same
EP3951014B1 (en) * 2020-01-09 2024-05-22 Primetals Technologies Japan, Ltd. Method for pickling steel plate and pickling apparatus
IT202000005848A1 (en) 2020-03-19 2021-09-19 Tenova Spa Process for pickling and / or passivating a stainless steel.

Family Cites Families (8)

* 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 (en) * 1952-03-18 1953-12-17 Deutsche Edelstahlwerke Ag Process for the regeneration of pickling baths
JPS549120A (en) * 1977-06-24 1979-01-23 Tokai Electro Chemical Co Method of controlling acid cleaning liquid for stainless steel
JPS57194262A (en) * 1981-05-26 1982-11-29 Mitsubishi Gas Chem Co Inc Descaling method for stainless steel
DE3222532A1 (en) * 1982-06-16 1983-12-22 Arno 5042 Erftstadt Kuhlmann Process and means for the acidic etching of austenitic stainless steels
FR2551465B3 (en) * 1983-09-02 1985-08-23 Gueugnon Sa Forges ACID STRIPPING PROCESS FOR STAINLESS STEELS AND ACID SOLUTION FOR IMPLEMENTING SAME
EP0188975B8 (en) * 1985-01-22 2002-01-09 Ugine S.A. Process for the acid pickling of steels, in particular stainless steels

Also Published As

Publication number Publication date
FI872187A (en) 1987-05-18
EP0236354B1 (en) 1989-07-12
FI872187A0 (en) 1987-05-18
FI81126C (en) 1990-09-10
CA1272980A (en) 1990-08-21
ES2000222A6 (en) 1988-01-16
WO1987001739A1 (en) 1987-03-26
JPS62501981A (en) 1987-08-06
JPH0420996B2 (en) 1992-04-07
BR8606873A (en) 1987-11-03
FR2587369A1 (en) 1987-03-20
FR2587369B1 (en) 1993-01-29
EP0236354A1 (en) 1987-09-16
FI81126B (en) 1990-05-31
DE3664340D1 (en) 1989-08-17

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