ATE125578T1 - PICKLING PROCESS FOR MILD STEEL AND BATH FOR PICKLING. - Google Patents

PICKLING PROCESS FOR MILD STEEL AND BATH FOR PICKLING.

Info

Publication number
ATE125578T1
ATE125578T1 AT92403104T AT92403104T ATE125578T1 AT E125578 T1 ATE125578 T1 AT E125578T1 AT 92403104 T AT92403104 T AT 92403104T AT 92403104 T AT92403104 T AT 92403104T AT E125578 T1 ATE125578 T1 AT E125578T1
Authority
AT
Austria
Prior art keywords
pickling
bath
mild steel
temperature
determined
Prior art date
Application number
AT92403104T
Other languages
German (de)
Inventor
Christine Mysson
Jean-Claude Catonne
Original Assignee
Lorraine Laminage
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
Application filed by Lorraine Laminage filed Critical Lorraine Laminage
Application granted granted Critical
Publication of ATE125578T1 publication Critical patent/ATE125578T1/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
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • 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
    • C23G1/081—Iron or steel solutions containing H2SO4
    • 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

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)

Abstract

Process for pickling a material made of mild steel, consisting in removing the scale formed during a conversion operation with heating by immersing the said material at a specified temperature in a pickling bath comprising a sulphuric acid/hydrochloric acid mixture and Fe(II) ions, characterised in that a pair of sulphuric acid concentration A and of hydrochloric acid concentration B is determined, giving an optimum pickling time for at least one Fe(II) ion concentration and at least one temperature, which are determined, the optimum pickling time being obtained as an optimised response by the simplex method, by comparing the values obtained for the pickling time for successive values of A and B, A and B being considered as variables, while the Fe(II) ion concentration and the temperature are constant. The invention also relates to a pickling bath and to a plant for making use of the process of the invention.
AT92403104T 1991-11-20 1992-11-18 PICKLING PROCESS FOR MILD STEEL AND BATH FOR PICKLING. ATE125578T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR919114309A FR2683832B1 (en) 1991-11-20 1991-11-20 PROCESS FOR STRIPPING MIXED STEEL MATERIAL, ESPECIALLY SHEETS, BATH AND STRIPPING INSTALLATION.

Publications (1)

Publication Number Publication Date
ATE125578T1 true ATE125578T1 (en) 1995-08-15

Family

ID=9419144

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92403104T ATE125578T1 (en) 1991-11-20 1992-11-18 PICKLING PROCESS FOR MILD STEEL AND BATH FOR PICKLING.

Country Status (8)

Country Link
EP (1) EP0543729B1 (en)
JP (1) JP3135720B2 (en)
KR (1) KR930010233A (en)
AT (1) ATE125578T1 (en)
CA (1) CA2083337C (en)
DE (1) DE69203698T2 (en)
ES (1) ES2075655T3 (en)
FR (1) FR2683832B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1294295C (en) * 2004-05-17 2007-01-10 文锐君 Hot-rolling steel plate cleaning agent
RU2415201C1 (en) * 2009-10-23 2011-03-27 Станислав Алексеевич Суворов Agent for removal of corrosion products off surface of metals

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE423246A (en) * 1937-08-21
US2927871A (en) * 1956-03-26 1960-03-08 Bethlehem Steel Corp Control of pickling baths
US3074277A (en) * 1958-03-20 1963-01-22 Inland Steel Co Method and apparatus for automatic control of acid concentration in pickling system
GB1362910A (en) * 1971-06-30 1974-08-07 Ibm Data processing system for finding optimum integer-valued solutions of linear programmes
EP0047724A1 (en) * 1980-09-09 1982-03-17 Boliden Aktiebolag A method of controlling or regulating the composition of pickling bath solutions for acid pickling metallic materials
SU1135807A1 (en) * 1983-07-29 1985-01-23 Днепропетровский Металлургический Институт Им.Л.И.Брежнева Solution for removing scale from metal surface
SU1310773A1 (en) * 1986-02-10 1987-05-15 Кузнецкий металлургический комбинат им.В.И.Ленина System for automatic optimizing
DD265029A1 (en) * 1987-11-25 1989-02-15 Dresden Forschzentr Mikroelek METHOD FOR LASER INTERFEROMETRIC CONTROL OF THE DEPTH IN PLASMA-RELATED PROCESSES

Also Published As

Publication number Publication date
DE69203698T2 (en) 1996-03-21
EP0543729A1 (en) 1993-05-26
FR2683832B1 (en) 1994-03-04
ES2075655T3 (en) 1995-10-01
CA2083337C (en) 2002-12-31
FR2683832A1 (en) 1993-05-21
JPH05239675A (en) 1993-09-17
DE69203698D1 (en) 1995-08-31
KR930010233A (en) 1993-06-22
EP0543729B1 (en) 1995-07-26
JP3135720B2 (en) 2001-02-19
CA2083337A1 (en) 1993-05-21

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee