ES2162155T3 - STAINLESS STEEL DECAPING WITH HYDROGEN PEROXIDE. - Google Patents

STAINLESS STEEL DECAPING WITH HYDROGEN PEROXIDE.

Info

Publication number
ES2162155T3
ES2162155T3 ES97108296T ES97108296T ES2162155T3 ES 2162155 T3 ES2162155 T3 ES 2162155T3 ES 97108296 T ES97108296 T ES 97108296T ES 97108296 T ES97108296 T ES 97108296T ES 2162155 T3 ES2162155 T3 ES 2162155T3
Authority
ES
Spain
Prior art keywords
band
incrustation
inorganic acid
decaping
stainless steel
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.)
Expired - Lifetime
Application number
ES97108296T
Other languages
Spanish (es)
Inventor
Ronald D Rodabaugh
Jerald W Leeker
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.)
Armco Inc
Original Assignee
Armco Inc
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
Priority claimed from US08/667,498 external-priority patent/US5702534A/en
Priority claimed from US08/821,154 external-priority patent/US5743968A/en
Application filed by Armco Inc filed Critical Armco Inc
Application granted granted Critical
Publication of ES2162155T3 publication Critical patent/ES2162155T3/en
Anticipated expiration legal-status Critical
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
    • 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

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)
  • Treating Waste Gases (AREA)

Abstract

UN PROCEDIMIENTO DE ELIMINACION DE INCRUSTACIONES DEL ACERO INOXIDABLE, UTILIZANDO UNA SOLUCION ACUOSA, QUE CONTIENE PEROXIDO DE HIDROGENO Y UN ACIDO INORGANICO, P.EJ. ACIDO HIDROCLORICO O SULFURICO. UNA BANDA DE ACERO INOXIDABLE LAMINADO EN CALIENTE O RECOCIDO (10) CUBIERTA DE INCRUSTACIONES, SE SUMERGE EN ACIDO INORGANICO CALIENTE, CONTENIDO EN TANQUES DE DECAPADO (12) Y (14). A CONTINUACION, LA BANDA PUEDE PRESENTAR AUN CANTIDADES RESIDUALES DE INCRUSTACION FUERTEMENTE ADHERIDA (11). DICHA INCRUSTACION, SE ACTIVA MEDIANTE UNA SOLUCION, QUE CONTIENE EL ACIDO INORGANICO Y PEROXIDO DE HIDROGENO, APLICADA A DICHA BANDA MEDIANTE, POR EJEMPLO, UNA TOBERA DE PULVERIZACION (16), QUE SE EXTIENDE TRANSVERSALMENTE, A LO LARGO DE LA TOTALIDAD DE LA BANDA Y SITUADA POR ENCIMA DE LA MISMA, Y OTRA TOBERA DE PULVERIZACION (18), QUE SE EXTIENDE TRANSVERSALMENTE, A LO LARGO DE LA TOTALIDAD DE LA BANDA Y SITUADA POR DEBAJO DE LA MISMA. PUEDE SER DESEABLE, PASAR LA BANDA ACTIVADA NUEVAMENTE, A TRAVES DEL ACIDO INORGANICO CALIENTE Y REACTIVAR DICHA BANDA A VELOCIDADES DE PRODUCCION MUY ELEVADAS, PARA ASEGURAR LA COMPLETA ELIMINACION DE LA INCRUSTACION. EL PEROXIDO DE HIDROGENO QUE GOTEA DESDE LA BANDA, SE RECOGE EN UN DEPOSITO DE RECOGIDA (30) Y SE HACE FLUIR HACIA EL INTERIOR DE UN TANQUE (28). PREFERIBLEMENTE, LA SOLUCION ACUOSA CONSUMIDA Y RECOGIDA, QUE CONTIENE EL ACIDO INORGANICO Y EL PEROXIDO DE HIDROGENO GASTADO, SE DISTRIBUYE EN LOS TANQUES DE DECAPADO. DICHA SOLUCION ACUOSA, CONTRIBUYE A LA ELIMINACION DE CUALQUIER INCRUSTACION RESIDUAL O MANCHA RESIDUAL SOBRE LA BANDA, MEJORANDO POR TANTO LA LIMPIEZA DE LA BANDA DECAPADA.A PROCEDURE FOR THE ELIMINATION OF INCRUSTATIONS OF STAINLESS STEEL, USING A WATER SOLUTION, CONTAINING HYDROGEN PEROXIDE AND AN INORGANIC ACID, P.EJ. HYDROCHLORIC OR SULFURIC ACID. A HOT ROLLED OR RECOGNIZED STAINLESS STEEL BAND (10) INCRUSTATION COVER, IS SUBMERSED IN HOT INORGANIC ACID, CONTAINED IN DECAPING TANKS (12) AND (14). BELOW, THE BAND CAN SUBMIT STILL RESIDUAL AMOUNTS OF STRONG ADHERED INCRUSTATION (11). SUCH INCRUSTATION, IS ACTIVATED THROUGH A SOLUTION, CONTAINING THE INORGANIC ACID AND PEROXIDE OF HYDROGEN, APPLIED TO SUCH BAND THROUGH, FOR EXAMPLE, A SPRAY TOWEL (16), THAT EXTENDS TRANSVERSALLY THROUGH AND SITUATED ABOVE THE SAME, AND ANOTHER SPRAY TOWER (18), WHICH EXTENDS TRANSVERSALLY, THROUGH THE TOTALITY OF THE BAND AND SITUATED BELOW THE SAME. IT MAY BE DESIRABLE TO PASS THE BAND ACTIVATED AGAIN, THROUGH THE HOT INORGANIC ACID AND REACTIVATE SUCH BAND AT VERY ELEVATED PRODUCTION SPEEDS, TO ENSURE THE COMPLETE ELIMINATION OF THE INCRUSTATION. THE HYDROGEN PEROXIDE THAT DROPS FROM THE BAND, COLLECTS IN A COLLECTION TANK (30) AND IS FLOWED INSIDE A TANK (28). PREFERIBLY, THE CONSUMED AND COLLECTED WATER SOLUTION, CONTAINING THE INORGANIC ACID AND THE PEROXIDE OF WASTE HYDROGEN, IS DISTRIBUTED IN THE TANKS OF DECAPING. SUCH A WATER SOLUTION, CONTRIBUTES TO THE ELIMINATION OF ANY RESIDUAL INCRUSTATION OR RESIDUAL STAIN ON THE BAND, IMPROVING THE CLEANING OF THE DECAPED BAND.

ES97108296T 1996-05-24 1997-05-22 STAINLESS STEEL DECAPING WITH HYDROGEN PEROXIDE. Expired - Lifetime ES2162155T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/667,498 US5702534A (en) 1996-05-24 1996-05-24 Hydrogen peroxide pickling of stainless steel
US08/821,154 US5743968A (en) 1997-03-20 1997-03-20 Hydrogen peroxide pickling of stainless steel

Publications (1)

Publication Number Publication Date
ES2162155T3 true ES2162155T3 (en) 2001-12-16

Family

ID=27099693

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97108296T Expired - Lifetime ES2162155T3 (en) 1996-05-24 1997-05-22 STAINLESS STEEL DECAPING WITH HYDROGEN PEROXIDE.

Country Status (14)

Country Link
EP (1) EP0808919B1 (en)
JP (1) JP4032319B2 (en)
KR (1) KR100492841B1 (en)
CN (1) CN1177082C (en)
AR (1) AR007285A1 (en)
AT (1) ATE204033T1 (en)
AU (1) AU706523B2 (en)
BR (1) BR9703228A (en)
CA (1) CA2205122C (en)
DE (1) DE69705993T2 (en)
DK (1) DK0808919T3 (en)
ES (1) ES2162155T3 (en)
MX (1) MX9703809A (en)
TW (1) TW416996B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE309397T1 (en) * 2001-04-09 2005-11-15 Ak Steel Properties Inc HYDROGEN PEROXIDE PICKLING OF SILICON ELECTRIC JET QUALITIES
CA2443635C (en) * 2001-04-09 2011-03-29 Vijay N. Madi Apparatus and method for removing hydrogen peroxide from spent pickle liquor
KR100470410B1 (en) * 2002-05-29 2005-02-07 주식회사 포스코 Pickling method for reducing hot spot of cold rolled strip surface
KR100948923B1 (en) * 2003-05-29 2010-03-23 주식회사 포스코 Device for removing scale on strip in pickling line
CN101922011B (en) * 2010-08-06 2012-08-29 东北大学 Pickling method of surface of 430 stainless steel
KR101316393B1 (en) * 2011-08-10 2013-10-08 주식회사 포스코 Eco-friendly scale removing system of martensitic stainless steel sheet and method for manufacturing martensitic stainless steel sheet using the same
ES2742827T3 (en) 2014-12-02 2020-02-17 Cmi Uvk Gmbh Method and treatment system of a carbon steel band, especially for pickling
CN106148973A (en) * 2015-04-21 2016-11-23 宝钢特钢有限公司 A kind of acid washing method of hot rolling ordinary stainless steel plate
CN105908196A (en) * 2016-06-02 2016-08-31 中冶南方工程技术有限公司 Nitric acid-free acid washing method of hot-rolled 304 austenitic stainless steel
CN106011886A (en) * 2016-06-02 2016-10-12 中冶南方工程技术有限公司 Nitric acid-free pickling method for hot-rolled 201 austenitic stainless steel
CN105887103A (en) * 2016-06-02 2016-08-24 中冶南方工程技术有限公司 Nitric acid-free acid pickling method for hot-rolled 430 ferritic stainless steel
CN105908195B (en) * 2016-06-02 2018-03-27 中冶南方工程技术有限公司 A kind of hot rolling 409L ferritic stainless steels are without nitric acid acidwashing method
CN105887104A (en) * 2016-06-02 2016-08-24 中冶南方工程技术有限公司 Nitric acid-free pickling method for hot-rolled 439 ferrite stainless steel
CN106435607B (en) * 2016-06-30 2021-05-18 宝钢德盛不锈钢有限公司 Environment-friendly continuous annealing and pickling production method for stainless steel hot-rolled coil and pickling solution
CN106835159B (en) * 2016-12-27 2021-05-18 宝钢德盛不锈钢有限公司 Continuous pickling method and pickling solution for medium-high chromium stainless steel cold-rolled coil
TWI657167B (en) * 2018-02-21 2019-04-21 中國鋼鐵股份有限公司 Pickled steel belt cleaning device
CN112672641B (en) * 2018-09-24 2022-12-09 莱利专利股份有限公司 Milking system with detection system
CN110316511A (en) * 2019-06-05 2019-10-11 浙江长兴鼎昌金属制品有限公司 A kind of energy-saving equipment producing cooling conveying for stainless steel
CN114011790A (en) * 2021-11-25 2022-02-08 桂林电子科技大学 Automatic pickling processing equipment for mechanical parts
CN114959717A (en) * 2022-06-15 2022-08-30 中冶华天工程技术有限公司 Method for removing iron scale of ferritic stainless steel

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895856A (en) * 1955-12-15 1959-07-21 United States Steel Corp Method of pickling chromium-containing steel tubes
JPS5096431A (en) * 1973-12-28 1975-07-31
SE439025B (en) * 1979-09-13 1985-05-28 Fagersta Ab SET TO REMOVE OXID LAYERS FROM THE SURFACE OF HOT ROLLED STAINLESS STEEL
JPS5681688A (en) * 1979-12-06 1981-07-03 Kawasaki Steel Corp Pickling method for hot rolled austenitic stainless steel plate
JPS5861283A (en) * 1981-10-05 1983-04-12 Sumitomo Metal Ind Ltd Descaling method for steel wire rod by pickling
JPS60152689A (en) * 1984-01-19 1985-08-10 Nippon Steel Corp Pickling method for preventing die galling of hot rolled steel sheet
JPS60243289A (en) * 1984-05-17 1985-12-03 Kobe Steel Ltd Pickling method
US5154774A (en) * 1985-09-19 1992-10-13 Ugine Aciers De Chatillon Et Gueugnon Process for acid pickling of stainless steel products
IT1255655B (en) * 1992-08-06 1995-11-09 STAINLESS STEEL PICKLING AND PASSIVATION PROCESS WITHOUT THE USE OF NITRIC ACID
JPH06320494A (en) * 1993-05-18 1994-11-22 Tokai Kikai Seisakusho:Kk Trimming processing device for wood hardboard and the like
DE4420718A1 (en) * 1994-06-15 1995-12-21 Gewerk Keramchemie Pickling strip or sheet material

Also Published As

Publication number Publication date
ATE204033T1 (en) 2001-08-15
DK0808919T3 (en) 2001-10-08
DE69705993D1 (en) 2001-09-13
BR9703228A (en) 1998-09-01
KR970074980A (en) 1997-12-10
EP0808919A1 (en) 1997-11-26
CA2205122A1 (en) 1997-11-24
CN1178262A (en) 1998-04-08
TW416996B (en) 2001-01-01
DE69705993T2 (en) 2002-04-04
CA2205122C (en) 2008-07-15
EP0808919B1 (en) 2001-08-08
KR100492841B1 (en) 2005-08-31
JP4032319B2 (en) 2008-01-16
AR007285A1 (en) 1999-10-27
MX9703809A (en) 1998-04-30
AU706523B2 (en) 1999-06-17
JPH1046373A (en) 1998-02-17
CN1177082C (en) 2004-11-24
AU2360197A (en) 1997-11-27

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