ES8604660A1 - Metodo de control de la formacion de cascarilla de oxido y su descascarillado de articulos metalicos - Google Patents

Metodo de control de la formacion de cascarilla de oxido y su descascarillado de articulos metalicos

Info

Publication number
ES8604660A1
ES8604660A1 ES526242A ES526242A ES8604660A1 ES 8604660 A1 ES8604660 A1 ES 8604660A1 ES 526242 A ES526242 A ES 526242A ES 526242 A ES526242 A ES 526242A ES 8604660 A1 ES8604660 A1 ES 8604660A1
Authority
ES
Spain
Prior art keywords
oxide scale
article
metal articles
descaling
volume
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
Application number
ES526242A
Other languages
English (en)
Other versions
ES526242A0 (es
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.)
Allegheny Ludlum Steel Corp
Original Assignee
Allegheny Ludlum Steel Corp
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 Allegheny Ludlum Steel Corp filed Critical Allegheny Ludlum Steel Corp
Publication of ES526242A0 publication Critical patent/ES526242A0/es
Publication of ES8604660A1 publication Critical patent/ES8604660A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • C25F1/02—Pickling; Descaling
    • C25F1/04—Pickling; Descaling in solution
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • C25F1/02—Pickling; Descaling
    • C25F1/04—Pickling; Descaling in solution
    • C25F1/06—Iron or steel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

METODO DE CONTROL DE LA FORMACION DE CASCARILLA DE OXIDO Y SU DESCASCARILLADO DE ARTICULOS METALICOS. CONSISTE EN EL FORMADO EN CALIENTE, FORMADO EN FRIO Y TRATAMIENTO TERMICO SUBSIGUIENTE, EN UNA ATMOSFERA OXIDANTE, DEL ARTICULO METALICO, COMPRENDIENDO ADEMAS PROVEER A LA ATMOSFERA DE UN CONTENIDO DE OXIGENO DEL 3,0% EN VOLUMEN PARA CONTROLAR LA CASCARILLA DE OXIDO FORMADA SOBRE EL ARTICULO METALICO; SUMERGIR EL ARTICULO EN UN ELECTROLITO DE UNA SOLUCION ACUOSA DE UNA SAL NEUTRA DEL GRUPO CONSISTENTE EN CLORURO, SULFATO Y NITRATO DE UN METAL ALCALINO O AMONIO, AJUSTANDOSE Y MANTENIENDOSE EL PH DEL ELECTROLITO ENTRE 2,0 Y 3,5; HACER PASAR UNA CORRIENTE ELECTRICA DE BAJA DENSIDAD A TRAVES DEL ARTICULO SITUADO EN EL ELECTROLITO PARA ACONDICIONAR LA CASCARILLA PARA SU RETIRADA; Y RETIRAR EL ARTICULO DEL ELECTROLITO.
ES526242A 1982-11-24 1983-10-05 Metodo de control de la formacion de cascarilla de oxido y su descascarillado de articulos metalicos Expired ES8604660A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/444,128 US4415415A (en) 1982-11-24 1982-11-24 Method of controlling oxide scale formation and descaling thereof from metal articles

Publications (2)

Publication Number Publication Date
ES526242A0 ES526242A0 (es) 1986-02-01
ES8604660A1 true ES8604660A1 (es) 1986-02-01

Family

ID=23763620

Family Applications (2)

Application Number Title Priority Date Filing Date
ES526242A Expired ES8604660A1 (es) 1982-11-24 1983-10-05 Metodo de control de la formacion de cascarilla de oxido y su descascarillado de articulos metalicos
ES543218A Expired ES8608064A1 (es) 1982-11-24 1985-05-16 Proceso para retirar una cascarilla de oxido de la superfi- cie de un articulo metalico

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES543218A Expired ES8608064A1 (es) 1982-11-24 1985-05-16 Proceso para retirar una cascarilla de oxido de la superfi- cie de un articulo metalico

Country Status (9)

Country Link
US (1) US4415415A (es)
EP (1) EP0113500B1 (es)
JP (1) JPS5996300A (es)
KR (1) KR890001379B1 (es)
AT (1) AT381121B (es)
BR (1) BR8306015A (es)
CA (1) CA1217451A (es)
DE (1) DE3381642D1 (es)
ES (2) ES8604660A1 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387406B (de) * 1987-05-07 1989-01-25 Andritz Ag Maschf Verfahren zum elektrolytischen beizen von chromhaeltigem edelstahl
AT395601B (de) * 1990-07-27 1993-02-25 Andritz Ag Maschf Verfahren zum beizen von edelstahl
US5175026A (en) * 1991-07-16 1992-12-29 Wheeling-Nisshin, Inc. Method for hot-dip coating chromium-bearing steel
AT402737B (de) * 1992-04-29 1997-08-25 Andritz Patentverwaltung Verfahren zum diskontinuierlichen beizen von metallischen platten, insbesondere aus edelstahl
CN1055510C (zh) * 1993-06-25 2000-08-16 川崎制铁株式会社 高张力钢板的热浸镀锌方法
US5490908A (en) * 1994-07-11 1996-02-13 Allegheny Ludlum Corporation Annealing and descaling method for stainless steel
US5830291C1 (en) * 1996-04-19 2001-05-22 J & L Specialty Steel Inc Method for producing bright stainless steel
DE19618899A1 (de) * 1996-05-10 1997-11-13 Metallgesellschaft Ag Verfahren zum Entfernen von mit Seifen behafteten Konversionsschichten von metallischen Werkstücken
AT406486B (de) * 1998-12-22 2000-05-25 Andritz Patentverwaltung Verfahren zum beizen von edelstahl
US6582586B1 (en) * 1999-01-26 2003-06-24 Nippon Steel Corporation Method of removing scales and preventing scale formation on metal materials and apparatus therefor
ATE291101T1 (de) * 2001-04-26 2005-04-15 Air Liquide Verfahren zum verbessern der metallurgischen eigenschaften von im ofen behandelten produkten
KR101304602B1 (ko) * 2011-12-21 2013-09-05 주식회사 포스코 스케일의 박리성을 향상시키는 방법
DE102014111779A1 (de) * 2014-08-18 2016-02-18 Iva Industrieöfen Gmbh Verfahren zur Herstellung einer Retorte für einen Nitrierofen sowie Retorte

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1226856A (fr) * 1958-12-23 1960-08-16 Procédé de décapage des aciers alliés
US3254011A (en) * 1963-09-20 1966-05-31 Allegheny Ludlum Steel Electrolytic potassium hydroxide descaling
US3260619A (en) * 1965-02-04 1966-07-12 Kolene Corp Methods and compositions for cleaning metal
US4012299A (en) * 1976-04-01 1977-03-15 Allegheny Ludlum Industries, Inc. Metallic descaling system
US4066521A (en) * 1977-02-09 1978-01-03 Allegheny Ludlum Industries, Inc. Metallic descaling system
US4026777A (en) * 1976-04-01 1977-05-31 Allegheny Ludlum Industries, Inc. Metallic descaling system
DE2808399A1 (de) * 1978-02-27 1979-09-06 Uss Eng & Consult Verfahren zur oberflaechenkonditionierung von rostfreiem stahl
US4363709A (en) * 1981-02-27 1982-12-14 Allegheny Ludlum Steel Corporation High current density, acid-free electrolytic descaling process
JPS6047918B2 (ja) * 1981-03-29 1985-10-24 住友金属工業株式会社 鋼線材の電解脱スケ−ルにおける酸性電解法

Also Published As

Publication number Publication date
DE3381642D1 (de) 1990-07-19
ES526242A0 (es) 1986-02-01
AT381121B (de) 1986-08-25
KR840006832A (ko) 1984-12-03
BR8306015A (pt) 1984-07-10
ES8608064A1 (es) 1986-06-01
US4415415A (en) 1983-11-15
JPH0314920B2 (es) 1991-02-27
CA1217451A (en) 1987-02-03
JPS5996300A (ja) 1984-06-02
ATA347983A (de) 1986-01-15
EP0113500A2 (en) 1984-07-18
EP0113500B1 (en) 1990-06-13
ES543218A0 (es) 1986-06-01
EP0113500A3 (en) 1987-01-07
KR890001379B1 (ko) 1989-05-02

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