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BR0307988A - Método para tratamento térmico de aço inoxidável - Google Patents

Método para tratamento térmico de aço inoxidável

Info

Publication number
BR0307988A
BR0307988A BR0307988-0A BR0307988A BR0307988A BR 0307988 A BR0307988 A BR 0307988A BR 0307988 A BR0307988 A BR 0307988A BR 0307988 A BR0307988 A BR 0307988A
Authority
BR
Brazil
Prior art keywords
stainless steel
heat treatment
preheating stage
stage
burners
Prior art date
Application number
BR0307988-0A
Other languages
English (en)
Other versions
BR0307988B1 (pt
Inventor
Carl-Lennart Axelsson
Tomas Ekman
Ola Ritzen
Original Assignee
Linde 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.)
Filing date
Publication date
Application filed by Linde Ag filed Critical Linde Ag
Publication of BR0307988A publication Critical patent/BR0307988A/pt
Publication of BR0307988B1 publication Critical patent/BR0307988B1/pt

Links

Classifications

    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • 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
    • C21D1/34—Methods of heating
    • C21D1/52—Methods of heating with flames
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

"MéTODO PARA TRATAMENTO TéRMICO DE AçO INOXIDáVEL". Um método para tratamento térmico de aço inoxidável na forma de esboços, tubulação, encanamento, material como tira ou fio, tal como tira, folha, fio ou barras após laminar o citado material em um forno de tratamento térmico em uma temperatura mais alta que cerca de 900<198>C. A invenção é caracterizada em que ela inclui um estágio de pré-aquecimento (1) e um estágio de aquecimento final (2), sendo que no estágio de pré-aquecimento chamas (5) de queimadores (4) são direcionadas contra a superfície do material (6 ) de modo a atingir a superfície do material (6); em que queimadores (4) situados no estágio de pré-aquecimento são acionados por um combustível líquido ou gasoso que é levado a queimar com o auxílio de um gás oxidante que contém oxigênio gasoso; em que o material (6) é mantido no estágio de pré-aquecimento (1) o tempo suficiente para obter pelo menos algum grau de oxidação na superfície do material (6) ; e em que o material (6) é aquecido adicionalmente em um estágio de aquecimento final seguinte (2) por meio de queimadores situados em um forno os quais são acionados por um combustível líquido ou gasoso e um gás oxidante.
BRPI0307988-0A 2002-02-22 2003-02-17 método para tratamento térmico de aço inoxidável. BR0307988B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0200532A SE521170C2 (sv) 2002-02-22 2002-02-22 Förfarande för värmebehandling av rostfritt stål
SE0200532-0 2002-02-22
PCT/SE2003/000259 WO2003070992A1 (en) 2002-02-22 2003-02-17 Method of heat treatment of stainless steel.

Publications (2)

Publication Number Publication Date
BR0307988A true BR0307988A (pt) 2005-02-01
BR0307988B1 BR0307988B1 (pt) 2011-08-23

Family

ID=20287054

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0307988-0A BR0307988B1 (pt) 2002-02-22 2003-02-17 método para tratamento térmico de aço inoxidável.

Country Status (12)

Country Link
US (1) US7625455B2 (pt)
EP (1) EP1481102B1 (pt)
JP (1) JP4636798B2 (pt)
KR (1) KR100988914B1 (pt)
AT (1) ATE447047T1 (pt)
AU (1) AU2003206555A1 (pt)
BR (1) BR0307988B1 (pt)
DE (1) DE60329826D1 (pt)
ES (1) ES2335202T3 (pt)
SE (1) SE521170C2 (pt)
WO (1) WO2003070992A1 (pt)
ZA (1) ZA200406539B (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0502913L (sv) * 2005-12-27 2007-06-26 Aga Ab Förfarande för att justera hårdheten hos en skivliknande metallprodukt
DE102006005063A1 (de) * 2006-02-03 2007-08-09 Linde Ag Verfahren zur Wärmebehandlung von Stahlbändern
SE531990C2 (sv) * 2007-01-29 2009-09-22 Aga Ab Förfarande för värmebehandling av långa stålprodukter
BR112017027680B1 (pt) 2015-06-24 2022-01-25 Novelis Inc Sistema e método para tratamento de metal
CN115058582B (zh) * 2022-07-14 2024-06-11 上海曙佳科技发展有限公司 一种连退炉炉内可视化及工件温度管理方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61257430A (ja) * 1985-05-11 1986-11-14 Nisshin Steel Co Ltd 鋼帯の連続加熱方法および設備
JP3048012B2 (ja) * 1991-07-10 2000-06-05 日新製鋼株式会社 ステンレス鋼帯表面の黒色化処理方法及び黒色化処理炉
SE9400807D0 (sv) * 1994-03-09 1994-03-09 Aga Ab Behandling av stål
FR2785668B1 (fr) * 1998-11-10 2001-02-23 Air Liquide Procede de chauffage d'un four a chargement continu notamment pour produits siderurgiques, et four de chauffage a chargement continu
FR2813893B1 (fr) * 2000-09-08 2003-03-21 Air Liquide Procede de rechauffage de produits metallurgiques

Also Published As

Publication number Publication date
AU2003206555A1 (en) 2003-09-09
ZA200406539B (en) 2005-08-31
KR20040081801A (ko) 2004-09-22
SE521170C2 (sv) 2003-10-07
EP1481102A1 (en) 2004-12-01
SE0200532L (sv) 2003-08-23
WO2003070992A1 (en) 2003-08-28
EP1481102B1 (en) 2009-10-28
US20050115648A1 (en) 2005-06-02
ATE447047T1 (de) 2009-11-15
SE0200532D0 (sv) 2002-02-22
JP2005517813A (ja) 2005-06-16
KR100988914B1 (ko) 2010-10-20
DE60329826D1 (de) 2009-12-10
ES2335202T3 (es) 2010-03-23
BR0307988B1 (pt) 2011-08-23
US7625455B2 (en) 2009-12-01
JP4636798B2 (ja) 2011-02-23

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 17/02/2003, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 17A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: REFERENTE AO DESPACHO 21.6 PUBLICADO NA RPI 2553 DE 2019-12-10