BR0307988A - Método para tratamento térmico de aço inoxidável - Google Patents
Método para tratamento térmico de aço inoxidávelInfo
- 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
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.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0200532-0 | 2002-02-22 | ||
SE0200532A SE521170C2 (sv) | 2002-02-22 | 2002-02-22 | Förfarande för värmebehandling av rostfritt stål |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE529299C2 (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 |
CA2989624C (en) | 2015-06-24 | 2021-10-26 | Novelis Inc. | Fast response heaters and associated control systems used in combination with metal treatment furnaces |
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)
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 |
-
2002
- 2002-02-22 SE SE0200532A patent/SE521170C2/sv not_active IP Right Cessation
-
2003
- 2003-02-17 DE DE60329826T patent/DE60329826D1/de not_active Expired - Lifetime
- 2003-02-17 WO PCT/SE2003/000259 patent/WO2003070992A1/en active Application Filing
- 2003-02-17 JP JP2003569883A patent/JP4636798B2/ja not_active Expired - Fee Related
- 2003-02-17 BR BRPI0307988-0A patent/BR0307988B1/pt not_active IP Right Cessation
- 2003-02-17 AT AT03705601T patent/ATE447047T1/de not_active IP Right Cessation
- 2003-02-17 EP EP03705601A patent/EP1481102B1/en not_active Expired - Lifetime
- 2003-02-17 AU AU2003206555A patent/AU2003206555A1/en not_active Abandoned
- 2003-02-17 ES ES03705601T patent/ES2335202T3/es not_active Expired - Lifetime
- 2003-02-17 KR KR1020047012805A patent/KR100988914B1/ko active IP Right Grant
- 2003-02-17 US US10/504,673 patent/US7625455B2/en active Active
-
2004
- 2004-08-17 ZA ZA2004/06539A patent/ZA200406539B/en unknown
Also Published As
Publication number | Publication date |
---|---|
JP2005517813A (ja) | 2005-06-16 |
EP1481102A1 (en) | 2004-12-01 |
SE0200532D0 (sv) | 2002-02-22 |
DE60329826D1 (de) | 2009-12-10 |
WO2003070992A1 (en) | 2003-08-28 |
SE521170C2 (sv) | 2003-10-07 |
ZA200406539B (en) | 2005-08-31 |
KR20040081801A (ko) | 2004-09-22 |
US20050115648A1 (en) | 2005-06-02 |
US7625455B2 (en) | 2009-12-01 |
AU2003206555A1 (en) | 2003-09-09 |
BR0307988B1 (pt) | 2011-08-23 |
JP4636798B2 (ja) | 2011-02-23 |
ES2335202T3 (es) | 2010-03-23 |
ATE447047T1 (de) | 2009-11-15 |
KR100988914B1 (ko) | 2010-10-20 |
SE0200532L (sv) | 2003-08-23 |
EP1481102B1 (en) | 2009-10-28 |
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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 |