MX9500226A - Metodo para hacer acero con alto contenido de nitrogeno. - Google Patents

Metodo para hacer acero con alto contenido de nitrogeno.

Info

Publication number
MX9500226A
MX9500226A MX9500226A MX9500226A MX9500226A MX 9500226 A MX9500226 A MX 9500226A MX 9500226 A MX9500226 A MX 9500226A MX 9500226 A MX9500226 A MX 9500226A MX 9500226 A MX9500226 A MX 9500226A
Authority
MX
Mexico
Prior art keywords
metal
making high
high nitrogen
molten
nitrogen content
Prior art date
Application number
MX9500226A
Other languages
English (en)
Inventor
Richard R Watkins
Robert Blossey
Gregory Wotell
Original Assignee
Ltv Steel Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22641406&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX9500226(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ltv Steel Co Inc filed Critical Ltv Steel Co Inc
Publication of MX9500226A publication Critical patent/MX9500226A/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
    • C21C2007/0062—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires with introduction of alloying or treating agents under a compacted form different from a wire, e.g. briquette, pellet

Abstract

La presente invencion se refiere a un método para hacer acero con alto contenido de nitrogeno a partir de una carga que comprende una cantidad de metal ferroso fundido, dicho método comprendiendo: a) soplar oxígeno gaseoso en el metal ferroso fundido para reducir el contenido de carbono de dicho metal ferroso; b) soplar una primera proporcion de nitrogeno gaseoso en dicho metal fundido; c) introducir por lo menos una porcion de dicho metal fundido en un ambiente de baja presion para reducir adicionalmente el contenido de carbono de dicho metal y, mientras está ahí; d) introducir una segunda proporcion de nitrogeno gaseoso en el metal fundido.
MX9500226A 1993-12-30 1995-01-02 Metodo para hacer acero con alto contenido de nitrogeno. MX9500226A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/175,730 US5417739A (en) 1993-12-30 1993-12-30 Method of making high nitrogen content steel

Publications (1)

Publication Number Publication Date
MX9500226A true MX9500226A (es) 1997-04-30

Family

ID=22641406

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9500226A MX9500226A (es) 1993-12-30 1995-01-02 Metodo para hacer acero con alto contenido de nitrogeno.

Country Status (7)

Country Link
US (1) US5417739A (es)
EP (1) EP0663449B1 (es)
JP (1) JPH07216439A (es)
KR (1) KR950018514A (es)
CA (1) CA2137102C (es)
DE (1) DE69426921T2 (es)
MX (1) MX9500226A (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5865876A (en) * 1995-06-07 1999-02-02 Ltv Steel Company, Inc. Multipurpose lance
US5830259A (en) * 1996-06-25 1998-11-03 Ltv Steel Company, Inc. Preventing skull accumulation on a steelmaking lance
US5885323A (en) * 1997-04-25 1999-03-23 Ltv Steel Company, Inc. Foamy slag process using multi-circuit lance
WO2002048409A1 (fr) * 2000-12-13 2002-06-20 Kawasaki Steel Corporation Procede servant a fabriquer un acier possedant une teneur elevee en azote et extremement basse en carbone
CZ298889B6 (cs) * 2004-07-23 2008-03-05 Trinecké železárny a. s. Zpusob výroby ocelí s garantovaným obsahem dusíku
JP5003409B2 (ja) * 2007-10-24 2012-08-15 住友金属工業株式会社 高窒素鋼の溶製方法
CN102634643B (zh) * 2012-04-10 2013-08-14 河北省首钢迁安钢铁有限责任公司 一种高磁导率级取向电工钢带氮含量的控制方法
JP6108828B2 (ja) * 2012-12-28 2017-04-05 株式会社神戸製鋼所 高窒素鋼の製造方法
CN103911490B (zh) * 2014-04-04 2015-08-26 首钢总公司 超低碳搪瓷钢钢水增氮的方法
CN110317919B (zh) * 2018-03-30 2021-05-07 上海梅山钢铁股份有限公司 一种低碳搪瓷钢的低成本生产方法
CN113549847A (zh) * 2021-07-27 2021-10-26 广东昌华海利科技有限公司 一种高氮高强度不锈钢及其制备工艺

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US3320053A (en) * 1964-09-25 1967-05-16 Bethlehem Steel Corp Method of injecting gases into steel melts
US3417463A (en) * 1965-07-09 1968-12-24 Maximilianshuette Eisenwerk Method of producing steel for sheets to be enamelled by the single-coat method
NL152602B (nl) * 1968-05-09 1977-03-15 Nippon Kokan Kk Werkwijze voor het continu bereiden van staal.
US3594155A (en) * 1968-10-30 1971-07-20 Allegheny Ludlum Steel Method for dynamically controlling decarburization of steel
US3932172A (en) * 1969-02-20 1976-01-13 Eisenwerk-Gesellschaft Maximilianshutte Mbh Method and converter for refining pig-iron into steel
US3700429A (en) * 1970-01-05 1972-10-24 Allegheny Ludlum Steel Method of controlling vacuum decarburization
US3955964A (en) * 1971-08-30 1976-05-11 Koppers Company, Inc. Process for making steel
DE2237498B2 (de) * 1972-07-31 1974-07-25 Stahlwerke Peine-Salzgitter Ag, 3150 Peine Verfahren zum Aufsticken von Stahlschmelzen
AT337736B (de) * 1973-02-12 1977-07-11 Voest Ag Verfahren zum frischen von roheisen
US3861888A (en) * 1973-06-28 1975-01-21 Union Carbide Corp Use of CO{HD 2 {B in argon-oxygen refining of molten metal
JPS5414568B2 (es) * 1973-08-28 1979-06-08
JPS5112320A (ja) * 1974-07-22 1976-01-30 Nisshin Steel Co Ltd Ganchitsusogokinkono seizoho
US4004920A (en) * 1975-05-05 1977-01-25 United States Steel Corporation Method of producing low nitrogen steel
US4081270A (en) * 1977-04-11 1978-03-28 Union Carbide Corporation Renitrogenation of basic-oxygen steels during decarburization
US4490172A (en) * 1979-06-29 1984-12-25 Moore William H Method of melting and refining steel and other ferrous alloys
US4348229A (en) * 1980-08-22 1982-09-07 Nippon Steel Corporation Enamelling steel sheet
US4564390A (en) * 1984-12-21 1986-01-14 Olin Corporation Decarburizing a metal or metal alloy melt
US4615730A (en) * 1985-04-30 1986-10-07 Allegheny Ludlum Steel Corporation Method for refining molten metal bath to control nitrogen
SU1395682A1 (ru) * 1986-11-04 1988-05-15 Донецкий политехнический институт Способ внепечной обработки стали при получении заготовок непрерывной разливкой
JPS6428319A (en) * 1987-07-24 1989-01-30 Nippon Kokan Kk Production of nitrogen-containing steel
JPH0717960B2 (ja) * 1989-03-31 1995-03-01 新日本製鐵株式会社 磁気特性の優れた一方向性電磁鋼板の製造方法
JP2782086B2 (ja) * 1989-05-29 1998-07-30 新日本製鐵株式会社 磁気特性、皮膜特性ともに優れた一方向性電磁鋼板の製造方法
US5062905A (en) * 1989-08-18 1991-11-05 Nippon Steel Corporation Method of producing non-oriented magnetic steel plate having high magnetic flux density
IT1237481B (it) * 1989-12-22 1993-06-07 Sviluppo Materiali Spa Procedimento per la prodizione di lamierino magnetico semifinito a grano non orientato.
JPH05239596A (ja) * 1992-02-28 1993-09-17 Nkk Corp 耐黒点性に優れた直接１回掛ほうろう用鋼材およびその製造方法

Also Published As

Publication number Publication date
US5417739A (en) 1995-05-23
CA2137102A1 (en) 1995-07-01
DE69426921T2 (de) 2001-08-02
CA2137102C (en) 2005-02-08
JPH07216439A (ja) 1995-08-15
DE69426921D1 (de) 2001-04-26
EP0663449B1 (en) 2001-03-21
KR950018514A (ko) 1995-07-22
EP0663449A1 (en) 1995-07-19

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