EP0714989A4 - Steel manufacturing method using converter - Google Patents

Steel manufacturing method using converter

Info

Publication number: EP0714989A4
Authority: EP; European Patent Office
Prior art keywords: converter; steel manufacturing; steel; manufacturing
Prior art date: 1993-06-30
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.): Granted

Application number

EP94919835A

Other languages

German (de)

French (fr)

Other versions

EP0714989B1 (en

EP0714989A1 (en

Inventor

Masataka Yano

Yuji Ogawa

Masayuki Arai

Fumio Koizumi

Noriyuki Masumitsu

Hideaki Sasaki

Hiroshi Hirata

Yoshiaki Kusano

Hirobumi Maede

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.)

Nippon Steel Corp

Original Assignee

Nippon 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.)

1993-06-30

Filing date

1994-06-30

Publication date

1997-06-25

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27519242&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0714989(A4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1993-06-30 Priority claimed from JP16256493A external-priority patent/JP2958842B2/en

1993-12-24 Priority claimed from JP32908893A external-priority patent/JP2958848B2/en

1993-12-24 Priority claimed from JP32908693A external-priority patent/JP2896838B2/en

1994-02-02 Priority claimed from JP01102794A external-priority patent/JP3239197B2/en

1994-06-30 Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp

1996-06-05 Publication of EP0714989A1 publication Critical patent/EP0714989A1/en

1997-06-25 Publication of EP0714989A4 publication Critical patent/EP0714989A4/en

2000-03-22 Application granted granted Critical

2000-03-22 Publication of EP0714989B1 publication Critical patent/EP0714989B1/en

2014-06-30 Anticipated expiration legal-status Critical

Status Revoked legal-status Critical Current

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
- 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
- C21C5/34—Blowing through the bath
- 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
- C21C5/35—Blowing from above and through the bath
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
- 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
- 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
- C21C5/56—Manufacture of steel by other methods
- C21C5/567—Manufacture of steel by other methods operating in a continuous way
- 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
- C21C7/064—Dephosphorising; Desulfurising
- 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
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0075—Regulation of the charge quantity
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0078—Regulation of the speed of the gas through the charge
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
- F27D2027/002—Gas stirring

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Carbon Steel Or Casting Steel Manufacturing (AREA)
Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

EP94919835A 1993-06-30 1994-06-30 Steel manufacturing method using converter dephosphorisation Revoked EP0714989B1 (en)

Applications Claiming Priority (16)

Application Number	Priority Date	Filing Date	Title
JP162564/93		1993-06-30
JP16256493		1993-06-30
JP16256493A JP2958842B2 (en)	1993-06-30	1993-06-30	Converter refining method
JP16579093		1993-07-05
JP165790/93		1993-07-05
JP16579093		1993-07-05
JP32908693		1993-12-24
JP329086/93		1993-12-24
JP329088/93		1993-12-24
JP32908893A JP2958848B2 (en)	1993-12-24	1993-12-24	Hot metal dephosphorization method
JP32908693A JP2896838B2 (en)	1993-12-24	1993-12-24	Molten steel manufacturing method
JP32908893		1993-12-24
JP11027/94		1994-02-02
JP01102794A JP3239197B2 (en)	1993-07-05	1994-02-02	Converter steelmaking method
JP1102794		1994-02-02
PCT/JP1994/001070 WO1995001458A1 (en)	1993-06-30	1994-06-30	Steel manufacturing method using converter

Publications (3)

Publication Number	Publication Date
EP0714989A1 EP0714989A1 (en)	1996-06-05
EP0714989A4 true EP0714989A4 (en)	1997-06-25
EP0714989B1 EP0714989B1 (en)	2000-03-22

Family

ID=27519242

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP94919835A Revoked EP0714989B1 (en)	1993-06-30	1994-06-30	Steel manufacturing method using converter dephosphorisation

Country Status (9)

Country	Link
EP (1)	EP0714989B1 (en)
KR (1)	KR0159180B1 (en)
CN (1)	CN1041843C (en)
AU (1)	AU680268B2 (en)
BR (1)	BR9406985A (en)
CA (1)	CA2166097C (en)
DE (1)	DE69423630T2 (en)
ES (1)	ES2143547T3 (en)
WO (1)	WO1995001458A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3940280B2 (en) *	2001-09-27	2007-07-04	新日本製鐵株式会社	How to remove hot metal
JP3854482B2 (en) *	2001-09-27	2006-12-06	新日本製鐵株式会社	Hot metal pretreatment method and refining method
DE10215828B4 (en) *	2002-04-10	2007-08-02	Sms Demag Ag	Method and device for producing stainless steel, in particular chromium- or chromium-nickel-containing stainless steel
DE10215839A1 (en) *	2002-04-10	2003-11-06	Sms Demag Ag	Method and device for producing carbon steels or stainless steels by refining phosphorus-rich pig iron in an electric arc furnace or in a converter vessel
EP1608652A1 (en) *	2003-03-31	2005-12-28	Vernalis (Cambridge) Limited	Pyrazolopyrimidine compounds and their use in medicine
EP1524322A3 (en) *	2003-10-15	2006-08-02	Milan Adelt	Method of liquid steel production with slag recycling in a converter, equipment to employ the method
KR100749023B1 (en) *	2006-05-26	2007-08-14	주식회사 포스코	Method for refining extra low phosphorous steel in converter
CN101864508B (en) *	2010-07-02	2012-10-24	张觉灵	Steel making method of convertor with small slag quantity
CN102071277B (en) *	2010-12-23	2012-10-24	攀钢集团钢铁钒钛股份有限公司	Converter dephosphorizing and steelmaking method
CN102168160B (en) *	2011-03-08	2013-04-17	武汉钢铁(集团)公司	Converter steelmaking technology for directly reducing-alloying manganese ore
JP5979017B2 (en) *	2012-01-19	2016-08-24	Ｊｆｅスチール株式会社	Hot metal refining method
WO2014112521A1 (en) *	2013-01-18	2014-07-24	Ｊｆｅスチール株式会社	Molten iron pre-treatment method
CN104451022B (en) *	2014-12-19	2016-03-16	山东钢铁股份有限公司	A kind of method reducing dephosphorization stove finishing slag all iron content
KR101660774B1 (en)	2015-07-09	2016-09-28	주식회사 포스코	The converter operation method
CN107849626B (en) *	2016-01-28	2020-02-21	日本制铁株式会社	Slag discharging method, method for manufacturing slag, and energy attenuation structure of flowing-down slag
CN108779506B (en) *	2016-07-14	2023-07-25	日本制铁株式会社	Method for estimating phosphorus concentration in molten steel and converter blowing control device
CN106282487B (en) *	2016-09-13	2019-03-29	北京北科中钢工程技术有限公司	A kind of pre-dephosporizing method for molten iron
KR102315999B1 (en) *	2017-05-25	2021-10-21	제이에프이 스틸 가부시키가이샤	A method for refining a high manganese steel and amanufacturing of a high manganese steel
CN109097523B (en) *	2018-08-31	2019-12-24	钢铁研究总院	Double-slag smelting process
CN114438276B (en) *	2022-02-11	2022-08-09	山东钢铁集团永锋临港有限公司	Method for shortening smelting period of converter
CN114647220A (en) *	2022-03-15	2022-06-21	山东钢铁集团永锋临港有限公司	Automatic control method for converter smelting

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2072221A (en) *	1980-03-21	1981-09-30	Nippon Steel Corp	Steelmaking process with separate refining steps
GB2122649A (en) *	1982-05-28	1984-01-18	Sumitomo Metal Ind	Production of ultra-low phosphorous steel
EP0124890A1 (en) *	1983-05-05	1984-11-14	MANNESMANN Aktiengesellschaft	Process and installation for producing steel
FR2558482A1 (en) *	1984-01-25	1985-07-26	Siderurgie Fse Inst Rech	Process for the production of steel by prerefining pig iron
JPH0472007A (en) *	1990-07-10	1992-03-06	Nippon Steel Corp	Production of molten steel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2607329B2 (en) *	1992-03-04	1997-05-07	新日本製鐵株式会社	Hot metal dephosphorization method
JP2607328B2 (en) *	1992-03-04	1997-05-07	新日本製鐵株式会社	Hot metal dephosphorization method

1994
- 1994-06-30 KR KR1019950705930A patent/KR0159180B1/en not_active IP Right Cessation
- 1994-06-30 WO PCT/JP1994/001070 patent/WO1995001458A1/en not_active Application Discontinuation
- 1994-06-30 BR BR9406985-9A patent/BR9406985A/en not_active IP Right Cessation
- 1994-06-30 CN CN94192953A patent/CN1041843C/en not_active Expired - Lifetime
- 1994-06-30 ES ES94919835T patent/ES2143547T3/en not_active Expired - Lifetime
- 1994-06-30 AU AU70831/94A patent/AU680268B2/en not_active Expired
- 1994-06-30 EP EP94919835A patent/EP0714989B1/en not_active Revoked
- 1994-06-30 CA CA002166097A patent/CA2166097C/en not_active Expired - Lifetime
- 1994-06-30 DE DE69423630T patent/DE69423630T2/en not_active Revoked

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2072221A (en) *	1980-03-21	1981-09-30	Nippon Steel Corp	Steelmaking process with separate refining steps
GB2122649A (en) *	1982-05-28	1984-01-18	Sumitomo Metal Ind	Production of ultra-low phosphorous steel
EP0124890A1 (en) *	1983-05-05	1984-11-14	MANNESMANN Aktiengesellschaft	Process and installation for producing steel
FR2558482A1 (en) *	1984-01-25	1985-07-26	Siderurgie Fse Inst Rech	Process for the production of steel by prerefining pig iron
JPH0472007A (en) *	1990-07-10	1992-03-06	Nippon Steel Corp	Production of molten steel

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 277 (C - 0954) 22 June 1992 (1992-06-22) *
See also references of WO9501458A1 *

Also Published As

Publication number	Publication date
CN1041843C (en)	1999-01-27
DE69423630D1 (en)	2000-04-27
WO1995001458A1 (en)	1995-01-12
KR960703440A (en)	1996-08-17
KR0159180B1 (en)	1999-01-15
AU680268B2 (en)	1997-07-24
CA2166097C (en)	2002-01-15
AU7083194A (en)	1995-01-24
ES2143547T3 (en)	2000-05-16
EP0714989B1 (en)	2000-03-22
EP0714989A1 (en)	1996-06-05
DE69423630T2 (en)	2000-11-09
CA2166097A1 (en)	1995-01-12
CN1128050A (en)	1996-07-31
BR9406985A (en)	1996-03-05

Publication	Publication Date	Title
EP0714989A4 (en)	1997-06-25	Steel manufacturing method using converter
GB2281047B (en)	1996-10-30	Structural member and method for forming the same
ZA933641B (en)	1993-12-21	Method for producing steel
PL310887A1 (en)	1996-01-08	Proncovertin purification method
GB2291027B (en)	1997-09-24	A steel fabrication system
GB9305142D0 (en)	1993-04-28	Method
GB2281527B (en)	1997-12-10	Cold forming method
GB9306292D0 (en)	1993-05-19	Method
GB9304026D0 (en)	1993-04-14	Eyespot method
GB9323819D0 (en)	1994-01-05	Anlytical method
GB9425873D0 (en)	1995-02-22	Metal structures
EP0736341A4 (en)	1998-09-30	H-steel manufacturing method
HU9701308D0 (en)	1997-09-29	Cast-structured rapid steel made by carbide-implant method
IL108761A0 (en)	1994-05-30	A method for the manufacture of a chain
GB9321930D0 (en)	1993-12-15	Method
GB9312936D0 (en)	1993-08-04	Method
GB9301636D0 (en)	1993-03-17	Method
GB9319051D0 (en)	1993-11-03	Method
GB9323939D0 (en)	1994-01-05	Method
GB9325547D0 (en)	1994-02-16	Pesticidial method
GB9326298D0 (en)	1994-02-23	Connection method
GB9315378D0 (en)	1993-09-08	Manufacturing method
GB9313923D0 (en)	1993-08-18	Rapid hybridisation method
GB9415477D0 (en)	1994-09-21	Construction method
GB9324573D0 (en)	1994-01-19	Joining method

Legal Events

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1996-04-19	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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