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BR9406985A - Process to produce steel in converter - Google Patents

Process to produce steel in converter

Info

Publication number
BR9406985A
BR9406985A BR9406985-9A BR9406985A BR9406985A BR 9406985 A BR9406985 A BR 9406985A BR 9406985 A BR9406985 A BR 9406985A BR 9406985 A BR9406985 A BR 9406985A
Authority
BR
Brazil
Prior art keywords
converter
produce steel
steel
produce
Prior art date
Application number
BR9406985-9A
Other languages
Portuguese (pt)
Inventor
Masataka Yano
Yuji Ogawa
Masayuki Arai
Tumio Koizmi
Noriyuki Masumitsu
Hideaki Sasaki
Hiroshi Hirata
Yoshiaki Kusano
Hirobumi Maede
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.)
Filing date
Publication date
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=BR9406985(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP16256493A external-priority patent/JP2958842B2/en
Priority claimed from JP32908693A external-priority patent/JP2896838B2/en
Priority claimed from JP32908893A external-priority patent/JP2958848B2/en
Priority claimed from JP01102794A external-priority patent/JP3239197B2/en
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of BR9406985A publication Critical patent/BR9406985A/en

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
    • 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)
BR9406985-9A 1993-06-30 1994-06-30 Process to produce steel in converter BR9406985A (en)

Applications Claiming Priority (6)

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

Publications (1)

Publication Number Publication Date
BR9406985A true BR9406985A (en) 1996-03-05

Family

ID=27519242

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9406985-9A BR9406985A (en) 1993-06-30 1994-06-30 Process to produce steel in converter

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 (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3854482B2 (en) * 2001-09-27 2006-12-06 新日本製鐵株式会社 Hot metal pretreatment method and refining method
JP3940280B2 (en) * 2001-09-27 2007-07-04 新日本製鐵株式会社 How to remove hot metal
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
US20070179161A1 (en) * 2003-03-31 2007-08-02 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 How to refine the 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
KR101701658B1 (en) * 2013-01-18 2017-02-01 제이에프이 스틸 가부시키가이샤 Method for pretreating molten iron
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
WO2017130837A1 (en) * 2016-01-28 2017-08-03 新日鐵住金株式会社 Slag removal method, slag production method, and structure for attenuating energy of falling 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
JP6551626B2 (en) * 2017-05-25 2019-07-31 Ｊｆｅスチール株式会社 Method of melting high manganese steel
CN109097523B (en) * 2018-08-31 2019-12-24 钢铁研究总院 A double slag method smelting process
JP7020601B1 (en) * 2020-09-10 2022-02-16 Ｊｆｅスチール株式会社 Manufacturing method of low phosphorus molten iron
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
CN119460521B (en) * 2024-11-05 2025-11-25 北京首钢股份有限公司 A feeding device and feeding method for a tank transfer station

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6823981A (en) * 1980-03-21 1981-10-15 Nippon Steel Corporation Multi-stage steel making
JPS58207314A (en) * 1982-05-28 1983-12-02 Sumitomo Metal Ind Ltd Refining method of steel
DE3316367A1 (en) * 1983-05-05 1984-11-08 Mannesmann AG, 4000 Düsseldorf METHOD AND DEVICE FOR PRODUCING STEEL
FR2558482B1 (en) * 1984-01-25 1989-10-27 Siderurgie Fse Inst Rech PROCESS FOR THE PREPARATION OF STEEL BY CAST IRON
JPH0472007A (en) * 1990-07-10 1992-03-06 Nippon Steel Corp Molten steel manufacturing method
JP2607328B2 (en) * 1992-03-04 1997-05-07 新日本製鐵株式会社 Hot metal dephosphorization method
JP2607329B2 (en) * 1992-03-04 1997-05-07 新日本製鐵株式会社 Hot metal dephosphorization method

Also Published As

Publication number Publication date
EP0714989A4 (en) 1997-06-25
ES2143547T3 (en) 2000-05-16
DE69423630D1 (en) 2000-04-27
CA2166097A1 (en) 1995-01-12
AU680268B2 (en) 1997-07-24
KR960703440A (en) 1996-08-17
DE69423630T2 (en) 2000-11-09
CA2166097C (en) 2002-01-15
AU7083194A (en) 1995-01-24
EP0714989B1 (en) 2000-03-22
KR0159180B1 (en) 1999-01-15
WO1995001458A1 (en) 1995-01-12
CN1041843C (en) 1999-01-27
EP0714989A1 (en) 1996-06-05
CN1128050A (en) 1996-07-31

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B16C Correction of notification of the grant

Free format text: REFERENTE A RPI 1544 DE 08/08/2000, QUANTO A DATA DE DEPOSITO

B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL AND SUMITOMO METAL CORPORATION (JP)

B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 30/06/2014