GB1198112A - Method and Apparatus for Making Steel - Google Patents

Method and Apparatus for Making Steel

Info

Publication number
GB1198112A
GB1198112A GB3469167A GB3469167A GB1198112A GB 1198112 A GB1198112 A GB 1198112A GB 3469167 A GB3469167 A GB 3469167A GB 3469167 A GB3469167 A GB 3469167A GB 1198112 A GB1198112 A GB 1198112A
Authority
GB
United Kingdom
Prior art keywords
oxygen
spindle
rate
constant
head
Prior art date
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.)
Expired
Application number
GB3469167A
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1198112A publication Critical patent/GB1198112A/en
Expired legal-status Critical Current

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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

1,198,112. Oxygen steelmaking. NIPPON KOKAN K.K. July 27, 1967 [July 27, 1966], No. 34691/67. Heading C7D. [Also in Division F4] The throat area of a water-cooled lance for use in steel making is made variable by means of the tapered head 14 of a spindle 13 which is axially movable in the oxygen passage. Vibration of the spindle is prevented by a spindle holder 15. The taper may be in either direction, Figs. 4, 5 (not shown), allowing a ring shaped fire spot in the case of a divergent taper. The head is fixed by a screw head to the spindle 13. If oxygen is supplied to the lance at a constant supersonic flow-rate, the oxygen pressure may be varied merely by varying the cross-sectional area of nozzle. Conversely the oxygen pressure may be maintained constant by varying the nozzle area as the supersonic flow-rate is altered. These methods of control are used in the steel making process described first to supply oxygen at a constant rate and thereafter towards the end of the process to increase the oxygen supply pressure without a corresponding increase in flow-rate. This results in a reduction in the residual impurity content of carbon, nitrogen, and in an avoidance of superoxidation.
GB3469167A 1966-07-27 1967-07-27 Method and Apparatus for Making Steel Expired GB1198112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4878366 1966-07-27

Publications (1)

Publication Number Publication Date
GB1198112A true GB1198112A (en) 1970-07-08

Family

ID=12812832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3469167A Expired GB1198112A (en) 1966-07-27 1967-07-27 Method and Apparatus for Making Steel

Country Status (7)

Country Link
AT (1) AT294874B (en)
BE (1) BE701890A (en)
ES (1) ES343510A1 (en)
GB (1) GB1198112A (en)
LU (1) LU54188A1 (en)
NL (1) NL6710354A (en)
SE (1) SE339697B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235621A2 (en) * 1986-02-25 1987-09-09 Arbed S.A. Lance for blowing oxygen
WO1995018346A1 (en) * 1993-12-30 1995-07-06 Mefos, Stiftelsen För Metallurgisk Forskning Nozzle and method of blowing hot metal
WO2004018714A1 (en) * 2002-08-21 2004-03-04 Voest-Alpine Industrieanlagenbau Gmbh & Co Methods and device for decarbonising a steel melt
WO2011120937A3 (en) * 2010-03-31 2012-02-16 Sms Siemag Ag Device for injecting gas into a metallurgical vessel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU87353A1 (en) * 1988-09-28 1990-04-06 Arbed OXYGEN BLOWING LANCE

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235621A2 (en) * 1986-02-25 1987-09-09 Arbed S.A. Lance for blowing oxygen
EP0235621A3 (en) * 1986-02-25 1989-03-15 Arbed S.A. Lance for blowing oxygen
WO1995018346A1 (en) * 1993-12-30 1995-07-06 Mefos, Stiftelsen För Metallurgisk Forskning Nozzle and method of blowing hot metal
US5746970A (en) * 1993-12-30 1998-05-05 Mefos, Stiftelsen For Metallurgisk Forskning Nozzle and method of blowing hot metal
WO2004018714A1 (en) * 2002-08-21 2004-03-04 Voest-Alpine Industrieanlagenbau Gmbh & Co Methods and device for decarbonising a steel melt
WO2011120937A3 (en) * 2010-03-31 2012-02-16 Sms Siemag Ag Device for injecting gas into a metallurgical vessel
CN102884207A (en) * 2010-03-31 2013-01-16 Sms西马格股份公司 Vice for injecting gas into a metallurgical vessel
US20130106034A1 (en) * 2010-03-31 2013-05-02 Sms Siemag Aktiengesellschaft Device for injecting gas into a metallurgical vessel
CN102884207B (en) * 2010-03-31 2014-07-09 Sms西马格股份公司 Vice for injecting gas into a metallurgical vessel
KR101495622B1 (en) * 2010-03-31 2015-02-25 에스엠에스 지마크 악티엔게젤샤프트 Device for injecting gas into a metallurgical vessel
US9103503B2 (en) * 2010-03-31 2015-08-11 Sms Siemag Ag Device for injecting gas into a metallurgical vessel

Also Published As

Publication number Publication date
AT294874B (en) 1971-12-10
SE339697B (en) 1971-10-18
LU54188A1 (en) 1967-10-03
ES343510A1 (en) 1968-07-16
BE701890A (en) 1968-01-02
NL6710354A (en) 1968-01-29

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees