AU550957B2 - Desulphurisation of and removal of oxide inclusions from molten steel with calcium metal - Google Patents

Desulphurisation of and removal of oxide inclusions from molten steel with calcium metal

Info

Publication number
AU550957B2
AU550957B2 AU31783/84A AU3178384A AU550957B2 AU 550957 B2 AU550957 B2 AU 550957B2 AU 31783/84 A AU31783/84 A AU 31783/84A AU 3178384 A AU3178384 A AU 3178384A AU 550957 B2 AU550957 B2 AU 550957B2
Authority
AU
Australia
Prior art keywords
desulphurisation
removal
molten steel
oxide inclusions
calcium metal
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
AU31783/84A
Other versions
AU3178384A (en
Inventor
Joseph Gerard Kaiser
Emil Joseph Wirth
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.)
Minerals Technologies Inc
Original Assignee
Pfizer 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
Priority claimed from US06/522,754 external-priority patent/US4481032A/en
Priority claimed from US06/522,753 external-priority patent/US4512800A/en
Application filed by Pfizer Inc filed Critical Pfizer Inc
Publication of AU3178384A publication Critical patent/AU3178384A/en
Application granted granted Critical
Publication of AU550957B2 publication Critical patent/AU550957B2/en
Assigned to MINERALS TECHNOLOGIES INC. reassignment MINERALS TECHNOLOGIES INC. Alteration of Name(s) in Register under S187 Assignors: PFIZER INC.
Anticipated expiration legal-status Critical
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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/10—Making spheroidal graphite cast-iron
    • 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
    • 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
    • C21C7/06—Deoxidising, e.g. killing
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
AU31783/84A 1983-08-12 1984-08-10 Desulphurisation of and removal of oxide inclusions from molten steel with calcium metal Expired AU550957B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/522,754 US4481032A (en) 1983-08-12 1983-08-12 Process for adding calcium to a bath of molten ferrous material
US06/522,753 US4512800A (en) 1983-08-12 1983-08-12 Wire injection apparatus
US522754 1983-08-12
US522753 1983-08-12

Publications (2)

Publication Number Publication Date
AU3178384A AU3178384A (en) 1985-02-14
AU550957B2 true AU550957B2 (en) 1986-04-10

Family

ID=27060927

Family Applications (1)

Application Number Title Priority Date Filing Date
AU31783/84A Expired AU550957B2 (en) 1983-08-12 1984-08-10 Desulphurisation of and removal of oxide inclusions from molten steel with calcium metal

Country Status (8)

Country Link
EP (1) EP0137618B1 (en)
JP (1) JPH0347909A (en)
KR (1) KR880000468B1 (en)
AU (1) AU550957B2 (en)
BR (1) BR8404033A (en)
DE (1) DE3472274D1 (en)
DK (1) DK386284A (en)
ES (3) ES8700330A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU573656B2 (en) * 1983-11-08 1988-06-16 Bindomatic Ab A paper block or pad and a method of producing it
AU586132B2 (en) * 1986-11-28 1989-06-29 Minerals Technologies Inc. Wire injection nozzle
AU587228B2 (en) * 1985-01-24 1989-08-10 Vallourec Treatment of liquid steel with calcium cored wire

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2764905B1 (en) * 1997-06-23 1999-07-23 Pechiney Electrometallurgie PROCESS FOR TREATING MOLTEN LEAD WITH CALCIUM AND CALCIUM-BASED WIRE FOR SUCH TREATMENT
RU2152834C1 (en) * 1999-12-06 2000-07-20 Неретин Александр Алексеевич Method for making calcium wire
FR2871477B1 (en) 2004-06-10 2006-09-29 Affival Sa Sa WIRE FOURRE
US8221677B2 (en) * 2007-04-02 2012-07-17 Specialty Minerals (Michigan) Inc. Wire injection lance nozzle insert

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577837A (en) * 1949-10-29 1951-12-11 Lothar R Zifferer Introduction of magnesium into molten iron
FR2008407A1 (en) * 1968-05-13 1970-01-23 Nippon Kokan Kk
US3778250A (en) * 1969-02-26 1973-12-11 Jones & Laughlin Steel Corp Method for treating metallic melts
JPS4936086B1 (en) * 1969-03-07 1974-09-27
BE795333A (en) * 1972-03-01 1973-05-29 Thyssen Niederrhein Ag DESULFURATION PROCESS FOR FUSION STEEL AND POCKET FOR ITS IMPLEMENTATION
DE2607947C2 (en) * 1976-02-27 1985-03-14 Fried. Krupp Gmbh, 4300 Essen Loading device
DE2634282C2 (en) * 1976-07-28 1978-04-13 Mannesmann Ag, 4000 Duesseldorf Process for the continuous introduction of additives into a vessel filled with liquid metal
US4094666A (en) * 1977-05-24 1978-06-13 Metal Research Corporation Method for refining molten iron and steels
JPS5713115A (en) * 1980-06-26 1982-01-23 Komatsu Ltd Production of tough and strong free-cutting ca cast steel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU573656B2 (en) * 1983-11-08 1988-06-16 Bindomatic Ab A paper block or pad and a method of producing it
AU587228B2 (en) * 1985-01-24 1989-08-10 Vallourec Treatment of liquid steel with calcium cored wire
AU586132B2 (en) * 1986-11-28 1989-06-29 Minerals Technologies Inc. Wire injection nozzle

Also Published As

Publication number Publication date
EP0137618B1 (en) 1988-06-22
ES545813A0 (en) 1986-06-16
DK386284D0 (en) 1984-08-10
AU3178384A (en) 1985-02-14
KR850001921A (en) 1985-04-10
ES8607407A1 (en) 1986-06-16
JPH0369966B2 (en) 1991-11-06
ES535098A0 (en) 1986-10-16
DE3472274D1 (en) 1988-07-28
EP0137618A3 (en) 1986-04-02
EP0137618A2 (en) 1985-04-17
JPH0347909A (en) 1991-02-28
KR880000468B1 (en) 1988-04-07
ES8607408A1 (en) 1986-06-16
DK386284A (en) 1985-02-13
BR8404033A (en) 1985-07-16
ES8700330A1 (en) 1986-10-16
ES545812A0 (en) 1986-06-16

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