GB949060A - Continuous treatment of molten steel - Google Patents

Continuous treatment of molten steel

Info

Publication number
GB949060A
GB949060A GB4007560A GB4007560A GB949060A GB 949060 A GB949060 A GB 949060A GB 4007560 A GB4007560 A GB 4007560A GB 4007560 A GB4007560 A GB 4007560A GB 949060 A GB949060 A GB 949060A
Authority
GB
United Kingdom
Prior art keywords
steel
container
hole
stopper rod
nozzle
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
GB4007560A
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.)
METALLURG D ESPERANCE LONGDOZ
Original Assignee
METALLURG D ESPERANCE LONGDOZ
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 to LU37966 priority Critical
Application filed by METALLURG D ESPERANCE LONGDOZ filed Critical METALLURG D ESPERANCE LONGDOZ
Publication of GB949060A publication Critical patent/GB949060A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • C21C7/06Deoxidising, e.g. killing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10Supplying or treating molten metal
    • B22D11/11Treating the molten metal
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56Manufacture of steel by other methods
    • C21C5/567Manufacture of steel by other methods operating in a continuous way

Abstract

<PICT:0949060/C3/1> Steel is treated by a continuous process which comprises placing it in an open container, heating and circulating it by electrical induction, deoxidizing it with aluminium so that alumina formed is taken up by a supernatant slag and continuously passing the steel from the container through a duct shielding it from the air into a mould. For example, molten steel 6 from a converter is poured, at a temperature 20 degrees below the normal temperature at the end of a converter heat, from a spout 3, and preferably in a stream of which one side is free, into a container 4 fitted with an electrical induction coil 10, where it is then heated and the aluminium and alloying addition,if any,are added continuously; alumina and other impurities come out in the supernatant slag 12 owing to the stirring action. The container 4 is connected by the duct 14 to an auxiliary chamber 16 which is filled with an inert gas e.g. nitrogen or argon supplied from cylinders 17 through the dome 18 and ducts 22, 23, 24 and fitted with an outlet nozzle 27 whose bore 28 diverges and a metal stopper rod 32 fixed to a piston 35 and a rod 36, the latter being located in a cylinder 37 between the dome 18 and chamber 16. Initially the stopper rod 32 is pressed downwards against the nozzle 27 by passing pressure fluid through the hole 44. To operate the flow of steel, the pressure of the inert gas is increased until the plug 9 is blown out of the hole 8, and the stopper rod 32 is raised by passing pressure fluid through the hole 45, the lower end of the nozzle 27 being below the level 30 of the liquid steel in the mould 31 to exclude air.
GB4007560A 1959-11-23 1960-11-22 Continuous treatment of molten steel Expired GB949060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU37966 1959-11-23

Publications (1)

Publication Number Publication Date
GB949060A true GB949060A (en) 1964-02-12

Family

ID=19722308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4007560A Expired GB949060A (en) 1959-11-23 1960-11-22 Continuous treatment of molten steel

Country Status (3)

Country Link
US (1) US3206301A (en)
GB (1) GB949060A (en)
LU (1) LU37966A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004153A (en) * 1990-03-02 1991-04-02 General Electric Company Melt system for spray-forming

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413401A (en) * 1966-02-02 1968-11-26 Northwestern Steel & Wire Co Method and apparatus for melting metals by induction heating
GB1277491A (en) * 1969-02-27 1972-06-14 Stoecker & Kunz G M B H Improvements in closure devices for metallurgical and like vessels
US3775091A (en) * 1969-02-27 1973-11-27 Interior Induction melting of metals in cold, self-lined crucibles
GB1312243A (en) * 1969-03-21 1973-04-04 Ashmore Benson Pease & Co Ltd Continuous casting apparatus
SE356914B (en) * 1969-04-15 1973-06-12 Voest Ag
US3679105A (en) * 1970-03-05 1972-07-25 Babcock & Wilcox Co Nozzle arrangement for molten metal container vessel
SE372187B (en) * 1972-06-05 1974-12-16 Graenges Essem Ab
US4120696A (en) * 1973-05-19 1978-10-17 Klockner-Werke Ag Process for the production of steel
FR2350909B1 (en) * 1976-05-10 1980-10-31 Zeppellini Dino
JPH045742B2 (en) * 1984-03-14 1992-02-03 Aichi Seiko Kk
JPS62170460A (en) * 1986-01-21 1987-07-27 Daido Steel Co Ltd High strength valve spring steel and its manufacture
US6627146B1 (en) * 2000-12-28 2003-09-30 Hayes Lemmerz International, Inc. Stopper module device for a casting machine furnace apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1318164A (en) * 1919-10-07 John mcconnell
US1309162A (en) * 1919-07-08 William r
US2193034A (en) * 1936-05-08 1940-03-12 Mars Georg Apparatus for treating materials under reduced pressure
US2225373A (en) * 1937-07-29 1940-12-17 Norman P Goss Method and apparatus for casting metal
US2253421A (en) * 1938-09-20 1941-08-19 Mare Baltzar E L De Method and apparatus for deoxidizing and degasifying liquid steel
US2339337A (en) * 1942-03-14 1944-01-18 Int Smelting & Refining Co Furnace launder construction
US2741555A (en) * 1951-03-17 1956-04-10 Oesterriechisch Alpine Montang Process for refining pig iron
US2837790A (en) * 1953-12-28 1958-06-10 Ford Motor Co Process for degassing ferrous metals
US2788270A (en) * 1954-08-10 1957-04-09 Universal Cyclops Steel Corp Method and apparatus for melting metal under vacuum
US2976339A (en) * 1956-12-03 1961-03-21 Heraeus Gmbh W C Vacuum smelting furnace and method of operation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004153A (en) * 1990-03-02 1991-04-02 General Electric Company Melt system for spray-forming

Also Published As

Publication number Publication date
LU37966A1 (en)
US3206301A (en) 1965-09-14
LU37966A (en)

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