GB796369A - Method of and apparatus for introducing gases and other substances into flowing streams of molten steels or steel alloys - Google Patents

Method of and apparatus for introducing gases and other substances into flowing streams of molten steels or steel alloys

Info

Publication number
GB796369A
GB796369A GB3620555A GB3620555A GB796369A GB 796369 A GB796369 A GB 796369A GB 3620555 A GB3620555 A GB 3620555A GB 3620555 A GB3620555 A GB 3620555A GB 796369 A GB796369 A GB 796369A
Authority
GB
United Kingdom
Prior art keywords
steel
dec
treating
stream
vessel
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
GB3620555A
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.)
Bochumer Verein fuer Gussstahlfabrikation AG
Original Assignee
Bochumer Verein fuer Gussstahlfabrikation AG
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 Bochumer Verein fuer Gussstahlfabrikation AG filed Critical Bochumer Verein fuer Gussstahlfabrikation AG
Priority to GB3620555A priority Critical patent/GB796369A/en
Publication of GB796369A publication Critical patent/GB796369A/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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

796,369. Treating steels and steel alloys. BOCHUMER VEREIN FUR GUSSSTAHLFABRIKATION AKT.-GES. Dec. 16, 1955 [Dec. 17, 1954; Dec. 17, 1954], No. 36205/55 Classes 72 and 82(1) A method of introducing refining agents or alloying constituents into steel or steel alloys is characterized in that the molten steel or alloy is introduced into an evacuated space and falls freely through that space, preferably in a stream of fine droplets, and the materials to be added are brought into contact with the flowing stream. As shown in the Figure vessel 1 is connected to vacuum pumps through a conduit 5 and is sealed by a lid 3 having an orifice 12 which is surmounted by a pouring ladle 9 which is itself sealed to the lid. Molten metal falls into the evacuated vessel 1 under control of an adjustable outlet 10. The treating material, which may be a gas, is introduced into the vessel 1 in the region of the flowing stream through a duct 8. Finely divided solid treating material may be introduced by being carried by an inert gas stream from a container 16 which opens into the duct 8. Alternatively the treating gas and solid or liquid material may be introduced through separate inlets into the flowing stream of metal. The Specification refers to the addition of titanium, aluminium, boron, niobium, tantalum'or vanadium or their alloys or compounds into molten steel. Specification 792,160 is referred to.
GB3620555A 1955-12-16 1955-12-16 Method of and apparatus for introducing gases and other substances into flowing streams of molten steels or steel alloys Expired GB796369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3620555A GB796369A (en) 1955-12-16 1955-12-16 Method of and apparatus for introducing gases and other substances into flowing streams of molten steels or steel alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3620555A GB796369A (en) 1955-12-16 1955-12-16 Method of and apparatus for introducing gases and other substances into flowing streams of molten steels or steel alloys

Publications (1)

Publication Number Publication Date
GB796369A true GB796369A (en) 1958-06-11

Family

ID=6710931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3620555A Expired GB796369A (en) 1955-12-16 1955-12-16 Method of and apparatus for introducing gases and other substances into flowing streams of molten steels or steel alloys

Country Status (1)

Country Link
GB (1) GB796369A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224051A (en) * 1962-01-31 1965-12-21 Brown Fintube Co Method of introducing addition agent into a melt
DE1267695B (en) * 1959-03-28 1968-05-09 Thyssen Huette Ag Process for the production of low-alloy steels
US3410548A (en) * 1965-09-08 1968-11-12 Lectromelt Corp Apparatus having a material feed means for the vacuum treatment of molten metal
US3581803A (en) * 1968-05-24 1971-06-01 Charles W Finkl Method of reducing center porosity in ingot casting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267695B (en) * 1959-03-28 1968-05-09 Thyssen Huette Ag Process for the production of low-alloy steels
US3224051A (en) * 1962-01-31 1965-12-21 Brown Fintube Co Method of introducing addition agent into a melt
US3410548A (en) * 1965-09-08 1968-11-12 Lectromelt Corp Apparatus having a material feed means for the vacuum treatment of molten metal
US3581803A (en) * 1968-05-24 1971-06-01 Charles W Finkl Method of reducing center porosity in ingot casting

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