GB908471A - Improvements in or relating to the treatment of molten steel - Google Patents

Improvements in or relating to the treatment of molten steel

Info

Publication number
GB908471A
GB908471A GB4094158A GB4094158A GB908471A GB 908471 A GB908471 A GB 908471A GB 4094158 A GB4094158 A GB 4094158A GB 4094158 A GB4094158 A GB 4094158A GB 908471 A GB908471 A GB 908471A
Authority
GB
United Kingdom
Prior art keywords
steel
molten steel
conduit
dec
chamber
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
GB4094158A
Inventor
Kossy Strauss
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.)
Foundry Services International Ltd
Original Assignee
Foundry Services International 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 Foundry Services International Ltd filed Critical Foundry Services International Ltd
Priority to GB4094158A priority Critical patent/GB908471A/en
Priority to FR813538A priority patent/FR1244642A/en
Publication of GB908471A publication Critical patent/GB908471A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • 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
    • 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
    • C21C7/10—Handling in a vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

908,471. De-gassing steel. FOUNDRY SERVICES INTERNATIONAL Ltd. Dec. 11, 1959 [Dec. 18, 1958], No. 40941/58. Class 72. Molten steel is refined for the removal of dissolved or occluded hydrogen by adding to the steel a solid substance which at the temperature of the molten steel generates a flushing gas, e.g. CO 2 and/or CO, for removing the hydrogen, whilst the steel, preferably in a ladle 2, is housed in a chamber 1 in which the gaseous pressure over the melt is reduced below atmospheric pressure, e.g. by pump 13 connected via exit conduit 10. The substance 7 may be introduced by plunger rods 6 and a gas such as chlorine may be flushed through the steel from conduit 17. Air, nitrogen or argon may be introduced into the chamber through inlet conduit 8. Specifications 815,847 and 901,223 are referred to.
GB4094158A 1958-12-18 1958-12-18 Improvements in or relating to the treatment of molten steel Expired GB908471A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4094158A GB908471A (en) 1958-12-18 1958-12-18 Improvements in or relating to the treatment of molten steel
FR813538A FR1244642A (en) 1958-12-18 1959-12-18 Improvements in the treatment of molten metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4094158A GB908471A (en) 1958-12-18 1958-12-18 Improvements in or relating to the treatment of molten steel

Publications (1)

Publication Number Publication Date
GB908471A true GB908471A (en) 1962-10-17

Family

ID=10417351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4094158A Expired GB908471A (en) 1958-12-18 1958-12-18 Improvements in or relating to the treatment of molten steel

Country Status (2)

Country Link
FR (1) FR1244642A (en)
GB (1) GB908471A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281312A (en) * 1993-08-20 1995-03-01 Leybold Durferrit Gmbh Process for decarburizing carbon-containing molten metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281312A (en) * 1993-08-20 1995-03-01 Leybold Durferrit Gmbh Process for decarburizing carbon-containing molten metal
GB2281312B (en) * 1993-08-20 1997-04-23 Leybold Durferrit Gmbh Process for decarburizing carbon-containing molten metal

Also Published As

Publication number Publication date
FR1244642A (en) 1960-10-28

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