GB847862A - Improved method and apparatus for the vacuum treatment of molten metals - Google Patents

Improved method and apparatus for the vacuum treatment of molten metals

Info

Publication number
GB847862A
GB847862A GB4115/58A GB411558A GB847862A GB 847862 A GB847862 A GB 847862A GB 4115/58 A GB4115/58 A GB 4115/58A GB 411558 A GB411558 A GB 411558A GB 847862 A GB847862 A GB 847862A
Authority
GB
United Kingdom
Prior art keywords
metal
chamber
vessel
flow
controlled
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
GB4115/58A
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.)
SCIENT RES I Ltd
Original Assignee
SCIENT RES I 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 SCIENT RES I Ltd filed Critical SCIENT RES I Ltd
Publication of GB847862A publication Critical patent/GB847862A/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
    • 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

Abstract

847,862. Degasing metals. SCIENTIFIC RESEARCH INSTITUTE Ltd. Feb. 7, 1958 [Feb. 9, 1957], No. 4115/58. Class 72 Metal is vacuum degassed' by feeding at a controlled rate to a high vacuum degasification vessel from which it flows under gravity to a chamber at sub-atmospheric pressure, the rate of said flow being controlled by the relative pressures in the vessel and the chamber, and the static head of metal in the vessel. As shown, metal in receiver 2 flows through foraminated disc 4, the rate of flow being controlled by adjustable stoppers 5 in some of the jet holes. The depth of molten metal H is measured electrically by means of carbon bars 11. A stopper 12 is used initially to prevent communication between high vacuum vessel 1-1<SP>1</SP> and chamber 17-17<SP>1</SP>, which can contain a neutral, reducing or inert gas such as hydrogen, carbon dioxide or argon. When the desired head of metal H is reached, stopper 12 allows the metal to flow into chamber 17- 17<SP>1</SP> in which may be placed a ladle or mould. At least two chambers 17<SP>1</SP> may be used successively to reduce the delay between operations.
GB4115/58A 1957-02-09 1958-02-07 Improved method and apparatus for the vacuum treatment of molten metals Expired GB847862A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP847862X 1957-02-09

Publications (1)

Publication Number Publication Date
GB847862A true GB847862A (en) 1960-09-14

Family

ID=13840364

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4115/58A Expired GB847862A (en) 1957-02-09 1958-02-07 Improved method and apparatus for the vacuum treatment of molten metals

Country Status (1)

Country Link
GB (1) GB847862A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800851A (en) * 1971-05-28 1974-04-02 Precision Metalsmiths Inc Metal casting apparatus with means for evacuating mold chamber and pouring chamber
US4478270A (en) * 1981-04-01 1984-10-23 Interlake, Inc. Apparatus for casting low-density alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800851A (en) * 1971-05-28 1974-04-02 Precision Metalsmiths Inc Metal casting apparatus with means for evacuating mold chamber and pouring chamber
US4478270A (en) * 1981-04-01 1984-10-23 Interlake, Inc. Apparatus for casting low-density alloys

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