GB828245A - High-vacuum a.c. arc melting of reactive metals - Google Patents

High-vacuum a.c. arc melting of reactive metals

Info

Publication number
GB828245A
GB828245A GB7194/57A GB719457A GB828245A GB 828245 A GB828245 A GB 828245A GB 7194/57 A GB7194/57 A GB 7194/57A GB 719457 A GB719457 A GB 719457A GB 828245 A GB828245 A GB 828245A
Authority
GB
United Kingdom
Prior art keywords
arc melting
compound
metal
electrode
reactive
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
GB7194/57A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB828245A publication Critical patent/GB828245A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/005—Electrical diagrams

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)

Abstract

828,245. Arc melting electrodes. UNION CARBIDE CORPORATION. March 5, 1957 [March 16, 1956], No. 7194/57. Drawings to Specification. Class 39(3) A method of arc melting reactive metals, e.g. titanium, under sub-atmospheric pressure with alternating current includes employing a consumable electrode comprising a compacted mass of spongy or powdered reactive metal in which is incorporated a compound of a metal having a lower ionization potential than that of the reactive metal. Suitable compounds, e.g. chlorides, are those of alkali metals or barium. The compound is incorporated in the electrode to provide from 0.03% to 1.00% by weight of the alkali metal or barium. It is stated that the presence of the compound stabilizes the A.C. arc at low pressures, e.g. from 1 to 1000 microns of mercury, thus allowing the electrode feed rate to be automatically controlled.
GB7194/57A 1956-03-16 1957-03-05 High-vacuum a.c. arc melting of reactive metals Expired GB828245A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US828245XA 1956-03-16 1956-03-16

Publications (1)

Publication Number Publication Date
GB828245A true GB828245A (en) 1960-02-17

Family

ID=22173687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7194/57A Expired GB828245A (en) 1956-03-16 1957-03-05 High-vacuum a.c. arc melting of reactive metals

Country Status (2)

Country Link
BE (1) BE555723A (en)
GB (1) GB828245A (en)

Also Published As

Publication number Publication date
BE555723A (en)

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