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GB1405167A - Prevention of shrinkage cavities and voids in metal ingots - Google Patents

Prevention of shrinkage cavities and voids in metal ingots

Info

Publication number
GB1405167A
GB1405167A GB5405272A GB5405272A GB1405167A GB 1405167 A GB1405167 A GB 1405167A GB 5405272 A GB5405272 A GB 5405272A GB 5405272 A GB5405272 A GB 5405272A GB 1405167 A GB1405167 A GB 1405167A
Authority
GB
United Kingdom
Prior art keywords
mould
metal
molten metal
shrinkage cavities
degassed
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
GB5405272A
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.)
Heppenstall Co
Original Assignee
Heppenstall Co
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 Heppenstall Co filed Critical Heppenstall Co
Publication of GB1405167A publication Critical patent/GB1405167A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/02—Use of electric or magnetic effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

1405167 Casting processes HEPPENSTALL CO 22 Nov 1972 [7 June 1972] 54052/72 Addition to 1366707 Heading B3F [Also in Division H5] A method of preventing shrinkage cavities in ingots comprises forming a body 22 of degassed molten metal in a mould 10 and then continuously supplying molten metal to the mould by plasma arc melting an electrode 40 at a rate substantially equal to the rate of volume loss by shrinkage on cooling whereby the level of metal in the mould is maintained substantially constant until solidification is complete. The top of the metal in the mould may be heated by the plasma arcs during the melting process. The initial body of metal in the mould may be formed by vacuum stream degassing, the molten metal being supplied from a ladle (15) mounted on top of the vacuum chamber 12 in place of the portion 17. Alternatively, air teemed metal in the mould 10 may be degassed during the evacuation of the chamber 12 preparatory to the plasma arc melting operation.
GB5405272A 1972-06-07 1972-11-22 Prevention of shrinkage cavities and voids in metal ingots Expired GB1405167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26041072A 1972-06-07 1972-06-07

Publications (1)

Publication Number Publication Date
GB1405167A true GB1405167A (en) 1975-09-03

Family

ID=22989045

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5405272A Expired GB1405167A (en) 1972-06-07 1972-11-22 Prevention of shrinkage cavities and voids in metal ingots
GB3216274A Expired GB1406026A (en) 1972-06-07 1972-11-22 Prevention of shrinkage cavities and voids in metal ingots

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3216274A Expired GB1406026A (en) 1972-06-07 1972-11-22 Prevention of shrinkage cavities and voids in metal ingots

Country Status (6)

Country Link
JP (1) JPS4951125A (en)
AT (1) ATA998272A (en)
DE (1) DE2250710B2 (en)
FR (1) FR2187469B2 (en)
GB (2) GB1405167A (en)
IT (1) IT1045663B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100448568C (en) * 2007-02-15 2009-01-07 浙江天马轴承股份有限公司 Integrated production process of vacuum ladle degassing and vacuum casting multiple steel ingots
US9700936B2 (en) 2013-12-30 2017-07-11 Inteco Special Melting Technologies Gmbh Method and plant for the production of long ingots having a large cross-section

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1023209B (en) * 1974-11-11 1978-05-10 Centro Speriment Metallurg PROCEDURE PERFECTED FOR THE PRODUCTION OF LARGE STONE INGOTS
DE2655602C2 (en) 1976-12-08 1982-12-02 Vereinigte Edelstahlwerke AG (VEW) Wien AT Niederlassung Vereinigte Edelstahlwerke AG (VEW) Verkaufsniederlassung Büderich, 4005 Meerbusch Method and apparatus for making blocks
US4558729A (en) * 1984-01-12 1985-12-17 Demetron, Inc. Method for high vacuum casting
JP2772765B2 (en) * 1994-10-14 1998-07-09 本田技研工業株式会社 Method of heating casting material for thixocasting

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2230296A (en) * 1937-02-10 1941-02-04 Kellogg M W Co Method of casting metal bodies
DE1195016B (en) * 1962-11-30 1965-06-16 Rheinstahl Huettenwerke Ag Process for the production of metal blocks in a vacuum arc furnace with a self-consuming electrode
FR1382078A (en) * 1963-03-22 1964-12-18 Inst Electrosvarki E O Paton Process for packing ingots and device usable in particular for their implementation
US3820587A (en) * 1969-01-20 1974-06-28 Boehler & Co Ag Geb Apparatus for making metal ingots

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100448568C (en) * 2007-02-15 2009-01-07 浙江天马轴承股份有限公司 Integrated production process of vacuum ladle degassing and vacuum casting multiple steel ingots
US9700936B2 (en) 2013-12-30 2017-07-11 Inteco Special Melting Technologies Gmbh Method and plant for the production of long ingots having a large cross-section

Also Published As

Publication number Publication date
DE2250710B2 (en) 1974-03-21
DE2250710A1 (en) 1973-12-20
IT1045663B (en) 1980-06-10
ATA998272A (en) 1978-04-15
FR2187469B2 (en) 1976-06-04
FR2187469A2 (en) 1974-01-18
JPS4951125A (en) 1974-05-17
GB1406026A (en) 1975-09-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee