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GB1335383A - Grain refinement of cast metals - Google Patents

Grain refinement of cast metals

Info

Publication number
GB1335383A
GB1335383A GB1335383DA GB1335383A GB 1335383 A GB1335383 A GB 1335383A GB 1335383D A GB1335383D A GB 1335383DA GB 1335383 A GB1335383 A GB 1335383A
Authority
GB
United Kingdom
Prior art keywords
electrode
melt
stool
coil
mould
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
Inventor
John Campbell
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.)
British Iron and Steel Research Association BISRA
Original Assignee
British Iron and Steel Research Association BISRA
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 British Iron and Steel Research Association BISRA filed Critical British Iron and Steel Research Association BISRA
Publication of GB1335383A publication Critical patent/GB1335383A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

1335383 Casting processes and apparatus BRITISH IRON & STEEL RESEARCH ASSOCIATION 19 April 1971 [23 March 1970] 13922/70 Heading B3F [Also in Divisions B1 and H5] Metals which solidify with a dendritic structure, e.g. steel, aluminium, are given a finegrained structure by stirring the melt whilst solidifying to break up dendritic growth. The stirring is produced by passing an electric current through the melt in the presence of a stationary magnetic field and is such that the melt in one plane rotates in one direction whilst the melt in an adjacent plane rotates in the opposite direction thus producing sufficient turbulence between the planes to break up dendritic growth. In an electroslag refining process, a consumable steel electrode 3 is fused into a molten slag bath within a cylindrical mould 17 of non-magnetic material. The mould 17 is cooled by a water-spray or cooling jacket and rests upon a water-cooled stool 2. An electric current is passed from the electrode 3 to the stool 2 but the mould 17 is insulated from the stool to ensure vertical current flow. About the central portion of the stool is a magnetic field producing coil 4 which may or may not be connected in series with the electrode current supply. Both the coil 4 and the electrode 3 are vertically movable on screwjacks 6, 7, 8, 9. The metal above and below the coil 4 rotates in opposite directions 15, 16. The coil 4 is moved upwards as electrode melting proceeds. The process can also be applied to vacuum arc refining apparatus using a consumable electrode and to directional solidification apparatus where the melt is heated by current from a non- consumable electrode.
GB1335383D 1970-03-23 1970-03-23 Grain refinement of cast metals Expired GB1335383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1392270 1970-03-23

Publications (1)

Publication Number Publication Date
GB1335383A true GB1335383A (en) 1973-10-24

Family

ID=10031834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1335383D Expired GB1335383A (en) 1970-03-23 1970-03-23 Grain refinement of cast metals

Country Status (1)

Country Link
GB (1) GB1335383A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413469A1 (en) * 1977-12-27 1979-07-27 Concast Ag PROCESS FOR INFLUENCING THE DISTRIBUTION OF DIFFERENT CONSTITUENTS IN AN ELECTRIC CONDUCTIVE LIQUID
US4185682A (en) * 1977-06-23 1980-01-29 Frumin Isidor I Electroslag remelting and surfacing apparatus
US4305451A (en) * 1977-06-23 1981-12-15 Ksendzyk Georgy V Electroslag remelting and surfacing apparatus
EP0094820A2 (en) * 1982-05-14 1983-11-23 Hitachi, Ltd. Method and apparatus for manufacturing a composite steel ingot
WO1993020968A1 (en) * 1992-04-08 1993-10-28 Misra Asoka K Method and apparatus for controlling solidification of metals and other materials
CN103974481A (en) * 2013-01-30 2014-08-06 郑州威尔特材有限公司 Iron bar electrode for electric melting furnace
CN104439196A (en) * 2014-11-26 2015-03-25 上海大学 Technology for refining solidification structure through consumable shear flow method and device thereof
CN104942271A (en) * 2015-06-30 2015-09-30 中国工程物理研究院材料研究所 Beryllium-aluminum alloy sheet and manufacturing method thereof
CN105195716A (en) * 2015-09-24 2015-12-30 上海大学 Method for conducting oriented solidification on CET refining metal solidification organization under longitudinal magnetic field
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
CN113909458A (en) * 2021-09-16 2022-01-11 江苏星火特钢有限公司 Method for refining directional solidification structure of high-temperature alloy casting through ultrasonic disturbance

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4185682A (en) * 1977-06-23 1980-01-29 Frumin Isidor I Electroslag remelting and surfacing apparatus
US4305451A (en) * 1977-06-23 1981-12-15 Ksendzyk Georgy V Electroslag remelting and surfacing apparatus
FR2413469A1 (en) * 1977-12-27 1979-07-27 Concast Ag PROCESS FOR INFLUENCING THE DISTRIBUTION OF DIFFERENT CONSTITUENTS IN AN ELECTRIC CONDUCTIVE LIQUID
EP0094820A2 (en) * 1982-05-14 1983-11-23 Hitachi, Ltd. Method and apparatus for manufacturing a composite steel ingot
EP0094820A3 (en) * 1982-05-14 1984-02-15 Hitachi, Ltd. Method and apparatus for manufacturing a composite steel ingot
WO1993020968A1 (en) * 1992-04-08 1993-10-28 Misra Asoka K Method and apparatus for controlling solidification of metals and other materials
CN103974481A (en) * 2013-01-30 2014-08-06 郑州威尔特材有限公司 Iron bar electrode for electric melting furnace
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
CN104439196A (en) * 2014-11-26 2015-03-25 上海大学 Technology for refining solidification structure through consumable shear flow method and device thereof
CN104942271A (en) * 2015-06-30 2015-09-30 中国工程物理研究院材料研究所 Beryllium-aluminum alloy sheet and manufacturing method thereof
CN105195716A (en) * 2015-09-24 2015-12-30 上海大学 Method for conducting oriented solidification on CET refining metal solidification organization under longitudinal magnetic field
CN105195716B (en) * 2015-09-24 2018-07-10 上海大学 The method of directional solidification CET thinning metal solidification textures under longitudinal magnetic field
CN113909458A (en) * 2021-09-16 2022-01-11 江苏星火特钢有限公司 Method for refining directional solidification structure of high-temperature alloy casting through ultrasonic disturbance

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees