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GB1278224A - Improvements in or relating to castings - Google Patents

Improvements in or relating to castings

Info

Publication number
GB1278224A
GB1278224A GB1626571A GB1626571A GB1278224A GB 1278224 A GB1278224 A GB 1278224A GB 1626571 A GB1626571 A GB 1626571A GB 1626571 A GB1626571 A GB 1626571A GB 1278224 A GB1278224 A GB 1278224A
Authority
GB
United Kingdom
Prior art keywords
mould
electrodes
sequentially
molten metal
supply
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
GB1626571A
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Publication of GB1278224A publication Critical patent/GB1278224A/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
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • B22D27/045—Directionally solidified castings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

1278224 Directional crystallization TRW Inc 21 May 1971 [6 Oct 1970] 16265/71 Heading B1S [Also in Divisions B3 and H5] Directionally solidified castings are provided by preheating a ceramic mould, pouring molten metal into the mould, positioning a plurality of electrodes along the desired direction of grain, growth of the castings with their axes perpendicular to the desired grain growth direction. Connecting the electrodes to a high potential DC source and sequentially energising the electrodes to facilitate cooling of the casting by the application of an electrostatic field. A multicavitied turbine blade mould 10 is placed upon a copper water-cooled, chill plate 12, within an induction furnace having several annular sequentially operable graphite susceptors 18 separated by ceramic annular insulation 19. The insulation 19 supports electrodes 20-28 which are connected to an X-ray high voltage supply 29 by means of a sequential switching device 31. The mould 10 is preheated (e.g. to 2300‹F) and molten metal poured (e.g. nickel alloy at 2900‹F) whereupon an electrode 44 connected to the positive terminal of the DC supply 29 is dipped into the molten metal in the mould. Upward solidification is induced from the chill plate 12 and is continued by sequentially turning off the current supply of the susceptors 18 upwardly. To accelerate cooling the electrodes 20 to 28 are sequentially energised upwardly by device 31 controlled by a timer 32. Conduits 45 are provided in the induction furnace base 13 to supply air or inert gas to the mould to accelerate cooling.
GB1626571A 1970-10-06 1971-05-21 Improvements in or relating to castings Expired GB1278224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7836870A 1970-10-06 1970-10-06

Publications (1)

Publication Number Publication Date
GB1278224A true GB1278224A (en) 1972-06-21

Family

ID=22143609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1626571A Expired GB1278224A (en) 1970-10-06 1971-05-21 Improvements in or relating to castings

Country Status (3)

Country Link
JP (1) JPS514185B1 (en)
FR (1) FR2112258B1 (en)
GB (1) GB1278224A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196281A (en) * 1986-10-15 1988-04-27 Rex Hinchcliffe Directionally solidified light metal casting
GB2303324A (en) * 1995-07-19 1997-02-19 Mtu Muenchen Gmbh Component with cavities having a columnar structure
US6103993A (en) * 1996-07-10 2000-08-15 Mtu Motoren-Und Turbinen-Union Munchen Gmbh Hollow rotor blade of columnar structure having a single crystal column in which a series of holes are laser drilled
EP2135693A3 (en) * 2008-06-06 2010-05-26 Ambros Schmelzer & Sohn GmbH & Co. KG Filter element and method for manufacturing a filter element
CN105750532A (en) * 2016-04-08 2016-07-13 宁夏共享模具有限公司 3D (three-dimensional) printing type ball casting solidification sequence control device and control method thereof
US10082032B2 (en) 2012-11-06 2018-09-25 Howmet Corporation Casting method, apparatus, and product

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110052584B (en) * 2019-05-22 2024-08-30 西南交通大学 Method for manufacturing heat dissipation plate
CN112371954B (en) * 2020-09-10 2021-11-02 颍上县金达塑料制品有限公司 Mold with good cooling effect for producing rice seedling trays and using method thereof
CN114535517B (en) * 2020-11-26 2024-04-12 中国兵器工业第五九研究所 Forming method of revolving body casting

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196281A (en) * 1986-10-15 1988-04-27 Rex Hinchcliffe Directionally solidified light metal casting
GB2196281B (en) * 1986-10-15 1991-04-03 Rex Hinchcliffe Method of and apparatus for, producing light alloy castings
GB2303324A (en) * 1995-07-19 1997-02-19 Mtu Muenchen Gmbh Component with cavities having a columnar structure
GB2303324B (en) * 1995-07-19 1999-03-24 Mtu Muenchen Gmbh Turbojet engine component with cavities, made of directionally solidified metal alloys with columnar structure
US6103993A (en) * 1996-07-10 2000-08-15 Mtu Motoren-Und Turbinen-Union Munchen Gmbh Hollow rotor blade of columnar structure having a single crystal column in which a series of holes are laser drilled
EP2135693A3 (en) * 2008-06-06 2010-05-26 Ambros Schmelzer & Sohn GmbH & Co. KG Filter element and method for manufacturing a filter element
US10082032B2 (en) 2012-11-06 2018-09-25 Howmet Corporation Casting method, apparatus, and product
US10711617B2 (en) 2012-11-06 2020-07-14 Howmet Corporation Casting method, apparatus and product
CN105750532A (en) * 2016-04-08 2016-07-13 宁夏共享模具有限公司 3D (three-dimensional) printing type ball casting solidification sequence control device and control method thereof
CN105750532B (en) * 2016-04-08 2018-01-12 宁夏共享模具有限公司 The nodular iron casting solidification sequence control device and its control method of a kind of 3D printing

Also Published As

Publication number Publication date
FR2112258A1 (en) 1972-06-16
FR2112258B1 (en) 1974-09-06
JPS514185B1 (en) 1976-02-09

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Legal Events

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