GB1438693A - Metho- for producing directionally solidified castings - Google Patents

Metho- for producing directionally solidified castings

Info

Publication number
GB1438693A
GB1438693A GB4613975A GB4613975A GB1438693A GB 1438693 A GB1438693 A GB 1438693A GB 4613975 A GB4613975 A GB 4613975A GB 4613975 A GB4613975 A GB 4613975A GB 1438693 A GB1438693 A GB 1438693A
Authority
GB
United Kingdom
Prior art keywords
mould
metal
crucible
furnace
lowered
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
GB4613975A
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.)
HOWEMET CORP
Original Assignee
HOWEMET 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 HOWEMET CORP filed Critical HOWEMET CORP
Publication of GB1438693A publication Critical patent/GB1438693A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • B22D27/045Directionally solidified castings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

1438693 Casting processes HOWMET CORP 24 Sept 1973 [21 Feb 1973] 46139/75 Divided out of 1438692 Heading B3F In a method of producing directionally solidified castings, a crucible 56 containing the metal 62 is located on top of the mould 32, and the crucible and mould located within a furnace 16 and heated to melt the metal which is then allowed to flow into the mould cavities 46. The crucible 56 is supported on a flat upper surface 52 of the mould 32 and is provided with an opening 60 in its bottom wall, passage of molten metal through the opening normally being prevented by the surface 52. When it is desired to discharge the metal from the crucible 56, the latter is tilted, Fig. 3 (not shown), by means of an arm 68 to move the opening 60 away from the surface 52 to allow metal to flow therethrough into the cavities 46. The shell mould 32 is supported on a chill plate 30 provided with cooling coils 34 and may be raised and lowered by means of a piston rod 40. A flexible baffle 72 may be attached to the top of the mould. The furnace may be provided with induction coils 18 divided into two sections 64 and 66, one section being used to melt the metal 62 and the other section being used to pre-heat the mould 32. Alternatively the chill plate 30 initially is positioned so that only the crucible is within the furnace and is later raised to bring the mould into the heated zone. After the mould has been filled, the chill plate 30 may be lowered gradually to move the mould out of the furnace and bring about directional solidification. The apparatus may include two housings 10 and 12, Fig. 1 (not shown), defining upper and lower chambers respectively to permit the process to be carried out in a vacuum or inert atmosphere. The furnace is located in the upper chamber and the mould and crucible may be lowered into the lower chamber through cooling coils 38 and a valve 44. To obtain a very flat upper surface 52 on the shell mould, the wax pattern employed in the production of the mould may be provided with a metal disc.
GB4613975A 1973-02-21 1973-09-24 Metho- for producing directionally solidified castings Expired GB1438693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00334264A US3841384A (en) 1973-02-21 1973-02-21 Method and apparatus for melting and casing metal

Publications (1)

Publication Number Publication Date
GB1438693A true GB1438693A (en) 1976-06-09

Family

ID=23306398

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4469273A Expired GB1438692A (en) 1973-02-21 1973-09-24 Apparatus for producing directionally solidified castings
GB4613975A Expired GB1438693A (en) 1973-02-21 1973-09-24 Metho- for producing directionally solidified castings

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB4469273A Expired GB1438692A (en) 1973-02-21 1973-09-24 Apparatus for producing directionally solidified castings

Country Status (10)

Country Link
US (1) US3841384A (en)
JP (1) JPS49115027A (en)
BE (1) BE809293A (en)
CA (1) CA998512A (en)
CH (1) CH562646A5 (en)
DE (1) DE2361555A1 (en)
FR (1) FR2218152B1 (en)
GB (2) GB1438692A (en)
IT (1) IT998894B (en)
SE (1) SE388140B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5575879A (en) * 1978-12-02 1980-06-07 Arekuseeeuitsuchi Chi Washirii Method for manufacturing casting piece solidifying with directional property and its device
US4612969A (en) * 1983-04-27 1986-09-23 Howmet Turbine Components Corporation Method of and apparatus for casting articles with predetermined crystalline orientation
US4597431A (en) * 1983-12-28 1986-07-01 Kyocera Corporation Melting and pressure casting device
JPS62103349A (en) * 1985-10-30 1987-05-13 Agency Of Ind Science & Technol Method for controlling metallic structure
US5335711A (en) * 1987-05-30 1994-08-09 Ae Plc Process and apparatus for metal casting
GB2270867B (en) * 1992-09-25 1996-05-01 T & N Technology Ltd Thermal radiation baffle for apparatus for use in directional solidification
US5528620A (en) * 1993-10-06 1996-06-18 Fuji Electric Co., Ltd. Levitating and melting apparatus and method of operating the same
US5931214A (en) * 1997-08-07 1999-08-03 Howmet Research Corporation Mold heating vacuum casting furnace
US6932145B2 (en) * 1998-11-20 2005-08-23 Rolls-Royce Corporation Method and apparatus for production of a cast component
US7418993B2 (en) * 1998-11-20 2008-09-02 Rolls-Royce Corporation Method and apparatus for production of a cast component
US6276432B1 (en) * 1999-06-10 2001-08-21 Howmet Research Corporation Directional solidification method and apparatus
US6443213B1 (en) 2000-05-11 2002-09-03 Pcc Airfoils, Inc. System for casting a metal article using a fluidized bed
US6695034B2 (en) 2000-05-11 2004-02-24 Pcc Airfoils, Inc. System for casting a metal article
EP1162016B1 (en) * 2000-05-13 2004-07-21 ALSTOM Technology Ltd Apparatus for casting a directionally solidified article
US6896030B2 (en) * 2003-07-30 2005-05-24 Howmet Corporation Directional solidification method and apparatus
US7448428B2 (en) * 2005-10-14 2008-11-11 Pcc Airfoils, Inc. Method of casting
US7849910B2 (en) * 2008-06-12 2010-12-14 Pcc Airfoils, Inc. Method and apparatus for casting metal articles
CN102042755B (en) * 2010-12-10 2012-05-02 锦州固兴科技有限公司 Rapid vacuum induction casting electric furnace
US9381569B2 (en) 2013-03-07 2016-07-05 Howmet Corporation Vacuum or air casting using induction hot topping
CN103951158B (en) * 2014-03-20 2017-03-08 中国建筑材料科学研究总院 The vacuum fusion stove of a kind of infrared glass and found system and method
US10589351B2 (en) 2017-10-30 2020-03-17 United Technologies Corporation Method for magnetic flux compensation in a directional solidification furnace utilizing an actuated secondary coil
US10760179B2 (en) 2017-10-30 2020-09-01 Raytheon Technologies Corporation Method for magnetic flux compensation in a directional solidification furnace utilizing a stationary secondary coil
US10711367B2 (en) 2017-10-30 2020-07-14 Raytheon Technoiogies Corporation Multi-layer susceptor design for magnetic flux shielding in directional solidification furnaces
CN109396400B (en) * 2018-11-29 2020-11-13 中国科学院金属研究所 Large complex thin-wall fine-grain casting integrated forming method and device
PL242831B1 (en) * 2019-12-31 2023-05-02 Seco/Warwick Spolka Akcyjna Method and device for directional crystallization of castings with a directed or monocrystalline structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506061A (en) * 1965-06-10 1970-04-14 Gen Electric Apparatus for vacuum-casting a plurality of metal parts in a single mold
US3434527A (en) * 1966-01-06 1969-03-25 Allis Chalmers Mfg Co Method for ultra-high purity precision casting
US3712368A (en) * 1971-12-01 1973-01-23 United Aircraft Corp Apparatus for making directionally solidified castings

Also Published As

Publication number Publication date
FR2218152A1 (en) 1974-09-13
SE388140B (en) 1976-09-27
GB1438692A (en) 1976-06-09
BE809293A (en) 1974-04-16
US3841384A (en) 1974-10-15
IT998894B (en) 1976-02-20
FR2218152B1 (en) 1976-10-01
CA998512A (en) 1976-10-19
JPS49115027A (en) 1974-11-02
DE2361555A1 (en) 1974-08-22
CH562646A5 (en) 1975-06-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees