GB615484A - Improvements in or relating to methods of liquid casting - Google Patents

Improvements in or relating to methods of liquid casting

Info

Publication number
GB615484A
GB615484A GB17282/46A GB1728246A GB615484A GB 615484 A GB615484 A GB 615484A GB 17282/46 A GB17282/46 A GB 17282/46A GB 1728246 A GB1728246 A GB 1728246A GB 615484 A GB615484 A GB 615484A
Authority
GB
United Kingdom
Prior art keywords
mould
molten metal
tube
vessel
casting
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
GB17282/46A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB615484A publication Critical patent/GB615484A/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
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/06—Heating or cooling equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

615,484. Casting-machines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 6, 1946, No. 17282. Convention date, April 13, 1942. [Class 83 (i)] [Also in Group V] In a method of casting, molten metal is drawn upwardly into an exhausted mould through a rising tube by which the mould is continuously connected to a bath of molten metal, the mould being exhausted rapidly and the ascending liquid being checked sufficiently to allow a high vacuum to be attained in the mould, but the rate of flow being sufficient to fill the mould by impact. The bottom of a two-part mould 6, 7 communicates through a connecting piece 11 with a vertical tube 8, 30 cms. long and 30 mms. diameter, the lower end of which has an inlet restricted to a diameter of 6 mms. beneath the surface of molten metal 2 in a pot 1 heated by burners 3. The tube 8 and connecting piece 11 may be heated by electric heaters 12 and 13. The mould is housed within a chamber formed by a cover 16 and a cylindrical wall 24 and connected by a pipe 22 to a vessel 18 and a vacuum pump 19. With the apparatus in the position, as shown in the Figure, the pump 19 is started and the vessel 18 evacuated. Tap 17 is then opened to connect the mould housing to the vessel and rapid evacuation of the mould occurs through a narrow space 20 between the upper and lower parts 6 and 7. Molten metal rises in the tube 8 and reaches the mould when the latter has been substantially evacuated. After filling the mould, the molten metal reaches the narrow passage 20 where it solidifies rapidly and so produces a sudden check in the flow. This causes a considerable rise in pressure within the mould due to the momentum of the liquid column, thereby producing a good impression.
GB17282/46A 1942-04-13 1946-06-06 Improvements in or relating to methods of liquid casting Expired GB615484A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL248875X 1942-04-13

Publications (1)

Publication Number Publication Date
GB615484A true GB615484A (en) 1949-01-06

Family

ID=19780973

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17282/46A Expired GB615484A (en) 1942-04-13 1946-06-06 Improvements in or relating to methods of liquid casting

Country Status (4)

Country Link
BE (1) BE450733A (en)
CH (1) CH248875A (en)
GB (1) GB615484A (en)
NL (1) NL60992C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755327A (en) * 1948-05-26 1956-07-17 Ajax Engineering Corp Device for the discharge of molten metal
US3019495A (en) * 1958-05-28 1962-02-06 Litemetal Dicast Inc Die casting
US4417617A (en) * 1978-02-03 1983-11-29 Cabot Corporation Apparatus for vacuum casting of rods
US4907642A (en) * 1987-05-27 1990-03-13 Centre National De La Recherche Scientifique (Cnrs) Chill moulding process, particularly for metals, and apparatus and mold for use therein
CN102941335A (en) * 2012-10-26 2013-02-27 杭州永磁集团有限公司 Vacuum suction casting device, formula and preparation method for AlNiCo permanent-magnet alloy casting
CN109622922A (en) * 2019-01-31 2019-04-16 重庆长安汽车股份有限公司 A kind of casting device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755327A (en) * 1948-05-26 1956-07-17 Ajax Engineering Corp Device for the discharge of molten metal
US3019495A (en) * 1958-05-28 1962-02-06 Litemetal Dicast Inc Die casting
US4417617A (en) * 1978-02-03 1983-11-29 Cabot Corporation Apparatus for vacuum casting of rods
US4907642A (en) * 1987-05-27 1990-03-13 Centre National De La Recherche Scientifique (Cnrs) Chill moulding process, particularly for metals, and apparatus and mold for use therein
CN102941335A (en) * 2012-10-26 2013-02-27 杭州永磁集团有限公司 Vacuum suction casting device, formula and preparation method for AlNiCo permanent-magnet alloy casting
CN102941335B (en) * 2012-10-26 2015-04-01 杭州永磁集团有限公司 Vacuum suction casting device, formula and preparation method for AlNiCo permanent-magnet alloy casting
CN109622922A (en) * 2019-01-31 2019-04-16 重庆长安汽车股份有限公司 A kind of casting device

Also Published As

Publication number Publication date
CH248875A (en) 1947-05-31
BE450733A (en)
NL60992C (en)

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