GB818056A - Improvements in and relating to machines for making wax patterns for casting - Google Patents

Improvements in and relating to machines for making wax patterns for casting

Info

Publication number
GB818056A
GB818056A GB16967/55A GB1696755A GB818056A GB 818056 A GB818056 A GB 818056A GB 16967/55 A GB16967/55 A GB 16967/55A GB 1696755 A GB1696755 A GB 1696755A GB 818056 A GB818056 A GB 818056A
Authority
GB
United Kingdom
Prior art keywords
wax
passage
mould
nozzle
container
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
GB16967/55A
Inventor
John Stratton Turnbull
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Publication of GB818056A publication Critical patent/GB818056A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/34—Moulds having venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/241—Moulding wax

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

818,056. Injection moulding wax patterns. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. Dec. 6, 1955 [June 13, 1955], No. 16967/55. Class 87(2). A machine for making a wax pattern comprises a container 1, 5 having a conduit 15 for connecting it to evacuating means (not shown), a passage 22 provided with valves means 23 for introducing wax into the container whilst maintaining vacuum within it, the container portion 5 being movable to the position 5<SP>1</SP> to provide access to a pressure member 11 carrying a mould 16, 17, the member 11 being movable to bring an ingate 20 of the mould into register with the passage 22 and to apply pressure to the die box. Pneumatic rams 6, 7 move the container portion 5, and a pneumatic ram 14 moves the pressure member 11. The valve means 23 comprises a slidable plate having a passage 24 adapted to be brought into line with the passage 22. An injection nozzle 25 is adapted to be received in a conical seating in the plate 23 and includes a ball valve 32 which closes automatically when the nozzle is removed. Wax is supplied under pressure to the nozzle 25 by a conduit 26 surrounded by an outer conduit 27 which supplies hot water to a cavity 28 in the nozzle to maintain the wax above setting temperature. Air is evacuated from the mould 16, 17 and container 5 either before or during injection of wax, the reduced air pressure holding the wax against the mould walls in spite of any shrinking of the wax. After injection, the ingate 20 may be connected to an air pressure source. The apparatus may be used in the casting of a turbine rotor. Specifications 603,072, 619,286 and 722,816 [Group XXII] are referred to.
GB16967/55A 1955-06-13 1955-06-13 Improvements in and relating to machines for making wax patterns for casting Expired GB818056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1175414X 1955-06-13

Publications (1)

Publication Number Publication Date
GB818056A true GB818056A (en) 1959-08-12

Family

ID=10879832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16967/55A Expired GB818056A (en) 1955-06-13 1955-06-13 Improvements in and relating to machines for making wax patterns for casting

Country Status (2)

Country Link
FR (1) FR1175414A (en)
GB (1) GB818056A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109049453A (en) * 2018-07-19 2018-12-21 芜湖青悠静谧环保科技有限公司 A kind of Polymer Processing machinery shield

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1603845A (en) * 1977-08-24 1981-12-02 British Industrial Plastics Compression moulding machines
GB1603844A (en) * 1977-08-24 1981-12-02 British Industrial Plastics Injection moulding machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109049453A (en) * 2018-07-19 2018-12-21 芜湖青悠静谧环保科技有限公司 A kind of Polymer Processing machinery shield

Also Published As

Publication number Publication date
FR1175414A (en) 1959-03-26

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