GB1457046A - Dewaxing of moulds - Google Patents

Dewaxing of moulds

Info

Publication number
GB1457046A
GB1457046A GB3254574A GB3254574A GB1457046A GB 1457046 A GB1457046 A GB 1457046A GB 3254574 A GB3254574 A GB 3254574A GB 3254574 A GB3254574 A GB 3254574A GB 1457046 A GB1457046 A GB 1457046A
Authority
GB
United Kingdom
Prior art keywords
mould
moulds
pattern
microwave
hot air
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
GB3254574A
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
Priority to GB3254574A priority Critical patent/GB1457046A/en
Publication of GB1457046A publication Critical patent/GB1457046A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening

Landscapes

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

Abstract

1457046 Foundry moulding; moulds TRW Inc 23 July 1974 32545/74 Headings B3G and B3F [Also in Division H5] A wax-type pattern within a shell mould is removed therefrom by incorporating in the mould a material having a high loss factor of at least 1À0 in the frequency range of 300 to 30,000 megahertz and subjecting the mould to microwave energy in that frequency range to liquefy the pattern. The material may be graphite or carbon and applied as one or more dip coats to the pattern or to the mould outer surface. The microwave treatment may be followed by hot air drying. Mould clusters on pallets, not shown, are received by drive rollers 12 in a compartment 11 of a furnace and, after passing automatically raised and lowered shielding baffles 15, 17 are conveyed to a microwave treating section energized by generators 18, 19 and waveguies 20, 21. The moulds are then subjected to hot air from a blower 31 before leaving the furnace via automatically raised and lowered shielding baffles 25, 26. Molten wax is received by a trough 29.
GB3254574A 1974-07-23 1974-07-23 Dewaxing of moulds Expired GB1457046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3254574A GB1457046A (en) 1974-07-23 1974-07-23 Dewaxing of moulds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3254574A GB1457046A (en) 1974-07-23 1974-07-23 Dewaxing of moulds

Publications (1)

Publication Number Publication Date
GB1457046A true GB1457046A (en) 1976-12-01

Family

ID=10340248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3254574A Expired GB1457046A (en) 1974-07-23 1974-07-23 Dewaxing of moulds

Country Status (1)

Country Link
GB (1) GB1457046A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193870A (en) * 1986-08-06 1988-02-17 Contract Technology Limited Removal of substances from containers
WO2005107977A1 (en) * 2004-05-06 2005-11-17 Process Technology (Europe) Limited Improvements in investment casting
CN107262671A (en) * 2017-07-01 2017-10-20 连云港源钰金属制品有限公司 Lost wax casting technique dewaxing device and method
PL423660A1 (en) * 2017-11-30 2019-06-03 Qbig Ireneusz Slodkowski I Wspolnicy Spolka Komandytowa Method for production of ceramic moulds for precision casting
GB2569814A (en) * 2017-12-23 2019-07-03 Castings Tech International Limited Method of creating a mould from refractory material
CN114653893A (en) * 2022-05-23 2022-06-24 东营福浩精铸科技有限公司 Dry-type steam dewaxing device and dewaxing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193870A (en) * 1986-08-06 1988-02-17 Contract Technology Limited Removal of substances from containers
WO2005107977A1 (en) * 2004-05-06 2005-11-17 Process Technology (Europe) Limited Improvements in investment casting
US7900685B2 (en) 2004-05-06 2011-03-08 Process Technology (Europe) Limited Investment casting
CN107262671A (en) * 2017-07-01 2017-10-20 连云港源钰金属制品有限公司 Lost wax casting technique dewaxing device and method
CN107262671B (en) * 2017-07-01 2023-06-16 连云港源钰金属制品有限公司 Dewaxing equipment and method for dewaxing casting process
PL423660A1 (en) * 2017-11-30 2019-06-03 Qbig Ireneusz Slodkowski I Wspolnicy Spolka Komandytowa Method for production of ceramic moulds for precision casting
GB2569814A (en) * 2017-12-23 2019-07-03 Castings Tech International Limited Method of creating a mould from refractory material
CN114653893A (en) * 2022-05-23 2022-06-24 东营福浩精铸科技有限公司 Dry-type steam dewaxing device and dewaxing method
CN114653893B (en) * 2022-05-23 2023-09-29 东营福浩精铸科技有限公司 Dry type steam dewaxing device and dewaxing method

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee