GB2006069A - Metal casting cores - Google Patents

Metal casting cores

Info

Publication number
GB2006069A
GB2006069A GB7838909A GB7838909A GB2006069A GB 2006069 A GB2006069 A GB 2006069A GB 7838909 A GB7838909 A GB 7838909A GB 7838909 A GB7838909 A GB 7838909A GB 2006069 A GB2006069 A GB 2006069A
Authority
GB
United Kingdom
Prior art keywords
coil
passageway
wires
casting cores
core
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.)
Withdrawn
Application number
GB7838909A
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.)
STERLING METALS Ltd
Original Assignee
STERLING METALS 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 STERLING METALS Ltd filed Critical STERLING METALS Ltd
Priority to GB7838909A priority Critical patent/GB2006069A/en
Publication of GB2006069A publication Critical patent/GB2006069A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/106—Vented or reinforced cores

Abstract

Casting cores are formed from a helical coil of wire, the coil 1 having an outer diameter corresponding to the desired bore of a passageway. To hold the coil in shape, a support wire 2 is provided, passing down the centre of the coil, of stiff material which easily takes a permanent set, such as mild steel or aluminium. After casting, the core is removed by gripping the wires, and pulling them out of the passageway. The surface finish of the passageway may be improved by investing the shaped coil with a smooth coating of suitable heat resisting material e.g. talc or plumbago. The ends of the core wires may be encased in sand prints, 10, 11, for improved accuracy of location in the mould. Divided passageways can be made by joining lengths of coil and stiffening wires. <IMAGE>
GB7838909A 1977-10-15 1978-10-02 Metal casting cores Withdrawn GB2006069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7838909A GB2006069A (en) 1977-10-15 1978-10-02 Metal casting cores

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4298177 1977-10-15
GB7838909A GB2006069A (en) 1977-10-15 1978-10-02 Metal casting cores

Publications (1)

Publication Number Publication Date
GB2006069A true GB2006069A (en) 1979-05-02

Family

ID=26265015

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7838909A Withdrawn GB2006069A (en) 1977-10-15 1978-10-02 Metal casting cores

Country Status (1)

Country Link
GB (1) GB2006069A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2464767A1 (en) * 1979-09-15 1981-03-20 Kloth Senking Metallgiesserei CORE FOR CASTING PARTS HAVING NARROW CHANNELS
FR2625455A1 (en) * 1987-12-30 1989-07-07 Zenith Fonderie Sa Method and device for making moulded pieces
US20140202650A1 (en) * 2013-01-23 2014-07-24 Sikorsky Aircraft Corporation Quasi self-destructive core for investment casting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2464767A1 (en) * 1979-09-15 1981-03-20 Kloth Senking Metallgiesserei CORE FOR CASTING PARTS HAVING NARROW CHANNELS
FR2625455A1 (en) * 1987-12-30 1989-07-07 Zenith Fonderie Sa Method and device for making moulded pieces
US20140202650A1 (en) * 2013-01-23 2014-07-24 Sikorsky Aircraft Corporation Quasi self-destructive core for investment casting

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)