CA2200167A1 - Method for Producing Composite Insulator - Google Patents

Method for Producing Composite Insulator

Info

Publication number
CA2200167A1
CA2200167A1 CA2200167A CA2200167A CA2200167A1 CA 2200167 A1 CA2200167 A1 CA 2200167A1 CA 2200167 A CA2200167 A CA 2200167A CA 2200167 A CA2200167 A CA 2200167A CA 2200167 A1 CA2200167 A1 CA 2200167A1
Authority
CA
Canada
Prior art keywords
core rod
cavity
metal fittings
portions
sheath
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.)
Granted
Application number
CA2200167A
Other languages
French (fr)
Other versions
CA2200167C (en
Inventor
Hiroshi Kashiwagi
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators 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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of CA2200167A1 publication Critical patent/CA2200167A1/en
Application granted granted Critical
Publication of CA2200167C publication Critical patent/CA2200167C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/72Encapsulating inserts having non-encapsulated projections, e.g. extremities or terminal portions of electrical components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/0055Moulds or cores; Details thereof or accessories therefor with incorporated overflow cavities
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/12Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B29C33/123Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels for centering the inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/34Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3412Insulators

Abstract

When producing a sheath and shed portions of a composite insulator having a core rod 4, grasping metal fittings 5, 6 engagingly fitted and fixed at both end portions of the core rod, the sheath covering the core rod between the grasping metal fittings on the whole circumference of the core rod, and a plurality of shed portions extruding radially outwardly from the sheath at plural positions spaced from each other in the longitudinal direction of the core rod, by filling an insulative high molecular material and subsequent vulcanization thereof in the cavity 3 of the molding die portions, comprising the steps of positioning and retaining the core rod 4 at a desired position in the cavity of the molding die portions by means of retaining rings 7, 8 engagingly fitted on the grasping metal fittings 5, 6, and allowing an excess portion of the insulative high molecular material filled in the cavity to flow out to the exterior of the cavity between the grasping metal fittings 5, 6 and the retaining rings 7, 8.
CA002200167A 1996-03-18 1997-03-17 Method for producing composite insulator Expired - Fee Related CA2200167C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8061031A JP2938801B2 (en) 1996-03-18 1996-03-18 Manufacturing method of composite insulator and retaining ring of core rod to mold
JP8-61,031 1996-03-18

Publications (2)

Publication Number Publication Date
CA2200167A1 true CA2200167A1 (en) 1997-09-18
CA2200167C CA2200167C (en) 1999-10-19

Family

ID=13159522

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002200167A Expired - Fee Related CA2200167C (en) 1996-03-18 1997-03-17 Method for producing composite insulator

Country Status (5)

Country Link
US (2) US5811049A (en)
EP (1) EP0796722B1 (en)
JP (1) JP2938801B2 (en)
CA (1) CA2200167C (en)
DE (1) DE69710624T2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10155227A (en) * 1996-11-21 1998-06-09 Furukawa Electric Co Ltd:The Molded body made of rubber having deep-slot umbrella and manufacture thereof
JP3421353B2 (en) * 1997-03-11 2003-06-30 日本碍子株式会社 Manufacturing method of composite insulator and packing member used therefor
DE19734362A1 (en) * 1997-08-08 1999-02-11 Haefely Trench Mwb Gmbh Process and form for manufacturing shield insulators
JP3373789B2 (en) * 1998-08-17 2003-02-04 日本碍子株式会社 Method for forming sheath of polymer insulator
US6282783B1 (en) 1999-04-09 2001-09-04 Ngk Insulators, Ltd. Composite electrical insulator, method of assembling same and method of manufacturing same
GB0127154D0 (en) * 2001-11-13 2002-01-02 Bae Systems Plc A mould tool
JP4542382B2 (en) * 2004-07-05 2010-09-15 株式会社日立製作所 Transfer printing plate holding structure
CN100341077C (en) * 2004-07-09 2007-10-03 上海Mwb互感器有限公司 Method for mfg. composite isolators and mould thereof
EP2075803A1 (en) * 2007-12-21 2009-07-01 ABB Technology AG Apparatus for controlled molding and demolding of composite insulators
US9198675B2 (en) 2009-09-24 2015-12-01 Imds Llc Reciprocating surgical instrument
WO2012143620A1 (en) * 2011-04-19 2012-10-26 Sediver Societe Europeenne D'isolateurs En Verre Et Composite Method of manufacturing a composite insulator using a resin with high thermal performance
CN107972278B (en) * 2017-12-06 2020-06-19 首都航天机械公司 T-shaped structure composite ejector rod blank thermoplastic forming device and forming method
CN109483797A (en) * 2018-12-24 2019-03-19 大连北方互感器集团有限公司 A kind of mutual inductor rubber injection mold
CN111952025B (en) * 2020-08-28 2022-04-05 江苏祥源电气设备有限公司 Single-lug and double-lug insulator crimping process
CN111952027B (en) * 2020-09-20 2021-12-31 扬州市耐特电工绝缘有限公司 Composite insulator production and manufacturing process
CN113370436B (en) * 2021-08-13 2021-10-12 新沂市向荣电子有限公司 Electric insulator forming processing equipment and processing technology
CN114770822B (en) * 2022-04-28 2023-08-25 株洲时代瑞唯减振装备有限公司 Split type multi-layer partition plate rapid die-filling device and method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405083A (en) * 1982-03-19 1983-09-20 Northern Telecom Limited Moulding apparatus for encapsulating cable splices
FR2543356B1 (en) * 1983-03-25 1986-01-10 Ceraver METHOD AND DEVICE FOR MOLDING THE INSULATING COATING OF A LARGE ORGANIC INSULATOR
JPS60182141A (en) * 1984-02-29 1985-09-17 Hitachi Ltd Molding mold
AT386800B (en) * 1987-05-13 1988-10-10 Ifw Manfred Otte Ges M B H & C INJECTION MOLD
JPH05138691A (en) * 1991-07-19 1993-06-08 Toshiba Chem Corp Mold for injection molding of liquid resin
US5356587A (en) * 1991-10-14 1994-10-18 Toyoda Gosei Co., Ltd. Process for producing hose having connecting portion
JP2588676B2 (en) * 1992-12-28 1997-03-05 日本碍子株式会社 Non-ceramic insulator forming equipment
US5523038A (en) * 1993-03-26 1996-06-04 Ngk Insulators, Ltd. Process and an apparatus for producing insulators
JP2824025B2 (en) * 1994-12-27 1998-11-11 日本碍子株式会社 Composite insulator and manufacturing method thereof
JP2971774B2 (en) * 1995-03-20 1999-11-08 日本碍子株式会社 Release jig for polymer material mold
JP2905416B2 (en) * 1995-03-20 1999-06-14 日本碍子株式会社 End part forming method of composite insulator and end part forming jig used therefor
JP2804451B2 (en) * 1995-03-23 1998-09-24 日本碍子株式会社 Compression molding dies for composite insulator production

Also Published As

Publication number Publication date
EP0796722A2 (en) 1997-09-24
JP2938801B2 (en) 1999-08-25
DE69710624D1 (en) 2002-04-04
EP0796722B1 (en) 2002-02-27
JPH09248831A (en) 1997-09-22
US5811049A (en) 1998-09-22
US6033201A (en) 2000-03-07
CA2200167C (en) 1999-10-19
DE69710624T2 (en) 2002-10-31
EP0796722A3 (en) 2000-02-09

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Legal Events

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EEER Examination request
MKLA Lapsed