GB586209A - Improvements relating to the vulcanising or like heat treatment of the rubber or other coverings of insulated electric wires - Google Patents

Improvements relating to the vulcanising or like heat treatment of the rubber or other coverings of insulated electric wires

Info

Publication number
GB586209A
GB586209A GB16916/44A GB1691644A GB586209A GB 586209 A GB586209 A GB 586209A GB 16916/44 A GB16916/44 A GB 16916/44A GB 1691644 A GB1691644 A GB 1691644A GB 586209 A GB586209 A GB 586209A
Authority
GB
United Kingdom
Prior art keywords
heated
chamber
heating
covering
tubular
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
GB16916/44A
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.)
WT Henleys Telegraph Works Co Ltd
Original Assignee
WT Henleys Telegraph Works 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 WT Henleys Telegraph Works Co Ltd filed Critical WT Henleys Telegraph Works Co Ltd
Priority to GB16916/44A priority Critical patent/GB586209A/en
Publication of GB586209A publication Critical patent/GB586209A/en
Expired 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
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/12Dielectric heating
    • B29C35/14Dielectric heating for articles of indefinite length
    • 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
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0277Apparatus with continuous transport of the material to be cured
    • 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
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C2035/0211Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould resistance heating
    • 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
    • B29C2791/00Shaping characteristics in general
    • B29C2791/001Shaping in several steps
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05Filamentary, e.g. strands
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06Rod-shaped
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154Coating solid articles, i.e. non-hollow articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00Use of unspecified rubbers as moulding material
    • 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
    • B29L2031/3462Cables

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

586,209. Electric heating. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and MACDONALD, H. A. Sept. 5, 1944, No. 16916. [Class 39 (iii)] Apparatus for heat treating a non-conductive covering of an electric wire passing therethrough, comprises a first part in which the covering is heated to the treatment temperature in a short period of time by the dielectric loss method, and a second part in which this temperature is maintained for a relatively long period of time by some other method of heating. As shown in the drawing, two tubular electrodes 3, 4 and a tubular chamber 10, e.g., of metal, forming the first and second heating chambers respectively, and the nozzle 16 of an extrusion machine, are axially aligned and separated by short insulating tubes 5, 11, 15. The electrodes 3, 4 are housed in a tubular screen 7 and connected to a high frequency electric source 9. The chamber 10 is heated by the passage of a heavy current from a source 13. An earthed wire 1, emerging from the nozzle 16 with a covering 2, e.g., of natural or synthetic rubber, passes with a small clearance through the aligned members and may be supported at intervals, as by a roller 19 housed in a pocket in the chamber 10. This chamber has an end piece 18 which may constitute a sealing gland for treatments at high pressures. The second heating chamber may be from five to fifteen times the length of the first and may be heated by other means. For example, it may be flooded with, or surrounded by, a heated vapour, or it may be heated by gas flames. It may also be compacted to offer an extended path to the covered wire, such as a helix comprising a number of turns. Specification 554,854 is referred to.
GB16916/44A 1944-09-05 1944-09-05 Improvements relating to the vulcanising or like heat treatment of the rubber or other coverings of insulated electric wires Expired GB586209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16916/44A GB586209A (en) 1944-09-05 1944-09-05 Improvements relating to the vulcanising or like heat treatment of the rubber or other coverings of insulated electric wires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16916/44A GB586209A (en) 1944-09-05 1944-09-05 Improvements relating to the vulcanising or like heat treatment of the rubber or other coverings of insulated electric wires

Publications (1)

Publication Number Publication Date
GB586209A true GB586209A (en) 1947-03-11

Family

ID=10085986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16916/44A Expired GB586209A (en) 1944-09-05 1944-09-05 Improvements relating to the vulcanising or like heat treatment of the rubber or other coverings of insulated electric wires

Country Status (1)

Country Link
GB (1) GB586209A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0845341A1 (en) * 1996-12-02 1998-06-03 Ilpea Gomma SpA Method to vulcanize rubber articles or profiles and relative device
EP3059741A1 (en) * 2015-02-18 2016-08-24 Maillefer S.A. Method and arrangement for cross-linking or vulcanizing an elongate element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0845341A1 (en) * 1996-12-02 1998-06-03 Ilpea Gomma SpA Method to vulcanize rubber articles or profiles and relative device
EP3059741A1 (en) * 2015-02-18 2016-08-24 Maillefer S.A. Method and arrangement for cross-linking or vulcanizing an elongate element
US9856351B2 (en) 2015-02-18 2018-01-02 Maillefer S.A. Method and arrangement for cross-linking or vulcanizing an elongate element
TWI688972B (en) * 2015-02-18 2020-03-21 瑞士商美莉佛公司 Method and arrangement for cross-linking or vulcanizing an elongate element

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