GB1421109A - Process fro producting electric cable insulated with cured polymeric material - Google Patents

Process fro producting electric cable insulated with cured polymeric material

Info

Publication number
GB1421109A
GB1421109A GB2603074A GB2603074A GB1421109A GB 1421109 A GB1421109 A GB 1421109A GB 2603074 A GB2603074 A GB 2603074A GB 2603074 A GB2603074 A GB 2603074A GB 1421109 A GB1421109 A GB 1421109A
Authority
GB
United Kingdom
Prior art keywords
polymer
cooling
die
electric cable
june
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
GB2603074A
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.)
Dainichi Nippon Cables Ltd
Mitsubishi Petrochemical Co Ltd
Original Assignee
Dainichi Nippon Cables Ltd
Mitsubishi Petrochemical 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 Dainichi Nippon Cables Ltd, Mitsubishi Petrochemical Co Ltd filed Critical Dainichi Nippon Cables Ltd
Publication of GB1421109A publication Critical patent/GB1421109A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion 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
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion 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
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2301/00—Use of unspecified macromolecular compounds as reinforcement
    • B29K2301/10—Thermosetting resins

Abstract

1421109 Extrusion coating cables DAINICHI-NIPPON CABLES Ltd and MITSUBISHI PETROCHEMICAL CO Ltd 12 June 1974 [12 June 1973] 26030/74 Heading B5A [Also in Division H1] An electric cable is produced by extruding a crystalline polymer and a cross-linking agent R on to a conductor 1 in a long-land die 3 (1 to 50 m. long) to the inner surface of which a lubricant 4 is fed, curing the polymer, and cooling the polymer in a main cooling apparatus 52 containing pressurized cooling fluid after passage through a relatively mild cooling zone 51 contain fluid (which may also be pressurized) at between 40‹ C. and the melting point of the polymer. Braking is applied to the conductor to compensate for the pull exerted on the cable covering by the pressure of the cooling fluid in the manner-described in Specification 1,408,947. The lubricants described in Specification 1,380,942 are supplied from an annular reservoir 42 through a slit 43 in the die 3. The polymer may be a polyolefin or copolymers of poly-α- olefins such as E.V.A. Several extruders are connected to a cross head die to form semiconductive and insulating layers on bare or nylon cloth coated conductors.
GB2603074A 1973-06-12 1974-06-12 Process fro producting electric cable insulated with cured polymeric material Expired GB1421109A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48066541A JPS5013894A (en) 1973-06-12 1973-06-12

Publications (1)

Publication Number Publication Date
GB1421109A true GB1421109A (en) 1976-01-14

Family

ID=13318852

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2603074A Expired GB1421109A (en) 1973-06-12 1974-06-12 Process fro producting electric cable insulated with cured polymeric material

Country Status (4)

Country Link
JP (1) JPS5013894A (en)
DE (1) DE2428122A1 (en)
FR (1) FR2233172B1 (en)
GB (1) GB1421109A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118191A (en) * 1982-03-31 1983-10-26 Pirelli General Plc Curing of insulated electric cables
US4492662A (en) * 1983-04-28 1985-01-08 Pirelli General Plc Manufacture of insulated electric cables

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56159010A (en) * 1980-05-14 1981-12-08 Furukawa Electric Co Ltd Method of manufacturing crosslinked polyethylene insulated power cable
JPS5963366A (en) * 1982-10-01 1984-04-11 Mitsubishi Motors Corp Ignition timing controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118191A (en) * 1982-03-31 1983-10-26 Pirelli General Plc Curing of insulated electric cables
US4492662A (en) * 1983-04-28 1985-01-08 Pirelli General Plc Manufacture of insulated electric cables

Also Published As

Publication number Publication date
FR2233172A1 (en) 1975-01-10
FR2233172B1 (en) 1978-02-17
DE2428122A1 (en) 1975-01-09
JPS5013894A (en) 1975-02-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19940611