JPS5493059A - Production of polymer insulated cable - Google Patents

Production of polymer insulated cable

Info

Publication number
JPS5493059A
JPS5493059A JP16074977A JP16074977A JPS5493059A JP S5493059 A JPS5493059 A JP S5493059A JP 16074977 A JP16074977 A JP 16074977A JP 16074977 A JP16074977 A JP 16074977A JP S5493059 A JPS5493059 A JP S5493059A
Authority
JP
Japan
Prior art keywords
insulated cable
conductor
layer
production
polymer insulated
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.)
Pending
Application number
JP16074977A
Other languages
Japanese (ja)
Inventor
Masaaki Otsuji
Isoji Mogi
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
Original Assignee
Dainichi Nippon Cables 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 filed Critical Dainichi Nippon Cables Ltd
Priority to JP16074977A priority Critical patent/JPS5493059A/en
Publication of JPS5493059A publication Critical patent/JPS5493059A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • 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
    • 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
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3462—Cables

Abstract

PURPOSE:To obtain a polymer insulated cable having a high dielectric strength, by forming an insulation shield layer with extrusion thickening of the layer to a given wall thickness. CONSTITUTION:The insulation shield layer 5, e,g. a semiconductive composition comprising polyethylene, ethylene-vinyl acetate copolymer, carbon black, and a cross-linking agent, and the insulating layer 8 are coextruded on the conductor 3 while making the clearance between the tip of the middle nip 2 and the conductor 3 d to adjust the difference (D-d) between the thickness D after the extrusion thickening and d to 0.2-1.5 mm, preferably 0.3-1.0 mm. The impulse dielectric strength is about 20% higher than that of the cable of the same thickness free from extrusion thickening.
JP16074977A 1977-12-29 1977-12-29 Production of polymer insulated cable Pending JPS5493059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16074977A JPS5493059A (en) 1977-12-29 1977-12-29 Production of polymer insulated cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16074977A JPS5493059A (en) 1977-12-29 1977-12-29 Production of polymer insulated cable

Publications (1)

Publication Number Publication Date
JPS5493059A true JPS5493059A (en) 1979-07-23

Family

ID=15721617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16074977A Pending JPS5493059A (en) 1977-12-29 1977-12-29 Production of polymer insulated cable

Country Status (1)

Country Link
JP (1) JPS5493059A (en)

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