JPS5494686A - Method for forming insulation layer on coaxial cable - Google Patents

Method for forming insulation layer on coaxial cable

Info

Publication number
JPS5494686A
JPS5494686A JP64278A JP64278A JPS5494686A JP S5494686 A JPS5494686 A JP S5494686A JP 64278 A JP64278 A JP 64278A JP 64278 A JP64278 A JP 64278A JP S5494686 A JPS5494686 A JP S5494686A
Authority
JP
Japan
Prior art keywords
insulation layer
plastic tube
center
coaxial cable
corder
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
JP64278A
Other languages
Japanese (ja)
Other versions
JPS5952494B2 (en
Inventor
Toshio Suzuki
Yujiro Hashimoto
Naoyuki Iwasaki
Mitsuru Nomura
Akira Watanabe
Koichi Abe
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP53000642A priority Critical patent/JPS5952494B2/en
Publication of JPS5494686A publication Critical patent/JPS5494686A/en
Publication of JPS5952494B2 publication Critical patent/JPS5952494B2/en
Expired 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
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Waveguides (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)

Abstract

PURPOSE:To flaten the upper portion of insulation layer by forming the insulation layer in such a manner that the central conductor is passed below the center of the base of plastic tube extruder. CONSTITUTION:Plastic tube 3 is extrusion coated over Corder string 2 through cross head 25 constituted such that the center B of nipple 27 of extruder is lower by the distance d than the center A of the base 26. Consequently when adjusting the distance d the position where the upper and lower portions of plastic tube 3 adhere with the Corder string 2 can be equalized, while the water wiper 8 can cool the proximity of adhering position of upper and lower portions thereby the insulation layer having non-waved plastic tube 3 is obtained.
JP53000642A 1978-01-06 1978-01-06 Coaxial cable insulation layer forming method Expired JPS5952494B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53000642A JPS5952494B2 (en) 1978-01-06 1978-01-06 Coaxial cable insulation layer forming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53000642A JPS5952494B2 (en) 1978-01-06 1978-01-06 Coaxial cable insulation layer forming method

Publications (2)

Publication Number Publication Date
JPS5494686A true JPS5494686A (en) 1979-07-26
JPS5952494B2 JPS5952494B2 (en) 1984-12-20

Family

ID=11479352

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53000642A Expired JPS5952494B2 (en) 1978-01-06 1978-01-06 Coaxial cable insulation layer forming method

Country Status (1)

Country Link
JP (1) JPS5952494B2 (en)

Also Published As

Publication number Publication date
JPS5952494B2 (en) 1984-12-20

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