JPS55156035A - Method of extrusion molding foamed plastic insulated wire - Google Patents

Method of extrusion molding foamed plastic insulated wire

Info

Publication number
JPS55156035A
JPS55156035A JP6476679A JP6476679A JPS55156035A JP S55156035 A JPS55156035 A JP S55156035A JP 6476679 A JP6476679 A JP 6476679A JP 6476679 A JP6476679 A JP 6476679A JP S55156035 A JPS55156035 A JP S55156035A
Authority
JP
Japan
Prior art keywords
cooling device
insulated wire
foaming
correspondence
extruder
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
JP6476679A
Other languages
Japanese (ja)
Other versions
JPS6112603B2 (en
Inventor
Yasunori Saito
Masanobu Yoshida
Tamio Tsurita
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP6476679A priority Critical patent/JPS55156035A/en
Publication of JPS55156035A publication Critical patent/JPS55156035A/en
Publication of JPS6112603B2 publication Critical patent/JPS6112603B2/ja
Granted 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • 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

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)

Abstract

PURPOSE:To easily obtain the insulated wire of a uniform foamed structure by carrying out extrusion coating of the wire as the cooling device is moved. CONSTITUTION:As the section length of a space between the outlet of a foaming extruder 2 and the inlet of cooling device members 4 and 5 is varied in correspondence to the deviation from the reference set value of the electrostatic capacity of a foaming insulated wire 3, a foaming plastic insulating material is extruded and applied onto a conductor 1. The colling device is divided in to two separately movable parts 4 and 5, and the part 5 of the cooling device situated closer to the extruder of the cooling device is extrusion-applied while moving the same in correspondence to the short period variation of the deviation from the reference set value of the electrostatic capacity of a foaming insulated wire and the part 4 farther to the extruder of the cooling device is extrusion-applied while moving the same in correspondence to the long period deviation thereof, by driving motors M2 and M1, respectively.
JP6476679A 1979-05-24 1979-05-24 Method of extrusion molding foamed plastic insulated wire Granted JPS55156035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6476679A JPS55156035A (en) 1979-05-24 1979-05-24 Method of extrusion molding foamed plastic insulated wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6476679A JPS55156035A (en) 1979-05-24 1979-05-24 Method of extrusion molding foamed plastic insulated wire

Publications (2)

Publication Number Publication Date
JPS55156035A true JPS55156035A (en) 1980-12-04
JPS6112603B2 JPS6112603B2 (en) 1986-04-09

Family

ID=13267634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6476679A Granted JPS55156035A (en) 1979-05-24 1979-05-24 Method of extrusion molding foamed plastic insulated wire

Country Status (1)

Country Link
JP (1) JPS55156035A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555184A (en) * 2012-02-08 2012-07-11 重庆科宝电缆股份有限公司 Cooling device for preventing ends of extruded cable from being immersed in water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555184A (en) * 2012-02-08 2012-07-11 重庆科宝电缆股份有限公司 Cooling device for preventing ends of extruded cable from being immersed in water

Also Published As

Publication number Publication date
JPS6112603B2 (en) 1986-04-09

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