JPS5357478A - Manufacturing process of highly-foamed insulated cable - Google Patents

Manufacturing process of highly-foamed insulated cable

Info

Publication number
JPS5357478A
JPS5357478A JP13161676A JP13161676A JPS5357478A JP S5357478 A JPS5357478 A JP S5357478A JP 13161676 A JP13161676 A JP 13161676A JP 13161676 A JP13161676 A JP 13161676A JP S5357478 A JPS5357478 A JP S5357478A
Authority
JP
Japan
Prior art keywords
insulated cable
highly
manufacturing process
foamed insulated
foamed
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
JP13161676A
Other languages
Japanese (ja)
Other versions
JPS5730251B2 (en
Inventor
Hiroshi Shinba
Masao Yuto
Fumio Suzuki
Tetsuo Miyanochi
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 JP13161676A priority Critical patent/JPS5357478A/en
Publication of JPS5357478A publication Critical patent/JPS5357478A/en
Publication of JPS5730251B2 publication Critical patent/JPS5730251B2/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
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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

Landscapes

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

Abstract

PURPOSE:To produce an insulated cable of uniformly and highly foamed polyolefin with a foaming rate higher than 300% by making the first extruding machine equal with or above the second one in numbers of screw-revolutions in two connected extruding machines.
JP13161676A 1976-11-04 1976-11-04 Manufacturing process of highly-foamed insulated cable Granted JPS5357478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13161676A JPS5357478A (en) 1976-11-04 1976-11-04 Manufacturing process of highly-foamed insulated cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13161676A JPS5357478A (en) 1976-11-04 1976-11-04 Manufacturing process of highly-foamed insulated cable

Publications (2)

Publication Number Publication Date
JPS5357478A true JPS5357478A (en) 1978-05-24
JPS5730251B2 JPS5730251B2 (en) 1982-06-28

Family

ID=15062219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13161676A Granted JPS5357478A (en) 1976-11-04 1976-11-04 Manufacturing process of highly-foamed insulated cable

Country Status (1)

Country Link
JP (1) JPS5357478A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4841284A (en) * 1971-09-27 1973-06-16
JPS4998875A (en) * 1973-01-13 1974-09-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4841284A (en) * 1971-09-27 1973-06-16
JPS4998875A (en) * 1973-01-13 1974-09-18

Also Published As

Publication number Publication date
JPS5730251B2 (en) 1982-06-28

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