BE805612A - Thermoplastic resin sheath - by extruding tube with internal helical rib, and engaging central part of rib on support eg electric wire - Google Patents

Thermoplastic resin sheath - by extruding tube with internal helical rib, and engaging central part of rib on support eg electric wire

Info

Publication number
BE805612A
BE805612A BE136296A BE136296A BE805612A BE 805612 A BE805612 A BE 805612A BE 136296 A BE136296 A BE 136296A BE 136296 A BE136296 A BE 136296A BE 805612 A BE805612 A BE 805612A
Authority
BE
Belgium
Prior art keywords
rib
thermoplastic resin
support
electric wire
central part
Prior art date
Application number
BE136296A
Other languages
French (fr)
Original Assignee
Sumitomo Chemical Co
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 Chemical Co filed Critical Sumitomo Chemical Co
Priority to BE136296A priority Critical patent/BE805612A/en
Publication of BE805612A publication Critical patent/BE805612A/en

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
    • B29C48/03—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
    • B29C48/03—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-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
    • B29C48/03—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
    • B29C48/131—Curved articles
    • 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
    • B29C48/25—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
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Details Of Indoor Wiring (AREA)

Abstract

Thermoplastic resin sheath is formed continuously by (a) extruding a tube of thermoplastic resin with an internal rib through a die, while rotating a rib-forming slot in order to form a helical rib, and (b) engaging the central part of this rib on a support material esp. a metallic tube, e.g. a copper central heating pipe, or an electric wire. Method provides a layer of air between the support matl. and the sheath. A flexible sheath with a stable resistance to external forces is formed.
BE136296A 1973-10-03 1973-10-03 Thermoplastic resin sheath - by extruding tube with internal helical rib, and engaging central part of rib on support eg electric wire BE805612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE136296A BE805612A (en) 1973-10-03 1973-10-03 Thermoplastic resin sheath - by extruding tube with internal helical rib, and engaging central part of rib on support eg electric wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE136296A BE805612A (en) 1973-10-03 1973-10-03 Thermoplastic resin sheath - by extruding tube with internal helical rib, and engaging central part of rib on support eg electric wire

Publications (1)

Publication Number Publication Date
BE805612A true BE805612A (en) 1974-02-01

Family

ID=3842263

Family Applications (1)

Application Number Title Priority Date Filing Date
BE136296A BE805612A (en) 1973-10-03 1973-10-03 Thermoplastic resin sheath - by extruding tube with internal helical rib, and engaging central part of rib on support eg electric wire

Country Status (1)

Country Link
BE (1) BE805612A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469269A1 (en) * 1979-11-09 1981-05-22 Wieland Werke Ag METHOD AND DEVICE FOR MANUFACTURING AN INSULATED TUBE
FR2494626A1 (en) * 1980-11-21 1982-05-28 Mihama Mfg PROCESS AND APPARATUS FOR MANUFACTURING SYNTHETIC RESIN TURBULENCE ELEMENTS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469269A1 (en) * 1979-11-09 1981-05-22 Wieland Werke Ag METHOD AND DEVICE FOR MANUFACTURING AN INSULATED TUBE
FR2494626A1 (en) * 1980-11-21 1982-05-28 Mihama Mfg PROCESS AND APPARATUS FOR MANUFACTURING SYNTHETIC RESIN TURBULENCE ELEMENTS

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