FR2246380A1 - 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
FR2246380A1
FR2246380A1 FR7335562A FR7335562A FR2246380A1 FR 2246380 A1 FR2246380 A1 FR 2246380A1 FR 7335562 A FR7335562 A FR 7335562A FR 7335562 A FR7335562 A FR 7335562A FR 2246380 A1 FR2246380 A1 FR 2246380A1
Authority
FR
France
Prior art keywords
rib
thermoplastic resin
support
electric wire
central part
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.)
Withdrawn
Application number
FR7335562A
Other languages
French (fr)
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 Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co 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 Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to FR7335562A priority Critical patent/FR2246380A1/en
Publication of FR2246380A1 publication Critical patent/FR2246380A1/en
Withdrawn legal-status Critical Current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
    • B29C48/33—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
    • 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
    • B29C48/131—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
    • B29C48/301—Extrusion nozzles or dies having reciprocating, oscillating or rotating parts
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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

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.
FR7335562A 1973-10-04 1973-10-04 Thermoplastic resin sheath - by extruding tube with internal helical rib, and engaging central part of rib on support eg electric wire Withdrawn FR2246380A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7335562A FR2246380A1 (en) 1973-10-04 1973-10-04 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
FR7335562A FR2246380A1 (en) 1973-10-04 1973-10-04 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
FR2246380A1 true FR2246380A1 (en) 1975-05-02

Family

ID=9125939

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7335562A Withdrawn FR2246380A1 (en) 1973-10-04 1973-10-04 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
FR (1) FR2246380A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0385479A2 (en) * 1989-03-03 1990-09-05 Toyox Co., Ltd. Apparatus for producing pipes with a helical rib
WO1991008098A1 (en) * 1989-12-01 1991-06-13 Meteor Gummiwerke K.H. Bädje Gmbh & Co. Hose-manufacturing device and hose produced by the device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0385479A2 (en) * 1989-03-03 1990-09-05 Toyox Co., Ltd. Apparatus for producing pipes with a helical rib
EP0385479A3 (en) * 1989-03-03 1991-04-24 Toyox Co., Ltd. Apparatus for producing pipes with a helical rib
WO1991008098A1 (en) * 1989-12-01 1991-06-13 Meteor Gummiwerke K.H. Bädje Gmbh & Co. Hose-manufacturing device and hose produced by the device

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Legal Events

Date Code Title Description
ST Notification of lapse