GB736053A - Extrusion head for providing cables with multi-layer coating - Google Patents

Extrusion head for providing cables with multi-layer coating

Info

Publication number
GB736053A
GB736053A GB16019/53A GB1601953A GB736053A GB 736053 A GB736053 A GB 736053A GB 16019/53 A GB16019/53 A GB 16019/53A GB 1601953 A GB1601953 A GB 1601953A GB 736053 A GB736053 A GB 736053A
Authority
GB
United Kingdom
Prior art keywords
channels
coating
paths
conduit
portions
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.)
Expired
Application number
GB16019/53A
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.)
LAVORAZIONE MAT PLASTICHE Sas
Original Assignee
LAVORAZIONE MAT PLASTICHE Sas
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 LAVORAZIONE MAT PLASTICHE Sas filed Critical LAVORAZIONE MAT PLASTICHE Sas
Publication of GB736053A publication Critical patent/GB736053A/en
Expired legal-status Critical Current

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
    • B29C48/05—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
    • 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
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/20—Inserts
    • 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)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

736,053. Coating cables &c. by extrusion. S.A.S. LAVORAZIONE MATERIE PLASTICHE (L.M.P.) DI M. I. COLOMBO & CO. June 10, 1953 [June 17, 1952], No. 16019/53. Class 87 (2). Two or more coatings of plastic material are applied to a wire or cable by an extrusion machine having two or more presses. From each press the path of the material divides into two, then each of these two paths divided into two paths, so that the material is divided into four portions (or eight portions), Fig. 2 (not shown), by the time it gets to the point of application to the wire. The lengths of the four paths are equal to each other so that the resistances met by the portions of material'are equal to each other. Fig. 3 shows the head of a machine having two presses. 'One press feeds material to a conduit 9 and another press feeds material to a conduit 10. From conduit 9 the material passes into the centre of a semi-circular channel 12, Fig. 4, which feeds at its ends two channels 13, Fig. 5. Each channel 13 then similarly branches through channels 14 into four channels 15, which lead into a space 16 where the material forms a first coating on a wire travelling vertically downwards through members 22, 18, 21. The channels 15, are disposed at the vertices of a regular polygon, as shown a square. The material fed in at 10 follows similar paths, emerging at 19 to form a second coating on the first coating. The various channels are formed in or between eight plates I ... 8 held together by bolts 11. The ratio between the quantities of materials fed by the two temperatures and the temperatures of the materials, may be varied.
GB16019/53A 1952-06-17 1953-06-10 Extrusion head for providing cables with multi-layer coating Expired GB736053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT736053X 1952-06-17

Publications (1)

Publication Number Publication Date
GB736053A true GB736053A (en) 1955-08-31

Family

ID=11315339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16019/53A Expired GB736053A (en) 1952-06-17 1953-06-10 Extrusion head for providing cables with multi-layer coating

Country Status (1)

Country Link
GB (1) GB736053A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753789A (en) * 2014-01-23 2014-04-30 揭阳市广福电子实业有限公司 Multi-layer co-extrusion production method and application thereof
CN114914037A (en) * 2022-04-28 2022-08-16 河北国潜线缆有限责任公司 Continuous production system of cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753789A (en) * 2014-01-23 2014-04-30 揭阳市广福电子实业有限公司 Multi-layer co-extrusion production method and application thereof
CN114914037A (en) * 2022-04-28 2022-08-16 河北国潜线缆有限责任公司 Continuous production system of cable
CN114914037B (en) * 2022-04-28 2024-03-15 河北国潜线缆有限责任公司 Continuous production system of cable

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