ES404064A2 - Manufacture of insulated electric cables - Google Patents

Manufacture of insulated electric cables

Info

Publication number
ES404064A2
ES404064A2 ES404064A ES404064A ES404064A2 ES 404064 A2 ES404064 A2 ES 404064A2 ES 404064 A ES404064 A ES 404064A ES 404064 A ES404064 A ES 404064A ES 404064 A2 ES404064 A2 ES 404064A2
Authority
ES
Spain
Prior art keywords
extrusion
extruded
core
extruded layer
layer
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
ES404064A
Other languages
Spanish (es)
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Publication of ES404064A2 publication Critical patent/ES404064A2/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
    • B29C48/06—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
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • B29C48/338—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location using a die with concentric parts, e.g. rings, cylinders
    • 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
    • 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
    • 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

Abstract

Improvements introduced in the object of the main patent nº 368.028, issued on March 10, 1971, for "A METHOD OF MANUFACTURING A COMPOSITE COATING BY EXTRUSION ON A SOUL OF AN ELECTRICAL CONDUCTOR", whose improvements include making the core go through the core tube of an extrusion machine, which feeds peripherally continuous extruded layers of the coating materials simultaneously to the exit end of the extrusion machine, causing the extruded layers to come into full and intimate interfacial contact, and continuous treatment of the composite coating thus formed by passing the coated core through a chamber hermetically closed with respect to the outlet end of the extrusion machine and containing a fluid agent at pressure higher than atmospheric, in which the first layer is extruded directly onto the core by pressure extrusion, and at the same time fluid pre sion is injected between the first extruded layer and the second extruded layer and is maintained at a pressure that is less than that of the fluid agent in such an amount that the pressure difference across the second extruded layer in the extrusion orifice is sufficient to make the second extruded layer fit tightly over the first extruded layer as the coated core exits the extrusion machine, but is insufficient to drive the second extruded layer back into the extrusion hole. (Machine-translation by Google Translate, not legally binding)
ES404064A 1971-06-21 1972-06-20 Manufacture of insulated electric cables Expired ES404064A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2896671A GB1372587A (en) 1971-06-21 1971-06-21 Manufacture of insulated electric cables

Publications (1)

Publication Number Publication Date
ES404064A2 true ES404064A2 (en) 1975-08-01

Family

ID=10284088

Family Applications (2)

Application Number Title Priority Date Filing Date
ES404064A Expired ES404064A2 (en) 1971-06-21 1972-06-20 Manufacture of insulated electric cables
ES404065A Expired ES404065A2 (en) 1971-06-21 1972-06-20 Manufacture of insulated electric cables

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES404065A Expired ES404065A2 (en) 1971-06-21 1972-06-20 Manufacture of insulated electric cables

Country Status (12)

Country Link
JP (1) JPS5315102B1 (en)
AU (1) AU449181B2 (en)
CA (1) CA997511A (en)
CH (1) CH560954A5 (en)
DE (1) DE2229949A1 (en)
ES (2) ES404064A2 (en)
FR (1) FR2143150B2 (en)
GB (1) GB1372587A (en)
IT (1) IT1045420B (en)
SE (1) SE386301B (en)
SU (1) SU528045A3 (en)
ZA (1) ZA724012B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE417655B (en) * 1977-12-30 1981-03-30 Ericsson Telefon Ab L M PROCEDURE FOR VOLCANIZATION OF THE ISOLAR LAYER ON AN ELECTRIC CABLE
JPS5788290A (en) * 1980-11-20 1982-06-02 Tsurumi Seisakusho:Kk Submergible pump
FR2565887A1 (en) * 1984-06-14 1985-12-20 Ems Extrusion Continuous vulcanisation and/or crosslinking line, especially for producing insulating synthetic layers on cables
JPH0449689U (en) * 1990-09-01 1992-04-27
RU2662015C1 (en) * 2017-04-10 2018-07-23 Общество С Ограниченной Ответственностью "Анизопринт" Print head for additive production
CN112687433B (en) * 2020-12-25 2022-06-07 厦门市能诚电子科技有限公司 Power line cladding production system
CN113436811B (en) * 2021-07-01 2022-06-07 广东金源宇电线电缆有限公司 Cable anti-oxidation wrapping device and method
CN113871099B (en) * 2021-11-03 2023-07-21 欧耐特线缆集团有限公司 High-efficiency green production line and method for high-voltage cable
CN114474668B (en) * 2022-03-03 2024-04-05 浙江元通线缆制造有限公司 Three-layer co-extrusion machine head, production process thereof and cable produced by adopting process

Also Published As

Publication number Publication date
SE386301B (en) 1976-08-02
FR2143150A2 (en) 1973-02-02
DE2229949A1 (en) 1973-01-11
IT1045420B (en) 1980-05-10
JPS5315102B1 (en) 1978-05-22
ES404065A2 (en) 1975-06-01
CA997511A (en) 1976-09-28
CH560954A5 (en) 1975-04-15
AU4373072A (en) 1974-01-03
FR2143150B2 (en) 1977-12-23
SU528045A3 (en) 1976-09-05
AU449181B2 (en) 1974-06-06
ZA724012B (en) 1973-03-28
GB1372587A (en) 1974-10-30

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