GB1479027A - Apparatus for manufacturing cured polyolefin-insulated cables - Google Patents

Apparatus for manufacturing cured polyolefin-insulated cables

Info

Publication number
GB1479027A
GB1479027A GB37800/74A GB3780074A GB1479027A GB 1479027 A GB1479027 A GB 1479027A GB 37800/74 A GB37800/74 A GB 37800/74A GB 3780074 A GB3780074 A GB 3780074A GB 1479027 A GB1479027 A GB 1479027A
Authority
GB
United Kingdom
Prior art keywords
cable
silicone oil
die
zone
tube
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
GB37800/74A
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.)
Fujikura Ltd
Fujikura Cable Works Ltd
Original Assignee
Fujikura Ltd
Fujikura Cable Works 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
Priority claimed from JP48097726A external-priority patent/JPS5233312B2/ja
Priority claimed from JP49012364A external-priority patent/JPS5233314B2/ja
Priority claimed from JP6575974U external-priority patent/JPS58888Y2/en
Application filed by Fujikura Ltd, Fujikura Cable Works Ltd filed Critical Fujikura Ltd
Publication of GB1479027A publication Critical patent/GB1479027A/en
Expired 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/91—Heating, e.g. for cross linking
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/834—Cooling
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • 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
    • B29K2301/00—Use of unspecified macromolecular compounds as reinforcement
    • B29K2301/10—Thermosetting resins

Abstract

1479027 Curing polyolefin cable sheathing FUJIKURA CABLE WORKS Ltd 29 Aug 1974 [30 Aug 1973 30 Jan 1974 6 June 1974] 37800/74 Heading B5A An extruded cable sheathing comprising a polyolefin and cross linking agent, is extruded around the cable 1 from an extrusion die 5, to pass directly through a curing tube comprising upstream heating and downstream cooling zones 10, 16, through which silicone oil is circulated under a regulated pressure, and the sheathed cable exits from the curing tube through a die 20 provided with a means 19 which super-cools the silicone oil, e.g. to - 20‹ to - 40‹ C., to increase its viscosity and provide a seal between the die 20 and the sheathed cable 22. The silicone oil also acts to fill voids in the sheathing, and is cleared from the surface of the cable by a packing 21. The die 20 is exchangeably mounted. The embodiments relate to a bare cable core 1 to which is applied a semi-conductive inner sheath by a crosshead die 3, followed by insulating and semi-conductive sheathings applied by a crosshead die 5. In the Fig. 1 embodiment, the zones 10, 16, are separated by a seal packing 14 of foamed silicone rubber, and the silicone oil is separately circulated through each zone 10, and 16, by pumps 8, and 17, respectively delivering through a heater and through a cooling device 7, 18. The pressure is automatically regulated in each zone by a pump 23 delivering, via check and relief valves 11, 12 from a silicone oil tank 13 which is connected to a vacuum pump 24 to degass the oil. In the Fig. 2 embodiment (not shown) the packing 14 is replaced by a buffer zone comprising the silicone oil, e.g. along 0À5 to 1 m. length of the tube, cooled by water circulated through a cooling jacket (25) surrounding the tube. In this embodiment, the pressure from the pump (23) is applied only on the downstream side of the buffer zone, to the cooling zone.
GB37800/74A 1973-08-30 1974-08-29 Apparatus for manufacturing cured polyolefin-insulated cables Expired GB1479027A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP48097726A JPS5233312B2 (en) 1973-08-30 1973-08-30
JP49012364A JPS5233314B2 (en) 1974-01-30 1974-01-30
JP6575974U JPS58888Y2 (en) 1974-06-06 1974-06-06 Kakiyo Polyolefin Insert Enable Cable

Publications (1)

Publication Number Publication Date
GB1479027A true GB1479027A (en) 1977-07-06

Family

ID=27279808

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37800/74A Expired GB1479027A (en) 1973-08-30 1974-08-29 Apparatus for manufacturing cured polyolefin-insulated cables

Country Status (7)

Country Link
BR (1) BR7407209D0 (en)
CA (1) CA1049719A (en)
DE (1) DE2441373C3 (en)
FR (1) FR2242227B1 (en)
GB (1) GB1479027A (en)
IT (1) IT1020251B (en)
SE (1) SE402371B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116570A (en) * 1982-03-16 1983-09-28 Pirelli Cavi Spa Vulcanizing plant for an insulated electric cable
CN110111953A (en) * 2019-06-14 2019-08-09 中船重工（葫芦岛）特种电缆有限责任公司 The online solidification equipment of water repellent electric cable
CN113478783A (en) * 2021-07-14 2021-10-08 蓝德能源科技股份有限公司 Rapid cooling device for cable sheath extrusion molding and process thereof
CN117174399A (en) * 2023-11-02 2023-12-05 西安西电光电缆有限责任公司 Extrusion molding die, extrusion molding device and inner skin extrusion equipment for cable

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5493082A (en) * 1977-12-30 1979-07-23 Dainichi Nippon Cables Ltd Continuously extruding and vulcanizing apparatus for hygh polymer continuous lengthes
IT1160389B (en) * 1978-12-22 1987-03-11 Pirelli LINE FOR THE PRODUCTION OF ELECTRIC CONDUCTORS COATED IN EXTRUDED MATERIAL

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116570A (en) * 1982-03-16 1983-09-28 Pirelli Cavi Spa Vulcanizing plant for an insulated electric cable
CN110111953A (en) * 2019-06-14 2019-08-09 中船重工（葫芦岛）特种电缆有限责任公司 The online solidification equipment of water repellent electric cable
CN113478783A (en) * 2021-07-14 2021-10-08 蓝德能源科技股份有限公司 Rapid cooling device for cable sheath extrusion molding and process thereof
CN117174399A (en) * 2023-11-02 2023-12-05 西安西电光电缆有限责任公司 Extrusion molding die, extrusion molding device and inner skin extrusion equipment for cable
CN117174399B (en) * 2023-11-02 2024-02-02 西安西电光电缆有限责任公司 Extrusion molding die, extrusion molding device and inner skin extrusion equipment for cable

Also Published As

Publication number Publication date
BR7407209D0 (en) 1975-06-24
FR2242227B1 (en) 1976-12-31
FR2242227A1 (en) 1975-03-28
DE2441373B2 (en) 1979-02-15
IT1020251B (en) 1977-12-20
DE2441373C3 (en) 1979-10-11
SE7410668L (en) 1975-03-03
CA1049719A (en) 1979-03-06
SE402371B (en) 1978-06-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930829