BR7902328A - Processo para reducao de microvacuos em isolante extrudado de cabos eletricos - Google Patents

Processo para reducao de microvacuos em isolante extrudado de cabos eletricos

Info

Publication number
BR7902328A
BR7902328A BR7902328A BR7902328A BR7902328A BR 7902328 A BR7902328 A BR 7902328A BR 7902328 A BR7902328 A BR 7902328A BR 7902328 A BR7902328 A BR 7902328A BR 7902328 A BR7902328 A BR 7902328A
Authority
BR
Brazil
Prior art keywords
microvacues
reducing
electric cables
extruded insulator
cables extruded
Prior art date
Application number
BR7902328A
Other languages
English (en)
Inventor
G Lanfranconi
B Vecellio
Original Assignee
Pirelli
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 Pirelli filed Critical Pirelli
Publication of BR7902328A publication Critical patent/BR7902328A/pt

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
    • H01B13/145—Pretreatment or after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/08—Heat treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Organic Insulating Materials (AREA)
BR7902328A 1978-04-19 1979-04-17 Processo para reducao de microvacuos em isolante extrudado de cabos eletricos BR7902328A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22447/78A IT1094442B (it) 1978-04-19 1978-04-19 Procedimento per la riduzione dei microvucti nell'isolante estruso di cavi elettrici

Publications (1)

Publication Number Publication Date
BR7902328A true BR7902328A (pt) 1979-10-23

Family

ID=11196403

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7902328A BR7902328A (pt) 1978-04-19 1979-04-17 Processo para reducao de microvacuos em isolante extrudado de cabos eletricos

Country Status (7)

Country Link
US (1) US4259281A (pt)
AR (1) AR217511A1 (pt)
BR (1) BR7902328A (pt)
CA (1) CA1136370A (pt)
ES (1) ES480328A1 (pt)
GB (1) GB2021595B (pt)
IT (1) IT1094442B (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483808A (en) * 1982-02-18 1984-11-20 At&T Technologies, Inc. Methods of making a compositely insulated conductor having a layer of irradiation cross-linked polymeric material
US4454709A (en) * 1982-03-12 1984-06-19 General Electric Company Method of forming concentric cable layer and article formed
FR2564034B1 (fr) * 1984-05-14 1987-02-27 Gerland Procede de recuisson des produits en elastomeres et plastomeres par application simultanee de la chaleur et du vide en l'absence d'oxygene et elastomeres et plastomeres obtenus
DE3629348C2 (de) * 1985-11-09 1994-10-20 Kabelmetal Electro Gmbh Kunststoffisoliertes elektrisches Mittel- oder Hochspannungskabel
US5795531A (en) * 1991-04-09 1998-08-18 Zumbach Electronic Ag Method and apparatus for the cross-sectional measurement of electric insulated conductors
CH685336A5 (de) * 1991-04-09 1995-06-15 Zumbach Electronic Ag Verfahren und Einrichtung zur Querschnitts-Vermessung elektrischer Adern.
FI89987C (fi) * 1991-10-30 1993-12-10 Maillefer Nokia Oy Foerfarande foer vaermebehandling av en kabel
US5426264A (en) * 1994-01-18 1995-06-20 Baker Hughes Incorporated Cross-linked polyethylene cable insulation
US5681514A (en) * 1995-06-07 1997-10-28 Sulzer Intermedics Inc. Method for making an implantable conductive lead for use with a cardiac stimulator
DE602008002996D1 (de) * 2008-02-20 2010-11-25 Abb Research Ltd Verfahren zur Bereitstellung eines elektrischen Hochspannungsgleichstromkabels oder Hochspannungsgleichströmende oder -verbindungsstelle
US20110017494A1 (en) * 2009-07-24 2011-01-27 General Electric Company Insulating compositions and devices incorporating the same
FR2963352B1 (fr) * 2010-07-27 2014-03-14 Arkema France Procede pour preparer un cable et utilisation de peroxydes organiques pour reduire l'etape de degazage dans un procede pour preparer un cable
WO2021011335A1 (en) * 2019-07-12 2021-01-21 Essentium, Inc. Apparatus and process for sealing of gaps in parts manufactured via 3d printing techniques

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE472271A (pt) * 1944-12-22
US3029473A (en) * 1959-05-25 1962-04-17 Riverside Plastics Corp Vacuum post-curing of infusible plastic material
US3513228A (en) * 1966-06-11 1970-05-19 Sumitomo Electric Industries Method of continuously curing rubber or plastic coated conductor
US3452126A (en) * 1966-12-09 1969-06-24 Us Air Force Method of post-curing a benzoyl peroxide cured fluoroelastomer composition
CA1022633A (en) * 1974-05-04 1977-12-13 Shuji Yamamoto Dual coated power cable with calcium oxide filler
US3957719A (en) * 1974-08-08 1976-05-18 General Electric Company Method of heat treating an ethylene containing polymer electrical insulating composition and product formed thereby

Also Published As

Publication number Publication date
CA1136370A (en) 1982-11-30
IT7822447A0 (it) 1978-04-19
ES480328A1 (es) 1979-12-16
US4259281A (en) 1981-03-31
GB2021595A (en) 1979-12-05
IT1094442B (it) 1985-08-02
AR217511A1 (es) 1980-03-31
GB2021595B (en) 1982-09-29

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