JPS57122506A - Simplified molding method for through current transformer - Google Patents

Simplified molding method for through current transformer

Info

Publication number
JPS57122506A
JPS57122506A JP55185994A JP18599480A JPS57122506A JP S57122506 A JPS57122506 A JP S57122506A JP 55185994 A JP55185994 A JP 55185994A JP 18599480 A JP18599480 A JP 18599480A JP S57122506 A JPS57122506 A JP S57122506A
Authority
JP
Japan
Prior art keywords
molds
molding material
current transformer
toluenedisocyanate
dimer
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.)
Granted
Application number
JP55185994A
Other languages
Japanese (ja)
Other versions
JPS6124764B2 (en
Inventor
Toshio Taniguchi
Seiji Fukuda
Kiyoshi Hani
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55185994A priority Critical patent/JPS57122506A/en
Publication of JPS57122506A publication Critical patent/JPS57122506A/en
Publication of JPS6124764B2 publication Critical patent/JPS6124764B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Organic Insulating Materials (AREA)

Abstract

PURPOSE:To form high quality molds easily by heat-forming of preforming material which is obtained from a polymer of polyhydroxybutadiene with hydrogen additive and a mixture of an isocyanate compound and dimer-2,4-toluenedisocyanate. CONSTITUTION:Thermosetting molding material 30 is adequately vacuum-defoamed in a vacuum stirrer 21 at a temperature of its melting point or above, and then poured into a metallic pattern for preforming 22. An upper half and a lower half molds can be obtained after cooled down to room temperature and removed from the metallic pattern. In this process, the polymer of polyhydoxybutadiene with hydrogen additive is used as a main agent for the molding material 30. As a hardening agent, the mixture of the isocyanate compound represented by the formulaIas general formula and dimer-2,4-toluenedisocyanate represented by the formula 2 as general formula. After two of fixed shape materials 30a, 30a are inserted as elastic molding material in metallic patterns 23a, 23b respectively and a current transformer proper 1 is put inside one of the molds 30a, the molds 30a, 30a are clamped together to melt them together for unification.
JP55185994A 1980-12-26 1980-12-26 Simplified molding method for through current transformer Granted JPS57122506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55185994A JPS57122506A (en) 1980-12-26 1980-12-26 Simplified molding method for through current transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55185994A JPS57122506A (en) 1980-12-26 1980-12-26 Simplified molding method for through current transformer

Publications (2)

Publication Number Publication Date
JPS57122506A true JPS57122506A (en) 1982-07-30
JPS6124764B2 JPS6124764B2 (en) 1986-06-12

Family

ID=16180499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55185994A Granted JPS57122506A (en) 1980-12-26 1980-12-26 Simplified molding method for through current transformer

Country Status (1)

Country Link
JP (1) JPS57122506A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002524840A (en) * 1998-08-10 2002-08-06 バクームシュメルツェ ゲゼルシャフト ミット ベシュレンクテル ハフツング Manufacturing method of inductive components
US8298352B2 (en) 2007-07-24 2012-10-30 Vacuumschmelze Gmbh & Co. Kg Method for the production of magnet cores, magnet core and inductive component with a magnet core
US8327524B2 (en) 2000-05-19 2012-12-11 Vacuumscmelze Gmbh & Co. Kg Inductive component and method for the production thereof
US8372218B2 (en) 2006-06-19 2013-02-12 Vacuumschmelze Gmbh & Co. Kg Magnet core and method for its production

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5159399A (en) * 1974-11-21 1976-05-24 Mitsubishi Chem Ind
JPS55151311A (en) * 1979-05-15 1980-11-25 Matsushita Electric Ind Co Ltd Integral dry type flyback transformer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5159399A (en) * 1974-11-21 1976-05-24 Mitsubishi Chem Ind
JPS55151311A (en) * 1979-05-15 1980-11-25 Matsushita Electric Ind Co Ltd Integral dry type flyback transformer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002524840A (en) * 1998-08-10 2002-08-06 バクームシュメルツェ ゲゼルシャフト ミット ベシュレンクテル ハフツング Manufacturing method of inductive components
USRE41269E1 (en) 1998-08-10 2010-04-27 Vacumschmelze Gmbh & Co. Kg Method for producing inductive components
US8327524B2 (en) 2000-05-19 2012-12-11 Vacuumscmelze Gmbh & Co. Kg Inductive component and method for the production thereof
US8372218B2 (en) 2006-06-19 2013-02-12 Vacuumschmelze Gmbh & Co. Kg Magnet core and method for its production
US8298352B2 (en) 2007-07-24 2012-10-30 Vacuumschmelze Gmbh & Co. Kg Method for the production of magnet cores, magnet core and inductive component with a magnet core

Also Published As

Publication number Publication date
JPS6124764B2 (en) 1986-06-12

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