JPS57132749A - Manufacture of motor core for refrigerating machine - Google Patents

Manufacture of motor core for refrigerating machine

Info

Publication number
JPS57132749A
JPS57132749A JP1700881A JP1700881A JPS57132749A JP S57132749 A JPS57132749 A JP S57132749A JP 1700881 A JP1700881 A JP 1700881A JP 1700881 A JP1700881 A JP 1700881A JP S57132749 A JPS57132749 A JP S57132749A
Authority
JP
Japan
Prior art keywords
density
varnish
securing strength
solvent type
type insulating
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.)
Pending
Application number
JP1700881A
Other languages
Japanese (ja)
Inventor
Keisuke Yamanaka
Shozo Hanada
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.)
Hitachi Ltd
Original Assignee
Hitachi 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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1700881A priority Critical patent/JPS57132749A/en
Publication of JPS57132749A publication Critical patent/JPS57132749A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Abstract

PURPOSE:To form an iron core having stable securing strength by dipping a temporarily fixed laminated core in coolant resistant solvent type insulating varnish of the prescribed density. CONSTITUTION:After iron core plates punched in the prescribed shape are laminated in the prescribed thickness, they are temporarily fixed by a jig or bolts. Then, they are dipped in coolant resistant solvent type insulating varnish having 25-35% of density, the vaunish is hardened, and temporary fixing is removed. In this case, if the density is less than 25%, varnish immersed between the plates becomes insufficient so that the securing strength is deteriorated. If the density is more than 35%, the varnish is adhered only to the surface of the plates so that the securing strength is deteriorated, and a step of removing excessive varnish is necessary. Accordingly, the core having stable securing strength can be formed by treating it with the coolant resistant solvent type insulating varnish containing 25-35% of density.
JP1700881A 1981-02-09 1981-02-09 Manufacture of motor core for refrigerating machine Pending JPS57132749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1700881A JPS57132749A (en) 1981-02-09 1981-02-09 Manufacture of motor core for refrigerating machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1700881A JPS57132749A (en) 1981-02-09 1981-02-09 Manufacture of motor core for refrigerating machine

Publications (1)

Publication Number Publication Date
JPS57132749A true JPS57132749A (en) 1982-08-17

Family

ID=11931967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1700881A Pending JPS57132749A (en) 1981-02-09 1981-02-09 Manufacture of motor core for refrigerating machine

Country Status (1)

Country Link
JP (1) JPS57132749A (en)

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