Electrical steel sheet, laminated core and rotating electric machine
AssigneeNippon Steel Corporation
InventorsShinsuke TAKATANI, Kazutoshi TAKEDA, Ichiro TANAKA
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Abstract
This electrical steel sheet is an electrical steel sheet in which at least part of either or both surfaces of a base steel sheet is coated with an insulation coating having an adhesive ability, wherein a logarithmic decrement of the insulation coating in a temperature range of 25 to 100° C. is 0.3 or less.
Claims16
1-8. (canceled)
An electrical steel sheet in which at least a part of either or both surfaces of a base steel sheet is coated with an insulation coating having an adhesive ability,
- wherein a logarithmic decrement of the insulation coating in a temperature range of 25 to 100° C. is 0.3 or less,
- wherein a difference between a peak temperature of the logarithmic decrement of the insulation coating and a curing start temperature is less than 80° C., and a difference between a logarithmic decrement of the peak temperature and a logarithmic decrement of the curing start temperature is 0.1 or more.
An electrical steel sheet in which at least a part of either or both surfaces of a base steel sheet is coated with an insulation coating having an adhesive ability,
- wherein a difference between a peak temperature of a logarithmic decrement of the insulation coating and a curing start temperature is less than 80° C., and a difference between a logarithmic decrement of the peak temperature and a logarithmic decrement of the curing start temperature is 0.1 or more.
An electrical steel sheet in which at least a part of either or both surfaces of a base steel sheet is coated with an insulation coating having an adhesive ability,
- wherein a logarithmic decrement of the insulation coating in a temperature range of 200 to 250° C. is 0.9 or less.
Dependencies are inferred from the claim text.