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Electrical steel sheet for stacking, stacked electrical steel sheet, method of manufacturing stacked electrical steel sheet, and iron core for automotive motor
US2017117758A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017117758-A1 |
| Application number | US-201515318359-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 24, 2015 |
| Priority date | Jul 29, 2014 |
| Publication date | Apr 27, 2017 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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A stacked electrical steel sheet used for a stacked iron core of an automotive motor and the like required to have high-temperature bond property and high-temperature oil resistance is provided. An electrical steel sheet for stacking includes: an electrical steel sheet; and a bond-type insulating coating formed on at least one surface of the electrical steel sheet and having Martens hardness HM of 50 or more and less than 500.
First claim
Opening claim text (preview).
1 . An electrical steel sheet for stacking, comprising: an electrical steel sheet; and a bond-type insulating coating formed on at least one surface of the electrical steel sheet and having Martens hardness HM of 50 or more and less than 500. 2 . The electrical steel sheet for stacking according to claim 1 , wherein the bond-type insulating coating has a logarithmic decrement peak temperature of 50° C. or more and 200° C. or less measured by a rigid body pendulum test. 3 . The electrical steel sheet for stacking according to claim 1 , wherein the bond-type insulating coating contains at least one phenolic resin selected from novolac type, resol type, modified type, and a mixture thereof. 4 . A stacked electrical steel sheet, comprising a plurality of the electrical steel sheet for stacking according to claim 1 stacked through the bond-type insulating coating. 5 . A method of manufacturing a stacked electrical steel sheet, comprising: stacking a plurality of the electrical steel sheet for stacking according to claim 1 ; and simultaneously heating and pressing the stacked plurality of the electrical steel sheet for stacking. 6 . An iron core for an automotive motor, comprising a plurality of the stacked electrical steel sheet according to claim 4 stacked through the bond-type insulating coating.
Assignees
Inventors
Classifications
of stator or rotor bodies · CPC title
Operations & Transport · mapped topic
comprising metal as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a bituminous or tarry layer B32B11/08; next to a water-setting substance layer B32B13/06; next to a glass layer B32B17/061; next to a cellulosic plastic layer B32B23/042)} · CPC title
with insulating coating · CPC title
Coating not provided for in groups C23C2/00 - C23C24/00 · CPC title
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- What does patent US2017117758A1 cover?
- A stacked electrical steel sheet used for a stacked iron core of an automotive motor and the like required to have high-temperature bond property and high-temperature oil resistance is provided. An electrical steel sheet for stacking includes: an electrical steel sheet; and a bond-type insulating coating formed on at least one surface of the electrical steel sheet and having Martens hardness HM…
- Who is the assignee on this patent?
- Jfe Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification H02K1/02. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Apr 27 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).