![具有改善电绝缘的层的电工钢片以及其制造方法](/CN/2014/8/5/images/201480025470.jpg)
基本信息:
- 专利标题: 具有改善电绝缘的层的电工钢片以及其制造方法
- 专利标题(英):Electrical steel sheet with a layer improving the electrical insulation and method for the production thereof
- 申请号:CN201480025470.1 申请日:2014-04-17
- 公开(公告)号:CN105190794A 公开(公告)日:2015-12-23
- 发明人: J.D.詹森 , A.莫尔 , R.赖歇 , M.施奈德 , O.施蒂尔
- 申请人: 西门子公司
- 申请人地址: 德国慕尼黑
- 专利权人: 西门子公司
- 当前专利权人: 茵梦达有限责任公司
- 当前专利权人地址: 德国纽伦堡
- 代理机构: 北京市柳沈律师事务所
- 代理人: 侯宇; 冯欢
- 优先权: 102013208617.2 2013.05.10 DE
- 国际申请: PCT/EP2014/057879 2014.04.17
- 国际公布: WO2014/180646 DE 2014.11.13
- 进入国家日期: 2015-11-05
- 主分类号: H01F1/147
- IPC分类号: H01F1/147 ; C23C10/00 ; C23C10/60 ; C21D8/12 ; C23C8/02 ; C23C8/10 ; C23C10/28
The invention relates to an electrical steel sheet (11) with a layer (14) improving the electrical insulation. According to the invention, this layer is formed from tantalum oxide or titanium oxide, wherein a diffusion zone (15) that is enriched with tantalum or titanium adjoins toward the interior of the electrical steel sheet (11). This has the advantage that the layer adheres better on the electrical steel sheet (11). Furthermore, the tantalum or titanium of the diffusion zone (15) can also be used as a depot, which has the effect of spontaneously passivating impairments of the layer (14). Therefore, corrosion protection is ensured even when there are impairments of said layer (14). The invention also relates to a method for producing an electrical steel sheet in the way described.
公开/授权文献:
- CN105190794B 具有改善电绝缘的层的电工钢片以及其制造方法 公开/授权日:2018-12-07
IPC结构图谱:
H | 电学 |
--H01 | 基本电气元件 |
----H01F | 磁体;电感;变压器;磁性材料的选择 |
------H01F1/00 | 按所用磁性材料区分的磁体或磁性物体;磁性材料的选择 |
--------H01F1/01 | .无机材料的 |
----------H01F1/03 | ..按其矫顽力区分的 |
------------H01F1/032 | ...硬磁材料的 |
--------------H01F1/14 | ....金属或合金 |
----------------H01F1/147 | .....按成分区分的合金 |