利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN101233248B 电磁钢板部件及其制造方法 失效 - 权利终止

电磁钢板部件及其制造方法
摘要：
本发明提供一种电磁钢板部件及其制造方法，所述电磁钢板部件虽无镀层，但仍具有良好的耐候性和磁特性。本发明涉及一种电磁钢板部件，该电磁钢板部件包括电磁钢板基材、和设置在基材表面上的SiO2层，所述电磁钢板基材包含Si：0.20～1.20重量％、Mn：1.0重量％以下、Al：1.0重量％以下、其余为Fe及不可避免的杂质，其中，设含SiO2层的表层部分中Si含量为X(重量％)、电磁钢板基材中Si含量为Y(重量％)时，X/Y为5.2～11.2。本发明还涉及电磁钢板部件的制造方法，其特征是在包括H2及H2O的气体氛围下，对上述电磁钢板基材进行退火。
摘要（英）：

Disclosed is an electromagnetic steel sheet component which can show satisfactory levels of weather resistance and magnetic property even when a plated layer is not provided therein. Also disclosed is a method for manufacture of the electromagnetic steel sheet component. The component comprises an electromagnetic steel sheet base material having the following composition: Si: 0.20 to 1.20% by weight; Mn: 1.0% by weight or less; Al: 1.0% by weight or less; and the remainder: Fe and unavoidable impurities, and an SiO2 layer provided on the surface of the base material. In the component, the Si content at the surface layer part including the SiO2 layer (X; % by weight) and the Si content in the base material (Y; % by weight) satisfies the following relationship: X/Y = 5.2 to 11.2. The method comprises annealing the electromagnetic steel base material under a gas atmosphere composed of H2 and H2O.

公开/授权文献
0/0