| 摘要 |
PURPOSE:To sufficiently improve the compressive stress characteristics of the magnetostriction of a grain-oriented silicon steel sheet as well as to effectively reduce the iron loss by firmly adhering a very thin layer of TiN, TiC or Ti(CN) on the mirror-finished surface of the steel sheet to coat the surface. CONSTITUTION:The surface of a grain-oriented silicon steel sheet subjected to finished annealing is mirror-finished, and a very thin layer of one or more among TiN, TiC and Ti(CN) is firmly adhered to the mirror-finished surface having <=0.4mum average roughness on the center line to coat the surface. The very thin layer can be formed by a CVD reaction on the mirror-finished surface of the steel sheet with a CVD apparatus. |
