| abstract |
(57) [Summary] [Purpose] In producing grain-oriented silicon steel sheets containing AlN and Sb as inhibitors, obtain good forsterite coating properties and magnetic properties. [Structure] As the main component of the annealing separator that is applied prior to finish annealing, MgO is the citric acid activity and the final reaction rate. 100 to 400 seconds at 40% condition, 10 at 80% final reaction rate 00 to 4000 seconds, the water content of hydration is 2.5% or less under the conditions of 20 ° C and 60 minutes, and the average particle size is 2.5 μm. Use m or less and 325 mesh with 5% or less of non-passage. |