CEMENTETION CONTROL METHOD FOR SILICON PLATE

摘要

The method for manufacturing directional electrical steel sheet is characterized by maintaining the decarburized annealing sheet, which comprises not more than 400 ppm. MgO and conventionally is covered with mgO as annealing separation agent, prior to high temperature annealing under the dried atmosphere of 100-180 deg.C. This process is used for controlling the generation of a cementation structure in the high temperature annealing.