Preparation of ductile high-permeability grain-oriented silicon steel with high permeability

摘要

For making a ductile boron-containing grain-oriented silicon steel, there is practiced, at a late stage in the making of the product either during the final texture anneal or a subsequent anneal, a high- temperature anneal in a reducing atmosphere with the use of a separating- agent coating, particularly magnesium oxide, which contains an effective amount of a compound of molybdenum and/or tungsten.