METHOD FOR FORMING INSULATING FILM ON RIBBON OF AMORPHOUS MAGNETIC ALLOY

摘要

A method for forming insulation films of an amorphous magnetic alloy thin plate is provided, which includes the steps of preparing a first solution by dissolving metal magnesium or organic magnesium compound in a first alcohol solvent e-antibiotic of narcotics, preparing a second solution with a second alcohol solvent containing minute quantity of water, preparing coating solution for forming films by mixing the first and the second solutions, coating a surface of the amorphous magnetic alloy thin plate with the coating solution, drying the coated amorphous magnetic alloy thin plate, and heating the dried amorphous magnetic alloy thin plate, wherein the amorphous magnetic alloy thin plates may be insulated interfacially by forming oxide insulation films on the surfaces thereof by the sol-gel method.