Magnetic and mechanical characteristics of adhesive coating non-oriented electrical steel sheet cores were measured in the conditions of motor, comparing with those of welded cores. The deteriorations of iron losses and exciting currents by adhesion are less than those by welding. The noise levels and vibrating levels of adhesive coating cores are about 10dB lower than welded cores. The results of modal analysis of adhesive coating core and welded one support the results of noise and vibration tests. The heat conductivities of adhesive coating cores in lamination direction are higher.
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