铁芯浸渍后可以降低部分噪声,但由于铁芯内部片间仍是松散的,故还会因片间振动而产生噪声。设想在钢带表面涂以粘结涂层,使铁芯经热处理后成为一体,以抑制噪声。试验采用了上海钢铁研究所和北京钢铁研究院提供的粘结涂层钢带。上海钢铁研究所提供的料,其涂层的结合力抗剪强度在30公斤/厘米~2以下,制成 Iron core dipping can reduce some of the noise, but because the core is still loose inside the film, it will also produce noise due to vibration between the pieces. Imagine the surface of the strip coated with a bond coat, so that the core after heat treatment become one to suppress noise. Test using the Shanghai Institute of steel and Beijing Institute of steel bonded coating strip. Shanghai Institute of Iron and Steel provided by the material, the coating combination of shear strength of 30 kg / cm ~ 2 or less, made of