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磁记录技术在广播、电视、电影、数字化技术、生产建设、国防、科学研究和日常生活中都得到广泛应用。磁记录系统主要由磁带、磁头、磁带传输机构、记录放大器、还原放大器等组成。磁头作为电磁换能器是支配磁记录装置性能的关键部件。由于磁头与磁带间存在摩擦运动,所以要求磁头铁芯和屏蔽罩应具有良好的耐磨性。特别是近年来为了提高磁记录密度采用氧化铬磁带,以及高速磁带机的生产
Magnetic recording technology is widely used in radio, television, film, digital technology, production and construction, national defense, scientific research and daily life. Magnetic recording system mainly by the tape, head, tape transmission, recording amplifier, amplifier and other components. Magnetic heads as electromagnetic transducers are the key components that govern the performance of magnetic recording devices. Due to the frictional movement between the head and the tape, the head iron core and the shield should be required to have good wear resistance. In recent years, in particular, the use of a chromium oxide tape to increase the magnetic recording density and the production of high-speed tape drives