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磁头是一种电—磁换能器,它是录音机的心脏。近几年来,日本的磁头生产发展很快,年产录音机约五千万台。目前日本的磁头生产已逐步由单声道转向双声道(立体声)磁头。在日本国内主要生产高档的立体声磁头、微型磁头以及金属带配用磁头。而单声道磁头已逐步转向国外(东南亚)子公司生产,并开始向国外输出磁头制造技术。近年来,我国录音磁头生产蓬勃发展,仅从日本引进的磁头装配线年生产能力已超过七百万套磁头。但目前大部分磁头零件均依赖进口,国内尚无一家工厂能大批量提供全套磁头零件。因此,磁头零件国产化的任务迫切需要我们去解决。一九八二年十一月我们去日本考察了横滨磁性材料公司的磁头生产、东北金属工业公司的磁头材料生产以及各有关工厂的磁头零件生产。现将考察的情况作简要介绍,力求对实现我国磁头零件国产化有一定的参考价值。
The head is an electro-magnetic transducer, which is the heart of the recorder. In recent years, Japan’s head production has developed rapidly, with an annual output of about 50 million tape recorders. Currently Japan’s head production has gradually shifted from mono to two-channel (stereo) head. Mainly in Japan to produce high-end stereo heads, miniature heads and metal with head. The mono head has gradually shifted to foreign (Southeast Asia) subsidiary production, and began exporting magnetic head manufacturing technology abroad. In recent years, China’s recording head production boom, only imported from Japan head assembly line annual production capacity has more than seven million sets of heads. However, at present most of the head parts are dependent on imports, there is no one factory in China can provide a full set of magnetic head parts. Therefore, the task of localization of head parts urgently needs us to solve. In November 1982, we went to Japan to examine the head production of Yokohama Magnetic Materials Co., Ltd., the production of magnetic head materials of Tohoku Metal Industries, and the production of magnetic head parts of various related factories. Now the situation to be briefed, and strive to achieve the localization of China’s head parts have some reference value.