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我国已从日本引进或合资兴办了11条音频磁头生产组装线,1988年生产各类磁头7587万只,其中音频磁头6792万只,消耗各类高镍软磁坡莫合金约200多吨(做磁头外壳、隔离片和芯片),镍铬系不锈钢约100多吨(做导带板、支架等),如果全部用进口料需耗外汇近千万美元。冶金系统(主要单位有首钢冶研所,上海钢研所,陕西钢研所和大连钢厂等)经几年的努力,1988年已使上述音频磁头用原材料国产
China has introduced or jointly owned 11 audio head assembly lines from Japan. In 1988, it produced 75.87 million heads of various kinds, of which 67.92 million were audio heads and consumed about 200 tons of various high-nickel soft permalloy Head shell, separators and chips), about 100 tons of nickel-chromium stainless steel (do guide plate, bracket, etc.), if all the imported materials need foreign exchange nearly 10 million US dollars. Metallurgical system (the main units are Shougang Institute of Metallurgical, Shanghai Steel Research Institute, Shaanxi Steel Institute and Dalian Steel, etc.) After several years of efforts, in 1988 has made the audio head made of raw materials