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陈骧博士认为,由于资本主义经济危机的影响,美国钢铁和有色金属不断减产,唯有铍铜合金不但没有减产而且略有增长,这是非常不容易的。他说:卡博特公司过去和现在一直在研究铍铜的代用合金,但至今仍未找到综合性能接近或达到铍铜合金的材料。美国目前年产铍铜合金7000吨。七十年代以来,美国镀铜合金一直以每年增长10％的速度发展。估计到1990年美国镀铜合会产量可能达到1980年的2.85倍,即超过20000
Dr. Chen Yu believes that due to the impact of the capitalist economic crisis, the U.S. steel and nonferrous metals continue to cut their output. It is not easy for beryllium-copper alloys to not only reduce their output but also increase slightly. He said: Cabot Corporation has been and is currently studying alternative alloys of beryllium copper, but so far we have not yet found a comprehensive performance close to or reach the beryllium copper alloy materials. The United States currently produces 7,000 tons of beryllium copper alloy. Since the seventies, the United States copper alloy has been growing at an annual rate of 10%. It is estimated that the output of the copper plating association in the United States in 1990 may reach 2.85 times of 1980, or over 20,000