一、前言铍青铜是铜合金中机械性质、物理化学性质和抗蚀性良好结合的不可多得的合金。国外该合金目前每年仍以5～10%的速度增长。我国由于生产成本较高和存在若干技术问题,使铍青铜的推广应用受到一定的影响,产量增长缓慢。因此必须采取措施,降 I. Introduction Beryllium bronze alloy is a rare combination of mechanical properties, physical and chemical properties and corrosion resistance of the alloy. The current foreign alloy is still 5 to 10% annual growth rate. Due to the high production costs and the existence of a number of technical problems in our country, the popularization and application of beryllium bronze have been affected to a certain extent, and the output growth has been slow. Therefore, we must take measures to reduce