一、ZQAl9—4的性能 铝青铜机械性能较高,耐磨性较好;其组织微密,不易渗漏,不用铅锡,比重较轻,成本低;铸造流动性较好,采用金属模浇注的时候可以连续使用,不必激冷;铝青铜中含有铝易氧化。因此在熔化、浇注过程中较困难。ZQAl9—4铜由于有以上特点,目前我厂广泛用于制造蜗轮、齿轮、衬套、离合器、花键套、轴承、螺母等。 First, the performance of ZQAl9-4 aluminum bronze higher mechanical properties, good wear resistance; its micro-organization, not easy to leak, without lead tin, light weight, low cost; good casting fluidity, the use of metal casting Can be used continuously without chilling; aluminum bronze contains aluminum and is easily oxidized. Therefore, melting, pouring process more difficult. ZQAl9-4 copper because of the above characteristics, I plant widely used in the manufacture of worm gear, bushings, clutches, spline sets, bearings, nuts and so on.