一、前言铜铅轴瓦工作面尺寸电镀Pb-Sn二元合金属于微量合金电镀。1920年美国人Groff.W提出电镀Pb-Sn合金专利,五十年代始用于轴瓦,经不断改进和完善,已普遍应用于生产。随着我国汽车工业不断向高质量、高速度方向发展,对汽车轴瓦性能的要求也越来越高,因此原有的白合金轴瓦,正逐步被铅基 I. Introduction Copper-lead bearing face size Plating Pb-Sn binary alloy is a micro alloy plating. 1920 Groff.W American made electroplating Pb-Sn alloy patent, the beginning of the 1950s for bearing, after continuous improvement and improvement, has been widely used in production. With the continuous development of China’s automobile industry to high-quality, high-speed direction, the performance requirements of automotive bearings are also getting higher and higher, so the original white alloy bearing, is gradually being lead-based