依据建筑机械大型结构件涂装后存放在露天时易生锈的情形，系统分析了锈蚀的原因，针对原因采取相应的措施，从而提高零部件的防锈蚀能力，满足生产所需。“,”The rust causes and corresponding measures were systematically analyzed according to the construction machinery large-scale structures could rust easily when they were coated premier and then were stored in the open-air. Components measurement was take according to the cause,so improve the anticorrosion ability of parts and meet the production demands.