It is analyzed comparatively that the sort,hardness,microstructure,particle shape,size distribution,macrostructure,density of an abrasive for shot blasting steel structures during their coating and anticorrosion,i. e. the pretreatment of steel.

• 对钢结构涂装防腐过程中 ,钢材的抛丸 (喷丸 )清理 (除锈 ) ,即钢材预处理过程所用金属磨料的种类、硬度、显微组织、磨料材料的颗粒形状、粒度分级、宏观、微观组织及密度作了对比分析 ,指出了判断金属磨料质量的简易方法及正确选用磨料的原则。