机械镀锌过程中锌粉的受力及运动分析  

Force and motion analysis of zinc powder in mechanical galvanizing process

作　　者：宋丹[1] 何明奕[1] 王胜民[1] 赵晓军[1] 

机构地区：[1]昆明理工大学材料保护研究所,云南昆明650093

出　　处：《钢铁研究》2010年第1期34-37,共4页Research on Iron and Steel

基　　金：国家自然科学基金(50561003);云南省教育厅科研基金(07Y41414)

摘　　要：采用粒径0.1-8.0μm范围的金属锌粉,在室温下以机械镀方式形成锌镀层。对镀桶内物质运动状态、机械碰撞力及锌粉颗粒之间的相互作用力进行了分析计算。结果表明：表面张力、液桥作用力和气泡团聚力是引起锌粉颗粒聚团的主要原因;分子间作用力、双电层作用力和溶剂化膜作用力对锌粉颗粒的聚团作用影响甚微。锌粉的紧实变形和镶嵌成层主要依靠机械碰撞力。Zinc coating was deposited with zinc powder in the range of 0.1-8.0μm at room temperature by mechanical galvanizing.The material movement and mechanical collision force in the barrel,and the force between powder particles are calculated and analyzed in detail.It is found that surface tension,liquid bridge force and bubble reunion force are the main reasons of agglomeration of zinc particles;molecular interactions,double-layer force and solvent membrane force have little effects on the reunion of zinc particles.Mechanical collision force plays an important role in the compaction,deformation and stratification of zinc powder.

关 键 词：机械镀锌 锌粉 受力及运动 

分 类 号：TG174.4[金属学及工艺—金属表面处理]