电解质等离子抛光在高碳微合金钢上的应用研究

目的提高金属针布产品(高碳微合金钢)的表面质量,降低针布产品的表面粗糙度值,有效提升产品的使用效果。方法采用电解质等离子抛光工艺在针布产品上展开工艺研究,探索了不同电解质浓度(无机盐质量分数)、不同生产速度和不同电解质等离子抛光单元组数对针布表面粗糙度的影响。利用非接触式粗糙度扫描仪测试粗糙度Ra,以此对针布表面的抛光质量进行表征。结果采用电解质等离子抛光工艺可以实现钢铁材料的表面抛光,抛光后不仅有效地去除了针布表面的氧化皮,并且表面平整且达到镜面效果。最佳工艺参数(电解质无机盐质量分数2.75%,走线速度40 m/min,电解质等离子抛光单元4组)下,表面粗糙度Ra值达到了0.11μm。结论电解质等离子抛光工艺成功地应用于钢铁材料上,且实现了非接触式连续抛光工艺,既不损伤工件,又实现了表面的光亮平整,还具有环境友好、节能和生产效率高等特点。

Application of Plasma Electrolytic Polishing to High Carbon Microalloyed Steel

The work aims to improve surface quality of metallic card clothing (MCC) products (made of high carbon microalloyed steel), decrease Ra value of card-clothing surface, and effectively enhance using effect of the products. Process study was applied to card clothing products by adopting plasma electrolytic polishing process, and effects of different electrolyte concentration, production speed and plasma electrolytic polishing cell groups on surface roughness of card clothing were investigated. Polishing quality of card clothing was characterized with non-contact surface roughometer and determined based upon roughness Ra indicator. Plasma electrolytic polishing process could be applied to realize surface polishing of steel materials, the polishing would not only remove oxide scale on the surface of card clothing effectively, but also make the surface smooth and have mirror effect. Surface roughness Ra reached 0.11 µm based upon the optimum process parameters (electrolyte concentration as 2.75%, routing speed as 40 m/min, and plasma electrolytic polishing unit as 4 groups). The process of EPPo has been successfully applied to steel materials. This non-contact continuous polishing process is made possible, which keeps workpieces intact, makes the surface bright and smooth, and features in environmental protection, energy conservation and high production efficiency.