Aluminum products with shing uniform surface was prepared by electrochemical graining process, including alkaline cleaning, 1% NaOH etching, electrochemical roughing in HCl, NaOH treating and anodizing in 5% H2SO4 etc.

• 摘要研究了铝材无挂灰电化学砂化处理工艺。以盐酸作为电解液的主成分，控制合适的电流密度和电解时间等工艺参数，通过6步处理，得到砂化均匀、粗糙度适中及光亮的砂面。