The feature,law and mechanism of6063aluminium profile anodic coating cracking exposed to the sunshine are studied.The influential factors are analyzed.The preventive measures are presented.

• 研究了阳极氧化6063铝合金型材在曝晒时产生的氧化膜裂纹特征、规律及机理。分析了氧化、封孔工艺因素的影响,提出了预防措施。