GB/T 8753.4-2005
ActiveAnodizing of aluminium and aluminium alloys-assessment of quality of sealed anodic oxide coatings Part 4:Dye spot test with prior acid treatment
铝及铝合金阳极氧化 氧化膜封孔质量的评定方法 第4部分:酸处理后的染色斑点法
Application Summary AI generated
This standard specifies a dye spot test method with prior acid treatment to assess the sealing quality of anodic oxide coatings on aluminium and aluminium alloys. It is applied in manufacturing quality control, particularly for components requiring corrosion resistance, such as architectural profiles, automotive parts, and aerospace components. The test detects inadequate sealing by exposing the coating to acid, then applying dye to reveal absorption defects.
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