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铝合金变焦距组件硬质氧化质量问题分析

Analysis of Quality of Hard Anodizing Coatings on Cam-Varifocal Mechanism
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摘要 7A04铝合金变焦距组件在硬质氧化处理后出现氧化膜局部粗糙、零件腐蚀的现象。为此,对工艺进行了分析,发现影响氧化膜质量的原因为搅拌强度不足,导致零件局部过热。通过提高搅拌强度,变焦距组件氧化膜质量合格。 Cam-varifocal mechanism made of 7A04 aluminum al-loy is liable to local coarsening and corrosion of oxide coatings af-ter hard anodizing. Thus the anodizing process was analyzed, andthe causes leading to local coarsening and corrosion of the oxidecoatings on the cam-varifocal mechanism were explored. It wasfound that the poor quality of the anodizing coatings on the Al al-loy was attributed to insufficient agitation, which led to localoverheating. It was feasible to prepare cam-varifocal mechanismwith qualified anodizing coatings by properly increasing the inten-sity of agitation.
作者 姜伟 姚惠
出处 《材料保护》 CAS CSCD 北大核心 2010年第3期67-68,共2页 Materials Protection
关键词 变焦距组件 硬质氧化 7A04铝合金 质量 cam-varifocal mechanism hard anodizing 7A04 alu-minum alloy quality
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