车灯反光镜真空镀铝层脱落形成机理及对策

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【摘  要】文章先从真空镀铝的基本原理分析镀铝层脱落的形成机理，然后从结构设计、底涂、硅油、蒸发舟的参数、注塑件表面品质、外部环境等角度探讨真空镀铝层脱落的一系列影响因素和相关对策，并从在线检测和试验的角度，提出真空镀铝品质的评价方法，最后基于某一项目实践验证对策和评价方法的有效性。

【关键词】真空镀铝；镀铝层脱落；真空舟；反射率

中图分类号：U463.652    文献标识码：A    文章编号：1003-8639（ 2024 ）02-0082-04

Mechanism on Metallization Layers Peeling-off of Lamp Reflectors and Its Countermeasures

LI Xiangbing，YANG Weimin

（Dongfeng Peugeot Citroen Automobile Co.，Ltd.，Wuhan 430058，China）

【Abstract】By referring to the principle of vacuum metallization process，this arcitle investigates the mechanism of metallization layer peeling-off phenomena. From the perspectives of structure design，bottom painting，silicon oil，vacuum chamber parameters setting，aspect quality of injection parts and exterior environment，it studies the root causes of vacuum aluminum layer peeling-off and its countermeasures. It also proposes the assessment method of aspect quality on vacuum layers based on the on-line checking and testing. By practicing with one project，it proves the reasonability of these countermeasures and assessment methods.

【Key words】vacuum metallization；metallization layer peeling-off；vacuum chamber；reflecting ratio

车灯作为汽车照明与信号的重要工具，在汽车安全驾驶中起着重要作用。（剩余5336字）