Abstract: In order to improve anti-counterfeiting function of vehicles and eradicate stealing vehicles, a research for process variables of vehicle identification label with anti-counterfeiting function is optimized and verified according to Taguchi research method. Firstly, in the many process parameters, the three parameters of coating weight, material weight and the proportion of fluorescent marks are determined as the deteriorating factors affecting the label quality. The peel strength is the observed value and the noise is environment temperature. These elements are used to build an L4 orthogonal matrix. Then the test is designed to get a result, that coating weight is 40～50 g/m2 , material weight is 50 g/m2 and the proportion of fluorescent marks is 5%. The label is free of fracture and deformation, and the quality is the best. Finally, The sub-system test and vehicle assembly test are used to verify that label quality cost, assembly cost and percent defective can be reduced and the system robust function is improved with optimized variables.

Key words: Vehicle identification label; Taguchi research method; Coating weight; Material weight;The proportion of fluorescent marks; Peel strength

摘要： 为了完善车辆的防伪功能，杜绝“套牌车辆”的出现，文章基于田口研究方法对具有 防伪作用的车辆识别代号标签的工艺参数配比进行优化并验证。首先，在诸多工艺参数中确 定涂胶克重、面材克重、荧光暗记比例三个参数为影响标签质量的变差因子，将剥离强度值 作为观测值，环境温度作为噪声，建立 L4 正交矩阵进行试验。然后通过设计试验，得到在涂 胶克重为 40～50 g/m2、面材克重为 50 g/m2、荧光暗记比列为 5%时，标签无断裂和变形，质 量最优的结论。最终通过子系统试验和整车试验验证，确定在采用优化的参数组合后，标签 的质量成本、装配成本和不合格率大幅降低，使系统的稳健性得以提升。

关键词: 车辆识别代号标签；田口方法；涂胶克重；面材克重；荧光暗记；剥离强度