目前,国内对磨损后机动车车架号码的复现有两种方法: 一种是通过化学试剂(酸与金属化学反应)的擦洗进行复现, 另一种是应用车架号磁性显现仪器进行复现。通过试验对两种方法的复现效果进行比较, 结果显示, 磁性复现方法的优点在于简便, 但其复现效果与化学试剂擦洗方法比较并没有优势, 且仪器价格较贵, 在检验鉴定实践中的应用存在一定的局限性。

Nowadays there are two main methods used for the recovery of altered VIN in China. One is scrubbing with chemicals (chemical reaction between metal and acid), the other is magnetic recover by the related instrument. In this paper, the results of these two methods are compared to show that the advantage of the latter one is simple and convenient, but the effect of its appearance is not superior to the chemical reagent cleaning method. In addition, the price of the instrument is more expensive and its application in the inspection and appraisal practice has certain limitations.