Recovering obliterated engraved vehicle identification number on vehicle frame surfaces by etching technique

摘要：

　　Chemical etching,which is the most sensitive method to recover obliterated serial numbers on metal surfaces.This paper studied the method of recovering obliterated engraved vehicle identification number on vehicle frame surfaces by etching technique.Experiment research indicates that for vehicle frame materials containing Al and Si components,the use of concentrated hydrochloric acid:acetic acid:ethanol=2:1:1(volume ratio) reagent shows good effectiveness; For vehicle frame materials Mn and Si composition,the use of concentrated nitric acid:acetic acid:ethanol=1:1:1 (volume ratio) shows good effectiveness.This recovering method has far-reaching application prospects,especially in the robbery cases involving vehicle identification numbers juggled.

关键词： etching technique recover vehicle identification number vehicle frame

作者: Yi Jin

作者单位: China Criminal Police University,Shenyang110035,China

会议类型: 国际会议

会议名称: the 2012 2nd International Conference on Frontiers of Manufacturing Science and Measuring Technology (第二届制造科学与检测技术国际会议(ICFMM 2012))

会议地点: 西安

会议语种:英文

页码: 56-60

在线出版日期: 2012-06-12（万方平台首次上网日期，不代表论文的发表时间）