【摘要】 用３０８ｎｍ准分子激光对聚氯乙烯塑料制品进行了打标实验，结果获得了清晰的标记图案．并且该打标方式效率高，速度快，图案清晰，对周围的热影响很小．通过实验优选了打标的能量密度值．对打标过程进行了分析，初步分析了该打标过程中激光作用的机理．更多还原

【Abstract】 The laser marking experiments to polyvinyl chloride samples are made with 308nm excimer laser,it is found that a fine and visible pattern can be acquired in the sample surface which is irradiated by a proper fluence laser pulse.Besides,this marking method is efficient,high speed,and very clear,the heat effect on all around is very miniature.The condition of marking is optimized in the experiments.In this paper the marking procedures are analyzed and the marking mechanism is studied preliminarily.更多还原