为了研究吸收剂对激光透射焊接热塑性塑料的影响,设计了热塑性材料的激光透射焊接实验方案,对透明聚苯乙烯、聚氯乙烯两种塑料成功地进行了激光透射焊接,运用正交实验方法对焊接工艺进行了分析,并对焊接样品进行了剪切强度测试;讨论了黑漆和clearweld两种不同吸收剂对焊接强度和外观质量的影响,对实验中出现的黑色焦黄色焊缝、焊缝凸起和焊接断裂等现象进行了分析。结果表明,clearweld吸收剂优于黑漆吸收剂。

In order to study the influence of additive on laser transmission welding thermoplastic material,the experimental scheme of laser transmission welding thermoplastic material was designed.Laser transmission welding transparent polystyrene and polyvinyl chloride was successful with this method.The welding process was analysized with orthogonal method. The shear strength was tested on the workpiece.The influence of two kinds of additive:black lacquer and clearweld on welding strength and appearance quality was discussed.Finally,the phenomenon of black and brown welding line,welding line heave,jointing rupture was analyzed.Experiment results showed that clearweld additive was better than black lacquer additive.