异种透明塑料焊接机理及焊缝特征研究
Research on the Welding Mechanism and Weld Characteristics of Different Transparent Plastics
张杰 1李永岗 1王桂刚1
作者信息
- 1. 青岛爱尔家佳新材料股份有限公司, 山东 青岛 266000
- 折叠
摘要
以低熔点镁锌合金(MZA)粉末为激光吸收剂,实现聚芳砜(PASF)和聚碳酸酯(PC)的焊接.使用Trace Pro软件追踪了激光与MZA粉末相互作用过程,扫描电镜(SEM)与焊缝元素分析(XPS)探究异种透明塑料焊接机理,最后探究了粉末粒径、粉末层宽度和厚度对焊接强度及焊缝特征的影响.结果表明:激光与MZA粉末相互作用过程为复合反射行为,并沿着金属颗粒的间隙向前传播;焊接接头是由"钉扎"结构和化学键合共同组成的;在MZA粉末粒径为48 μm、粉末层宽度为3 mm、粉末层厚度为0.08 mm的条件下,PASF/PC焊接件具有最优的焊接效果.
Abstract
Low melting point magnesium zinc alloy(MZA)powder near the plastic forming temperature is used as a laser absorber to achieve the welding of heterogeneous transparent plastics such as polyarylsulfone(PASF)and polycarbonate(PC).The interaction process between laser and MZA powder was tracked using Trace Pro software.Scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS)were used to explore the welding mechanism of heterogeneous transparent plastics.Finally,the effects of powder particle size,powder layer width,and thickness on welding strength and weld characteristics were investigated.The results indicate that the interaction between laser and MZA powder exhibits a composite reflection behavior and propagates forward along the gaps of metal particles;The welded joint is composed of a"pinned"structure and chemical bonding;In MZA powder with a particle size of 48 μ m.Under the condition of a powder layer width of 3 mm and a powder layer thickness of 0.08 mm,PASF/PC welded parts have the best welding effect.
关键词
异种透明塑料/金属粉末/焊接机理/射线追踪Key words
heterogeneous transparent plastic/metal powder/welding mechanism/ray tracing引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据