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无缝药芯焊丝表面无镀铜涂敷工艺研究

Wei Mengfei, Huang Dong, Zhang Xiao,Kong Hongyu, Fan Huiqing

Steel Wire Products(2023)

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Abstract
传统镀铜焊丝存在镀铜层与基体结合力差,焊接飞溅大等问题.依据焊丝涂层的作用、功能及使用条件,确定了试验所用3类环保型无镀铜材料,并完成了涂层溶液配制:硅酸锂溶液基涂层溶液、改性有机硅乳液3026基涂层溶液和DW超导水性聚合物基水性混合涂层溶液.通过对不同涂层的效果进行对比,得出最佳的涂层溶液为DW超导水性聚合物基水性混合涂层溶液,给出涂敷工艺参数:涂敷速度0.09~0.19 m/s,浸涂液温度60~70℃,涂层固化温度120~180 ℃.结果表明DW超导水性聚合物基水性混合涂层成膜较好,均匀且完整;另证明了纳米粉填补技术不仅可以进行涂层裂纹的修复,同时还能增强涂层的结合力,具有可实施性.
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Key words
flux cored welding wire,non-copper plated,environmental protection,nano powder supplement technology
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