本实用新型涉及焊材领域，具体的说是一种活性强且防潮的药皮钎料环。包括钎料内芯、包覆在钎料内芯外周的高活性钎剂层、包覆在高活性钎剂层外周的弱吸潮钎剂层以及粘附在弱吸潮钎剂层外周的防潮外层；所述钎料内芯为簧状钎料，所述高活性钎剂层采用QJ102银焊粉制作，所述弱吸潮钎剂层采用FB308S银焊粉制作，所述防潮外层采用有机粘结剂材料制作。通过本实用新型可增加钎焊可靠性、提高钎焊效率。

The utility model relates to the field of welding materials, in particular to a coating solder ring with strong activity and moisture resistance. Including a solder core, a high-active flux layer covering the outer circumference of the solder core, a weak moisture-absorbing solder layer covering the outer circumference of the high-activity solder layer, and a moisture-proof adhered to the outer circumference of the weak moisture-absorbing solder layer Outer layer; the inner core of the solder is spring-shaped solder, the high-activity solder layer is made of QJ102 silver solder powder, the weak moisture-absorbing solder layer is made of FB308S silver solder powder, and the moisture-proof outer layer is made of Made of organic binder materials. The utility model can increase the reliability of brazing and improve the efficiency of brazing.