本实用新型涉及焊材领域，具体的说是一种防潮且防锈的药皮钎料环。包括钎料内芯、镀附在钎料内芯外周的金属涂层、包覆在金属涂层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，所述金属涂层为镀锡层或镀铟层，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。本实用新型的钎料环换能够避免钎料内芯腐蚀、钎剂活性强。

The utility model relates to the field of welding materials, in particular to a damp-proof and rust-proof coating solder ring. It includes an inner core of solder, a metal coating plated on the outer periphery of the inner core of the solder, a highly active flux layer covering the outer periphery of the metal coating, a weak moisture-absorbing flux layer covering the outer periphery of the high active flux layer, A moisture-proof outer layer adhered to the outer periphery of the weak moisture-absorbing flux layer; the inner core of the solder is spring-shaped solder, the metal coating is a tin-plated layer or an indium-plated layer, and the high-activity solder layer is QJ102 It is made of silver solder powder, the weak moisture-absorbing flux layer is made of FB308S silver solder powder, and the moisture-proof outer layer is made of organic binder material. The solder ring exchange of the utility model can avoid the corrosion of the inner core of the solder and the activity of the solder is strong.