Damp-proof rustproof coating solder ring and preparation method thereof

• Main Authors: LYU DENGFENG, ZHU KUN, HUANG CHENGZHI, ZHANG LEI, PAN SHISHI, BAO LI, GUO YANHONG, YU QI
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2018
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention relates to the field of welding materials, in particular to a damp-proof rustproof coating solder ring and a preparation method of the damp-proof rustproof coating solder ring. The damp-proof rustproof coating solder ring comprises a solder inner core, a metal coating, a high-activity soldering flux layer, a weak dampness absorption soldering flux layer and an outer damp-proof layer,wherein the periphery of the solder inner core is plated with the metal coating, the periphery of the metal coating is coated with the high-activity soldering flux layer, the periphery of the high-activity soldering flux layer is coated with the weak dampness absorption soldering flux layer, and the outer damp-proof layer adheres to the periphery of the weak dampness absorption soldering flux layer; and the solder inner core is spring-shaped solder, the metal coating is a tin coating or an indium coating, the high-activity soldering flux layer is made of QJ102 silver soldering powder, the weak dampness absorption sol