GB/T 43765-2024 "Aerospace functional plating, particle-reinforced metal-based composite welding plating" specifies the technical requirements, test methods, inspection rules, identification, accompanying documents, Encasement, transportation and storage conditions for particle-reinforced metal-based composite welding plating. This standard applies to the inspection and acceptance of particle-reinforced metal-based composites such as aluminum-based silicon carbide, copper diamond, aluminum silicon, etc., and welding coatings such as lead-tin, gold, and electroless nickel used in electronic packaging. The standard details the preparatory methods and performance requirements for welding coatings to ensure their Reliability and Stability in aerospace applications. At the same time, the relevant environmental testing, adhesion strength evaluation, coating thickness measurement and other standard methods are cited to ensure that the mass of the coating meets international standards.