Abstract:In order to solve the problem that the clamp of Cu-Al transition equipment is cracked due to improper welding process control, electric corrosion and other factors, which brings great pressure to the power grid operation safety, a new type of Cu-Al transition equipment clamp based on CGDS technology is proposed in this paper. Based on CGDS technology, the causes of fracture of wire clips of existing Cu-Al transition equipment and common optimization methods were analyzed. A wire clip formed based on CGDS technology was proposed to prepare copper coating on the surface of aluminum by direct cold spraying. The preparation technology and process characteristics of new wire clips of Cu-Al equipment based on CGDS technology were presented. Finally, 400 mesh, 600 mesh and 800 mesh copper powder were selected to carry out experiments under different main gas pressures (2.5Mpa, 3.0Mpa, 3.5Mpa) and different heating temperatures (400℃, 600℃, 700℃, 850℃), and the changing rules of the bonding strength test curve were given. It is proved that CGDS technology can improve the overall electrical conductivity and reliability.