▎ 摘　　要

NOVELTY - Light-weight, high-conductivity slip ring comprises a base material (2) and a coating (3) covering the base material, where the base material includes 5-10 %mass graphene and 90-95 %mass titanium hydride, and the coating include 0.5-1.3 %mass lanthanum oxide, 1-2 %mass tungsten sulfide, 7-12 %mass carbon nanotubes, and remaining silver. USE - The light-weight, high-conductivity slip ring is used for aerospace. ADVANTAGE - The slip ring is light-weight, enhances the hardness of the slip ring coating and arc corrosion resistance, improves the ability of slip ring working surface antifriction and wear resistance, compared with pure silver, the current carrying performance is improved, the process is simple, and the manufacturing cost of the conductive slip ring for aerospace is reduced. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the slip ring, involving (a) mixing the graphene powder and the titanium hydride powder in the required proportions, packing into a rubber sleeve after mixing the powder, and pressing the rubber sleeve after the air extraction to obtain a blank, (b) sintering the blank to obtain a base material, and subjecting the sintered base material to surface texture treatment, (c) mixing the lanthanum oxide powder, tungsten sulfide powder, carbon nanotube and silver powder in the required proportions, and drying the mixed powder, (d) preheating the substrate by laser irradiation, (e) using ultra-high-speed laser cladding to clad the powder obtained in step (c) on the surface of the substrate to form a conductive coating, and (f) polishing and grinding the coating to obtain the slip ring. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the light-weight, high-conductivity slip ring. Brush wire (1) Titanium-graphene base material (2) Silver-carbon nanotube-tungsten sulfide-lanthanum oxide composite coating (3)