▎ 摘　　要

NOVELTY - Copper alloy coated with graphite powder comprises 20-50 pts. wt. copper sulfate, 3-5 pts. wt. stannous sulfate, 2-5 pts. wt. zinc sulfate, 20-50 pts. wt. graphite powder, 20-25 pts. wt. graphene, 0.8-1 pts. wt. reducing auxiliary agent, 1-2 pts. wt. aluminum dihydrogen phosphate and 0.1-0.2 pts. wt. composite auxiliary agent. USE - Copper alloy coated with graphite powder. ADVANTAGE - The copper alloy coated with graphite powder is highly efficient. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method for preparing reducing auxiliary agent, which involves mixing 50-70 pts. wt. hydrazine hydrate, 10-30 pts. wt. sodium hypophosphite, 4-5 pts. wt. polyethylene glycol (6000) and 4-6 pts. wt. sodium bicarbonate; (2) a method for preparing reducing agent, which involves dissolving sodium hypophosphite in water, heating the obtained mixture on water bath at 87-90 degrees C for 17-20 minutes, adding polyethylene glycol (6000) in the obtained mixture, preserving the obtained mixture for 4-7 minutes, cooling the obtained mixture. adding remaining components in the obtained mixture and stirring obtained mixture; and (3) a method for preparing graphene material, which involves adding composite auxiliary agent in 17-20 times of deionized water, heating the obtained mixture at 50-60 degrees C, adding copper sulfate, stannous sulfate, zinc sulfate, graphite powder and graphite in the obtained mixture, feeing the obtained mixture in a reaction kettle, heating the obtained mixture at 50-90 degrees C, adding reducing agent in the obtained mixture, adding hydrochloric acid and sodium hydroxide in the obtained mixture, preserving the obtained mixture for 120-130 minutes, adding aluminum dihydrogen phosphate in the obtained mixture, adding composite auxiliary agent emulsion in the obtained mixture, rotating the obtained mixture at 300-400 rotations per minute for 10-16 minutes, filtering the obtained mixture, washing the obtained precipitate, reducing the obtained mixture at 600-650 degrees C for 1-2 hours, introducing hydrogen in the obtained mixture, sieving the obtained mixture and packing the obtained mixture.