▎ 摘 要
NOVELTY - The piece has component that is selected from 55-65pts. Wt titanium diboride, 8-12pts. Wt graphene micro-piece, 5-7pts. Wt copper fiber, 4-6pts. Wt boron nitride and 1-3pts. Wt nano-silver. An area is provided with micron graphene micro-piece. USE - Evaporation boat metal aluminum film micron graphene micro-piece. ADVANTAGE - The piece has simple structure, low cost and better evaporation efficiency, and effectively improves aluminum melting and evaporation speed.