▎ 摘　　要

NOVELTY - A guide sleeve comprises 100-130 pts. wt. polyetherimide resin, 5-10 pts. wt. lubricant, 2-5 pts. wt. graphene, 10-20 pts. wt. p-phenylenediamine, 50-80 pts. wt. polycarbonate resin, 1-5 pts. wt. toughening agent and 2-8 pts. wt. antioxidant. USE - Guide sleeve (claimed). ADVANTAGE - The energy-saving guide sleeve has excellent rigidity, heat resistance, mechanical strength, modulus, impact strength, shrinkage resistance, deformation resistance and crack resistance. The lubricant contained in the guide sleeve can effectively improve friction between the guide sleeve and guide rod.