▎ 摘　　要

NOVELTY - The optical fiber annealing tube is made of the raw material that comprises 60-80 pts. wt. coke primary powder, 8-12 pts. wt. high temperature pitch and 10-30 pts. wt. graphene flake powder. The coke primary powder is obtained by calcining, cooling and pulverizing coke. The D50 of the coke primary powder is 8-12 microm. The D50 of the graphene flake powder is 6-8 microm. The raw material comprises 4-6 pts. wt. polymethacrylate comprising polymethacrylate diethanolamine salt. USE - Optical fiber annealing tube used as structure in optical fiber drawing process and mainly prepared by isostatic pressing graphite. ADVANTAGE - The optical fiber annealing pipe has excellent high temperature stability and wear resistance, and improved comprehensive performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation method of new-type optical fibre annealing tube.