▎ 摘　　要

NOVELTY - An anticorrosive silicon carbide (SiC) shed board comprises 30-40% SiC particles, 15-20% SiC coarse powder, 14-19% SiC fine powder, 5-10% SiC ultrafine powder, 10-15% graphene, 2-4% composite antioxidant, 6-8% composite binder, 0.2-0.5% lubricating grease and 0.7-1.5% molybdenum disulfide. USE - An anticorrosive silicon carbide (SiC) shed board. ADVANTAGE - The anticorrosive SiC shed board has high strength, good heat conductivity and excellent thermal shock resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing anticorrosive SiC shed board which involves (a) material selection in which particle size of SiC is 1-3 cm, of SiC coarse powder is 0.5-15 mm, of SiC fine powder is 0.2-12 mm, and of SiC ultrafine powder is 10-100 nm; (b) mixing and stirring, according to the weight percentage of the formula, SiC particles, SiC coarse powder, SiC fine powder, SiC ultrafine powder, graphene, composite antioxidant, composite binder and lubricating grease to obtain the mixed powder; (c) pressing obtained mixed powder with a vibration forming press to obtain SiC blank; (d) drying SiC blank obtained in step (c) at 280-320 degrees C for 1-3 hours, and drying at 65-85 degrees C for 12-24 hours; (e) firing treated SiC blank in a vacuum furnace at 2100-2300 degrees C for 5-10 hours, and keeping at 1750-1850 degrees C for 12-16 hours to obtain semi-finished SiC shed board; and (f) spraying molybdenum disulfide on the surface of semi-finished SiC board by plasma spraying technology, with a thickness of 0.5-0.8 mu m, to obtain the anticorrosive SiC shed board.