▎ 摘　　要

NOVELTY - Preparation of aluminum alloy inner cylindrical wall surface to generate wear-resistant coating involves mixing graphene powder and aluminum powder at mass ratio of 0.1-0.5:99.5-99.9 to obtain graphene sheet with 1-5 nm thickness, adding iron oxide powder, zinc oxide powder, silicon oxide powder, boron oxide powder and copper-titanium alloy powder at mass ratio of 62-65:7-9:1-3:1-3:2-17 and mixing to obtain mixed powder; pouring obtained slurry into cylindrical cavity of aluminum alloy work-piece, installing aluminum alloy work-piece into horizontal rotary table, rotating, heating at 80-100 degrees C and solidifying; and curing solidified slurry, maintaining rotation, burning with oxyacetylene flame, melting, solidifying and reacting into cured coating. USE - Method for preparing aluminum alloy inner cylindrical wall surface to generate wear-resistant coating. ADVANTAGE - The method has low reaction temperature, and can improve compactness and binding strength of coating. DETAILED DESCRIPTION - Preparation of aluminum alloy inner cylindrical wall surface to generate wear-resistant coating comprises: (1) mixing graphene powder and aluminum powder at mass ratio of 0.1-0.5:99.5-99.9 to obtain graphene sheet with 1-5 nm thickness, adding iron oxide powder, zinc oxide powder, silicon oxide powder, boron oxide powder and copper-titanium alloy powder at mass ratio of 62-65:7-9:1-3:1-3:2-17 and mixing to obtain mixed powder; (2) mixing obtained mixed powder with polyvinyl alcohol liquid, heating at 82-85 degrees C, and subjecting into spray granulation to obtain low temperature self-propagating liquid glass and composite material; (3) mixing and stirring composite material and low temperature self-propagating liquid glass to obtain slurry; (4) pouring obtained slurry into cylindrical cavity of aluminum alloy work-piece, installing aluminum alloy work-piece into horizontal rotary table, rotating, heating at 80-100 degrees C and solidifying; and (5) curing solidified slurry, maintaining rotation, burning with oxyacetylene flame, melting, solidifying and reacting into cured coating.