▎ 摘　　要

NOVELTY - Graphene composite powder solder comprises tubular jacket material and filler powder. Tubular jacket material is low-carbon steel or low-alloy steel. Filler powder comprises iron-based graphene powder, ceramic powders, boron, chromium, nickel, refractory metal and aluminum oxide powder at mass ratio of 40-82:1-10:5.1-7.5:2-20:1-4:1-5:5-20. Mass ratio of iron and carbon is 40-80:1.1-2. USE - Graphene composite powder solder. ADVANTAGE - The material has improved surface hardness and abrasion resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene composite powder solder comprising taking graphite powder and iron powder, drying at 100-150 degrees C for 0.5-2 hours, mixing for 2-12 hours, sieving at 270 mesh, mixing filler powder materials, and filling tubular jacket material.