▎ 摘　　要

NOVELTY - Metal powder core, comprises 20-35% ferrosilicate, 15-30% boron powder, 3-10% boron oxide powder, 12-20% manganese aluminum alloy powder, 0.1-0.5% graphene, and iron powder (remaining amount). USE - Metal powder core. ADVANTAGE - The in-situ generating iron boride reinforced self-protection metal powder core welding wire has good welding forming, high hardness and good wear resistance, and increases the uniformity of the powder system, chemical stability and safety. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: in-situ generation of iron boride reinforced self-protection metal powder cored welding wire; and preparation method of in-situ generation iron boride reinforced self-protection metal powder cored welding wire.