Biomass fuel forming mold surface powder metallurgy strengthening coating material and process

The invention belongs to the technology for improving biomass fuel forming mold surface hardness (namely improving abrasion resistance of the surface) and particularly relates to a biomass fuel forming mold surface powder metallurgy strengthening coating material and a process which aim at solving the problem of serious abrasion of the biomass fuel forming mold surface. The process includes: weighing appropriate mass of powder according to the area of the portion of a mold needing strengthening and the thickness of a pre-strengthening layer, wherein the powder is composite powder formed by mixing cobalt/nickel-based self-fluxing alloy powder and non-metallic ceramic powder in proportion; adding appropriate amount of bonding forming agents in the composite powder and sufficiently mixing through vacuum stirring to obtain plastic powder bodies; and evenly coating the powder bodies on the biomass fuel forming mold surface, drying and conducting powder metallurgy strengthening in a vacuum furnace according to corresponding temperature rising curves. Hardness of a powder metallurgy strengthening coating can reach rockwell hardness (HRC) 50-70, the thickness is above 2 mm, the coating is smooth, light and free of pore cracks, and a binding interface between the coating and a substrate is fused in metallurgy mode and is even in texture and free of obvious defects.