Foot roller of continuous casting crystallizer and manufacturing method of foot roller

The invention relates to a continuous casting crystallizer foot roller and a manufacturing method thereof, the foot roller is composed of a base body and a cladding layer, the cladding layer is cladded on the surface of the base body by adopting a laser cladding method, and after cladding, the cladding layer comprises the following metal chemical components in percentage by mass: 0.02-0.07% of C, 12.5-15% of Cr, 5-6.5% of Ni, 1-1.5% of Mo, 0.2-0.4% of V, 0.15-0.3% of Nb, 1.7-2.5% of Co and the balance of Fe. The method has the beneficial effects that the cladding layer is formed on the surface of the matrix by adopting a laser cladding method, so that the heat resistance, corrosion resistance and wear resistance of the foot roller of the continuous casting crystallizer can be remarkably improved, procedures such as heat treatment are not needed, the production cycle is short, the manufacturing cost is low, the service cycle is long, the cost performance is high, and the use cost can be greatly reduced. 本发明涉及一