Furnace roll is a core component in cold rolling continuous annealing unit and continuous hot-dip galvanizing unit annealing furnace. Due to long-term service at high temperature, in addition to having excellent heat resistant performance including high strength, strong resistance to high temperature oxidation corrosion, good wear resistance and excellent thermal shock resistance, the furnace roll surface coating must have excellent ability to resist accumulated burl (accumulated burl of Fe for ordinary steel and accumulated burl of Mn for high-strength steel) to ensure the quality of strip steel, long-term roughness retention performance and the establishment of tension in the furnace. Anhui Taier Surface Engineering Technology Co., Ltd. adopts international advanced continuous spraying technology including HVOF and plasma arc, the high temperature superalloy + ceramic coating manufactured has the advantages of long service life and high cost performance, and advanced post treatment equipment and technology can be used to manufacture the furnace rolls of various roll types and different roughness.