Plasma spraying rewinding roller and manufacturing method thereof

The invention discloses a manufacturing method of a plasma spraying rewinding roller. The manufacturing method comprises the following steps: 1, removing greasy dirt on the surface of the rewinding roller, and protecting non-spraying surface of the rewinding roller by using an adhesive tape or a tool; 2, carrying out sand blasting treatment on the surface of the rewinding roller treated in the step 1 so as to make the surface of the rewinding roller be coarsened uniformly and matt; and 3, carrying out plasma spraying on the surface of the rewinding roller treated in the step 2 to coat the surface of the rewinding roller with a uniform continuous coating, specifically, the coating uniformity is +/-0.01 mm, the roll surface jump is less than 0.02 mm, and the coating surface roughness value Ra is 16-30 [mu]m. According to the manufacturing method, the coating has good comprehensive performance (the bonding strength is greater than 25 MPa, and the hardness HV0.3 is greater than 900), the use requirement of the re