Vertical mill/ Roller press Surfacing roller

1. Remove the residual hard layer and cracks on the roller surface. Use carbon arc air gouging to thoroughly clean the surfacing area of the roller surface, clean the residual hard layer, cracks, dust, rust, etc., and polish it to reveal the metallic luster.

2. Surfacing welding base layer. Use ZD1 welding wire for surfacing. Through the welding of the bottom layer, the uneven roller surface forms a relatively flat outer cylindrical surface, which is convenient for the welding of the buffer layer and the wear-resistant layer.

3. Use ZD2 welding wire to weld the buffer layer. ZD2 welding wire is a high-strength, medium-hardness surfacing material with good fatigue resistance and bonding, and at the same time has certain wear resistance, which plays a good bridge role between the roller body and the wear-resistant layer. Good buffer layer material selection and welding are important prerequisites for ensuring the safe and effective operation of the wear-resistant layer.

4. Use ZD3 welding wire to weld the wear-resistant layer. Pay attention to measuring the roller body size and roundness during welding, and weld until the roller body reaches the required size.

5. Finally, weld the wear-resistant horizontal bars. After the wear-resistant layer is welded, use ZD310 welding wire to weld the horizontal bars.