Surface arc spraying strengthening of guide rollers used in paper industry

       The guide roller is also called the leader roller, and its main function is to keep the copper mesh in a normal and fixed position during operation and avoid the deviation of the copper mesh. The guide rolls used in the paper industry are mainly to guide and drive the wire mesh and felt in the wet end and drying section of the paper machine. Due to its high cost, after the surface of the guide roller is damaged, the surface of the guide roller is mostly strengthened by metal surface strengthening technology to improve the surface strength.

The surface strengthening of functional rollers such as guide rollers is one of the workpieces that wococarbide.com often repairs. This time, the surface of the guide rollers with φ396*5350 specification is strengthened. After analysis by technical personnel, the supersonic arc spraying process is used to prepare nickel on the surface of the guide rollers. Aluminum alloy coating, coating thickness>0.6mm, roughness Ra0.4, requires good coating combination, no blisters, pores, peeling and other phenomena.

In the surface strengthening of the guide roller, the preparation of qualified metal coating is the basic guarantee. On this basis, the dynamic balance and sealing of the guide roller after spraying are also important links. The metal thermal spraying strengthening technology not only needs to spray a qualified metal coating on the surface of the workpiece, but also adjusts various dimensions according to the operation of the workpiece, so as to ensure that other dimensions can be used normally on the basis of achieving surface strength.