After using for a period of time, it is common to find spots or discoloration on the surface of the slewing bearing, which not only affects its appearance and smoothness, but also directly affects the performance and service life of the bearing. So, how to improve the brightness of the surface of the slewing bearing? What are the good methods to solve this problem? Let's learn together.
Electroplating is a method of depositing the required cover layer on the surface of the slewing bearing substrate by electrolysis, forming a shiny protective film. This method can not only improve the surface brightness of the slewing bearing, but also play a role in surface rust prevention. Electroplating can be divided into single-metal electroplating, multi-layer composite electroplating, and alloy electroplating, etc. There are many factors affecting the quality of the plating layer, such as pre-plating treatment, purification method and degree of plating solution, rationality of pre-plating method, establishment of plating solution system, combination and thickness determination, process parameters (PH value, temperature, current density), additives (brighteners, leveling agents, stress-relieving agents, wetting agents, dispersants), plating solution analysis and supplementary system, operation system, post-plating treatment (dehydrogenation, sealing), etc. Of course, this electroplating layer only plays a protective role on the surface of the slewing bearing, and there is no change in the internal structure of the bearing. During daily use, wear and tear can still affect the brightness of the bearing surface, and there is a risk of rusting.
By mechanically changing the surface layer of the metal through plastic deformation, the hardened layer with higher hardness and strength can be improved, which can increase the density of dislocations and refine the substructure of the surface of the slewing bearing, thus increasing its hardness and strength. The roughness value of the surface is reduced, which can improve the surface brightness of the bearing from an external point of view, and also improve the surface fatigue strength of the parts and reduce the sensitivity of the fatigue notch. The first two methods are how to improve the surface brightness of the slewing bearing before use, while during the use process, only post-maintenance and cleaning can maintain the surface brightness of the bearing.
In the process of using the slewing bearing, suitable solvents should be selected for cleaning, so as not to damage the surface rust prevention technology of the slewing bearing, and to avoid serious corrosion phenomena. Good surface cleaning can restore the brightness of the slewing bearing.
Do a good job of maintenance of the slewing bearing during daily use, and regularly lubricate and maintain the bearing. In addition to lubrication work, attention should also be paid to keeping the surface of the bearing dry, which can also improve the surface brightness of the bearing.
The metal luster of the bearing steel of the slewing bearing is actually very bright. The reason why we have the demand to improve the surface brightness of the bearing is due to insufficient rust prevention and cleaning during use. Therefore, doing a good job in rust prevention and cleaning of the bearing is also very important for improving the surface brightness of the slewing bearing. Doing a good job of cleaning and maintenance of the bearing during use can increase its brightness, and doing a good job of rust prevention treatment before use can also increase the surface brightness of the slewing bearing.