The Research Of Bearing Surface Hardening Pretreatment Process And Device

In this paper, using self-designed bearing pretreatment bench, Hydroxy magnesium silicate-based powder as lubricant additives, under the condition of the lubricating medium and working conditions, do pretreatment on6206rolling bearings. The test measured the noise of the bench spindle, surface temperature of the lubricating oil and bench motor output power. Use measurement data to generate the graphes, and use SEM materials testing technology to observe and analyze the surface of the rolling bearing samples. Investigate the anti-wear and friction mechanism of self-repair on worn metal technology, In order to use self-repair on worn metal technology on surface preparation of rolling bearings in practice, in this paper, design a bench which can be used for the actual pretreatment process.The results show that, when the lubricating medium as base oil, the rolling bearing surface of the work is easily to be worn, the friction surface of the adhesive wears, and can see a large number of furrows and scratches. After adding self-repair of the additive into lubricant, friction situation has been improved, the friction surface of the furrows shallows, the number of spalling pits reduces. When the speed of rolling bearing is950r/min, the repair effect of self-repair additive is the best. At this time, part of the friction surface area generates a layer of high wear resistance self-laminating. The trial conclus that when rolling bearings working, the self-repair additive reacts to the friction surface by the thermodynamics and dynamics effects, achieve rolling bearings wear surface in situ-line self-repair, reach rolling bearings pretreatment purpose.Multiple rolling bearings" surface strengthening preparation can be completed at one time through the internal shaft and gears in the rolling bearing pretreatment equipment by our own design, thereby improve the efficiency of the pretreatment.