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The key technology of bearing surface treatment

The key technology of bearing surface treatment

2020-05-18

1.Main raw materials: ultra high molecular weight polyester carborane polymer resin;Nanometer molybdenum disulfide;Antirust and oil absorption nanometer groups;Micro - tetrafluoroethylene and other mixtures of nano - powder.The above raw materials are all independently developed by our institute and can be produced in a small quantity in the laboratory.

   

2.Purpose: to improve the rust resistance of bearing surface;Reduce the coefficient of surface friction;Comprehensive resistance to friction and wear. 

   

3. Suggestions for use:

1) removing rust such as oil on the surface of the bearing. 1. Press with research and development of our industrial efficient degreasing powder is mixed with water and 1% and 3%, the bearing ring into the fluid in the heat to 70 degrees to 85 degrees for 30 minutes (intermittent mixing), stop the heating to be cold to 40 degrees one bearing ring immersed in water brush with wool washing, especially of spherical bearing work to scrub a few times more, when scrubbing of bearing ring can not leave the water. Note: this liquid can be removed after the oil floating on the surface of bead reuse again;2. Rinse with clean water of about 40 degrees twice, and the two rinses can be reused;When the oil is thick, brush it twice more with 3% ratio and remix cleaning liquid. 

2) the lm-1198a super concentrated cleaning liquid is used to remove the lubricating oil immersed in the deep pores of the bearing phosphating layer to make room for the resin containing molybdenum disulfide, etc. The specific method of use is as below 0.The proportion of 5% is heated to 85 ° c to 99 ° c with the water and the cleaning agent (the cleaning agent can be connected to the surface and removed after cooling and reused once). The bearing workpiece can be soaked in the cleaning agent and washed with brush once, and then rinsed with clean water at a temperature of more than 70 ° c for a second time.

3). Put the basically drained bearing ring into the oven at 60 ° c /10 mins and then adjust it to 110 ° c /10 mins.The bearing ring with high temperature after taking out is easy to rust, treatment method: quickly pour into the sealed bucket, pour while spraying a little anhydrous ethanol (industrial alcohol), pour into a layer of ring and spray a thin layer of alcohol (do not spray too much), seal the seal bucket cover, the bearing ring stored in the sealed bucket since cold after use.Storage in sealed drums is mainly to prevent rust.Need to paint when it is taken out, how much to take how much side coating or dip into the paint or spray on the paint.As long as the bearing ring is coated with adhesive liquid, it will not rust. Seal the barrel cover in time after taking it out to minimize the bearing ring's contact with air.It can be kept for 3-6 days without rusting according to the local humidity or sealing condition.

4.Basic principle: the nano material can be immersed into the surface surface of the bearing by using the resin with low surface energy to produce cracks and cracks in the surface surface of the bearing due to cracking, stamping, etc., and the surface phosphating film micro holes or cracks, so as to fully fill in the horizontal and vertical "grooves" on the bearing surface that can only be seen under the microscope, so as to achieve the purpose of anti-rust and anti-wear performance. 

When bearing surface treatment technology, generally USES the bearing of working face in the generation of functional nano materials, in the rust/corrosion/wear resistance (longevity)/low friction coefficient, high temperature resistant/thermal expansion contradiction balance processing precision and gap /, and other comprehensive performance is greatly improved and contradictory quality index, offers an excellent balance.This process is one of the most critical technologies for bearing quality.


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