Production Process:
1, to control the forging temperature, do not die coarse;
2, to control the modulation process, to ensure that the heart of the quenched and conditioned organization, so as to ensure its mechanical properties;
3, the surface of the quenched hardened layer depth control;
4, to avoid surface cracks.
Parts cleaning process:
1. Inspection of forging blanks
2. Rough car
3. Rough car aging
4. Fine car
5. Forming fine cars
Cross ring, three-row roller slewing bearing inner ring special craft: In order to prevent cross, three-row roller slewing bearing inner ring after heat treatment deformation. Turning processing must be done in pairs, that is, the back-to-back raceway processing, not cut before heat treatment, hot cut molding.
6. Heat treatment
Surface raceway quenching (sometimes customer requirements can be carburized, nitriding, carbonitriding, etc.)
After quenching and tempering
7. Rolling and milling
8. Blue, Phosphorizing, Vulcanizing, etc. can be processed according to customer requirements during drilling
9. Grinding can be divided into two processes: rough grinding and fine grinding. 10. Parts inspection
10. Demagnetization, cleaning, assembly, surface rust-proof oil, filled grease, sealing nozzle, packaging (plastic film bag inner layer, kraft paper middle layer, nylon plastic tape winding outer layer).
