Date: 2013-08-20

FAG heat treatment of bearing parts in three steps

Repairs in FAG bearings, a common method of heat treatment quenching, tempering, annealing, and so three, tool is a spirit lamp, and Blowpipe, method is simple, but very practical.
1, hardening:
Parts of the file system are generally hardened, to increase the hardness of parts, laying the foundations for polishing, polishing.
Quenching is the wet steel parts of the file system, some surface dipped in borax, burn Red in the spirit lamp l with a Blowpipe, put in the oil. Parts surface coverage of borax in order to prevent parts of decarbonization phenomena. Broken parts as a result of the fire on the surface with a layer of borax, black.
Must be removed before tempering. It is the parts put water with borax in a copper container, and seven heated boiling alcohol lamp, automatically on the borax from the part fell off.
2, tempering:
Part is very hard, brittle, as quenching, tempering treatment must be carried out, achieving suitable hardness. Usually quenched parts placed on the copper plate, heating in the spirit lamp, make the parts stops heating after Brown, natural cooling in the air. Parts tempering hardness is generally between Rockwell hardness r C55-62. FAG bearings machine parts (steel) hardness requirements recommended in the appendix in NV.
3, annealing:
Annealing aims to reduce the hardness to facilitate long, vehicles, traffic congestion, drilling operations.
Its method is to use a part or parts of the local heat to Brown at the spirit lamp, natural cooling in the air. After annealing, hardness of parts reduced, then machined. For steel parts in order to again increase its hardness, machine processing should be carried out again after quenching, tempering treatment.

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