Imported bearing processing route

1, imported bearing blanking process route to forging blank, isothermal spheroidizing annealing to turning processing to coarse grinding, quenching, tempering to fine grinding, stabilizing treatment ( Additional tempering) And lapping surface to inspection to finished product, cleaning, rust. 2, imported bearing/prepare heat treatment GCr15 steel preparation is the spheroidizing annealing heat treatment, aim to enable an organization to uniform distribution of fine granular pearlite, and get the best machining performance and provide good original organization for quenching, quenching and tempering after get the best mechanical properties. GCr15 steel annealing organization for uniform fine pearlite. 3, import bearings/turning processing 3. 1 coarse car according to the turning process drawing for rough turning processing, cutting speed, cutting process in strict accordance with the provisions of ( General cutting speed for the 5 r/min. Cutting allowance of 10 mm ~ 12 mm) 3. 2 rough turning of bearing parts, after the completion of coarse car using three bearing, flat ( Don't allow together) , the aging time not less than 48 hours to finish turning processing. Fine car bearing parts, the cutting speed at six to eight revolutions per minute, cutting quantity to zero. 3 to 0. 5mm。 3. 3 forming essence car molding parts the last car, to prevent deformation of parts, parts should be the fixed clamping device to loosen, make parts in no stress state, the turning speed of 8 rotations per minute (RPM), cutting the amount of 0. 2mm。 4, imported bearing/cleaning in 80 ~ 90 ℃, 3% sodium carbonate ( The mass fraction) Heat cleaning in aqueous solution.