Factors affecting the oscillation of rolling bearing of oscillating screen
Oscillating screen roll bearing is used for mining, vibrating screen machinery, vibration motor, bearing plays an important role in our life.
PRODUCT
The domestic current situation of the railway bearing isothermal quenching
by：Waxing
2020-10-06
1.
Material GCr15 GCr18Mo (
SKF-24)
0.
90-1.
05% c, 1。
65-1.
95%的铬,0。
15 ~ 0.
25%,0。
20 ~ 0.
mn2 40%。
230 ~ 240 ℃ by 3 HT process.
5 h 100% BL without using isothermal quenching BL + M: write alpha k, prevent ring write to brittle fracture surface compressive stress to prevent interference assembly split left quenching deformation process simple,
Don't temper)
3.
Automatic production line equipment rotary hearth, push plate, conveyor cycle type + + isothermal quenching cooling groove groove nitrate isothermal cleaning trough (
50% - KNO3 + 50% NaNo3 plus a small amount of water)
Cleaning 60 ~ 80 ℃ water 3.
1.
Nanjing pu town overlook the isothermal quenching production line B X1 bearing ring GCr18Mo same workpiece hardness 1 HRC or less the same workpiece hardness 2 hrc60 ~ 61 or less.
5 HRC 235 ~ 240 ℃ by 5 h HRC left 1 or less organization: BL + M deformation: up a large number of stable, elliptical deformation left 3.
2.
Wafangdian bearing group B isothermal quenching production line NJP3226X bearing outer ring GCr18Mo process: on stage material to protect the atmosphere rotary hearth furnace heating, quenching tank lifting feeding manipulator to quenching platform, quenching and isothermal quenching groove groove lifting feeding manipulator to isothermal quenching tank, cooling the typhoon wind cold and hot water immersion to rinse, dryers and unloading machine for discharging process curve: bearing: HRC59 FC202870, 6488240 rolling mill bearing.
5 ~ 61 deformation: FC405819 ovality 0.
06 ~ 0.
20 mm radial rose 0.
55 ~ 0.
70 mm in height up big zero.
15 ~ 0.
20mm
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