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I. View. Carefully check the bearing body, bearing seat and sealing ring; remove the anti-corrosion oil; then microscopically view the bearing body bearing seat; require some light and smooth inside the bearing and the bearing seat; there should be no dents, cracks, Corrosion burrs and other shortcomings that cause stress gathering; after the end of the inspection; black lead powder should be applied to the exterior of the part (note that excessive black lead powder is blown off with compressed air) to prevent corrosion. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
3. Pairing number. To prevent seizure and reduce wear in the bearing housing; the bearing housing data should be lower than the bearing body by 1 level; the hardness value is low HB20 to 50. To prevent the hardness difference between the bearing body and the bearing housing formed by random pairing is too large. Or too. 沧笆 è¦ è¦ è¦ è¦ è¦ è¦ è¦ æ¿‰ 濉 濉 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 Damaged end face.
5. Viewing and grinding of the sealing ring. On the modern large-scale unit; the high-temperature bearing mostly uses the spherical sealing ring; the additional bending stress of the bearing body can be greatly eliminated; in the process of the device, the sealing ring and the bearing bearing bearing surface and the sealing ring are mastered. Touch view with the bearing surface of the cylinder/flange; mainly use the method of coating red hole and feeler gauge to check the gap; if the touch is not uniform; after obtaining the permission, the method of grinding the bearing bearing surface and the cylinder and flange bearing surface is selected. Disposal. When checking, the sealing ring and the bearing seat should be repeatedly matched and viewed; if the touch error can be offset, the disposal workload can be greatly reduced.
Sixth, the device. Before the end of the bearing body device and tightening; the final inspection of the bearing body should be carried out; remove debris and ash; especially the debris between the bearing housing; together on the cylinder, the valve The wire hole is carefully arranged; the debris and water are removed. The bearing body and the bearing seat should have no damage to the function and reliability; the bearing body, the bearing seat and the sealing ring should be paired in the direction of the bearing. It should be coated with molybdenum disulfide high temperature anti-bite agent; however, the anti-seize agent should not be used for alloy steel bearing body containing nickel (can be replaced with copper-containing graphite smoothing agent). Cold and hot tightness should be from the vertical arc of the cylinder. The beginning of the largest (middle); symmetrical to the two ends; because the tightness of the bearing body will be reduced after the adjacent bearing body is tightened; therefore, the cold and the tightness should be tightened twice. The bearing body heat The heating orientation is the middle hole of the bearing body; it prevents some direct heating of the bearing body and the bearing housing.
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High temperature bearing device key
Source: Bearing network time: 2018-05-11