The axis seal of the chemical pump generally uses the advantages of abrasion resistance, heat resistance, good softness, and high strength. We are using the plate to find the following shortcomings: ① The surface of the filler is rough, the friction coefficient is large, there is leakage, there is leakage The phenomenon, which is used for a long time, is easily lost. ② The newly repaired equipment, the axis seal is in good condition at the beginning of the operation, but it can't take long, the leakage continues to increase, and the work of adjusting the cover and replacement of fillers is gradually frequent. Within a cycle, the axis cover has been worn into vases. In severe cases, the axis sleeve is broken, and the plate -rooted fillers that cannot be replaced behind the water sealing ring have been rotten, and they cannot play a sealing role. ③ The filler is directly contacted with the axis, and the relative rotation is relative to cause the wear of the shaft and the axis cover, so the shaft sleeve must be replaced regularly or irregularly. ④ In order to make the friction heat generated between the pan and the axis or axis, it must be dispersed in time. ⑤ The friction between the plate root and the axis or axis cover, causing the principle of the effective filler of the motor to reduce the power and consume the power.