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In the multi-stage centrifugal pump and gear pump parts cleaning, the cleaning requirements of plated lids and bonded parts are the highest, and the cleaning quality is not high. This is often the cause of plating or bonding failure, and the quality of parts assembly cleaning, the use of machinery The longevity has a great influence. Because of the severe cleaning gaps, a large number of abrasives are infiltrated in important friction pairs, or the early wear and accidental destruction of the machinery are caused by the blockage of the oil passage due to dirt. In some cases, there is not enough formal repair work. Occurs and must be watched.
The following is a brief summary of the cleaning methods and precautions for several components of multi-stage centrifugal pumps:
1) Scrape scales and rust on the inside and outside surfaces of the impeller, seal rings, and bearings, and clean them with water or compressed air.
2) Clean grease and rust on the mating surfaces of the pump housing.
3) Clean the water seal tube and check if the tube is open.
4) Wash bearings and bearings, remove grease, and then clean the oil ring and oil level gauge. Ball bearings are cleaned with gasoline.
5) The parts and components that are not assembled for the time being should be protected by oil after cleaning.
Cleaning is an important part of the repair work. The quality of the cleaning has a great influence on the quality of the repair of the machine. The use of an accurate cleaning centrifugal pump method to improve cleaning quality and reduce costs is one of the issues that repair workers must consider. The cleaning in the repair work includes the external cleaning of the machine and the cleaning of the parts, and the cleaning of the parts can be divided into the pre-identification cleaning, the pre-assembly cleaning and the pre-bonding cleaning of the parts prior to bonding.