Wear design factors slurry pump manufacturer ‘s Many wear design factors slurry pump manufacturer , and different parts and different parts of the wear mechanisms are not the same , but in general can be summarized in three categories:
1 Erosion : In the slurry pump manufacturer during operation , the liquid to solid particles carried in a flow rate on the surface of the impact member , resulting in material loss. According to the analysis of the failure of component wear surface erosion mechanism can be divided into cutting wear and deformation wear and fatigue wear of the cutting + composite deformation .
2 cavitation damage : During operation of the pump, the flow components which local region ( usually at the impeller inlet later ) , for some reason , the liquid pumped into the time when the absolute pressure drops to the vapor pressure of the temperature , at which the liquid begins vaporized to generate steam , the formation of bubbles . These bubbles with liquid flow forward , up to a higher pressure , the bubbles collapse dramatically reduced even . Meanwhile in the bubble condensation , liquid particles at high speed filling voids , and have a strong impact on the metal surface . This metal surface spalling due to the impact of fatigue , resulting in material loss , severe metal surface showing honeycomb . Parts of cavitation usually occurs in the impeller outlet and volute inlet .
3 corrosive wear : When the transmission medium has a certain pH , slurry pump manufacturer flow components will happen corrosive wear , namely the loss of material phenomena occur under joint action of corrosion and wear .
Corrosion can be divided into chemical corrosion and electrochemical corrosion. Chemical corrosion of metal and liquid media direct response leaving the metal loss , electrochemical corrosion in liquid medium is the role of the metal surface to form micro- battery leaving the material loss. Since actual use of the metal material are multiphase polycrystalline materials, therefore, a primary corrosion , electrochemical corrosion , especially crystal boundary corrosion, intergranular cracks are formed metal surfaces , and to isolate the hard phase grains or , lost support , so it will come off in the erosion occurred solid particles ; while scouring the solid particles , and the metal surface corrosion due to the passivation layer is rubbed to produce liquid medium in contact with the metal surface to increase new corrosion . Slurry pump manufacturer in the failure analysis of the existence of the phenomenon has been found to have corrosion .
Post time: Jul-13-2021