Water ring vacuum pump cast iron cracks how to repair?

Water ring vacuum pumps were originally used as self-priming pumps. It is composed of impeller, pump body, intake and exhaust disc, water ring formed in the wall of the pump body, suction port, exhaust port, auxiliary exhaust valve and so on. Water ring pump is widely used in many industrial processes, such as vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum moisture return and vacuum degassing. Due to the rapid development of vacuum application technology, water ring pump has been paid more attention to the crude vacuum acquisition. Because the gas compression in the water ring pump is isothermal, it can be removed flammable, explosive gas, in addition can also be removed dust, water gas, therefore, water ring pump application is increasing. Water ring vacuum pump cast iron cracks how to repair?
The mechanical properties of cast iron parts of water ring vacuum pump are poor. The location and size of the crack must be found out before repair. For non - obvious crack defects, kerosene test is often used to identify a simple method.
First, an aqueous solution of chalk was applied to one side of the suspect area, and when dry, kerosene was applied to the other side. Because kerosene has the ability to penetrate fine cracks, when the parts have a small very not obvious crack, kerosene can penetrate the past, infiltrate the white powder and make it discolored. Therefore, according to whether the chalk is discolored, and the shape and size of the discolored chalk, it is possible to determine whether there is a defect, as well as the shape and position of the defect. The cracks can be repaired by general welding method and epoxy resin bonding method.

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