How to Repair Corroded Water Ring Vacuum Pump
The corrosion forms of water ring vacuum pumps can be divided into two categories: overall (uniform) corrosion and local corrosion. The former occurs more evenly on all surfaces of the equipment, while the latter occurs only locally. For example, pitting corrosion, crevice corrosion, intergranular corrosion, stress corrosion cracking, corrosion fatigue, hydrogen corrosion cracking, wear corrosion, delamination corrosion and so on.
It is one of the effective anti-corrosion measures for water ring vacuum pump to use polymer composite repairing material to carry out surface organic coating anticorrosion. Surface adhesion protection can be widely used in the repair and pre-protection of abrasion, cavitation and corrosion parts. It has good chemical resistance, excellent mechanical properties and bonding properties. Compared with the traditional welding repair of pressure vessel, it has the characteristics of simple construction, low cost, safety performance and good repair effect.
Repair steps:
(1) Surface treatment: thoroughly remove the oxide layer on the surface of water ring vacuum pump, and clean the surface with acetone.
(2) Harmonizing material: Harmonize strictly according to the proportion, and mix evenly until there is no color difference.
(3) Daubing material: first, apply a thin layer of material, to ensure that the bonding and full coverage, and then evenly apply the material to the repair surface, to meet the required repair thickness can be.
(4) Curing: 24 hours/24 C (material temperature). The curing time can be reduced by half for every 11 C increase in material temperature, but the increase temperature should not exceed the material's withstanding temperature.
(5) Installation and precautions: Installation according to assembly requirements of water ring vacuum pump. Repair and protection materials should avoid being knocked or impacted by external forces. If materials affect assembly, grinding method can be used to deal with them. Never knock, avoid damaging other materials.
Above, the method of repairing corrosion of water ring vacuum pump is introduced. In the future, we can refer to the above methods for repair. If you want to know more, you can continue to pay attention to us.
