Wind generating set flange and wear-resistant coating technology of flange

Abstract

The invention discloses a wind generating set flange, which includes a flange body, wherein water inorganic zinc rich paint is sprayed on the surface of the flange body to form a wear-resistant protective coating after solidification, and the surface of the flange body requires sand blasting before spraying the water inorganic zinc rich paint. The invention aims to provide the wind generating set flange taking the water inorganic zinc rich paint as the wear-resistant coating and the wear-resistant coating technology of the flange, and the water inorganic zinc rich paint sprayed on the surface of the flange body not only can satisfy the requirement for the twenty-year anticorrosion service life of the wind generating set flange, but also can satisfy the technical performance requirements for the wear resistance and the engaging force of the mutually-connected flange surfaces.

Description

【Technical field】 [0001] The invention relates to the field of metal anticorrosion protection, in particular to a flange of a wind power generating set and a wear-resistant and anti-corrosion wear-resistant coating process for the flange. 【Background technique】 [0002] In the assembly process of metal parts of wind turbines, high-strength bolts and flanges are usually used to assemble and connect the parts. However, the flange contact surfaces of wind power parts connected by high-strength bolts require a certain friction coefficient to Increase the meshing force of the mutual contact surfaces of the flanges, so as to ensure the tight connection and assembly technology of the wind turbine components, and also ensure the structural fit of the components. Therefore, a technology is needed to improve the wear resistance of the flange contact surfaces of wind power components and methods. [0003] Usually, the measures to improve the wear resistance of the flange surface of st...

AI Technical Summary

Problems solved by technology

Considering the harsh environmental conditions of the wind turbine and the requirement to ensure the anti-corrosion protection life of 20 years, it is only directly connected after shot peening (sand) on the flange surface. Although the contact surface of the flange has a certain roughness, its surface is corroded. The protection problem has not been fundamentally solved, therefore, the first method is not feasible to only shot peen (sand) on the flange surface; the second method is to spray zinc (aluminum) on the flange surface. , and it is easily restricted by factors such as the shape of the flange surface of the part, the coating equipment and the proficiency of the operator. Due to the large surface porosity of the zinc spray layer, the corrosive medium is easy to penetrate into the connected flange surface and cause corrosion. Obviously The above two methods of improving the wear resistance of the flange surface are not advisable

Due to the practical operability and selectivity of these two methods are not strong, there are certain limitations

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