The chemical polishing of large  medium-sized stainless steel flanges is to make the flange surface bright  smooth according to standard dissolution. In the whole process of chemical polishing, the passivation treatment air oxide film  the air oxide film continue to dissolve on the surface of large  medium-sized stainless steel flanges,  the former is stronger than the latter. Because of the inconsistency of the external economy on the surface of large  medium-sized stainless steel flanges, the economic protruding parts on the surface are preferentially dissolved,  the dissolution rate exceeds the dissolution rate of the recessed parts;  the dissolution of the film  the production of the film are carried out separately  beginning to end, only the rate is different As a result, the surface roughness of the large  medium-sized stainless steel flanges of steel is smoothed,  a smooth  bright surface is obtained. Grinding  polishing can fill the surface skin pores, scratches  other surface defects, thereby increasing fatigue friction resistance  erosion friction resistance.

Flange, also called flange boss plate  flange. Flange is a part that connects between shaft  shaft, which is used for the connection between the ends of the pipe; it is also effective in the import  export trade of machinery  equipment,  is used for the connection between two machinery  equipment, such as the reducer flange. Flange connection  flange connection head refers to a detachable connection that is connected by flange, gasket  anchor bolt as a set of sealing structure. Pipeline flange refers to the flange used in pipeline equipment,  when used on machinery equipment refers to the import  export trade flange of machinery equipment. There are holes on the flanges,  anchor bolts make the two flanges tightly connected.