Derusting method of sanitary valve

    Why does the sanitary valve rust in use? So how to decide when this happens? The following sanitary valve manufacturers will summarize several rust removal methods for sanitary valves.

1. Tool derusting

The steel surface is mainly polished with tools such as steel wire brush, which can remove loose or warped oxide scale, rust, welding slag, etc. The derusting of manual tools can reach grade SA2 and that of power tools can reach grade SA3. If the steel surface is firmly attached with iron oxide scale, the derusting effect of tools is not good

Ideal, it can not meet the anchor grain depth pickling required by anti-corrosion construction

2. Pickling and derusting

Generally, chemical and electrolytic methods are used for pickling treatment. Only chemical pickling is used for pipeline anti-corrosion, which can remove oxide scale, rust and old coating. Sometimes it can be used as reprocessing after sand blasting. Although chemical cleaning can make the surface reach a certain cleanliness and roughness, its anchor

The lines are shallow and easy to pollute the environment.

3. Derusting by spraying (throwing)

Spraying (throwing) derusting is to drive the spraying (throwing) blade to rotate at high speed through a high-power motor, so that steel sand, steel shot, iron wire section, minerals and other abrasives can spray (throw) the surface of steel pipe under the action of centrifugal force, which can not only completely remove rust, oxide and dirt, but also make the steel pipe

Under the action of violent impact and friction force of abrasive, the required uniform roughness can be achieved. After spraying (throwing) derusting, it can not only expand the physical adsorption on the pipe surface, but also enhance the mechanical adhesion between the anti-corrosion coating and the pipe surface. Therefore, spray (throwing) derusting is the key of pipeline

Ideal rust removal method for anti-corrosion. Generally speaking, shot blasting (sand) is mainly used for inner surface treatment of pipes, and shot blasting (sand) is mainly used for outer surface treatment of pipes. Several problems should be paid attention to in derusting by spraying (throwing).

The above are several rust removal methods for sanitary valves, which I hope will be helpful to you.

 For more information about sanitary valves, please visit the company's official website: http://www.wzweiheng.com/