The rust of hot-rolled channel steel will affect the service life of hot-rolled channel steel. Once the rust of hot-rolled channel steel is not treated in time, the corrosion resistance will be reduced. The more severe the rust is, the alkali will be broken and the service life will be reduced. Therefore, once the hot-rolled channel steel is rusted, it should be cleaned in time. The following methods are provided to treat the rust of hot-rolled channel steel, so that the rust of hot-rolled channel steel can be removed thoroughly.
Cleaning hot-rolled channel steel: use solvent and emulsion to clean the steel surface to remove oil, grease, dust, lubricant and similar organic matters, but it can't remove rust, oxide skin, welding flux, etc. on the steel surface, so it is only used as an auxiliary means in anti-corrosion production.
Rust removal of hot-rolled channel steel tools: mainly use steel wire brush and other tools to polish the steel surface, which can remove loose or warped oxide skin, rust, welding slag, etc. The derusting of hand tools can reach SA2 level, and that of power tools can reach SA3 level. If the steel surface adheres to solid oxide scale, the derusting effect of tools is not ideal, and the depth of anchor pattern required by anti-corrosion construction cannot be reached.
Pickling of hot-rolled channel steel: generally, two methods of chemical and electrolytic pickling are used. Chemical pickling is only used for pipeline anticorrosion, which can remove oxide skin, rust and old coating. Sometimes, it can be used as the reprocessing after sand blasting. Although chemical cleaning can make the surface reach a certain degree of cleanliness and roughness, its anchor pattern is shallow and easy to pollute the environment.
Hot rolled channel steel spray (throwing) rust removal: Spray (throwing) rust removal is a high-speed rotation of spray (throwing) blade driven by a high-power motor, so that steel sand, steel shot, wire section, minerals and other abrasives are sprayed (throwing) on the surface of Xinjiang steel pipe under the centrifugal force, which can not only completely remove rust, oxide and dirt, but also the steel pipe under the impact of abrasive and friction force Can achieve the required uniform roughness, so that hot-rolled channel steel will not be easy to grow again
The above is how to solve the rust problem of hot-rolled channel steel. I hope it can help you. If you don't know anything, you can directly communicate with our customer service. We will serve you wholeheartedly and thank you for watching.
