Hur man skyddar värmningsröret i rostfritt stål

The corrosion resistance of stainless steel heating tubes is not certain, but relative and conditional. At present, there is no steel type that does not rust in any environment, either domestically or abroad. Stainless steel electric heating tubes are also difficult to be used in any environment, so there is a high possibility of rust.

Den långsiktiga förekomsten av rost påverkar inte bara utseendet, utan minskar också livslängden på grund av ytkorrosionen av rostfritt stålrör . rost på ytan av rostfritt stålrör bör behandlas i tid . idag kommer vi att prata om hur man ska hantera Rust på värmebanor?

Kemisk metod:

Use spray or pickling paste to assist the rusted parts to passivate again to form a chromium oxide film to restore its corrosion resistance{{0}} Apply the pickling paste to the surface to be treated, the coating thickness is 0.5-2mm, and the reaction time is usually more than 3-10 minutes. When it is below 0℃or the oxide scale is thick, the time needs to be appropriately extended. It is best to brush it several times during the treatment process. After the surface oxide scale is completely removed, rinse it with clean water (lime water or alkaline water is better) to avoid rust. After pickling, it is very important to rinse it properly with clean water to remove all pollutants and Syrarester . När alla behandlingar, polering med poleringsutrustning och tätning med poleringsvax . För lokala små rostfläckar kan du också använda en 1: 1 bensin och motoroljeblandning med en ren trasa för att torka av rostfläckarna .}

Mekanisk metod:

Sandblasting, shot blasting with glass or ceramic particles, annihilation, brushing and polishing. Mechanical methods may wipe off the pollution caused by previously removed materials, polishing materials or annihilation materials. All kinds of pollution, especially foreign iron particles, are likely to become a source of corrosion, especially in humid environments.

Therefore, the mechanically cleaned surface should be cleaned regularly under dry conditions as much as possible. The use of mechanical methods can only clean the surface, and cannot change the corrosion resistance of the material itself. Therefore, it is recommended to re-polish with polishing equipment after mechanical cleaning and seal with polishing wax.