Stainless steel size head has rust spot how to do

A material in a stainless steel size head that forms an extremely thin and strong fine stable chromium-rich oxide film (protective film) on the surface to prevent the continued penetration of oxygen atoms, further oxidation, and gain resistance to corrosion.

Once, for some reason, the film is constantly damaged, oxygen atoms in the air or liquid will continue to penetrate or iron atoms in the metal continue to decompose, forming loose iron oxide, the metal surface is constantly corroded

The large stainless steel factory with good refining level and advanced equipment can ensure the removal of residue and the control of steel cooling temperature regardless of the control of alloy materials, so the product quality is stable and reliable, the internal quality is good, and it is not easy to rust.

On the contrary, some small steel mills outdated equipment, process, refining links, residue can not be removed, the production of goods inevitably rust refining level is good, advanced equipment of large stainless steel factory regardless of the alloy material control, removal of residue, steel cooling temperature control can be ensured, so the product quality is stable and reliable, good internal quality, not easy to rust.

On the contrary, some small steel mills are outdated equipment and technology. In the process of refining, the residue can not be removed, and the products produced are inevitable to rust

304 stainless steel, if the regional environment is very bad will rust, and then the air is humid, often rain temperature, or air containing pH environment is easy to rust. If stainless steel size head occurs rust how to solve? Let's take a look

Stainless steel pipe fittings rust treatment method

With pickling cream or spray to assist its rusty parts, reoxidation to produce chromium oxide film to repair the corrosion resistance level again, after pickling, in order to remove all pollution and acid residues, with tap water to carry out proper cleaning is particularly key.

After all the solution with polishing equipment polishing again, with polishing wax can be closed. On some parts of the slightly rusty can also use 1:1 gasoline, oil mixture with clean towel to wipe off the rust.

Sand blasting, or ceramic shot blasting finishing, polishing. With other methods, it is possible to erase the damage caused by the finished material, polished material or submerged material in the past. All kinds of damage of contaminated materials, especially foreign iron particles, can become the source of rust, especially in the humid environment.

Therefore, mechanical cleaning surface is best should be carried out in dry conditions reliable cleaning. The use of mechanical method can only clean the surface, can not change the corrosion resistance of the material itself. Therefore, it is recommended to use polishing equipment to polish again after mechanical cleaning, and close with polishing wax.