How to deal with rusty spots on stainless steel?
HOW TO DEAL WITH RUSTY SPOTS ON STAINLESS STEEL ?
1. Chemical method
Use pickling paste or spray to assist the rusted parts to re passivate and form chromium oxide film to restore their corrosion resistance. After pickling, it is very important to wash them properly with clean water in order to remove all pollutants and acid residues. After all treatment, use polishing equipment to polish again, and then use polishing wax to seal. For the parts with slight rust spots, the 1:1 mixture of gasoline and engine oil can also be used to wipe the rust spots with a clean cloth.
2. Mechanical method
Blast cleaning, shot blasting with glass or ceramic particles, annihilation, brushing and polishing. It is possible to remove contamination caused by previously removed, polished or annihilated materials by mechanical means. All kinds of pollution, especially foreign iron particles, can be a source of corrosion, especially in humid environments. Therefore, the mechanically cleaned surface should preferably be properly cleaned under dry conditions. The mechanical method 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.
EN 1.4410 seamless pipe , duplex steel pipe
# stainless steel seamless pipe , seamless stainless steel tube
# 347H stainless steel pipe , 904L stainless steel
from chongqing world steel co., ltd
