Advantages of K-2 Pickling over Grinding and Polishing
Grinding is a mechanical action that tends to push the surface iron into the metal thereby contaminating the metal surface. This ultimately leads to rusting & corrosion; therefore K-2 Pickling & Passivation is a must after every action. K-2 Pickling removes all the free iron from the metal surface & passivation helps in regenerating the chromium oxide layer that protects the surface from further corrosion.
Polishing action leaves behind tiny invisible black polishing particles or compounds on the metal surface which contaminates the metal surface & the presence of such particles on the surface make way for rusting & corrosion. Therefore it is necessary to carry out K-2 Passivation after every finishing & polishing action so as to have a clean, Passivated, and corrosion resistant metallic surface.
K-2 Pickling & Passivation
K-2 chemicals not only removes the oxide scales, rust particles, annealing
|ADVANTAGES OF K-2 OVER CONVENTIONAL PICKLING & PASSSIVATION|
|Metal removal can be controlled||Removal of metal cannot be controlled
|Welding scales are easily removed||Welding scales are not easily removed
|Surface finish improves||Surface finish gets deteriorated
|Fuming is negligible||Heavy fuming takes place
|Pinholes can be detected||Pinholes cannot be detected
|A uniform smooth & satin finish is|
achieved on the surface
|A non uniform, patchy, rough discolored surface is
|Stops corrosion & restores full corrosion resistance to the treated surface||Does not stop or prevent corrosion & deteriorates the surface|