Pickling and passivation inside stainless steel heat exchangers
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RT! How is pickling and passivation carried out inside stainless steel heat exchangers? Let’s discuss it together
Stainless steel doesn’t undergo a chemical reaction with acid washing, right? Is passivation needed? It simply uses an acid to undergo a chemical reaction with the non-metallic scale layer, causing it to liquefy and fall off thereby achieving cleaning. It can be said that soaking in a passivating alkali solution will do.
First, pickling, then pre-coating passivation.
For small bubbles, use the passivation paste by yourself for larger ones.
This should be done by the manufacturer before the product leaves the factory, right? Once it arrives at the user’s location, a professional chemical cleaning company needs to be hired to carry out the cleaning
Pickling, washing, passivation, drying, displacement.