Tag Archives: Passivation

What’s the Difference Between Electropolishing or Passivation

You don't have to be a metallurgist to know the value of preserving metal parts from corrosion and installed contaminants like free iron. With all of the various processes for cleaning and treating metal parts, though, the complex (and not-so-subtle) variations between them can get confused. Industry outsiders and experts alike are always questioning about the contrasts between two of the most common treatment options:

Chemical passivation and electropolishing. While both passivate metal parts, these methods are fundamentally opposed both in performance and in overall outcomes. For more information about the difference between the electropolishing and passivation, you can also visit http://ultracleanep.com/.

The Passivation Process

To know the differences between these two industry types, we have to start by watching at the fundamentals of each method. Passivation is a strictly chemical process applied on stainless steel parts by immersing a stainless part in a chemical solvent for a planned time and at a specific temperature, you can eliminate foreign contaminants from its cover.

Without those contaminants, the part helps from improved corrosion resistance (though the duration of that corrosion resistance may be minimal, depending on the class of steel and the state it was in). If you want to know more information about passivation and electropolishing you can also visit ultracleanep.com/electrochemical-passivation/.

Passivation is also typically a two-step process at limited, it is if you need the best results likely. To eliminate as many contaminants as probable, you may require adding a pre-cleaning process like alkaline cleaning before really passivating the part think of it like absorbing your dinner plates since running them through the dishwasher. Without this action, the actual passivation may not make enough of an influence at all.

The Electropolishing Process

Electropolishing is comparable to passivation, but a more proactive treatment and one that eventually creates longer-lasting results.

This process involves immersing metal parts in a chemical bath and filling them with electric current a compound that removes away a tested layer of material from the whole surface of a part. Think of this method more like shaving the bark from a tree it reduces the rough, damaged surface and any contaminants embedded extremely the cutoff point, leaving a smooth, smooth surface.

Weighing the Pros and Cons

Testing consistently proves that electropolishing enhances corrosion resistance more completely than passivation. Not only this, but it produces numerous other advantages and gives engineers more opportunities for completing their parts it can be used to resize complex parts, improve surface, reduce heat tint and oxide scale, deburr parts and also.