Applying
specialized and attractive finishes to the metal products which are already
manufactured is not a new process for our generation. Manufactures and
industrialist have been doing so for decades now by using various kinds of
finishing processes to the metal products. But have you ever wondered why? It
enhances the resistance of the metals against corrosion and much more.
However,
with the passing time, these processes of applying sheet metal finishes evolve to
help the manufacturers use it more efficiently and flawlessly. So, there are
various types of metal sheet finishes that are applied to metal products to
protect them from the environmental factor and much more.
Various Types
of Metal Sheet Finishes
Here we have made a list of the standard mechanical sheet metal finishes with some brief notes which will help you understand everything about it easily-
1.
Passivated Finishes-
The process of removing the contaminants of iron and sulfuric
acid on the surface of some kinds of metal alloys by a liquid bath of citric
and/or nitric chemical is called as passivated finishes. This process of
stripping away the contaminants gives a uniform layer on the exterior of the
stainless steel of protective oxide film. This is a very effective way to
improve the inherent corrosion resistance of metal products.
The
first stage of preparing stainless steel for coating it with other products is
usually passivated finishes.
2.
Electropolishing-
Just like passivation, this process also uses a similar kind of
method for achieving nearly the same results. It also helps in enhancing the
protective oxide layer of stainless steel materials.
In
this kind of finishes, the material is dipped in a chemical bath, similar to
what is done in the process of passivation techniques. The significant
difference amongst both of them is that in this process, the chemical bath is
linked with a DC power supply, which is effective for dissolving the exposed
layer of metal. The result of electropolishing is a microscopically clean
surface with enhanced chromium/nickel content.
3.
Electroplate Finishes-
This process usually is all about a solution of metal ions through
which metal materials are passed in which the bonds between the metal ions and the
metal surface is charged with the help of electricity. These kinds of finishes
can alter the mechanical properties of the sheet metal depending on the metal
used and type of coating used.
4. Electroless Plating Finishes-
Just like electroplating; this process of
finishes also adds a very thin layer of material on the outer surface of the
material. However, the primary difference is that a chemical reaction is used
to bond the two materials rather than the use of electric current.
5. Case
Hardening-
This is a very common technique used in the manufacturing of products with
steel, dating back hundreds of years. We all must have seen it somewhere as in
this process; metal is heated, shaped, and then quickly cooled. This helps in
enhancing the surface hardness while leaving the core pliable.
Most
of the above-mentioned metal sheet finishes can be used to produce different
results in different kinds of materials. Therefore, it is essential to review
with someone who is experienced and have knowledge about these processes such
as a mechanical engineer, before selecting any of the processes for your sheet
metal finishing.
So,
what are you waiting for? Get your sheet metal finishes done from the best
professionals now!
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