Why stainless steel wire mesh shows black?
In the market, most of our clients request the supplier offer stainless steel wire mesh with bright & shiny finish. Buy why stainless steel wire mesh show black sometimes after weaving?
There are two reasons:
1. Stainless steel wire mesh consists of many different chemical
elements, mainly:Chromium(Cr), Nickel(Ni),
Fer (Fe), some
material have Molybdenum(Mo), etc.
In the same Fe content. if the Cr content is higher than stardard, then it shows black.
In the same condition, if Fe content is higher, it shows black too.
2. It is the result of thermal oxidation of stainless steel wire.
① In wire drawing process, wire drawing machine with poor lubrication which results large friction.
The surface of stainless steel wire wire become heat that caused severe segregation is an internal analysis of the alloy composition, then the stianless steel wire mesh shows black.
② The speed of drawing machine is very high, when drawing wire, also could make the surface of wire ver heat. resulting thermal oxidation of stainless steel wire.
If you have any futher questions about printing mesh, please feel free to contact us.
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