In order to exceed our customers’ ever-increasing expectations and requirements, we decided to offer the black oxide treatment service: a surface treatment that has the power to advantageously modify the properties of metal parts.
What is black oxidation?
Sometimes referred to as chemical burnishing, blackening or “black oxide”, black oxidation is a chemical treatment that leads to the formation of a black iron oxide on the surface of metal parts subjected to it.
This treatment is mainly applied to ferrous materials, low alloy steel, copper and copper-based alloys.
Generally speaking, it is carried out in several stages, which may vary slightly :
- Cleaning;
- Rinsing
- Surface conditioning;
- Second rinse;
- Blackening;
- Third rinse;
- Sealing.
The positive effects of black oxidation
The popularity of the “black oxide” treatment for metal parts is due in part to its various effects:
- It gives parts a pleasing appearance, covering them in a deep black that can have a glossy or matte finish;
- It increases corrosion resistance, especially when the black oxide is subsequently impregnated with oil or wax;
- In some cases, the treatment will contribute to better lubrication of the part.
Do you have parts to treat with Black Oxide?
The benefits of black oxide coating
Black oxidation treatment offers a number of advantages over other coating processes:
- Its build-up is minimal, meaning that it does not alter the dimensions of the parts treated;
- It has no effect on the hardness level of the parts;
- Treated parts can be welded without fear of generating noxious fumes;
- It can improve electrical conductivity.
A few examples of applications
Here are a few examples of components for which a black oxide coating is often beneficial:
- Machined or mechanically welded parts;
- Hydraulic parts;
- Gears;
- Springs;
- Hand tools;
- Screws, bolts, nuts, etc.
Omnifab: for the best “black oxide” service
In conclusion, the “black oxide” treatment not only has an aesthetic impact, it also has the potential to improve the durability of parts. So don’t hesitate to ask us to submit your custom-made parts.
Just contact our team to find out more about our fast service!
