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BLACKING OF STEEL WITH A CHEMICAL BLACKING SOLUTION | ||
V.Ryan © 2018 | ||
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When manufacturing components from steel, corrosion to the surface will always be a problem, especially if the product / component is in contact with moisture, as carried in the atmosphere. To prevent this happening the surface can be ‘blacked’, through the use of a chemical blacking kit, without the need to heat the steel to ‘red’ heat. The finished surface will prevent tarnishing / corrosion to the surface of steel and produce an attractive black finish. The process is called Cold Chemical Blacking. | ||
1. Prepare the surface of the component, through the use of hand tools, such as files and the use of wet and dry paper / emery cloth. OR prepare the surface with a machined finish, through the use of a lathe, miller, surface grinder etc.... | ||
2. Ensure that all surfaces are clean of dirt and grease. Wipe the component clean and soak it in a de-greasing solution. Then rinse in clean water and dry. | ||
3. Using tongs and wearing protective clothing, drop the component into a container of blacking solution and leave it for up to five minutes. Good ventilation is important and even extraction.
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The resulting finish, will be dark satin and will be corrosion resistant. | ||
SAMPLE CHEMICALLY BLACKED COMPONENTS | ||
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