The pre-treatment of the workpieces
In order to guarantee highest product quality, delivered goods should be metallically clean and free of residues of oils and other materials (polishing greases, welding slag, burnt-in oil, paint, felt pens, adhesive tape, glue residues, silicone, etc.).
Previous material defects such as scratches, cracks, pores, grinding structures and unevenness of steal, may reduce chrome quality and therefore must be avoided. Depending on material defects, chrome layer can get too strong and furthermore reduce final product characteristics. In general, care must be taken during grinding processes to prevent overheating of the workpieces. This can cause problems with chromium plating (no chromium build-up).
In addition, sharp-edged and different heels in the workpieces are not ideal conditions, because the chrome builds up more at these points.
Due to the problem of depth scattering, this increases the different chrome thicknesses (µm) on the workpiece (tolerances).
In order to guarantee a perfect processing of the chrome-plated surface, it would be advantageous to aim for a roughness depth of 2-3µm.
The result
The appearance and quality of the base material are the prerequisites for an optimal chrome plating result. When pricing the materials to be chrome-plated, not only the chromium factor must be taken into account, but also aspects such as: degreasing, frame construction, panels, auxiliary anodes, dehydrating, etc. must be calculated in order to ensure highest quality.
