Process of chrome plating
Here we prepared for you a visual description of individual steps during the renovation of chromic parts and their chromium plating. If you click on indents, you will see photos and videos. You can see videos in our video-archive as well.
Chrome plating is the way of galvanic coating of which anode is a hard lead with minimum content of antimony (6 %; chrome is in electrolyte an anion). Chromic acid with the addition of vitriol acid, hydrofluoric, silicofluoric or acetic acid is an electrolyte.
By the galvanic chromium plating a very dense and hard adhesive protective cover is originated. Chrome resists atmospheric influences, water, acids (not salt acid and warm vitriol acid), lye, ammonia, hydrosulphide, combustion gas. It is used as a protection against corrosion. Chrome does not lose its gloss as nickel or silver, because of chromium plating it is most equable decorative galvanized.
Highly shiny chrome reflects 65% of light beams.
The work’s process of chroming:
(After you click on the indent, the detail description of the process of the renovation of chromic parts and chrome plating will unroll).
A visual control and classification
After we assume the chromic parts which require renovation, first we do a visual control, if a number of parts concurs with expectation and then we divide them into groups.
Archiving and photography
We take a picture of each part and we archive it, so we avoid the loss of any part.
Cleaning it from any glue and silicone
Before the process of chrome plating starts, it is needed to precisely clean the parts from glue and silicones as parts covered with glue or silicone cannot be chromed.
Chromium-plating
Abrasive cleaning
Pulling the part or finishing the oxidized element of the part
After the abrasive cleaning we examine the state of the part. If the part is noticeably oxidized and wrenched, we do its pulping and straightening as well.
Abrasion
Chemical cleaning
Before the basic nickel coating is done, the part is cleaned by means of a chemical appliance.
Applying a mat nickel coating
Cooper coating
After applying the basic nickel coating, we apply a cooper layer, which has a depth of 250 μm.
Abrasion
After a cooper coating, it is needed to abrade.
Polishing
It is done by various appliances and disk polishers, which we alternate from heavy to smallest. By them we rich a high gloss of chromic part.
When the oxidation was strong, we do a cooper coating, again
When the oxidation was strong, we do a cooper coating, again. We apply add cooper layer again, which has a depth of 250 μm.
Abrasion and polishing again
Nickel coating
After these procedures, we proceed with nickel coating with a depth of 15 μm.
Applying a polishing nickel
Before the chrome plating is done, a polishing nickel surface is applied with a depth between 50 and 100 μm.
Chrome plating
During the chrome plating a layer of a depth of 3 -5 μm is applied
Controlling and polishing
After the chrome plating, the parts are precisely controlled and polished up to mirror finish.
Packing, classification and expedition
The chromic parts are packed with care to avoid any damage and are ready for an expedition.
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