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2. Chromate conversion coating - Wikipedia

   en.wikipedia.org/wiki/Chromate_conversion_coating

   Chromate conversion coating or alodine coating is a type of conversion coating used to passivate steel, aluminium, zinc, cadmium, copper, silver, titanium, magnesium, and tin alloys. [ 1 ] : p.1265 [ 2 ] The coating serves as a corrosion inhibitor , as a primer to improve the adherence of paints and adhesives , [ 2 ] as a decorative finish, or ...

3. Powder coating - Wikipedia

   en.wikipedia.org/wiki/Powder_coating

   Powder coating can also be removed by a burning off process, in which parts are put into a large high-temperature oven with temperatures typically reaching an air temperature of 300–450 °C. The process takes about four hours and requires the parts to be cleaned completely and re-powder coated.

4. Chromium(II) carbide - Wikipedia

   en.wikipedia.org/wiki/Chromium(II)_carbide

   Chromium carbide is used to coat the surface of another metal in a technique known as thermal spraying. Cr 3 C 2 powder is mixed with solid nickel-chromium. This mixture is then heated to very high temperatures and sprayed onto the object being coated where it forms a protective layer.

5. Chrome plating - Wikipedia

   en.wikipedia.org/wiki/Chrome_plating

   This results in an extremely acidic bath (pH 0). The temperature and current density in the bath affect the brightness and final coverage. For decorative coating the temperature ranges from 35 to 45 °C (100 to 110 °F), but for hard coating it ranges from 50 to 65 °C (120 to 150 °F).

6. Pyrolytic chromium carbide coating - Wikipedia

   en.wikipedia.org/wiki/Pyrolytic_chromium_carbide...

   Coating mechanical parts can help with problems of corrosion, adhering, high-temperature and mechanical wear thus reducing unplanned repairs and loss of production. The features of PCC coatings are: obtaining protective layers with high adhesion strength on parts and products made of various engineering materials including metal and non-metal ...

7. Passivation (chemistry) - Wikipedia

   en.wikipedia.org/wiki/Passivation_(chemistry)

   The color indicates the temperature the steel reached, which made this one of the earliest practical uses of thin-film interference. Ferrous materials, including steel, may be somewhat protected by promoting oxidation ("rust") and then converting the oxidation to a metalophosphate by using phosphoric acid and add further protection by surface ...