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The electroplating process consists of two main steps: (i) the mass transport of chromium ions through the electrolyte to the surface of the electrode, and (ii) the reduction of chromium ions at the cathode through chemical reactions. c The fundamental equations needed to model the system are: 2.1 Conservation Balances n
Chrome plating is used to provide a very high degree of hardness on the surface of a metal to enhance wear resistance, reduce friction, provide anti-galling properties, and, in some cases, improve corrosion resistance. Chrome plating is an electrolytic process that can be applied to regular steel, stainless steel, aluminum, and other materials.
Analytical Methods: Hexavalent Chromium Plating Solutions. Mary C. Traficante, Atotech USA Inc., Rock Hill, SC. This is a brief review of accepted analytical methods for chromium plating solutions. The relative standard deviation (RSD) of certain methodologies is presented.
Chromium electroplating requires constant control of the plating bath temperature, current density, plating time, and bath composition. Hexavalent chromium plating baths are the most widely used baths to deposit chromium on metal. Hexavalent chromium baths are composed of chromic acid, sulfuric acid, and water.
Producing high quality chrome plated parts takes diligent attention to detail. Many of the rejects generated with both hexavalent and trivalent chrome processes can be attributed to contamination introduced into the plating tank. We will show you well proven methods to lower reject and rework rates significantly by utilizing filtration
3.1 Influence of bathparameters on the deposition conditions. the plating range of bright and hard chromium deposits depends on the current density and temperature. outside this plating range the chromium deposit is grey, dull and brittle or milky dull and soft.
Electroplating is a chemical or electrochemical process of surface treatment. A metallic layer is deposited on the base material. Common plating metals include: cadmium, chromium, copper, gold, nickel, silver and their alloys. This information bulletin focuses on chrome plating.
