The Metal Plating and Finishing Industry: Electroplating: An Overview
Chrome plating is known for its bright silver, metallic appearance and is used as a decorative finish for hub caps, door knobs and water faucets. Nickel cadmium and zinc provide a protective finish that is used on building materials like nails and ...
Chemical Treatment Technologies: Oxidation and Reduction: An Overview
While some metals can be readily precipitated, others cannot be until they are reduced. The clarified water resulting from these processes can then be discharged into a municipal wastewater treatment system.
Chemical Treatment Technologies: Precipitation and Toxicity
The electroplating industry uses many chemicals in the process of plating objects like golf clubs and water faucets with metals such as chromium and copper. Before the chemically-laden water used in the electroplating process can be released into s...
The Metal Plating and Finishing Industry: Electroplating: Metal Finishes and Application Processes
Once the part has been cleaned, it is ready to receive the electroplating. One way of plating large quantities of small workpieces at the same time is by barrel plating. In this process, large, plastic barrels are filled with quantities of workpie...
The Metal Plating and Finishing Industry: Electroplating: Waste Treatment and Control
The processes of electroplating, anodizing and galvanizing produce several different wastestreams, including contaminated wastewaters, metallic sludges, and air emissions. In most plating shops, the bulk of the waste comes in the form of wastewater...
The Metal Plating and Finishing Industry: Electroplating: Cleaning and Preparation
Preparation of the metal surface is the first step in the electroplating process. In order for solutions to properly contact the workpiece, that workpiece must be free of any oil or dirt. The choice of cleaning methods varies, depending on the typ...