Centerless chrome plating
Continuous chrome plating is the galvanic coating of an metallic workpiece with a hard chrome coated surface.
Technology - Chrome plating
Chrome plating: In an electro chemical process, cylindrical workpieces are galvanically coated with a chrome layer.
The bar passes a process tank in a spiral movement. The bar motion is horizontal in a centerless movement. The chromium layer on the rod is growing precise over the entire circumference and length due to this process.
The uniform rotation and translational movement of the workpieces through the system produces a very homogeneous chromium layer.
The achieved accuracy of the coating reduces the post-processing and increases the quality.
Applications
The thickness of the chrome layer applied to the workpiece is very homogeneous and, depending on the application, is between 10 and 50 μm.
Materials
Steel, Stainless steel, Metals with diameters of 16 - 200 mm.
Characteristics
The process described above reduces the required amount of chromic acid to about 40% compared to conventional systems in which the workpieces are completely immersed in a chrome bath. Thus, there is no excessive edge build-up at the ends of the workpieces. The requirements for the extraction systems are minimized, which leads to considerable cost savings. Due to this advantage, the systems are very energy efficient.
