11.02.2005
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New solutions for selective chrome plating |
Requirements for selective chrome plating are continuously on the rise as a result of ever increasing use of chrome plated plastic parts in a wide variety of industries and applications.
Selective plating makes it possible to keep precisely defined areas of the plastic part absolutely free of metal, whereas the rest is plated with a layer of chrome.
Above all, this is highly advantageous where the functional aspects of the part are concerned. For example, good mobility is assured for rotary switches installed in various devices, and individual elements such locating lugs remain resilient and flexible. Where parts come into contact with electronic components, the metal-free surface eliminates the possibility of electrical conductivity which could lead to short-circuiting. Joining surfaces of the type used in enclosures for electronic controls can be joined better and more reliably thanks to the metal-free surface areas. Selective plating also makes it possible to fuse nubs by means of ultrasonic welding.
Various options are available for selective chrome plating. In addition to 2-component injection molding and appropriately masking the respective parts, a process is now being used which allows for selective chrome plating with the help of a selective resist lacquer.
In addition to the above mentioned benefits this provides a cost advantage as well, because no expensive tools are necessary, such as those required for 2-component injection molding, and labor-intensive masking is avoided.
Schaal Oberflächen & Systeme GmbH & Co. KG offers this type of selective electroplating involving the application of a resist lacquer – supplying everything from a single source. Selective resist lacquer is applied by means of fully automated dispensing equipment, and the parts are subsequently chrome plated using an in-house, automatic electroplating system. |
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