Workpiece hung too close between will be covered and partial areas of the workpiece will thus may not plate normal coating, or only plating coating on an extremely thin, the situation of chrome plating difficulty bigger, the plating but not allowed to mount too close, otherwise it will affect the larger.

Another unfavorable factor is that the deposition of the coating is not easy to distribute, the temperature of the bath will rise rapidly, and the quality of the coating will be seriously deteriorated. This phenomenon is very easy to be reflected in the process of anodic oxidation of chromium plating or aluminum. For example: chromium plating solution temperature exceeds the process specification 2 degrees Celsius, in normal temperature conditions should be able to plating chromium plating on the part of the chromium layer.

Aluminum anodizing solution temperature exceed the process specification 2 DEG C, could have normal film, this time can only obtain glaucescent film.