| abstract |
The present invention relates to the application of a layer of a compound, preferably a polyhydroxy compound, which can be oxidized by the electrolyte solution used and has a viscosity of at least 1000 mPas at 25 캜, to the body prior to electrochemical application of the surface coating To a method for electrochemically applying a surface coating, in particular a chromium coating, to a body, such as a mechanical part. The invention also relates to a method for electrochemically applying a surface coating, in particular a chromium coating, to a body, for example a mechanical part, in which the surface coating is carried out in a closed reactor in at least two stages, preferably three stages, The method is characterized in that the electrolyte solution contained in the reactor at a temperature (T1) is replaced with an electrolyte solution at a temperature (T2? T1) to carry out subsequent processing steps. The invention also relates to an apparatus for carrying out the method. |