Abstract: The invention relates to an electrode arrangement having a variable geometry which can be adapted to a component which is to be treated. The treatment of the component can be an electrochemical coating or a removal of said electrochemical coating. According to the invention, said electrode arrangement comprises rod-shaped electrodes which are mounted in an axially displaceable manner in the base bode. As a result, they can be adapted to the profile of the surface, and the base body comprises a cavity which is filled with hard wax. Said cavity enables the rod-shaped electrodes to be axially displaced when the hard wax is liquefied and the rod-shaped electrodes to be fixed after the hard wax has solidified. Said electrode arrangement can be used in an advantageous manner in order to carry out the electrochemical treatment having a homogenous current density distribution on the surface.

Abstract: Operationally-stressed components are often returned to use by means of an acid treatment. The duration during which the component remains in the acid is conventionally fixed at a standard value, such that individual stresses are not taken into account.

Abstract: Components which are subject to operating loads can often be passed for refurbishment by means of an acid treatment. The time for which the components remain in the acid has hitherto been determined empirically, which means that individual loads are not taken into account. The process according to the invention for the surface treatment of a component proposes that at least repeatedly a measurement voltage be applied to the component, resulting in the flow of a current, the time profile of which represents the state of the surface treatment and is used to decide upon when to terminate or interrupt the acid treatment.

Abstract: Cosmetic face tonics comprising