Method and device for producing low-wear hard coatings

A method for producing a low-wear nickel- and boron-containing hard coating on a metal surface, comprising:

• wherein the metal surface to be coated is contacted with a nickel-containing electrolyte in the form of a dispersion bath containing boron or boron compound particles, while applying a deposition voltage, wherein during the coating process the boron or boron compound particles contained in the electrolyte are kept dispersed by way of a gas flowing through the electrolyte and are prevented from settling, wherein the method is carried out in a container in which the gas flows from the container floor through the electrolyte to the electrolyte surface, wherein the container floor is at least partially liquid impermeable but gas permeable and wherein the gas flows through the liquid impermeable but gas permeable area of the container floor to the electrolyte.