Patents Assigned to TOPOCROM SYSTEMS AG
  • Patent number: 11732373
    Abstract: A method for galvanic application of a surface coating, in particular a chromium coating, to a body, for example a machine component. Before the galvanic application of the surface coating, a layer of a compound that can be oxidized by an electrolyte solution that is used, preferably a polyhydroxy compound with a viscosity of at least 1000 mPas at 25° C., is applied to the body. A method for galvanic application of a surface coating, in particular a chromium coating, to a body, for example a machine component, wherein the surface coating is carried out in a closed reactor in an at least two-stage, preferably three-stage process, is also disclosed. An electrolyte solution contained in the reactor at a temperature T1 for carrying out a subsequent process stage is substituted by an electrolyte solution at a temperature T2?T1. A device for carrying out this method is also disclosed.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: August 22, 2023
    Assignee: TOPOCROM SYSTEMS AG
    Inventors: Karl Müll, Thomas Bolch
  • Patent number: 11136685
    Abstract: A method for galvanic application of a surface coating, in particular a chromium coating, to a body, for example a machine component. Before the galvanic application of the surface coating, a layer of a compound that can be oxidized by an electrolyte solution that is used, preferably a polyhydroxy compound with a viscosity of at least 1000 mPas at 25° C., is applied to the body. A method for galvanic application of a surface coating, in particular a chromium coating, to a body, for example a machine component, wherein the surface coating is carried out in a closed reactor in an at least two-stage, preferably three-stage process, is also disclosed. An electrolyte solution contained in the reactor at a temperature T1 for carrying out a subsequent process stage is substituted by an electrolyte solution at a temperature T2?T1. A device for carrying out this method is also disclosed.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: October 5, 2021
    Assignee: TOPOCROM SYSTEMS AG
    Inventors: Karl Müll, Thomas Bolch