An electroplating method is disclosed and includes the rotation of a substrate, submerged within an electrolytic solution, under the application of ultrasonic waves, and the ejection of the electrolytic solution containing bubbles in a direction opposite the direction of rotation of the substrate. The electroplating apparatus for electroplating the substrate submerged within the electrolytic solution disposed within an electrolytic cell applies ultrasonic waves to the solution and additionally includes a driving device for rotating the substrate, a bubble generator for entraining bubbles within the electrolytic solution, and an ejector for ejecting the electrolytic solution containing the bubbles generated by means of the bubble generator in a direction which is opposite to the direction of rotation of the substrate.

Electroplating method and apparatus

An apparatus for electroplating and deplating an object out of a plating solution is disclosed. The apparatus includes a plating tank adapted to support the object and to contain a plating solution so that the object is at least partially disposed into the plating solution. The apparatus also includes a non-dissolvable conductor at least partially disposed within the plating solution. A current source is electrically connected to the non-dissolvable conductor and to the object. An ultrasonic system may be provided to introduce wave energy into the plating solution includes at least one transducer element mountable within the tank and a power generator adapted to provide electrical energy to the transducer element. A holding tank having a circulating pump and heating and cooling elements for the plating solution may be provided.

Electroplating apparatus having a non-dissolvable anode

An apparatus for electroplating a rotogravure cylinder out of a plating solution is disclosed. The apparatus includes a plating tank adapted to support the cylinder and to contain a plating solution so that the cylinder is at least partially disposed into the plating solution. The apparatus also includes a non-dissolvable anode at least partially disposed within the plating solution. A current source is electrically connected to the non-dissolvable anode and to the cylinder. An ultrasonic system may be provided to introduce wave energy into the plating solution includes at least one transducer element mountable within the tank and a power generator adapted to provide electrical energy to the transducer element. A holding tank having a circulation pump, a mixing system and heating and cooling elements for the plating solution may be provided.

Electroplating apparatus using a non-dissolvable anode and ultrasonic energy

An apparatus and method for electroplating and deplating a rotogravure cylinder out of a plating solution using ultrasonic energy is disclosed. The apparatus includes a plating tank adapted to rotatably maintain the cylinder and to contain a plating solution so that the cylinder is at least partially disposed into the plating solution. The apparatus also includes a mounting structure mountable within the tank partially on each side of and generally below the cylinder, along with a plurality of conductors at least partially disposed within the plating solution. A current source is electrically connected to the upper portions of the conductors and to the cylinder. An ultrasonic system to introduce wave energy into the plating solution includes at least one transducer element mountable within the tank and a power generator adapted to provide electrical energy to the transducer element. A holding tank having a circulating pump and heating and cooling elements for the plating solution may be provided. A method of preparing a rotogravure cylinder to be used in a printing operation is also disclosed.

Method for electroplating rotogravure cylinder using ultrasonic energy

A tank is utilized for containing a plating solution. A rotatable support assembly rotatably supports a combustion chamber component relative to the tank for providing partial immersion of the combustion chamber component within the plating solution. An anode is positioned within the tank proximate a surface of the combustion chamber component to be electroplated. A current source is connected to the anode and in electrical contact with the combustion chamber component. When the combustion chamber component is rotated, the submerged portions are deposited with metal from the plating solution.

Apparatus and method for electroplating a metallic film on a rocket engine combustion chamber component

IN ELECTROPLATING A CYLINDRICAL OBJECT WHICH SERVES AS CATHODE IN THE PLATING PROCESS AND IS POSITIONED ADJACENT TO AN ANODE IMMERSED IN THE PLATING BATH, THE OBJECT IS MOUNTED IN SUCH MANNER THAT IT IS ONLY PARTIALLY SUBMERSED AND THE BATH IS AGITATED WITH SUFICIENT FORCE THAT THE EXPOSED SURFACE OF THE OBJECT IS MAINTAINED COMPLETELY AWASH WITH THE ELECTROLYTE SOLUTION. DEFECTS IN THE PLATING RESULTING FROM OCCLUSION OF AIR BUBBLES OR SOLID PARTICLES ARE THEREBY MINIMIZED AND A HIGH PLATING RATE IS ATTAINED.

Tucker William M

Papers

Method and apparatus for electroplating cylindrical objects