Patent DE-102009023765-A1 (DE)
Title: Method for chemical and electrolytic treatment of good such as printed circuit boards and conductor film with fluid jets in continuous treatment plant or band system, comprises guiding the fluid jet on the surface of the goods
Inventor: HUEBEL EGON
IPC: H05K3/00
Filed: 2009-05-22
Abstract: The method for chemical and electrolytic treatment of good (1) such as printed circuit boards and conductor film with fluid jets (13) in continuous treatment plant or band system, comprises rotatably arranging the continuous treatment plant or band system with transport- and/or contact means (2) on shafts for horizontal or vertical transport of the goods and guiding the fluid jet by the transport- and/or contact means on the surface of the goods to be treated. The fluid jet emerging from fluid guiding tube strikes on a wheel wall (7) of the transport- and/or contact means. The method for chemical and electrolytic treatment of good (1) such as printed circuit boards and conductor film with fluid jets (13) in continuous treatment plant or band system, comprises rotatably arranging the continuous treatment plant or band system with transport- and/or contact means (2) on shafts for horizontal or vertical transport of the goods and guiding the fluid jet by the transport- and/or contact means on the surface of the goods to be treated. The fluid jet emerging from fluid guiding tube strikes on a wheel wall (7) of the transport- and/or contact means approximately in the middle of the wheel half and flows along the wheel wall in the direction to the surface of the goods. The fluid emerging from a hollow shaft flows in the pressure area that is formed from the wheel wall of the transport- and/or contact means and a cover (18), in the direction to the surface of the goods. A deflection curve in the area of the rim of the rotating transport- and/or contact means redirects the fluid jet provided on its wheel wall or in the pressure area in the direction to the surface of the goods so that the surface of the good is flowed against in a predetermined angle with fluid. The intensity of the treatment of the goods with fluid is adapted through the volume stream and through the speed of the fluid jet to the requirement of the process. Same or alternating different profile angles of the deflecting curve are used at the circumference of the wheel or a roller so that the fluid strikes with same or different angles on the surface of the goods. Turbulence for increasing the fluid dynamic effect of the fluid in the vicinity of the goods is produced through different profile angles of the deflecting curve on the transport- and/or contact means and/or on adjoining wheel of wheel shaft. A laterally arranged cover with the wheel wall forms a closed fluid flow channel or pressure area at the wheel. The closed fluid flow channel or pressure area guides in possible turbulences of the fluid present in the processing container in the area of the wheel on the surface of the goods. The adhesion of the film on the running area of the wheel is prevented through radial holes or slits in the rims through which a part of the fluid jet flows. The surface of the goods is uniformly treated through the wheels that are arranged among one another on the wheel shaft or hollow shaft in axially staggered manner. The regenerated electrolyte is directed by the wheels and/or rollers through the section of the electrode in electrolytic cells in electrolytic plant. The fluid jet flows nearly at the surface of the goods into the electrolytic cells and discharges through the electrodes from the electrolytic cells so that the material emerging at the electrode is held by the surface of the goods. The goods such as film is transported in the process container of the treatment plant through a guidance by the wheels at the position, on which the intensive fluid stream influences on the good. An independent claim is included for a device for chemical and electrolytic treatment of printed circuit boards and conductor foil with fluid jets.