Method for electrochemically roughening a surface of a metal plate
AssigneeFuji Photo Film Co., Ltd.
InventorsSeiji Kawasumi, Akio Uesugi
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Abstract
An apparatus and method for subjecting a material, such as an aluminum web, to an electrolytic roughening treatment. The apparatus includes a tank for storing an electrolytic solution, and for conveying the web through the solution. As the web is conveyed through the solution, it passes first and second electrodes, which are coupled to a power source circuit. The power source circuit generates an alternating current and applies the same to the electrodes. The circuit also includes a rectifying coil having an inductance (L.sub.1), which is at least ten times greater than the inductance (L.sub.2) of the load.
Claims5
A method for electrochemically roughening a surface of metal plate comprising the steps of:
- providing the metal plate;
- contacting said plate with an electrolytic solution;
- applying to said plate through adjacent electrodes and said solution an alternating current generated by a power source circuit containing a rectifying coil having an inductance at least ten times greater than an inductance of a load on said power source circuit.
Dependencies are inferred from the claim text.