20140360881 | ELECTRO-MARK PROCESS AND DECORATION OF METALLIC SURFACE AND RELATIVE DEVICE - A process of chemical electro-marking includes the operation of placing the metal surface to be decorated in a position of application in which there is a silk screen, an electrode with a suitable pad soaked with etching solution, interposed between the electrode and the metal surface to be treated with the decoration, drawing or writing; and includes a phase of preliminary application of the negative shape of the decoration, drawing or writing by means of a chemical product of protection of the metal surface being treated, on the metal surface itself and resistant to the action of electrochemical etching of the marking; the action of decoration by chemical electro-marking is performed by applying the silk screen which has no masking and is resistant to the etching action of the chemical solution used, for the specific metal of the treated surface; the motion of the electrode with said pad, driven to slide on the surface of the silk screen, as known in the art, therefore, does not act mechanically on the masking damaging it, but only due to the electrochemical action of marking in the zone momentarily affected by the electrode and not protected by said masking. | 12-11-2014 |
20150014173 | MACHINE FOR THE ELECTRO-MARKING OF LARGE METALLIC SURFACES AND RELATIVE PROCESS - A machine for the electrochemical marking treatment of metallic surfaces, includes an electrode placed in sliding movement on the metallic surface to be treated, a buffer impregnated with etching solution for the specific metal in treatment, and an electric current circuit, suitable for electro-marking treatment of said metal, with a conductor connected to the electrode and the other conductor connected to the metallic surface in treatment; and presents to treat large metallic surfaces on plates, metal canvas or on metallic sheet in coil. The plate, canvas or the metallic sheet is placed in a electro-marking mechanism in a reciprocally movable way with respect to the electrode, in such a way to allow the electrode the electrochemical marking action on the surface to be treated even if the electrode is of limited size with respect to said surface, the electrode being movable in the and/or with the electro-marking mechanism, the buffer being impregnated with the etching solution at regular intervals, and the relative motion of the electrode on the surface being the combination of two longitudinal and transverse relative motions. | 01-15-2015 |