A kind of electrochemical treatment liquid and its application

Abstract

The invention belongs to the field of chemical electroplating, and particularly relates to electrochemical treatment liquid and an application thereof, in particular to the electrochemical treatment liquid for processing a workpiece after laser engraving. The electrochemical treatment liquid of the present invention comprises the following components in parts by weight: 270-640 parts of sulfuric acid, 940-1300 parts of phosphoric acid, 4-10 parts of 5-phenyltetrazole, 2-10 parts of a brightener, and 4-12 parts of glycine. When the laser-engraved workpiece is treated with the electrochemical treatment liquid of the present invention, an oxide layer formed on the workpiece can be removed, and re-oxidation of the workpiece is not generated; when the laser-engraved workpiece is treated by theelectrochemical treatment liquid of the invention, the workpiece body is not affected, and the pattern structure of the workpiece is not deformed; when the laser-engraved workpiece is treated with theelectrochemical treatment liquid of the present invention, the brightness of the surface of the workpiece can be increased, and thereby the requirement of subsequent processes is satisfied.

Description

technical field [0001] The invention belongs to the field of chemical electroplating, and in particular relates to an electrochemical treatment liquid and application thereof, in particular to an electrochemical treatment liquid for electrochemically treating laser engraved workpieces. Background technique [0002] Laser engraving is a processing technology with laser as the processing medium. The physical denaturation of the instantaneous melting and gasification of the processing material under laser irradiation can make laser engraving achieve the purpose of processing. Laser processing is characterized by no contact with the material surface and is not affected by mechanical movement. [0003] In the electroplating industry, laser engraving is the high temperature generated by laser to burn the copper layer and white oil on the surface of the workpiece. Laser engraving will form a thick oxide layer on the copper surface. When using ordinary phosphoric acid treatment liq...

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Problems solved by technology

The existing electrochemical treatment liquid is mainly composed of phosphoric acid, glycerin, thiourea, etc. The workpiece after treatment has the following disadvantages: (1) After the workpiece is treated at high current and for a long time, the surface temperature of the workpiece rises sharply, and the surface of the workpiece oxidizes rapidly , which is not conducive to observing the change of dot shape; (2) After electrochemical treatment, a thick white film (additive decomposition residue) is formed on the surface of the workpiece, which is not conducive to reprocessing in subsequent processes; (3) The workpiece is easy to corrode after long-term treatment ; (4) After removing the oxide layer at the bottom of the dot, the top of the dot is seriously deformed

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