Removing water for metal oxide film or rust and using method of same removing water

Abstract

The invention provides a method for removing water for metal oxide film or rust, wherein a kind of electrolyzed acidic water composed of specific ions and prepared through electrolysis can be very effective in removing the oxidation film or rust from metals, the acidulous water can produce ultrasonic oscillation action which can fulfill the removing work with high quality and within a short period of time.

Description

technical field [0001] The present invention relates to a method for removing oxide film or rust on a metal surface using acidic water obtained by electrolysis as water for removing oxide film or rust on a metal surface, and using the acidic water. Background technique [0002] For example, when metal products (especially steel alloys, copper and copper alloys) are placed for a long time, an oxide film will be formed on the surface, resulting in the disappearance of metallic luster, discoloration, reduction of electrical properties, and reduction of material strength. Furthermore, these oxide films will cause further corrosion, and even progress to a rusted state. [0003] In addition, when metal products are subjected to heating operations involving gas welding, electric welding, spot welding, brazing, etc., an oxide film will be formed on the surface in the same way as when they are left for a long time. In addition, when the heating time is long or the heating temperatur...

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Problems solved by technology

And this will become an obstacle to coating or electroplating treatment, and will gradually peel off due to vibration, etc., and adhere to the periphery of the metal product or part. If it is a pipe, it will be mixed into the fluid and cause adverse effects on the entire device.

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