Anode and cathode device of on-site metallographic electrolytic polishing corrosion instrument and using method thereof

Abstract

The invention relates to an anode-cathode device for on-site metallurgical-phase electrolytic polishing corrosion instruments. The device comprises a power source, an anode assembly and a cathode assembly, wherein the anode assembly is connected with a positive pole circuit of the power source and fixedly arranged on a large-size workpiece, and is a certain distance away from the metallurgical examination site; the cathode assembly is connected with a negative pole circuit of the power source, and contacts the metallurgical examination site on the large-size workpiece after absorbing a chemical polishing reagent; and after the power is on, the device can perform electrolytic polishing corrosion on the metallurgical examination site. The invention also relates to an application method of the anode-cathode device for on-site metallurgical-phase electrolytic polishing corrosion instruments. The cathode assembly is used for absorbing the electrolytic chemical reagent; and thus, when the metallurgical examination site is subjected to polishing corrosion, the electrolytic chemical reagent can sufficiently contact the metallurgical examination site, and the anode assembly can be fixed to the ferromagnetic or non-ferromagnetic large-size workpiece, thereby implementing the metallurgical test on the metallurgical examination site on the on-site large-size workpiece by using the metallurgical-phase electrolytic polishing corrosion instrument, and achieving favorable polishing corrosion effects.

Description

technical field [0001] The invention relates to an anode and cathode device and a method for using the same, in particular to an anode and cathode device for on-site metallographic electrolytic polishing and corrosion instruments and a method for using the same, belonging to the technical field of tooling. Background technique [0002] Metallographic electrolytic polishing and corrosion is to use electrochemical principles to polish and corrode metallographic samples. Metallographic electrolytic polishing and corrosion equipment is a device that can be used for polishing and corroding metallographic samples. Metallographic electrolytic polishing and corrosion is a more convenient and efficient method than mechanical polishing and chemical corrosion. For large workpieces, traditional grinding and polishing is more difficult than laboratory operations, and sometimes it is difficult to achieve the desired results. In addition, some special materials use general chemical corros...

AI Technical Summary

Problems solved by technology

However, the cathode and anode devices with this structure cannot be used for metallographic tests on large workpieces on site.

[0004] However, as a nuclear power manufacturing company, traditional mechanical polishing and chemical corrosion can no longer meet the needs of metallographic testing and failure analysis on large workpieces on site

And due to the relevant regulations in the nuclear power industry, there are many limitations in the implementation of traditional chemical corrosion on large workpieces on site, so electrolytic corrosion is more inclined to meet the requirements

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