Metal polishing solution and metal polishing method

Abstract

The invention discloses a metal polishing solution and a metal polishing method. The metal polishing solution comprises the following components of microorganisms, a microorganism culture solution and a corrosion inhibitor, wherein metabolite of the microorganisms can be subjected to oxidation-reduction reaction with metal so as to polish the metal, when the metal polishing solution is used for polishing the metal, the microorganisms can convert metabolic raw materials in a fresh microorganism culture solution into metabolites with oxidizing property, and the metabolites and the metal are subjected to oxidation-reduction reaction, so that the metal is oxidized into ions to be dissolved in the metal polishing solution, and meanwhile, the metabolites are reduced into the metabolic raw materials, and the metabolism raw material is converted into the metabolites by the the microorganisms again to participate in metal oxidation, so that the metabolism raw material without oxidability is continuously and circularly oxidized into the metabolites with an oxidation effect on the metal through the microorganisms, continuous polishing of the metal surface can be realized, continuous addition of a large amount of chemical reagents is avoided, and therefore, the pollution to the environment is reduced.

Description

technical field [0001] The invention relates to the technical field of metal processing, in particular to a metal polishing liquid and a metal polishing method. Background technique [0002] The manufacturing process of common metal parts usually includes: refining, casting, forging, extrusion, machining and other steps. There are usually some defects (scratches, cracks, impurities) or internal stress on the surface of the processed metal parts, and surface polishing is required before application to improve the surface quality, thereby improving the performance of the parts and prolonging their service life. [0003] At present, chemical polishing has become a commonly used surface polishing method due to its unique advantages. In the chemical polishing method, since the removal process of the metal surface material is generally carried out in a chemical solution, dust is generally not generated during the polishing process; the contact area between the metal surface and t...

AI Technical Summary

Problems solved by technology

[0004] However, the chemical polishing process will constantly consume chemical reagents. In order to maintain the polishing performance, it is necessary to continuously add a large amount of chemical reagents to the polishing liquid, and the production process and discharge of these chemical reagents will pollute the environment. For example: nitric acid-hydrochloric acid system The chemical polishing process produces "yellow smoke (NO 2 etc.)” and other toxic gases

Therefore, the chemical polishing method is more polluting to the environment.

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