Environment-friendly type stainless steel polishing liquid and preparation method and polishing technology thereof

Abstract

The invention provides environment-friendly type stainless steel polishing liquid and a preparation method and a polishing technology thereof. The environment-friendly type stainless steel polishing liquid is prepared from a strong oxidant, corrosive acid, a compound complexing agent, a corrosion inhibitor, a rare earth additive, a viscosity adjuster, a polishing agent, a defoaming agent, a surfacant, an NOx removal agent and deionized water. The environment-friendly type stainless steel polishing liquid has the advantages that the stability is good, the service life is long, a technology of preparing the polishing liquid and treating stainless steel is simple, the surface of the treated stainless steel is flat, the forming of an oxide film and pitting corrosion are avoided, a mirror surface is excellent, the polishing time is shorter, the production of irritant gas in the use process is avoided, and the polishing liquid can be recycled for multiple times.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a chemical polishing solution for stainless steel, a preparation method and a polishing process thereof. Background technique [0002] With the improvement of people's living standards, stainless steel products are becoming more and more widely used in chemical industry, petroleum, home appliances, hardware, food, machinery manufacturing and other fields, and the requirements for stainless steel products are getting higher and higher, not only must be durable, but also To achieve the appearance of mirror, bright, delicate and pleasing effect. [0003] At present, the commonly used methods of polishing stainless steel mainly include (1) electrochemical polishing. Although the effect of electrochemical polishing is excellent, the energy consumption is high. For complex parts, not only special fixtures are required, but also for anodes, cathodes, and blin...

AI Technical Summary

Problems solved by technology

Commercially available polishing liquid mainly has the following types: sulfuric acid type chemical polishing liquid, phosphoric acid type chemical polishing liquid, dichromic acid and its salt series, hydrogen peroxide series, each type of polishing liquid has its own advantages, For example, sulfuric acid polishing liquid is easy to meet the requirements of environmental protection because it does not volatilize and produce smoke. Phosphoric acid can form a mucous film on the metal surface, which is easy to meet the fluidity requirements of the polishing liquid. Each type of polishing liquid has its own shortcomings, such as hydrogen peroxide. It decomposes quickly in a high temperature environment, and the polishing liquid generally has problems such as short service life, poor solution stability, difficult control of process parameters, difficult maintenance of chemical polishing liquid, large amount of waste liquid treatment, and high production cost.

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