A method for inhibiting corrosion of hydraulic steel structural parts by using strong electrolyte solution

Abstract

The invention discloses a method for using a strong electrolyte solution to inhibit the corrosion of a hydraulic steel structure. The specific steps are as follows: (1) Add a strong electrolyte to the solution where the hydraulic steel structure is located until the conductivity of the aqueous solution is greater than 20000µS / cm, and then connect the protected hydraulic steel structure with the titanium anode to form a closed loop; (2) polarize for a period of time, measure the potential of the hydraulic steel structure; (3) if the hydraulic steel structure If the surface potential is lower than ‑0.85V, it indicates that the corrosion of the hydraulic steel structure is inhibited; if the surface potential is higher than ‑0.85V, repeat steps (1)‑(2) until the surface potential is lower than ‑0.85V ; Strong electrolytes are salts of strong acids and strong bases. Adopting the method for inhibiting the corrosion of hydraulic steel structural parts provided by the present invention can prevent the metal from being continuously oxidized and corroded, and can further change the corrosion characteristics of the solution by adjusting the conductivity of the reaction solution in which the metal is located, so as to slow down the tendency of metal corrosion .

Description

technical field [0001] The invention belongs to the technical field of metal anticorrosion, and in particular relates to a method for inhibiting corrosion of hydraulic steel structural parts by using a strong electrolyte solution. Background technique [0002] Corrosion of metal materials is a relatively large destructive factor to our economic construction and life. It will bring huge social harm and economic losses to our social environment. We call the phenomenon of destructive erosion of metal surfaces corrosion. Metal corrosion can be roughly divided into three categories: electrochemical corrosion, chemical corrosion and physical corrosion. The economic loss caused by corrosion includes two parts: direct loss and indirect loss. The cost of replacing damaged equipment due to corrosion, repeatedly painting protective coatings to prevent equipment corrosion, applying cathodic protection, and replacing easily corroded carbon steel with high corrosion-resistant alloy steel...

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Problems solved by technology

The energy losses associated with this invention are high due to the use of transformers

However, according to the value disclosed by Cowatch, its efficiency is lower than 10%, and the higher heat requires a good heat dissipation method at the same time.

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