Description of effective methods for corrosion and solution of valves

1. Corrosion of a valve is generally understood to be the damage of a valve metal material under the action of a chemical or electrochemical environment. Since corrosion occurs in the spontaneous interaction between the metal and the surrounding environment, how to isolate the metal from the surrounding environment or use more non-metallic synthetic materials has become a common concern.
2. It is well known that corrosion damage of metals has a considerable impact on the valve's duration of action, reliability and service life. The action of mechanical and corrosive factors on the metal greatly increases the total amount of wear on the contact surface. The total amount of wear on the surface of the friction during operation of the valve. During operation of the valve, the frictional surface is subject to wear and damage as a result of simultaneous mechanical action and chemical or electrochemical interaction of the metal with the environment. For valves, the climatic conditions of the pipeline work are complex; the presence of hydrogen sulfide, carbon dioxide and some organic acids in media such as oil, natural gas and oil layer water increases the destructive force of the metal surface and thus quickly loses working ability.
3. The chemical corrosion of the metal depends on the temperature, the mechanical load of the friction parts, the sulfide contained in the lubricating material and the stability of its acid resistance, the duration of the contact between the medium and the catalytic action of the metal on the nitriding process, and the corrosion immersion. The rate of molecular-to-metal conversion of an eclipse substance, and the like. Therefore, the anti-corrosion method (or measure) of metal valves and the application of synthetic material valves have become one of the themes of current valve industry research.
4, metal valve anti-corrosion, can be understood as the metal valve is coated to protect it from corrosion conditions (such as paint, pigments, lubricants, etc.), so that the valve is manufactured, preserved, transported or in its All processes used are not subject to corrosion.
5, metal valve anti-corrosion method depends on the required protection period, transportation and storage conditions, valve construction characteristics and materials, of course, to adapt to the economic effects of anti-corrosion.
There are four main methods for preserving metal valves and their components:
1. Place the volatile corrosion inhibitor in the atmosphere of the steam (wrapped with resist paper, blown to inhibit air from passing through the product chamber, etc.).
2. Use blocked water and alcohol solutions.
3. Apply a thin layer of anti-corrosion (protective) material to the surface of the valve and its components.

4. Apply a thin layer of resisted film or polymer to the surface of the valve and its components.