If the nitrogen gas spring is in contact with the electrolyte solution, the corrosion caused by the action of the micro battery is called electrochemical corrosion. For example, the nitrogen spring is in contact with acid or salt solutions. These solutions are electrolytes. Due to defects or impurities on the surface of the nitrogen spring, electrodes with different potential differences are formed, so that the nitrogen spring is constantly subject to electrolytic corrosion; another example is that the nitrogen spring is wet. In the atmosphere, the water vapor in the atmosphere condenses into a water film or water droplets on the surface of the nitrogen spring, and the corrosive gases in the atmosphere (such as sulfur dioxide and hydrogen sulfide in industrial waste gas or salt spray in the ocean atmosphere) are dissolved An electrolyte is formed in the water film or droplets. In addition, the impurity or defects of the nitrogen spring metal can also form electrodes with different potential differences, and the nitrogen spring also produces electrolytic corrosion. These are all electrochemical corrosion.
Will the nitrogen gas spring corrode? What are the corrosion phenomena? The corrosion of nitrogen springs can be divided into chemical corrosion and electrochemical corrosion according to the type of reaction. They are both the result of changes in metal atoms on the surface of the nitrogen spring or the result of electron gains and losses becoming ionic states. If the metal on the surface of the nitrogen spring only reacts chemically with the surrounding medium, and the nitrogen spring causes corrosion, it is called chemical corrosion. For example, the nitrogen spring of the mold oxidizes in a particularly dry atmosphere to form an oxide film, and the nitrogen spring interacts with the liquid or the liquid in a non-electrolyte liquid. The impurities in the liquid undergo chemical changes, etc., which are chemical corrosion.
The chemical corrosion of nitrogen gas springs is small and slow, while the electrochemical corrosion is the main and common. But generally speaking, chemical corrosion and electrochemical corrosion exist at the same time. Nitrogen gas springs are often corroded by surrounding media during manufacturing, storage, and use. Since the nitrogen gas spring is working by elastic force, the elastic force of the nitrogen gas spring will change and lose its function after being corroded. Therefore, preventing the corrosion of the nitrogen gas spring can ensure the stable operation of the gas spring and prolong its service life.
