How to reduce the corrosion of various stainless steel submersible pump doubt

Stainless steel pump equipment in the production of the main effect of life I do not have to say it, I believe we will see. Corrosion is the chemical industry's most troublesome thing, once the equipment will be affected by corrosion, function, damage to equipment, affecting the industry, and even constitute serious consequences. How to reduce the corrosion of various stainless steel pump doubt it?
1 stainless steel pump structure design should be reasonable, irrational stainless steel pump structure can cause corrosion of the equipment; In addition, stainless steel pump parts of the chemical composition of raw materials to be uniform to prevent electrochemical corrosion; for large pump shaft and other components To carry out heat treatment, to eliminate residual stress, prevent stress, prevent corrosion fatigue.
2. Metal maintenance layer
Metal maintenance layer can be divided into two kinds of anode maintenance layer and cathode maintenance layer. As the metal of the anode maintenance layer, the potential of the electrode is lower than the potential of the electrode of the metal to be maintained, and the electrical resistance is high. The maintenance effect of the anode maintenance layer is not primarily the maintenance of metal and corrosive media from the compartment, but in the maintenance of open space and damage, maintenance of metal and maintenance of metal between the corrosion of the battery, because the maintenance is corrosion of the battery Cathode, so not subject to damage. And the metal of the cathode maintenance layer has an electrode potential higher than that of the metal to be maintained and has a weak electrical property.
3. Non-metallic maintenance layer
In the metal equipment to cover a layer of organic or inorganic non-metallic materials for chemical preservation is one of the main means of corrosion, according to different corrosion environment, can cover up different types, not the same thickness of corrosion-resistant non-metallic materials, The metal material is separated from the corrosive medium by the maintenance metal and then reaches the intent of preserving it.
4. Electrochemical maintenance
According to the theory of electrochemical corrosion of metals, if the potential of certain metals in the electrolyte solution is decreased, it is difficult for the metal to lose electrons, and then the corrosion rate of the metal can be greatly reduced, and the corrosion can be completely stopped. Can also increase the potential of the metal, the metal passivation, artificially make the metal surface of the fine oxide film, so that the metal corrosion rate decreased significantly.
In addition, the corrosion of equipment and the use of the environment, for a long time in some simple corrosive environment, there will always be some situations, which require frequent cleaning and maintenance of equipment to ensure that equipment function is outstanding, reduce corrosion.
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