Research Progress of Anti-corrosion and Wear Resistance Protection Technology of Submersible Pump
In many industries, the material conveying process is one of the links that cannot be avoided. In the past, centrifugal pumps and pipeline pumps have been widely used. Recently, due to the rapid economic development, many enterprises have greatly increased their requirements for the transmission of materials, and have begun to pay more attention to the quality of the transportation process. The submersible pump has gradually become a dominant product. Because of its high efficiency, small size, convenient movement, low noise and no need to consider the form of the pipeline system, the use of this product has been more and more extensive.
The process of conveying material is a process of contact between solid-liquid and liquid-liquid materials. In the process of continuous operation, the pressure, temperature, and concentration of the medium will vary greatly; at the same time, the medium contains many impurities, so it is easy to cause erosion of the equipment parts and cause equipment failure. Therefore, the study of the anti-corrosion and wear protection technology of submersible pump is particularly important.
It is generally believed that aluminum alloy is used as the material for the impeller of a submersible pump. The aluminum alloy used must be absolutely rust-proof to ensure its service life, so the study of rust-proof technology for aluminum alloy normally starts with alloy composition and surface treatment optimization. In addition, for the preparation of highly efficient, wear-resistant and corrosion-resistant aluminum alloy, different elements can be added to the computing program according to their characteristics, and a composite corrosion-resistant and wear-resistant material composed of aluminum alloy matrix can be obtained. At the same time, in order to protect the surface of the parts, some special surface treatment technology can also be used, such as electroplating, plastic spraying and electroless plating, etc.
With the development of science and technology, there have recently been a number of new technologies that can be used to study the anti-corrosion and wear protection technology of submersible pumps. For example, laser surface engineering technology can improve the friction coefficient of the impeller surface and extend its service life; the common protective film formed on the surface of metals can also achieve the effect of rust prevention, and the method of preparing anti-corrosion coating using nanomaterials has also become a research hotspot recently.
In addition, the use of various high-energy processing technology, such as plasma spraying and laser processing, can greatly improve the surface hardness, wear resistance and corrosion resistance of materials, and obviate the problems of corrosion and wear protection of submersible pump parts without adding new materials.
Therefore, in view of the current corrosion and wear problems of submersible pumps, a combination of composite materials that can effectively improve the corrosion and wear resistance, surface treatment technology and modern high-energy processing technology must be used. Through material composition optimization and process optimization, the corrosion and wear resistance of the parts can be improved, and the service life can be extended, which can effectively solve the corrosion and wear problems of submersible pumps in practical engineering applications.
