As a key component of hydropower system, the performance and reliability of hydropower forgings have an important impact on the operating efficiency and stability of hydropower stations. However, hydropower forgings are susceptible to corrosion problems in actual operation. This paper aims to study the corrosion and protection measures of hydropower forgings in order to improve their reliability and service life.
Hydropower forgings are the core components of hydropower system, including turbine blades, guide blades, turbines and so on. Due to the complex working environment, hydropower forgings are often damaged by corrosion, wear and other damage, which seriously affects the normal operation and service life of the equipment. Therefore, how to effectively prevent the corrosion of hydropower forgings and improve their reliability and service life has become an urgent problem in the field of hydropower generation.
Previous research on corrosion and protection measures of hydropower forgings mainly focuses on material selection, surface treatment, anti-corrosion coating and so on. Some studies have shown that the selection of high-strength, corrosion-resistant materials can improve the corrosion resistance of hydropower forgings. In addition, surface treatment technology such as shot peening, rolling treatment, brush plating treatment, etc., has also been applied to the protection treatment of hydropower forgings, and has achieved good results. At the same time, some anti-corrosion coatings such as polyurethane and epoxy resin are also applied in the protective treatment of hydropower forgings, which effectively improves its corrosion resistance.
The research question of this paper is: Can some protective measures be adopted to avoid the corrosion of hydropower forgings? Therefore, we assume that some anti-corrosion coating can effectively improve the corrosion resistance of hydropower forgings.
In this paper, a kind of anti-corrosion material is selected to protect the hydropower forgings by experimental method. First, we selected several common anti-corrosion materials, such as polyurethane, epoxy resin and so on. Then, we coated these anti-corrosion materials on the surface of hydropower forgings, and tested their anti-corrosion ability.
The experimental results show that the hydroelectric forgings protected by polyurethane coating have the best corrosion resistance. Under the experimental conditions simulating the actual working environment, the polyurethane coating can effectively resist the erosion of water, oxygen and chloride ions, thus significantly increasing the service life of hydropower forgings.
The experimental results show that polyurethane coating has a remarkable anti-corrosion effect on hydropower forgings. This may be because polyurethane has excellent wear resistance, corrosion resistance and flexibility, and can effectively resist the erosion of various chemical substances. In addition, the polyurethane coating also has good adhesion and high temperature resistance, which can be firmly combined with the surface of the hydropower forging, thereby improving its corrosion resistance.
Through this study, we found that polyurethane coating can significantly improve the corrosion resistance and prolong the service life of hydropower forgings. Therefore, in view of the corrosion of hydropower forgings, it is of great practical significance to adopt appropriate anti-corrosion measures.
However, there are still some limitations in this study. For example, only one anti-corrosion material was selected during the experiment, and future studies can consider exploring the influence of other anti-corrosion materials on the protection effect of hydropower forgings. At the same time, the experiment did not take into account the complex operating conditions that may exist in the actual operation process (such as temperature, pressure, impact, etc.), so it is necessary to further explore the influence of these factors on the anti-corrosion ability in the follow-up research.
