with the development of industry,the pipeline system’s wear resistance has received more and more attention,because it is related to production safety.Elbows are an important part of the connecting and changing direction in the pipeline ststem, and need to bear huge impact and wear.Therefore, choosing the right elbow material is vevy important for the pipeline system performance.
One of the usual wear-resistant materials elbows materials is steel pipe lined with alumina ceramic. This type of elbow has many advantages, such as high wear resistance, high hardness, oxidation resistance, corrosion resistance, etc. in addition, it has the characteristics of light weight and low temperature resistance. Therefore, it has become the first choice for many serious wear industry. Wear-resistant elbows are often used at the bends of many wear-resistant pipelines in iron and steel plant, thermal power plant, chemical factorys. There are many types of wear-resistant elbows, such as ceramic wear-resistant elbows and bimetallic wear-resistant elbow. Among them, due to ceramic wear-resistant elbows’ advantages, such as wear resistance, corrosion resistant and light weight. they are widely used in pulverized coal piping.
In the pipeline system, the elbow not only needs to have good bearing capacity, but also needs to adapt to different application fields. For example, high-pressure elbows not only need to bear higher pressures, but also have good wear resistance in concrete delivery pipe and sand slurry delivery pipelines. High-pressure elbows need to have excellent corrosion resistance, acid and alkali resistance in the chemical raw material transportation pipeline system. In addition to ceramic wear-resistant elbows and bimetallic wear-resistant elbows, wear-resistant elbows also include rare earth alloy wear-resistant elbows, high chromium alloy wear-resistant elbows, ceramic composite elbows, etc. these materials are widely used in thermal power, steel, mine, chemical industry, metallurgy and other fields, but it is necessary to select suitable wear-resistant pipeline materials according to actual industry needs.
In the design process of the pipeline system, in addition to considering the material selection, the performance-cost ratio is also a problem that needs to be considered. Using cost-effective materials and avoiding excessive use of elbows can make the pipeline system more flexible.
