WUXI DOROND STEEL TUBE CO., LTD (My Answer); 20# Precision seamless steel tube is an important steel tube material, with high precision, high strength, high wear resistance and other characteristics, widely used in machinery manufacturing, automobile manufacturing, petroleum chemical industry and other fields. The manufacturing process of 20# Precision Seamless Steel Tube will be introduced in detail below.
I. Raw material preparation? The first step in manufacturing 20# precision seamless steel pipe is to prepare raw materials. Usually used is high-quality carbon structural steel, its chemical composition and mechanical properties need to comply with national standards. In the selection of raw materials, you need to consider its purity, composition, organization and other factors to ensure that the quality and performance of the final made steel tube meets the requirements.
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Two, heating and piercing? Heating and piercing is one of the key links in manufacturing 20# precision seamless steel tubes. First of all, the prepared raw materials are heated and processed to make them reach the suitable temperature. Next, the heated raw material is pierced through the piercing machine to form a hollow tube blank. In this process, the heating temperature and piercing speed need to be strictly controlled to ensure the quality and dimensional accuracy of the pipe billet.?
Three, rolling and finishing? The billet formed after piercing needs to be rolled and finishing treatment. Through the multi-pass rolling process, the billet will be processed into the required diameter and wall thickness of the steel pipe. In this process, high-precision rolling mills and molds are required to ensure the dimensional accuracy and surface quality of the steel pipe. Finishing treatment includes straightening, head and tail cutting, flattening and chamfering to improve the appearance quality and dimensional accuracy of the steel pipe.
Four, heat treatment? Heat treatment is an important part of improving the mechanical properties and corrosion resistance of 20# precision seamless steel pipe. Through normalizing, tempering and other heat treatment processes, the organizational structure and properties of the steel pipe can be improved. In this process, the heat treatment temperature and time need to be strictly controlled to ensure that the quality and performance of the steel pipe meet the requirements.
Five, testing and packaging? After the manufacturing is completed, the 20# precision seamless steel pipe needs to be tested for quality. The testing items include appearance testing, dimensional accuracy testing, mechanical properties testing and so on. Only through the detection of the steel pipe can be judged as a qualified product. After testing, the steel pipe needs to be packaged to prevent damage during transportation and storage. Common packaging methods include packing, boxing and so on.
Six, production equipment and process control? Manufacturing 20# precision seamless steel tube requires the use of high-precision production equipment and process control. For example, high-precision rolling mills, piercing machines, heat treatment equipment, etc. are key equipment in the manufacturing process. At the same time, it is also necessary to use advanced process control means, such as automated control systems, online testing systems, etc., to ensure that all aspects of the manufacturing process are accurately controlled.
In short, the manufacturing process of 20# precision seamless steel pipe is a complex and delicate process, which requires strict control of the process parameters and operating specifications of each link to ensure that the quality and performance of the final made steel pipe meet the requirements. At the same time, it is also necessary to use advanced production equipment and process control means to improve production efficiency and product quality.