Seamless pipes in steel structures:
Seamless pipes & tubes (SMLS) are made from cylindrical blanks through multiple processes such as heating, perforation, rolling or drawing. They have smooth inner surfaces and strong corrosion resistance. They are widely used in petroleum, chemical industry, machinery, nuclear power, aviation, etc. Multiple fields. In the construction industry, seamless pipes are also widely used, especially in steel structures.
Steel structure is a structural form that is assembled from steel components. It has the characteristics of light structure, high strength, and convenient construction. The seamless pipe is one of the important components in the steel structure. The use of seamless pipes in steel structures can greatly improve the strength and stability of the steel structure and ensure building safety.
Application of seamless pipes in steel structures:
Seamless pipes are widely used in steel structures, mainly in construction, bridges, machinery manufacturing and other fields.
1. In the field of construction, it is often used to make skeletons and load-bearing components to support various parts of large buildings, such as floors, walls, roofs, etc.
2. In the field of bridges, it is often used as the skeleton material of bridge towers and piers to bear the load of the bridge deck and vehicle driving.
3. In the field of machinery manufacturing, seamless steel pipes are used to make various mechanical parts, such as bearings, gears, bearing seats, etc.
Advantages of seamless pipes in the field of steel structures:
Compared with welded pipes, seamless pipes have the following advantages:
1. High strength
Because there are no welds on the inner wall of seamless steel pipes, their strength is high and their toughness and impact toughness are also better. Therefore, its pressure-bearing capacity is higher than that of welded pipes of the same size and material. The use of seamless pipes in steel structures can effectively improve the stability and seismic performance of the structure.
2. Strong corrosion resistance
The surface of seamless steel pipe is smooth and has no iron oxide scale and defects, so its corrosion resistance is better than that of welded pipe. It can resist the erosion of various chemical substances such as acids, alkalis, salts, and oxides. It is widely used in marine engineering, petrochemical industry and other environments.
3. High temperature resistance
The material of seamless pipes has the characteristics of resistance to oxidation and thermal expansion. It can be used in high temperature environments for a long time and is widely used in nuclear power and aviation fields.
4. Accurate dimensions
There is a significant difference in the diameter accuracy of welded pipes and seamless pipes. The accuracy of welded pipes is lower than that of seamless pipes. The diameter error of welded pipes under different standards is between 2% and 3%, while the diameter error of seamless pipes is only less than 1%. Therefore, in situations where high precision is required, seamless pipes are preferred. Seamless steel pipes can be customized according to customer requirements, with smooth surfaces and precise dimensions, and can meet various high-demand design and manufacturing needs.
5. Low processing cost
Seamless steel pipes do not need to remove welds before processing, so the processing cost is low, and some special-shaped pipes can only be manufactured with seamless steel pipes.
6. Convenient construction
The design and processing of seamless pipes are advanced, and construction is convenient and fast. It does not require cutting during installation and can be directly connected, reducing construction difficulty and time costs.
Manufacturing process of seamless steel pipe:
There are two main
manufacturing processes for seamless steel pipes: one is the perforation method, which first heats the steel billet, and then uses a perforator to perforate the heated steel billet into a tube with high structural center accuracy and good shape and dimensional accuracy; the other is The first is the rolling method. After the steel billet is heated to a certain temperature, it is rolled and stretched multiple times on the rolling mill to convert the steel billet into a seamless pipe. These manufacturing processes ensure the high quality and high quality of seamless steel pipes.
The development trend of seamless steel pipes in the field of steel structures:
As a pipe material with high strength, high corrosion resistance and precise dimensions, seamless steel pipe will be more widely used in the field of steel structures in the future. With the continuous development of technology, the manufacturing process of seamless steel pipes will become more lean and the cost will be further reduced, thereby meeting the needs of more fields.
Conclusion:
Seamless steel pipes have the advantages of high strength, strong corrosion resistance, high temperature resistance, precise dimensions, low processing costs, and convenient construction, and are widely used in construction, bridges, machinery manufacturing and other fields. As the manufacturing process of seamless steel pipes continues to improve, its application in the field of steel structures will be more extensive in the future.
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