The main differences between high-frequency welded pipe and extruded pipe lie in the production process, application scenario and performance characteristics.
Process of production
Electric Resistance Welded Pipe (Electric Resistance Welded Pipe) is the steel plate through the multi-roller bending molding, and then high-frequency induction heating, according to the principle of skin effect to strengthen the material surface melting and connection of the pipe. After cold bending, the steel belt or plate is discharged to the feeder to the welding machine, and the welding and heating treatment of the steel pipe is completed in a short time under the action of high frequency current. The advantages of high-frequency welded pipe are smooth inside and outside surface of welded pipe, high strength, high production efficiency, low cost, and can make various specifications of pipe. High frequency welded pipe is widely used in automobile, machinery, electrical, construction and other fields.
Extruded Tube : Extruded tube (Extruded Tube), also known as aluminum extrusion tube or aluminum profile, refers to the aluminum through heating, pressure and mold molding of the tube, with a different production process from high-frequency welded pipe. Extrusion pipe has the characteristics of low cost, strong plasticity, high surface flatness, uniform strength, and is not limited by pipe length, can produce any length of pipe. However, the application of extruded pipe is relatively narrow, mostly used in mechanical equipment, electrical appliances and building partitions and other fields.
Application scenarios and performance characteristics
High-frequency welded pipe : high-frequency welded pipe is mainly used for fluid transmission pipeline, such as water, oil, natural gas, gas and other material transmission. Its advantages include low cost, high efficiency, strong continuity, and no waste gas and waste water generated in the production process, low noise, and good environmental protection effect .
Extruded tubes : Extruded tubes are often used in the production of parts that require high precision and surface quality due to their high precision and surface finish. Although hot extrusion parts have better dimensional accuracy and surface finish than hot die forging parts, they usually require subsequent finishing or cutting. Cold extruded parts can be used directly without further processing .
Cost and environmental protection
High-frequency welded pipe : high-frequency welded pipe does not produce waste gas and waste water in the production process, has low noise, good environmental protection effect, and reduces the procurement cost .
Extrusion tube : Both hot and cold extrusion require heating the blank and preheating the die, which may generate certain energy consumption and emissions, but cold extruded parts can be used directly, reducing subsequent processing costs .
4 Conclusion
Through the above analysis, it can be seen that there are great differences between high-frequency welded pipe and extruded pipe in terms of production technology, physical structure and application field. High-frequency welded pipe production technology is advanced and widely used, while extrusion pipe production cost is low, but the scope of application is limited. Production needs to be selected according to specific needs.
