ERW steel pipe is a hot product in Baolai Factory, do you know how it is produced? We will show you the whole processing procedure of Erw welded steel pipes.
1. Decoiling: The steel coils are unwound using a decoiler machine.
2. Cutting: The steel is cut into required lengths using the cutting machine.
3. Edge milling: The edges of the steel strips are milled to ensure proper alignment during welding.
4. Forming: The steel strips are fed through the forming machine, which shapes them into a circular pipe.
5. Welding: The edges of the steel strips are welded together using an electric resistance welding process.
6. Heat treatment: The weld seam is heat treated to ensure the joint is strong and durable.
7. Sizing: The welded pipe is passed through a series of rollers or a sizing machine that adjust the diameter to the required size.
8. Straightening: The pipe is straightened to ensure it is flat and true.
9. Cutting to length: The pipe is cut to the required length using the cutting machine.
10. End finishing: The ends of the pipe are finished to the required specification, such as threading or beveling.
11. Inspection: The finished pipe is inspected for quality and conformance to specifications.
12. Coating: If required, the pipe is coated with a protective layer (such as paint or zinc) to prevent corrosion.
Please feel free to send us an inquiry if you need any of our ERW welded steel products.
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