The cause of large diameter spiral steel pipe is widely used
Smaller diameter pipe mostly straight seam welded, large diameter spiral welded pipe for the most spiral submerged arc welded steel pipe hot-rolled strip in a spiral bending,
Performed outside seam and seam welding system with automatic submerged arc welding into a spiral pipe joints.
Spiral steel pipe for the following reasons it is widely used in large-diameter spiral pipe production:
1) Just change the angle formed, you can use the same strip width of the production of large diameter steel pipe;
2) Because it is a continuous bending, so the length of the pipe length is not limited;
3) spiral weld uniformly distributed over the entire circumference of the pipe, large diameter steel pipe so high dimensional accuracy, intensity is higher;
4) Easy to change size, suitable for small quantity and variety of large-diameter pipe production.
Performed outside seam and seam welding system with automatic submerged arc welding into a spiral pipe joints.
Spiral steel pipe for the following reasons it is widely used in large-diameter spiral pipe production:
1) Just change the angle formed, you can use the same strip width of the production of large diameter steel pipe;
2) Because it is a continuous bending, so the length of the pipe length is not limited;
3) spiral weld uniformly distributed over the entire circumference of the pipe, large diameter steel pipe so high dimensional accuracy, intensity is higher;
4) Easy to change size, suitable for small quantity and variety of large-diameter pipe production.
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