Seam Pipe

Experienced welded pipe fabrication

Description of the main production process of large diameter LSAW pipe:
1. plate detection: the steel plate used to manufacture large diameter submerged arc welded LSAW steel pipe enters the production line, first of all, the whole plate ultrasonic inspection;
2. Edge milling: the two edges of the steel plate are milled on both sides by the edge milling machine to achieve the required plate width, parallelism of the plate edges and the shape of the bevels;
3. pre-bending: pre-bending the plate edges with pre-bending machine to make the plate edges have the required curvature;
4. forming: in the JCO molding machine first half of the pre-bent steel plate through a number of step stamping, pressed into the "J" shape, and then the other half of the plate is also bent, pressed into the "C" shape, and finally form an open "O" shape
5. Pre-welding: The formed LSAW steel pipe is joined together and continuously welded by gas shielded welding (MAG);
6. internal welding: vertical multi-wire submerged arc welding (up to four wires) on the inside of the straight seam steel pipe for welding;
7. external welding: using longitudinal multi-wire submerged arc welding on the outside of the straight seam submerged arc welded steel pipe for welding

World-class welded pipe supplier

Professional and reliable supplier

About Us:
At GNEE, we take pride in being a trusted supplier of high-quality welded pipes. With a strong commitment to excellence and customer satisfaction, we've established ourselves as a leading provider in the industry.

Our Production Capacity:
Our state-of-the-art manufacturing facility is equipped with cutting-edge technology and staffed with experienced professionals. This allows us to offer a robust production capacity to meet your pipe supply needs.
Here's an overview of our production capacity:
Annual Output: We have the capability to produce 8000 tons of welded pipes annually.
Pipe Sizes: Our production line can manufacture pipes ranging in various wall thicknesses.

Customization: We understand that each project is unique, which is why we have the flexibility to customize the length, diameter, and specifications of pipes to meet your specific requirements.

All of our welded pipes can be treated with black paint, 3PE, 3PP, galvanized, etc. If you need, please contact us immediately!

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