1. Uncoiling and Straightening

High-quality steel coils are carefully selected and processed through advanced straightening equipment to achieve excellent flatness and dimensional accuracy. This process provides a stable foundation for subsequent forming and welding operations, ensuring consistent pipe quality.

2. Forming

During the forming process, steel strips are gradually shaped into a cylindrical pipe through multiple forming rolls. Precise control of roll positioning, forming speed, and alignment parameters ensures accurate pipe diameter, uniform wall thickness, and reliable dimensional consistency.

3. Internal and External Welding

SHOUYUAN utilizes advanced submerged arc welding (SAW) technology and double-sided welding systems to perform high-quality internal and external welds. Automated welding control and tracking systems continuously monitor welding parameters, ensuring strong, reliable, and defect-free weld seams.

4. Pipe Cutting

After welding, pipes are accurately cut to the specified lengths using advanced cutting technology. This process ensures precise dimensions and meets customer requirements for different application standards.

5. Inspection and Quality Control

Comprehensive quality inspections are conducted using advanced testing technologies, including ultrasonic flaw detection and X-ray inspection systems, to verify weld integrity and overall pipe performance. Any detected defects are promptly repaired and re-inspected to ensure that every pipe meets required quality standards.

6. Pipe End Processing and Anti-Corrosion Treatment

Finished pipes undergo surface cleaning to remove oil, impurities, and contaminants. Advanced coating and spraying technologies are then applied for anti-corrosion protection, significantly enhancing service life and durability. Through strict processing and quality control procedures, high-performance spiral welded pipes are delivered to meet demanding industrial applications.