Spiral pipe weld treatment and process characteristics
Spiral pipe is a type of steel pipe widely used in transportation pipelines. Its weld treatment and process characteristics directly affect its quality and service life.
Spiral pipe weld treatment process:
Steps | Contents | Purpose |
Pretreatment | Clean the oxide scale, | Ensure welding quality and avoid |
Welding process | Use submerged arc welding | Ensure good weld formation and |
Weld inspection | Perform ultrasonic or | Check weld defects and ensure |
Weld heat | Eliminate welding stress through | Improve weld toughness and extend |
Anti-corrosion | Coat or galvanize the weld and | Enhance corrosion resistance and |
Process characteristics:
1. High strength: The weld angle of the spiral pipe is large, which enhances the bending strength and compressive strength.
2. Good weld uniformity: The weld is long but the force is uniform, and the quality is stable.
3. High production efficiency: Continuous molding and automated welding process, suitable for mass production.
4. Flexible size: The diameter and wall thickness are adjustable to meet different engineering needs.
5. Good sealing: Submerged arc welding technology ensures the sealing of the pipeline, which is suitable for liquid and gas transportation.
Through reasonable weld treatment and advanced technology, spiral pipes show excellent performance and wide application value in industrial applications.
