The spiral steel pipe produced by Hebei Spiral Steel Pipe Factory - Zhongyuan Pipeline Manufacturing Co., Ltd. is a spiral welded steel pipe made of strip coils. Spiral steel pipe feeds the strip into the welded pipe unit. After rolling through a number of rollers, the strip is gradually rolled up to form a circular tube blank with an open gap. Adjust the squeeze roll pressure to reduce the weld gap to 1 to 3 mm. The ends of the soldered connectors are flat.

The spiral steel pipe produced by Hebei Spiral Steel Pipe Factory-Zhongyuan Pipeline Manufacturing Co., Ltd. uniformly deforms the steel plate during the forming process, the residual stress is small, and the surface is easily scratched when not in use. Secondly, the diameter and size range of the spiral steel pipe is relatively large, which can meet the different needs of customers. and more flexible. In addition, the zinc steel fence manufacturer also wants to tell you here that since the spiral steel pipe produced by Hebei Spiral Steel Pipe Factory-Zhongyuan Pipeline Manufacturing Co., Ltd. uses double-sided submerged arc welding production technology, the best position welding can be applied during the use process. The purpose is achieved, and the edge error phenomenon is not easy to occur, so as to ensure the welding quality and product quality.

Continuous ultrasonic inspection of spiral steel pipe welds produced by Hebei Spiral Steel Pipe Factory-Zhongyuan Pipeline Manufacturing Co., Ltd., and manual ultrasonic and X-ray re-inspection. If there are any defects, NDT will be performed again after repair until it is confirmed that the defect has been eliminated. So far, helical tube technology has relatively few applications in mass transfer and separation.