Features and uses of spiral steel tubes
Jul 14, 2018
Spiral steel pipe is a spiral seam steel pipe made of rolled steel strip as raw material, often warm extruded and welded by automatic double wire submerged arc welding technology. The spiral pipe is sent to the welded pipe unit by the steel tube. Through the roll rolling, the strip is rolled up gradually, forming a circular tube with open gap, adjusting the pressure of the extrusion roll, controlling the weld gap in 1~3mm, and making the weld at both ends of Qi Ping.
Main technological characteristics of spiral steel pipe:
A. During the forming process, the steel plate has uniform deformation, small residual stress and no scratch on the surface. The machined spiral steel pipe has more flexibility in the size and size range of the wall thickness, especially in the production of high steel thick wall tube, especially in the medium thick wall tube, which can not be compared with other technology, which can meet the requirements of the user in the specification of the spiral steel pipe.
B. adopts advanced double-sided submerged arc welding technology, which can realize welding in position, and is not prone to defects such as misalignment, welding bias and incomplete penetration. It is easy to control welding quality.
C. carries on 100% quality inspection to the steel pipe, which makes the whole process of the steel pipe production under effective detection and monitoring, and effectively guarantees the product quality.
D. The entire equipment of the production line has the function of networking with the computer data acquisition system, realizing the real-time data transmission, and the technical parameters of the production process by the central control room.
The spiral steel pipe is mainly used in the water project, the petrochemical industry, the chemical industry, the power industry, the agricultural irrigation and the urban construction. It is one of the twenty key products developed in China.
For liquid delivery: water supply and drainage. For gas transportation: gas, steam, liquefied petroleum gas. For structural purposes: piling pipes, bridges, wharves, roads, building structures, etc.
Material:
Q235B、Q345(16Mn)、
L245(B)、L290(X42)、L320(X46)、L360(X52)、L390(X56)、L415(X60)、L450(X65)、L485(X70)、L555(X80)
