China ERW Straight Seam Welded Pipe Production Line

ERW Straight Seam Welded Pipe Production Line
The straight seam high-frequency welded pipe unit is to open and level the steel plate of a certain width after slitting and slitting, and then enter the forming machine, use the roller to bend the steel plate into a round pipe, and use the proximity effect and skin effect of the high-frequency current to make the steel The edges of the belt are melted and squeezed and welded into a round tube with a squeeze roller. Longitudinal welded pipe unit is also called ERW unit.
The forming methods of longitudinally welded pipes are divided into roll forming, flexible forming and fully automatic flexible forming. The unit developed by our company adopts roll forming for small diameter (Φ≤114), and flexible forming or fully automatic flexible forming for medium and large diameter (Φ≤711).
In recent years, our company has also developed precision control molding. The advantage of this molding is that through precise control, the quality of rough molding is very good, and there is no need for fine molding to correct the tube shape. Therefore, the precision molding of this molding method does not change the roll. form. In this way, all the forming machines do not need to replace rolls, which solves the problem that the previous unit does not need to change rolls for rough forming, and the rolls must be changed for fine forming, which saves roll investment, reduces the time for changing specifications, and improves the efficiency of the unit. And when changing specifications, it adopts full computer control. As long as the pipe diameter, wall thickness, material and other parameters are input on the computer, the roll will be automatically in place. Greatly improve the efficiency and yield of the unit. This molding method is suitable for medium and large units, and models from 219 to 711 can be used, which greatly saves investment and improves efficiency.
Straight seam high frequency welded pipe units are divided into API models and national standard models according to product usage.
API models are mainly used to produce high-grade steel pipes such as oil and natural gas pipelines and oil well casings. They have strict requirements on the material and quality of the products. The unit is equipped with intermediate frequency annealing, air-cooled rollers, ultrasonic testing, high-pressure hydraulic testing machines, and diameters. Machine and other testing equipment and process equipment.
National standard models are mainly used to produce low-pressure fluid pipes, structural pipes and other steel pipes.
Models:

No.ModelOD (mm)Speed (m/min)Thickness (mm)Capacity (kw)Area (M2)1HNZF-114Φ50 - Φ11410 - 902.0 - 9.070018x1202HNZF-127Φ50 - Φ12710 - 902.0 - 9.070018x1203HNZF-140Φ60 - Φ14010 - 902.0 - 1075018x1204HNZF-165Φ76 - Φ16510 - 802.0 - 1080018x1505HNZF-219Φ89 - Φ21910 - 603.0 - 14100024x2006HNZF-273Φ89 - Φ27310 - 603.0 - 14120024x2007HNZF-325Φ140 - Φ32510 - 404.0 - 16250024x3008HNZF-355Φ14 - Φ35510 - 404.0 - 16250024x3009HNZF-406Φ165 - Φ4068 - 304.0 - 16300024x40010HNZF-426Φ165 - Φ4268 - 304.0 - 16300024x40011HNZF-508Φ219 - Φ5088 - 304.0 - 20500030x40012HNZF-610Φ273 - Φ6108 - 304.0 - 22700030x40013HNZF-630Φ273 - Φ6308 - 304.0 - 22700030x40014HNZF-660Φ273 - Φ6608 - 304.0 - 25700030x40015HNZF-711Φ325 - Φ7118 - 255.0 - 251000030x600

Process:
Loading Coil - Uncoiling - Leveling - Cutting and Welding - Accumulator - Precise Leveling - Forming - HF Welding - Water Cooling - online UT Detector - IF Annealing - Air Cooling - Water Cooling - Sizing - Flying Cut - End Facing and Beveling - Hydrotester - Offline UT Weld and Pipe Inspection - Weighting, Measuring, Marking - Pipe Collection
219mm ERW Welded Pipe Line was successfully commissioned in Hengshui Jinghua Pipe Manufacturing Co., Ltd.
Packing & Shipping
1. We use steel wire and wooden frame to fix the pipe mill.
2. In addition, used shockproof film to protect the main motors.
3. We use containers for shipping.
4. Generally speaking, we start at Tianjin sea port, but we also can start at other port according to customers need.
Our Factory
Our Customer
Integrated Services
1. Provide customers with a reasonable investment plan, filter the appropriate models recommended to customers.
2. Free equipment drawings, customer plant equipment planning drawings.
3. Provide the base map required for installation free of charge.
4. Provide equipment installation and commissioning until the buyer operates normally.
5. Provide professional technical training, as soon as possible to allow the buyer's operator to master the operation and use of the equipment.
6. Provide and coordinate auxiliary equipment, accessories, and consumables.
7. The warranty period is one year, except man-damage. If you have any question in operation in operating the machines, you can call us or send emails, we will solve the problem for you asap.