Description
The steel plates of certain thickness, after being cut and separated, are unrolled and straightened to be sent to the forming machine. Using the roller, the steel pipe is processed in a chain. The edge of the steel plate is melted by a proximity effect and the skin with high frequency current. Then, the steel plate is extruded and welded using the extruder roller. The steel pipe making machine is also called the ERW machine, which stands for Electric Resistance Soldier.
Application
- The high frequency straight seam pipe welding machine is compatible with all kinds of round, square and rectangular pipe.
- According to the functions of the product, the ERW machines can be divided into API models and national standard models. The API model produces mainly high-level pipes to supply oil, natural gas and oil. The national standard model mainly produces steel pipes, such as water-gas pipes and structural pipes.
Advantage - In the process preparation, the high-frequency straight seam pipe welding machine mainly develops loop volume hoppers.
- In the aspect of the training unit, the ERW machine develops a double wire formation.
- The structure of the training unit develops part of the group of vertical cylinders, the small row of straight rollers and the vertical roller.
- The machine for manufacturing high-frequency straight-line steel tubes establishes a continuous flow of inspection and ultrasonic inspection in the line of operation.
- In the heat treatment technology of the steel pipe, the heat treatment of the weld, the heat induction frequency that is off-line and finally the continuous bright annealing treatment are developed online.
Classification - The aforementioned styles of a high-frequency straight seam tube forming machine can be divided into rollformer, cage former, flexible former (or FFX former) and fully automatic flexible former.
- The high frequency straight seam steel pipe machine developed by our company uses the roll former when it is a small diameter (Φ ≤ 114). The cage former is used when there is a small, thin wall of DC (Φ ≤ 165, δ ≤ 6). The flexible former is used when there is a medium diameter (Φ ≤ 340). The automatic flexible former is used when there is a larger diameter.
- According to the function of the products, the high frequency straight seam pipe welding machine can be divided into API models and national standard models.
Production process of the Machine for sewing pipe welding straight line by
