The forming of pipe welding machine equipment consists of two parts, rough forming and fine forming. The forming technology directly determines the output, quality of high-frequency welded pipes, and the consumption of raw materials and rolls. Therefore, the R&D department of the unit is in the design and manufacture of pipe welding equipment. In the process, the molding technology and its attention were paid.

The development of pipe welding equipment forming technology can be roughly divided into three stages according to the forming method: the early roll forming technology, the row roll forming technology in the late 1960s, and the FFX forming technology in the late 1990s.

1. Roll forming technology of pipe welding machine equipment

Due to the early stage of the development of high-frequency welded pipes, the forming technology has just started, and the pipe welding machine equipment uses the early roll forming technology. Such a unit is less restricted by space factors and has greater adaptability. It can produce thin-wall welded pipes and is also suitable for the production of thick-walled pipes. Welded pipe, this roll forming technology has been used for a long time in the early welded pipe industry. But this technology has an important defect that a set of rolls can only produce welded pipes of one size. In this way, the more varieties and specifications of the welded pipe, the more the number of rolls, and the higher the production cost. And when there was no quick roll change device at that time, the roll change time was very long, which greatly restricted the production efficiency. Therefore, it is not suitable for the production of small batches and multiple varieties of welded pipes.

2. Roll forming technology of pipe welding machine equipment

In view of the problems of the above-mentioned roll forming technology, in the late 1960s, the American Yoder Company improved the forming technology of the pipe welder equipment and formed the roll forming technology. This technology has been widely used in the welded pipe production industry for more than 40 years, and has been continuously improved in production.

Pipe welding machine equipment row forming technology supports the use of some general-purpose rolls in the rough forming section of the roll forming machine for welded pipe production. Such rolls can be suitable for the production of welded pipes of several varieties and specifications, reducing the number of rolls in the roll forming machine. Cost, shorten the roll change time. Its disadvantages are: one-sided pursuit of roll sharing, reducing the horizontal roll frame for roll forming, which weakens the deformation effect of the pipe welding machine equipment on the steel strip during the rough forming stage, and the number of fine forming and sizing must be increased to strengthen For the work of steel belt deformation, put the deformation on the roller row section and the precision forming machine. However, due to the structural factors of the equipment in the roller row section, the roundness of the welded pipe produced after welding is not ideal.

3. FFX forming technology of pipe welding machine equipment

The FFX forming technology of the pipe welding machine equipment overcomes the shortcomings of a large number of roll forming rolls and a long roll change time through a reasonable forming method; at the same time, the large deformation characteristics of roll forming are used for reference in the deformation distribution, and the roll forming is avoided. The shortcomings of the technology in the amount of deformation. Compared with roll forming technology, FFX forming machine has:

①It can produce welded pipes with higher steel grade and thinner or thicker pipe walls;

②The horizontal roller and the vertical roller are completely shared, which not only reduces the cost of the roller, but also simplifies the use and management of the roller, and reduces the production time and operating cost;

③Reasonable distribution of the deformation of the steel strip, stable forming process, and a substantial improvement in the quality of the welded pipe produced;

④ Lower equipment investment;

⑤High mechanical strength, high rigidity, can produce high-strength thick-wall welded pipe

⑥ It has many advantages, such as flexibility and rigidity, and strong adaptability.

The above is an overview of the forming technology and development history of the pipe welding machine equipment, and I look forward to your assistance. Our company focuses on second-hand welded pipe equipment suppliers. If you need to buy second-hand welded pipe equipment, welcome new and old customers to consult and purchase.