The specific process flow of high-frequency welded pipe equipment is as follows: open the end of the steel coil, straighten it and send it to the subsequent equipment. After uncoiling, flatten the strip steel, cut the head and tail, cut the material with a disc, and then rewind. The raw materials are fixed in length and width, and are cut into corresponding widths based on the actual length of the pipeline. Type I groove is usually used for welding, which can ensure uniform heating along the thickness direction and easy preparation of the groove. After uncoiling, continue to level the strip steel, cut the head and tail, and cut the butt welds to ensure continuous production of the forming unit. After passing the horizontal spiral loop, non-destructive testing is conducted to check for defects in the middle of the strip steel, and then the strip steel is stored in the loop device for use by the forming unit.
The prepared strip steel enters the continuous forming high-frequency welded pipe equipment and gradually bends under the action of the extrusion roller until it is rolled into a round pipe. The two edges of the steel strip are heated to the welding temperature by a high-frequency welding machine, and then subjected to pressure welding by an extrusion roller. Afterwards, the internal and external burrs formed by the extruded molten metal or plastic metal on the inner and outer surfaces of the steel pipe are removed by the deburring device. After a period of air cooling, the welded pipe is water-cooled to prevent bending and deformation caused by air cooling. The steel pipe section of the extrusion roller has a certain degree of vertical ellipticity, and the outer diameter is slightly larger than the finished pipe. In order to obtain accurate outer diameter and cross-sectional shape of the steel pipe, the welded pipe of the high-frequency welding machine must be cold calibrated using a sizing machine after water cooling. Fixed length welded pipes should be cut into fixed lengths or double lengths during motion, while meeting the corresponding tolerance requirements.
Due to the maturity and excellent performance of forming welding technology, high-frequency welded pipe equipment has been widely used in industries such as chemical, petrochemical, power, and building structures. The main function of the equipment is to be used during pipeline installation. There are many pipeline products on the market now, each with its own characteristics. Pipeline products play an important role in the market and are also a necessity in daily life. In addition, the wall thickness of the pipe is relatively large, which can meet the requirements of general pipes and has high precision in pipe making. Another point is stable performance and high output.
High frequency welded pipe equipment can be used for welding bimetallic composite pipes such as air conditioning copper pipes, air conditioning copper pipes, and seamless steel pipes. Used for welding bimetallic composite pipes. After welding, the appearance is beautiful, solid, and round, and the heating is uniform without any missed welding or missed welding phenomenon. The advantages of high-frequency welded pipe equipment during operation are also very obvious, such as fast induction heating speed, high efficiency, energy saving, and low cost compared to oxygen welding. Small oxidation area, energy-saving and low cost, small oxidation area, beautiful appearance after welding, uniform heating, and no risk of welding leakage. In fact, the equipment has high efficiency, fast welding speed, 1-5 seconds per tooth, good repeatability, good repeatability per tooth, fast and uniform heating speed, which can effectively avoid cracks caused by tooth aging and local overheating, as well as safety hazards such as missing teeth caused by incomplete melting in the melting furnace. High frequency welded pipe equipment is a sawtooth woodworking saw blade with high performance and toughness.
