failure is relatively speaking more, and the cause of failure is more complex, often a result caused by a variety of reasons, or a cause can cause several results. Some troubleshooting is tricky. For example, the guide mechanism of scratch, tube mill
configuration scratch, long ride through welding, slits, blisters, peach-shaped tube.
High-frequency welding is a kind of welding method to realize the mutual connection between the workpiece metal with high-frequency current flowing through the contact surface of the workpiece contact resistance heat generated by heating and in the case of applying upsetting force.
production process depends on the product variety, from raw materials to finished products need to go through a series of processes, the completion of these processes requires a corresponding variety of mechanical equipment and welding, electrical control, detection devices, these devices, and devices in accordance with the different process requirements there are a variety of reasonable layout, high frequency welded pipe.