Application and Problems of ERW Welded Pipe Unit

Operators must not touch the mold during the operation of the unit, and pay attention to placing their hands in the direction of the pipe to avoid improper operation to their health and safety. Make an impact. In addition, the operator of the erw steel pipe unit should pay attention to check whether the lubrication points of the unit are in place before operation, otherwise, pay attention to adding some lubricating oil to ensure the unit can operate and work normally. During the use of the erw welded pipe unit, attention should be paid to the use of some high-temperature-resistant synthetic composite aluminum-based grease, so as to avoid damage to the erw welded pipe unit.

Various problems are bound to be encountered during the operation of the erw welded pipe unit. The rolling stability problem of the erw welded pipe unit is one of the common problems. The rolling stability problem is that the material is often encountered in the process of the high frequency welded pipe rolling machine. The problem of left and right deflection in the road is that the single set of rollers is asymmetry, the left side receives a large force, and the material swings to the right; the right side receives a large force, and the material swings to the left.

We can solve this problem in three steps: the neutral layer in the deformation zone is calculated accurately, the material used in the deformation zone is calculated accurately, and the roller processing has good symmetry. The non-deformed area should not be compressed as much as possible (such as the bottom of the slide rail), and the gap between the upper and lower rollers should be kept consistent during assembly. Before the material is bitten in, a guide bevel should be set according to the rolling state of the front line of the erw pipe welding machine. Before the stable pressure, the material will slide smoothly in the roll.

Common problem of erw welded pipe unit: casting of induction coil and electrode. First of all, whether it is an induction coil or an electrode, sometimes it will be instantly heated by a strong current. If the high-frequency current output is not turned off in time, it will be melted and an open circuit will occur, causing other electrical accidents. The main reasons for this accident are as follows: Water cooling The red-melting phenomenon of the induction coil and the electrode has a great relationship with the water cooling effect. When an exposed hole appears in a certain part of the induction coil, the cooling water will be diverted, so that the induction coil cannot be effectively cooled in time during work, and it will be burnt and melted. Especially for electrodes used in contact welding, water cooling is required not only to have a flow rate and flow rate, but also to slide down close to the outer surface of the electrode, and no space can be formed in the middle. In production, we sometimes feel that the amount of water is very large, but the phenomenon of electrode burning red still occurs for this reason. At the same time, we can use our fingers to feel the impact of the water. When we feel that our fingers have an obvious sensation of being impacted, it means that the flow rate of the water is relatively satisfactory. Poor contact will lead to poor electrical conduction in the circuit. After being locally impacted by a large current, the conductor will quickly start arcing and heat up and burn out. For example, when the screw part that clamps and fixes the induction coil and the compression plate of the electrode contact are loose, it will cause the ignition and heating of the local parts.