The following precautions should be taken when using high-frequency welded pipe equipment:
1. Select appropriate parameter combinations, including power supply frequency, power, pressure, and other parameters. This determines the welding quality.
2. Install the crimping ring and center electrode to ensure good contact between the two ends of the welded pipe and the electrode.
3. Check the water cooling system to ensure that the cooling water circulation is normal. Overheating can damage the electrodes.
4. Insert the pipe between the electrodes and adjust the pipe so that both ends are flush with the electrodes.
5. Apply axial pressure to ensure good contact between the pipe and the electrode. Commonly used pneumatic cylinders provide pressure.
6. Start with power on, stop power supply after both ends of the pipe melt, and then maintain pressure for cooling.
7. The crimping time is generally between 1-5 seconds, and the specific parameters should be determined based on the pipe diameter and wall thickness.
8. The pressure holding cooling time needs to be sufficient, usually 3-4 times the crimping time.
After welding is completed, the surface quality of the welded junction should be checked to ensure that there are no defects.
10. Regularly maintain the electrodes to ensure that their contact surfaces are clean and flat.
Using high-frequency welding equipment according to standard operating procedures can ensure the quality of pipe connection.
