Precautions for hot-melt connection of HDPE pipes: when HDPE pipes are hot-melt butt connected, the required voltage is between 200 and 220V. If the voltage is too high, the temperature of the heating plate will be too high, and the voltage will be too low, and the butt joint machine will not work normally; When the heating plate is heated, the butt joints should be kept aligned, otherwise the joint area will be insufficient, the welding joint strength will not be sufficient, and the curling will not be aligned; the pipe joints will not be cleaned when the heating plate is heated, or there will be oil, sediment and other impurities on the heating plate, which will cause The joint is disconnected and leaks; the heating time should be well controlled, the heating time is short, and the heat absorption time of the pipe is not enough, it will cause the welding seam to be too small, and the heating time is too long, it will cause the welding seam to be too large, and it may form a virtual weld .
