The hot-melting welding operation method for PE pipes:

1. Thoroughly clean the inner and outer walls of the pipes to be welded, remove oil, grease and other impurities, and ensure that the pipes are dry.

2. Determine the size of the socket and the position where the pipes are to be welded. Mark the position of the socket on the outer wall of the pipe and cut off the pipe.

3. Insert the male socket into one end of the pipe to be welded, align the axis of the socket with the axis of the pipe, and rotate the socket 90 degrees to fix it.

4. Cut off a section of the same diameter pipe as the socket and align it with the socket. The length of the pipe should be 60-70mm.

5. Insert the end of the pipe into the socket and align it with the socket.

6. Insert a welding rod into the socket and align it with the socket.

7. Open the gas valve and ignite the torch. Adjust the gas flow to 12-15 L/min.

8. Heat up the male socket and female socket evenly by using a torch to rotate the socket and heat up the male socket and female socket evenly. The temperature should be about 200-220 degrees Celsius.

9. Remove the torch from the male socket and female socket and press down the lever to inject a small amount of hot-melt adhesive into the socket. The hot-melt adhesive should flow into the interface between the male socket and female socket.

10. Quickly align the male socket and female socket and rotate them to ensure that there is no air or impurity in the welding interface.

11. After welding, cool down for a while, disconnect the torch, clean up tools and materials, and check whether there is any quality problem in the welded seam.

Note: The above steps are only a reference, and operators should refer to relevant operating procedures and specifications to ensure safety and welding quality.