Hot Melt Butt Method for PE Drainage Pipe



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  PE drain pipeIt is an important pipeline for sewage discharge and an important part of urban construction, so people have high requirements for drainage pipes. So today we come to understand the hot melt docking method of PE drainage pipe.

Before and after 1. the hot melt connection, clean the welder indicator and heating tools. It indicates that there is welding dirt. Wipe it with a clean cloth. The polyethylene residue on the heating tool can only be removed with a wooden scraper.

2. check whether the butt welding machine matches the pipe diameter and the specified butt welding cycle.

The heating time and temperature of 3. hot-melt connection should meet the requirements of the connection tool manufacturer and the pipe manufacturer, and the welding temperature is usually between 200-235 ℃.

The pressure holding and cooling time of the 4. hot-melt connection shall be as specified by the manufacturer of the hot-melt connection tool and the pipe manufacturer. DO NOT MOVE THE CONNECTOR OR PRESSURE THE CONNECTOR DURING THE DURING PRESSURE AND COOLING.

5. PE drainage pipe hot melt to meet the following requirements:

1. Clamp the socket ends of pipes and fittings on the butt welding machine and clean the socket ends.

2. Move the fixture, plane the connecting surface of the pipe and the pipe on the milling cutter, remove the milling cutter, and check the connecting surface of the pipe end so that the gap is not more than 0.3mm.

3. Straighten the two corresponding pipe fittings on the butt welding machine so that they are on the same axis, and the wrong side should not be greater than 10% of the wall thickness.

4. Place the heating tool between the two connecting surfaces. Make the pipe on the butt welding machine close to the heating tool and apply a certain pressure to melt in a linear motion to form a smooth and symmetrical flanging along the entire outer circumference of the pipe.

5. After heating, the joint to be connected should be quickly separated from the butt heating tool, and a uniform external force should be applied to make it fully contact to form a uniform flange.

The above is the method of hot melt butt joint of PE drainage pipe. If you encounter such problems later, you can refer to the above steps.