Generally, the pressure of the PE pipe hot melt machine and the welding pipe schedule of the pe hot melt machine are detailed in the factory manual of each pe hot melt machine manufacturer. The construction and installation of the PE water supply pipe must strictly follow the welding operation of the hot melt butt machine. Explain the operation, including the fusion time, cooling time, welding temperature, reasonable loss, welding voltage and other welding parameters. The welding operation process of PE pipe is very strict. If you are not careful, it will affect the welding of the entire project. The quality affects the normal operation of the pipeline. Let me tell you about the time, temperature and cooling time required for PE water supply pipe hot-melt butt.
PE water supply pipe hot melt butt joint time:
The pressure of the PE water supply pipe is different, and the wall thickness is also different. The higher the pressure, the thicker the wall thickness. According to the formula, the wall thickness of the PE pipe *10 The data obtained is the welding time of the pipe, such as DN110, The wall thickness of the 1.6MPa pipe is 10.0mm, then 10mm*10=100s.
PE water supply pipe welding temperature required:
The temperature of the heating plate of the hot melt butt machine is adjusted to 200～230℃, and the general temperature is about 210℃. The heating time of the heating plate is different in winter and summer, and the melting length of both ends is preferably 1-2mm.
Cooling time of PE water supply pipe after welding:
Generally speaking, small diameters below DN110 require cooling for more than 20 minutes, and those above DN110 require cooling for more than half an hour. Judging by the hand feel, if the temperature is not very hot, it proves that the cooling time has been reached.
