The three-layer polyethylene (3PE) anticorrosive coating has been widely used in the petroleum pipeline industry due to its good corrosion resistance, water vapor permeability resistance and mechanical properties.
China butt welding machine is a tool for implementing butt welding of plastic pressure pipes, especially the PE pipe welding machine and cutting machine. The working principle of the hot-melt butt welding machine is to use a certain pressure on the two ends of the pipe (piece) to be welded against a heating plate with a preset temperature for a period of time. After the pipe has reached a sufficient temperature, the heating plate is taken out, and the two ends to be welded are pressed to make the two welding end faces close contact, and finally, the two end faces are bonded together.
