No, PE links can be fused by two ways, hot melt.
PE is the most basic plastic of polyethylene plastics, plastic bags, plastic film and so on are PE, HDPE is a high crystallinity, non-polar thermoplastic resin. The appearance of the native HDPE is milky white and is somewhat translucent in the narrow cross section. PE has excellent properties that are resistant to most life and industrial chemicals.
1. When using this method, the hot melt butt welding machine is adopted, and the main operation steps are as follows:After the butt welding machine has been debugged, put the pipe to be placed on the welding jig and clamp;The cleaning pipe end to be connected and connected with two end milling cutter alignment docking, the displacement is not greater than the pipe wall thickness of 10%:When the temperature of the heating plate reaches the set temperature, put it on the heating plate:After heating, take out the heating plate, quickly start the oil pump pressure, join the two pipe heating surface, and step up to the welding pressure, keep pressure and cool down:After cooling to the specified time, open the clamp and remove the pipe from the rack, observe the roll edge, determine the quality of the connection, and complete the connection.2. Check the quality of hot melt butt jointThe determination of the quality of hot melt butt welding is still mainly concerned with nondestructive appearance inspection of welding roll edges. Usually includes edge geometry and cutting edge visual inspection, the edge to behind the buckling to prove that connected with no lack of fusion check.Ultrasonic testing and X ray examination have been applied abroad.Destructive detection. Tensile test, bending test and tensile creep test are carried out at the interface respectively.3, hot melt docking notes:The procedures for the use of the docking machines and the matters needing attention shall be observed;Operators must wear gloves, wear overalls, do a good job of self-protection, to avoid electric shocks or burns;Heating the surface of the board, and the connecting ends should be kept clean:Docking pressure should be adjusted to the actual needs of the site:Polyethylene pipes shall not be heated by open flame;The welding interface to protect from sand and rain hit.
Is the first set of fused fittings in the pipe, and then use the parameters of welding machine according to the provisions of the (time and voltage) to the electric melting pipe is energized, the outer surface of the inner surface of the pipe and melting electric melting pipe electric heating wire embedded in the insertion end, after cooling pipes and fittings that are fused together. The utility model is characterized in that the connection is convenient and quick, the quality of the joint is good, and the interference of the external factors is small, but the price of the electric melting pipe fittings is several times to several times of the ordinary pipe fittings (the smaller the caliber is, the greater the difference is),
