The use of PE pipe electric melting is also a connection technology,which ensures the normal construction and use of pipes that meet the requirements during use.For the construction process of electric melting of PE pipes,it will give everyone a certain understanding,so that if you use it in your daily life,you can also have a better understanding.
1.Clean the inner and outer surfaces and end faces of the PE pipe joint,and it is recommended to use a specialized non-metallic pipe cutter for processing.The cleaning length should be greater than the length of the inserted pipe fitting,and the pipe end should be cut flat;Ensure that the aging layer and contamination layer on the outer surface of the joint are completely removed.The blade of the special planer is serrated,and a thin layer of the outer surface(fusion surface)of the PE pipe joint should be scraped off with a special tool.After disposal,the outer surface of the pipe joint will form fine thread like circumferential scratches,which should be sealed and packaged with plastic film.
2.Because the pipes are usually sealed in plastic bags.And use pipe clamps to fix the welding joints to prevent eccentricity or vibration damage to the welding fusion.The pulling depth of each joint is the length from the pipe socket to the internal protrusion,and a gap of 510mm should be left between the joint and the protrusion.
3.If the PE pipe joint cannot be welded immediately after planing to prevent secondary pollution.Before welding,the outer surface of the pipe joint should be wiped with a cleaning tissue provided by the manufacturer.If the joint after disposal is left for a long time,it is recommended to remake the joint during formal connection.Considering that planing reduces the thickness of the pipe wall,it is recommended to cut off the original planed joint when remaking it.It should be opened before use,and the inner surface of the pipe fittings should also be wiped with the same cleaning tissue before use after opening.
4.Insert the two processed pipe joints into the fitting to prevent the expansion and elongation of the pipe joints during welding heating from pushing each other and damaging the fusion surface.Mark the insertion depth on each joint.Start the welding equipment.
5.Connect the welding equipment to the electrode of the pipe fitting and input the welding heating time.Start welding until the welding machine stops heating at the set time.Generally,each pipe fitting comes with a card that records the required technical parameters such as heating voltage,heating time,cooling time,etc.Generally,there are two plastic buttons of different colors on the pipe fittings,which will gradually jump up during the heating process.When the heating time is halfway through and the heating is almost complete,the button will completely jump up to indicate that the heating process is about to end.After the heating process is completed,it takes a few minutes for the outer surface temperature of the pipe clamp to reach a certain height.Then,the welding joint can be allowed to cool down.During this period,it is strictly prohibited to move or vibrate the PE pipe,mainly because the thermal conductivity of the PE pipe is not high,and once touched,it is very easy to cause burns.
The introduction in the article has clearly marked the matters that need to be followed in all aspects of PE pipes,so that you can have a clearer understanding during use,and the connection effect after construction can be firm and tight.