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Preparation and operation steps of PE hot melt machine before use
Nov 16, 2018

Before using the PE hot melt machine, it is necessary to do the relevant preparation work, mainly to check whether the welding machine condition meets the working requirements. For example, check whether the fasteners in various parts of the machine are loose or loose; check whether the electrical connection of the whole machine is correct and reliable; check whether the hydraulic oil in the hydraulic tank is sufficient; confirm that the power supply matches the input requirements of the machine; whether the heating plate meets the requirements; Trial operation of milling cutters and oil pump switches, etc.


Then insert the slips with the same pipe specifications into the rack; set the temperature of the heating plate to the soldering temperature, and wipe the surface of the heating plate with soft paper or cloth alcohol before heating. PE hot melt machine welding should be operated according to the parameters of the welding process card. When necessary, it should be appropriately adjusted according to changes in weather, ambient temperature, etc.


The specific step is to place the pipe in the frame slip, so that the length of the two ends is equivalent, and then fastened with the slip. First turn on the power switch of the milling cutter, then slowly close the welded ends of the two pipes and apply appropriate pressure until there are continuous chips at both ends. Remove the pressure, wait a moment, then exit the movable frame and turn off the power to the milling cutter.


Take out the milling cutter, close the two ends and check the alignment. Measure the drag force, this pressure should be superimposed on the process parameter pressure to get the actual use pressure; and check if the heater plate temperature reaches the set value. After the temperature of the heating plate reaches the set value, it is placed in the frame and a predetermined pressure is applied until the minimum curl on both sides reaches a predetermined width, and the pressure is reduced to a predetermined value to absorb heat. After the time is reached, the movable frame is retracted, the heating plate is quickly taken out, and then the two pipe ends are closed. The switching time should be as short as possible and cannot exceed the specified value. After cooling to the specified time, the pressure is released, the slips are released, and the connected pipes are taken out.

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