welding Welding shall be carried out in accordance with […]
welding Welding shall be carried out in accordance with the parameters of the welding process card. When necessary, it should be appropriately adjusted according to changes in weather, ambient temperature, etc. The main steps are as follows.
(1) Clean the dirt on both ends with a clean cloth. Place the tubing in the rack slips so that the length of the ends is equivalent (should be as short as possible, usually 25 to 30 mm, if the milling and heating requirements are met). If necessary, the outside of the pipe rack is lifted with the support so that the pipe axis is at the same height as the centerline of the frame and then fastened with the slips. See below.
(2) Insert the milling cutter, 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 activity. Rack, turn off the power to the milling cutter. The chip thickness should be 0.5~1.0mm, and the chip thickness can be adjusted by adjusting the height of the milling cutter. See below.