EFW Weld(ERW Steel Pipe)

EFW weld, a process in which metal is heated by one or several consumable electrodes and the workpiece to heat the metal. The arc melts the metal and the filler material sufficiently, without the need for pressurization, filling the metal part with work. All from the electrode. Operation process of carbon steel pipe is as follows:` In accordance with the requirements of the operation of the fused welding machine wire, set the correct welding parameters of electric welding, you can use manual or automatic two input methods.a Check correct, start the fused welding machine, enter the welding process, when the welding time, the machine will automatically enter the cooling state.b When the mild steel pipeis completely cooled, remove the fused welding machine.c With a plastic pipe cutter or cutting device with a fine tooth saw cut the pipe, and its end perpendicular to the pipe axis. Use a knife to cut the inner edge of the hairs, in the pipe or socket-side welding area scraping, clean up the welding area.d Be possible to use a special fixture to connect the components to be fixed, the welded steel pipe roundness should not exceed 1.5% of the pipe diameter, or should be corrected in the corresponding fixture. Pipe and fittings should be suitable for the gap, generally with a micro-power insertion is appropriate, the gap is too large or too small will affect the quality of the interface. Check the depth of insertion, slide the socket fitting into the socket end and position it correctly.