Straight Seam Pipes
In these tubes, the sheet is first shaped as a pipe, and then the seam is joined by welding.
1. Seamless pipes for sheet welding without electrodes (ERW): Pipes are generally made from 1.8 "to 24" in size. The raw material is the coil rolled sheet, which is formed by special rollers after opening from the crankcase, where the edges of the joint are passed through the electric field to create resistance and produce fused heat and fused to it. The method, which covers a wide range of pipes, is called electric resistanceweld or high frequency inductionweld.
2 - Welded Sheet Welded Tube with Electrode (DSAW): In this method, the raw material is PLATE, shaped like a pipe and then welded together with the electrode, and for the welding of molten materials. The electrode is protected by a special powder that is referred to as sub-powder welding (SUBMERGE. Arc.weld) and may be replaced with a neutral gas such as co2 or argon instead of the powder by which gas metal The arc weld, they say, is usually manufactured in sizes 20 "and above, and is manufactured in two ways: Longitudinal seam welded (Longitudinal.seam. weld): In this method, the sheets are welded. Word needs dimensions equal to the length of the pipe and the width equivalent to the pipe's circumference and then frozen along its length and form with the u & o or roller bending or press bending machines to form the pipe and the seam. The pipes are welded to the inside and out by special automatic devices, which may have one or two weld seams.
1. Seamless pipes for sheet welding without electrodes (ERW): Pipes are generally made from 1.8 "to 24" in size. The raw material is the coil rolled sheet, which is formed by special rollers after opening from the crankcase, where the edges of the joint are passed through the electric field to create resistance and produce fused heat and fused to it. The method, which covers a wide range of pipes, is called electric resistanceweld or high frequency inductionweld.
2 - Welded Sheet Welded Tube with Electrode (DSAW): In this method, the raw material is PLATE, shaped like a pipe and then welded together with the electrode, and for the welding of molten materials. The electrode is protected by a special powder that is referred to as sub-powder welding (SUBMERGE. Arc.weld) and may be replaced with a neutral gas such as co2 or argon instead of the powder by which gas metal The arc weld, they say, is usually manufactured in sizes 20 "and above, and is manufactured in two ways: Longitudinal seam welded (Longitudinal.seam. weld): In this method, the sheets are welded. Word needs dimensions equal to the length of the pipe and the width equivalent to the pipe's circumference and then frozen along its length and form with the u & o or roller bending or press bending machines to form the pipe and the seam. The pipes are welded to the inside and out by special automatic devices, which may have one or two weld seams.
