[1000-Tianjin Pipe - Welded Pipe free presentation] "by cross-sectional shape classification (1) simple section steel - round pipe, square pipe, oval pipe, steel triangular, hexagonal steel, diamond steel, octagonal steel , semi-circular steel circular, other (2) complex section steel - equilateral hexagonal steel pipe, five plum-shaped steel, steel double convex, double concave steel, oval-shaped steel, conical steel pipe, corrugated steel pipe , steel case, other [Tianjin 1000-pipe - pipe introduction]. pipe production process Longitudinal production process is simple, high efficiency, low cost, rapid development strength spiral welded pipe is generally higher than the Longitudinal, 16mn pipe, the pipe can narrow the larger diameter pipe billet production, you can also use the same width of the billet production of different pipe diameters. However, compared with the same length of straight pipe joints, pipe weld length of 30 to 100%, and lower production rate. diameter or thick pipe, generally made of steel billets directly, but only a small pipe through steel thin-walled pipe welded directly on it. Then after simple polishing, drawing on it added: with steel welded pipe, pipe diameter of 305, so it's in the original high status not seamless pipe unwinding process raw materials - smooth - cutting and welding ends - Looper - Forming - Welding - both inside and outside bead removal - pre-correction - induction heat - sizing and alignment - Eddy Current Testing - off - water pressure check - pickling - final inspection (strictly) - - packaging - shipping. [1000-Tianjin Pipe - Welded Pipe production process introduction] Longitudinal production process is simple, high efficiency, low cost, rapid development Spiral Welded Longitudinal generally higher than high. Pipe can narrow the larger diameter pipe billet production, you can also use the same width of the billet production of different pipe diameters. However, compared with the same length of straight pipe joints, weld length of 30 to 100%, pipe diameter 102, and lower production rate. large or thick diameter pipe, steel billets generally made directly, but only a small pipe through steel thin-walled pipe welded directly on it. Then after a simple polished, brushed on it Supplementary: pipe is welded steel, so its position in the original pipe process is not seamless high raw material unwinding - flat - cut and welding ends - Looper - Forming - Welding - - inside and outside the bead removal - pre-correction - induction heat - sizing and alignment - Eddy Current Testing - off - water pressure check - pickling - final inspection (strictly) - Packaging - out goods. 16mn pipe, export processing (certification), 1000-pipe provided by the Tianjin Steel Pipe Co., Ltd. 1000-Tianjin Steel Pipe Co. (www.tjqre.com) (www.tjqre.com) is Tianjin, steel leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the 1000-pipe leadership with the staff warmly welcome all inquiries negotiations to create the 1000-pipe better future.