Bend plant, the bending processing plant, bending, U-shaped bend Cangzhou Hongyuan Pipe Industry Co., Ltd. is a steel sales and pipe fittings as one large integrated enterprise. The company is located in the pipeline equipment industry in China to create the base - Hebei Yanshan. East of Huanghua Bohai Sea, north of Beijing and Tianjin, superior environment and convenient transportation. Bend plant, bending processing plant, bending, U-shaped bend of the company mainly engaged in a variety of materials pipe: 304,304 L, 316,316 L, 321,310 S ,18-8, 16Mn, 20 #, 20G the 12Cr1MoVG, P91, 10CrMo910, 15CrMo product quality: have passed ISO9001 international certification, pressure vessel manufacturing license. The elbow size is determined by the diameter, the bending angle and bending radius of the three. The bending angle is determined according to the drawings and the actual situation of the construction site, and then the system model, still plate simmer the press model check simmer Tube bending angle meets the requirements. Model available round simmer, the diameter of the round is selected according to the size of the diameter simmer 10-14mm can be. The bending radius of the bend should diameter size, the design requirements and the relevant provisions. Neither too large, too small virtual end of the election. Because the bend radius is too large, not only with the material, and pipe bending the portion, this will give pipefitters difficult; bending radius of the election is too hour the elbow back wall thinning due to excessive elongation its strength reduced, while the side wall is compressed in the elbow formation of wrinkles state. General provisions: the heat simmer bend bending radius should be not less than 3.5 times the outer diameter of the pipe; the cold simmer pipe bend radius should be not less than 4 times the diameter of the pipe; welding elbow bend radius should be not less than pipe diameter 1.5 times; stamping elbow bend radius should be not less than the outside diameter of the pipe.