Cangzhou Bohai Pipe Co., Ltd. specializes in manufacturing up to 20 # flange planar large-diameter flange of the amount of the application, the other two methods of large-diameter flange in use is relatively common. Large-diameter flange includes a wide variety of types and models, welded steel flanges welded counterparts for flange and pipe 20 # flange DN800, mainly used in welding technology in vessel 20 # flange, showing good use of features and performance , reasonable structure, greater strength and stiffness, and can withstand high temperature and pressure, and repeated bending and temperature fluctuations, reliable sealing, nominal pressure of 0.25 ~ 2.5MPa use of large-diameter flange sealing surface irregularities. Large-diameter flange main application environment is suitable, depending on the situation to determine the need to ensure that the specific use of rolled flanges value and performance, withstand high temperature and pressure. Cangzhou Bohai Pipe Co., Ltd. specializing in the production of 20 # flange forging forging process generally consists of the following steps, namely select lower quality steel material, heating, forming, cooling after forging. The process of forging free forging methods, forging and mold forging. Production, according to the size of the forging quality, the number of forging choose different methods of production volume. Free forging low productivity, large allowance, but simple tools with neck flat welding flange 20 #, versatility large, it is widely used in forging the shape of a relatively simple one-piece, small batch production of forgings. Free air hammer forging equipment, steam - air hammer and hydraulic machines, respectively, for small, medium and large forgings production. Forging high productivity, simple operation, easy to implement mechanization and automation. Forging high dimensional accuracy and low mechanical allowance, forging a more reasonable distribution of fibrous tissue, can further improve the service life of the part. 20 # flange DN800,20 # flange, Cangzhou Bohai Bohai Sea by Cangzhou Pipe Co., Ltd.. Cangzhou Bohai Tube Co., Ltd. (www.czbh628.com) (www.hbbh628.com) strong, credible, three-way, etc. Hebei Cangzhou accumulated a large number of loyal customers. The company better work attitude and constantly improving Cangzhou Bohai innovative ideas will lead into the brilliant and you work for a better future!