Cangzhou Bohai Pipe Co., Ltd. specializing in the production of forged flanges 20 # First, we need to understand how to produce centrifugal flanges are made, centrifugal casting making welded flange process method and product build 20 # flange, characterized in that the product processed through the following process steps: ① selected raw steel into the melting furnace, the molten steel temperature reaches 1600-1700 ℃; ② the metal mold preheated to 800-900 ℃ constant temperature; ③ start centrifuge, will step ① Step ② the molten steel into the preheated mold; ④ casting natural cooling to 800-900 ℃ holding for 1-10 minutes; ⑤ water-cooled to near room temperature for 20 # flange, remove the casting mold release. Cangzhou Bohai Professional production of 20 # flange tube sheet tube sheet, is in the steel drill pipe diameter and the same hole, the pipe penetration weld the fixed, since such an accessory role. In the calculation of the fixed tube plate temperature difference according to various operating conditions to calculate the axial stress case, the pull-off force of the axial stress of heat transfer tubes, tube to tube sheet between q, one can not meet When the intensity (or stable) condition, you need to set the expansion joint. In the fixed tube plate strength checking calculations, when the tube plate thickness is determined, no expansion joints when sales 20 # flanges, tube sheet strength sometimes is not enough, let swell Festival, tube sheet thickness may meet the requirements. In this case, you can set the expansion joint to thin tube sheet, but from material consumption, ease of manufacture of a comprehensive assessment, safety and economic effects may be. Fixed tube sheet heat exchanger is commonly used in U-type expansion joints welded 20 # flange, it has a compact structure is simple, compensatory good, cheap, etc. manufacturers flange 20 #, 20 # flanges, Cangzhou Bohai Sea by the Cangzhou Bohai Pipe Fittings Limited. 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!