Cangzhou Bohai Pipe Co., Ltd. specializes in manufacturing large flange # 20 large flange is a disk-shaped parts, in the pipeline project, the most common flat welding 20 # flanges, are used in pairs. In the pipeline project 20 # flange DN100, flanged mainly used to connect pipes in the pipeline need to be connected, and a variety of mounting a flange 20 # flange, low-pressure pipe flange can be connected using wire, 4 kg more than the use of a pressure welding flanges. Between the two flange seal point, then bolted. different pressures have different flange thickness and use different bolts pumps and valves and pipe connections at local these facilities and equipment, also It made corresponding flange shape, also known as the flange connection. All in two planes using bolted connections at the same time in neighboring closed parts, generally referred to as 'flange', such as ventilation pipe connections, this type of Parts can be called "flange parts' Cangzhou Bohai Pipe Co., Ltd. 20 # flange forging a professional, fundamental freedoms forging process: the free forging, forging shape is deformed by some of the basic steps of the blank gradually forged. The basic steps are free forging upsetting, stretching, punching, bending and cutting and so on. 1. upsetting upsetting is the original blank axially forging to highly reduced during the operation of the cross-section increases. This process commonly used in forging gear blanks and other disc-shaped forgings. All upsetting upsetting divided into partial upsetting two. 2. Stretching Stretching is to increase the length of the blank, forging cross section reduction step is usually used to produce shaft in blank, such as lathe spindles, connecting rods. 3. perforating punch in the blank out of the through-hole or blind hole of the forging process. The bending the blank bent into a certain angle or shape forging process. 5. reverse a portion of the blank relative to the other portion of the rotating angled forging process. 6. The cutting or removal of the blank forging steps split feed head. 20 # flange DN500_20 # _ Cangzhou Bohai Flange Co. provided by Cangzhou Bohai tube. 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!