A105 flange

A105 flange can also be called forged flange, steam pipe flange and plate A105 flange, which are used to connect carbon steel pipes. The nominal pressure shall not exceed 2.5 MPa. The connection method of A105 flange includes single-sided welding and double-sided nut connection. During welding, only single-sided welding is required. It is not necessary to connect the inner hole of welded pipe with the flange commonly used for low pressure and medium pressure pipes

According to the motion mode of the forging die, A105 flange forging can be divided into ring rolling, rotary forging and cross rolling; Precision forging can also adopt rotary forging and ring rolling. Some complex forging processes are completed by one or more processes in order to improve the utilization rate of heat treatment

A105 flange forging can be divided into free forging and extrusion. Generally, the unheated area at room temperature is called cold forging, and the crystallization temperature area is called hot forging. When A105 flange is forged at low temperature, the change of forging size has little effect. Forging below 700 ℃ will not decarburize the flange surface. The advantage is that even if the forging force is small compared with the forging size, it can also be formed

During processing, A105 flange will extend from near the die surface to the free surface, which is difficult to protect. Under low forging force, products with complex shape and good precision can be obtained. Therefore, in order to process products well, the moving direction of forging dies and the rotary forging process are controlled by computers, such as the forging of large and various large turbine blades produced and operated by enterprises

A105 flange features:

A105 flange is a movable flange. In fact, the flange is sleeved on the pipe end with steel ring, flange, etc. In this way, the flange can be moved on the pipe end. The flange or flange steel ring is usually used together with the fittings of water supply and drainage pipes. When the manufacturer leaves the factory, flanges are designed at both ends of the expansion joint, and bolts are directly used between the pipeline and equipment to establish contact

A105 flange not only saves space and weight, but also confirms that the joint does not leak and has good sealing performance. Then, replace the flange gasket sealing ring to confirm that the sealing surface matches the sealing surface. As the force area of the forging decreases, the size of the compact flange can be reduced because the diameter of the seal ring decreases, so the cross section of the seal working face decreases continuously. In this way, only a small pressure is required to compress the sealing surface. With the decrease of pressure, the size of bolts and the number of bolts required are reduced accordingly, so as to design lightweight products

A105 flange has good quality. The main standards are national standard, electrical standard, German standard, American standard, Japanese standard, etc; The main materials of flanges are carbon steel, alloy steel and stainless steel; The main performance stabilization treatment is oiling and galvanizing. A105 flange has good pressure resistance and temperature resistance, and is usually suitable for high pressure and high temperature working environment