In the actual production and development of the selection of different methods and processes for production and production, according to the method and principle of the process, for different stages can produce important value and role, in the actual production to add adaptive elements, so as to increase the advantages of carbon steel flange, reflect good use characteristics and value.
Some friends are more curious about its molding process, so how does it have a flat and beautiful shape? Next, let’s talk about the casting method of carbon steel butt welding flange.
Carbon steel butt welding flange casting method
Butt welded flanges can also be called forged flanges, steam pipe flanges and plate butt welded flanges, used to connect carbon steel pipes, nominal pressure shall not exceed 2.5 mpa, butt welded flanges do not need to weld the hole in the pipe and the flange commonly used in low pressure and medium pressure pipes
According to the movement mode of forging die, the forging of butt welded flange can be divided into ring rolling, rotary forging and cross rolling. Precision forging can also use rotary forging and ring rolling. Some complex forging processes are completed by one or more processes to improve the utilization of heat treatment.
According to different casting methods, we can divide their forming process into two kinds of free forging and extrusion, the area of room temperature is not heated cold forging, the crystallization temperature area is called hot forging, low temperature forging on the welding flange, the change of forging size has little impact, forging below 700℃ will not decarbonize the surface of the flange
The advantage is that even if the forging force is small compared to the forging size, it can be formed. During the processing, the carbon steel butt welding flange will extend from near the die surface to the free surface, which is difficult to ensure accuracy.
Therefore, in order to better process the product, the direction of movement of the forging die and the rotating forging process are controlled by the computer.
In addition, it can also be used in some non-fixed areas, generally using steel rings to cover it at the end of the pipe, when the manufacturer leaves the factory, the expansion joint is designed at both ends of the carbon steel butt welding flange, and the direct contact between the pipe and the equipment is established with bolts
Butt welded flange not only saves space and weight, but also ensures that the joint does not leak, sealing performance is good, and then replace the flange gasket sealing ring, about explaining the casting method of carbon steel butt welded flange is explained here, what want to consult, you can call our Mingjian customer service phone, we will have special personnel to answer for you
