Operation requirements of high temperature flange and high temperature sealing
In the operation of high temperature flange, the parts often need to be flat high temperature sealing, in the operation without good sealing in the separate pressure area, in the operation, which will directly cause the production or deformation, that is, in the separate pressure area leakage under pressure, which requires unplanned repair. The best application of high temperature plane sealing is Bocos high temperature sealant. Its special formula makes it remain inert in the standard application of steam and gas turbine and high temperature flange, so it can withstand hot air, steam, water, light fuel oil and lubricants, and can be resistant to crude oil and natural gas.
High temperature flange is very suitable for the high temperature and pressure requirements of the smooth and smooth sealing surface. In the operation, a plaster knife or rubber scraper is used to spread it on the dry surface. Because the sealing product will not solidify, but its consistency will change slightly, maintain flexibility and elasticity, so there is no time requirement in use, the construction can be immediately put into operation, without waiting. To repair the high temperature sealing surface with scratch damage, it should be used in conjunction with Bocos high temperature F series repair products.
The blank shape and size of the high temperature flange is accurate, the processing capacity is small and the cost is low, the internal organization of the whole product is poor, the forged flange is generally lower in carbon and not easy to rust, the forging streamline is good, the organization is relatively dense, the mechanical performance is better than the casting flange.
In the process of making the high temperature flange, if the forging process is improper, so there will also be a large or uneven grain, hardening crack phenomenon, the forging cost is higher than the casting flange. The forging can withstand higher shear and tensile forces than the casting.
The advantage of high temperature flange can make a more complex shape, the cost of the whole product is relatively low, the forging advantage lies in the internal organization uniform, there is no casting in the casting, inclusion and other harmful defects, from the production process difference casting flange and forging flange, such as centrifugal flange belongs to a kind of casting flange.
