How to deal with the cracking of corrugated expansion joint for stainless steel bellows?
author：Omega hose | Release time：2018-08-31
Corrugated expansion joint accessories are often used in the installation of stainless steel bellows in daily life, but it can also be "sick", that is, cracking phenomenon. So, how do you deal with this situation? The following, bellows manufacturer technical personnel teach you a stainless steel bellows bellows bellows expansion joint cracking emergency solutions.
The cracking accident of corrugated expansion joint for stainless steel bellows occurred in the pressure test before the equipment was manufactured, which did not cause the secondary accident and greater loss. According to the relevant analysis and inference, the following technical countermeasures are taken on the basis of the original process technology.
1. The bellows expansion joint for stainless steel bellows and the corrugated expansion joints ordered in the same batch are scrapped.
2. It is suggested that the manufacturer of corrugated expansion joints for stainless steel bellows scrap the expansion joints ordered in each batch. It is suggested that the expansion joint should be scrapped.
3. It is suggested that the whole cylinder should be heat treated to eliminate the martensitic structure and welding residual stress.
4. Hydrochloric acid is strictly forbidden to be used in the formed pickling paste.
The above is the common treatment method for the failure of corrugated expansion joint of stainless steel bellows, which is very practical because it comes from production practice. Of course, there will also be a special case, which depends on experience
