Help: Repairing a leak in a heat exchanger, made of 15% molybdenum steel
Thread Content
There are leaks in other areas after welding; is there any solution?
Waiting for the original poster to announce the solution. Has the hydrogen been removed? CrMo steel is tricky!
It’s under discussion; I’m seeking advice from experts to find a good solution. In fact, all chemical manufacturing companies face this challenge
How was it welded? Is there no repair plan? Look at these photos; it’s confusing
Our company had a similar situation before; in the end, with no other choice, we simply replaced the equipment, using 12CrMoV material
Is it a high-voltage device? If it’s not a high-pressure adhesive, I think one could be used; I can’t remember its exact name. We used it in the slurry evaporator back then, and it worked pretty well!
First, dig a groove in the pipe wall, then weld it. I would like to ask what type of welding rod the manufacturer uses – is it mentioned in the pressure vessel quality certificate? Is heating needed to eliminate stress concentration?