Cracks appear in stainless steel TP321
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Reduction in diameter of the vacuum condenser. The reason for this situation is……
What are the diameter variation, wall thickness, as well as the medium, temperature, and pressure inside? How long did it take for cracks to appear? Such direct penetration results in no significant shaping deformation; it is a brittle fracture. Possible cause 1: Stress corrosion cracking. 2. Fatigue. Problems arising from manufacturing lead to cracking during service. I lean more towards the second option. Looking forward to the truth! ! ! !
The possibilities are listed on the 4th floor; I also think fatigue is the most likely cause, as stress corrosion cracking usually results in cracks that are perpendicular to the welds. This device isn’t very well made; the welds look terrible: lol
273 becomes 114, with a thickness of 7 millimeters; the temperature is around 70 degrees, and it operates in a condition of extreme vacuum for 2.5 years.
I haven’t found the reason yet. I would like to consult an expert in this area
Excessive vibration, due to equipment or installation issues