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Demagnetize a Railcar
We have a 55 ft. long open top gondola railcar that is magnetized. We suspect that these cars are loaded and unlaoded with scrap metal using magnetic cranes, hence the magnetism in the car. Our problem is that we need to repair weld some structural members on the car and the magnetism causes...- dynopepticman
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- Replies: 6
- Forum: Magnetic engineering
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Post Weld Heat Treatment as a PQR Essential Variable
I have noticed a difference among certain codes regarding welding procedure qualification and post weld heat treatment as an essential variable. Some codes, such as AWS D15.1 state that any "addition, deletion or change" to PWHT requires requaification of the procedure. Other codes...- dynopepticman
- Thread
- Replies: 2
- Forum: Welding, Bonding & Fastener engineering
