Hello folks, anyone ever use one of these. Strangely enough a lady in our welding art class showed up with one of these and asked if we could use it. She and her husband had owned a robotic welding business that was responsible for encasing spent fuel rods in stainless containers (I am assuming that this was the purpose for this tool) at the Trojan Nuclear Facility when it was decommissioned and she said that it was among the left-over tools from that endeavor. She had no further use for it and inquired if we could use it. Since the significance of this as a testing tool is a bit above my pay grade I am curious about it's uses and applications. About all I have of an understanding of it would be that it is for weld metal analysis of stainless steels to indicate ferrite level and thus hot-cracking susceptibility, etc.? Would love to hear a bit on the subject. Thanks in advance everyone and best regards, Allan
Now ,for the application that the device was being used for, the patented version would most likely not work as well as the one your student bought in to class because of the portability of the Magne-gauge that's shown in your OP even though the concept is very similar.
Now this gauge is more widely well known and is named the Severn gauge which was and still is used used extensively worldwide although just about all testing equipment is digital nowadays... Note, does the design look familiar???
It looks like a Magne-gage except it measures ferrite content as opposed to coating thickness that a Magne-gage measures instead... What you are showing is a sort of Magne-gage and I believe they used it to measure the thickness of the weld itself as well as the ferrite numbers although I could be wrong also.
Here's a very interesting method of measuring ferrite content from the distinguished Professor @ MIT Thomas Eagar which I'm sure you'll find just as interesting as I did:
It does look and operate just like the "banana Gauge" used to measure coating thinckness. Same principle, the magnetic force is measured to determine the thickness of the coating. I have one but don't use it, I always use the digital unit.
Ive only seen ferite numbers measured by an electronic unit also, never by hand like the unit in the OP.
Hello eekpod, I did seem to see a rather close parallel to thickness gauges and also seem to recall a mention of being able to calibrate this tool for measuring thicknesses of paints, metallic coatings, and other such things. The tool has a pouch with some calibration "sheets", unfortunately there were no instructions with it so I am at a slight loss as to it's exact use and other information. Appreciate your comments, kinda figured this might be a bit old school and outdated with our progression into a digital age, interesting all the same though. Thanks again and best regards, Allan
Hello Henry, it is so great to see you participating in the forum once again. I do realize that your battle is by no means over and wish you the best for a speedy and successful recovery. That all being said, I know that your response will require me to read just a tad bit of information to fully grasp what will be conveyed there and I do appreciate your thoroughness in typical Henry form.
This situation all came about in a rather interesting way, one of the ladies in our metal art class was in a partnership with her husband for a company some time ago that was responsible for setting up a system for robotically sealing in and protecting spent fuel rods (they apparently used some sort of stainless steel canister) at the Trojan Nuclear Facility. At the beginning of class she had mentioned this and told me that she had some video of this process, unfortunately she hasn't brought it in yet for us to see. Then last night she showed me this instrument and asked if we could use it here. Initially, I basically said that I really didn't know what it even was but if she would allow me to research it a bit that I would likely appreciate having it here for "show and tell" if nothing else. She essentially said that she had no use for it and that she would like for us to have it. So that's the story of how we came upon this and that's the reason for my inquiry. I would like to have the necessary information to properly describe it's use and importance relative to the welding industry, even if we never actually have a specific use for it.
Once again Henry I very much appreciate your response and now I'll have to get to reading some to see about grasping all of the information that you have included. Hope you are feeling better and stronger and look forward to much more commentary and information from you. Best regards, Allan
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You realize you answered a post dated 2012 right? That was 7 years ago. I'm sure they figured out what they needed before your 7 years after the post reply.
Hi Allan!
