General > General Technical Chat
australia nuclear easter egg hunt?
coppercone2:
I love the 10mm socket analogy. I could see Burke from Aliens saying that one. ;D
Look, that facehugger I took is just like rescuing a little souvenir..... sorry I forgot to tell you guys about it, just totally slipped my mind ok?! don't be a cop, its cool man, happens all the time.
SL4P:
--- Quote from: vk6zgo on January 28, 2023, 11:52:51 pm ---It's not a dirt road, but a perfectly good sealed one, so it will almost certainly be along the edge of the road somewhere
--- End quote ---
There’s an assumption of facts that leads to this point.
What if the sample was never in or on the truck, wrapped up with the lunch room leftovers on its way to the sewer outfall on the coast…
BravoV:
The Brits are far more crazier ... when it comes to radioactive and bolt ... >:D
-> Nuclear security alert after botched attempt to fix £88m Trident submarine with super glue
Quote .. "Navy chiefs last night ordered an investigation after workers on a Trident sub risked disaster — by gluing broken bolts in a nuclear reactor chamber." >:D :-DD
coppercone2:
Looks like those stupid bolt extractors have a use after all.
https://www.grainger.com/product/5VUC4?gucid=N:N:PS:Paid:GGL:CSM-2295:4P7A1P:20501231&gclid=EAIaIQobChMI8JHLvOby_AIVBpfICh1Mlg2vEAQYBSABEgJ-ovD_BwE&gclsrc=aw.ds
Might need some fancier drills for superalloy bolts. I bet they could not drill into it or something. Bet its seized superalloy. Might not be so easy to repair. But its bad if the super glue is just there for cosmetic reasons, meaning its either extremely light load bearing, or it was covering up a problem that had a redudent screw holding it together (i.e. cosmetic).
But given that this occured in drydock................................. no excuse. Every goddamn problem with a nuclear reactor has something to do with coolant.
So they should have removed the bolt, inspected the bore with a boroscope and measured it to determine if it made to spec, and if a meeting decided it was reasonable and the threads are not otherwise strained, put a new bolt, or drilled and reamed a new hole, threaded it and inspected it and logged the repair...
I can see that some explosives accident with a torpedo, a shock wave damages the cooling pipes that are not supported and then there is a reactor problem and adios muchachos. >:(
But also, those contractors are stupid as hell. That kind of repair can add hours to a repair time bill, if they were smart with the contract. Pretty involved to determine if a threaded hole is proper. Might be as simple as a non coated bolt was used and seized, meaning if it was investigated properly they might have found manufacturing/engineering/spec problems that caused the situation in the first place and uncovered a larger issue, or it was drilled in the wrong place and there was a slight alignment issue, or that it was threaded wrong, or there is incompatible materials. Rushing simple job = information fail.
If you want your contractor company to look good, don't focus on the cheaper price, because maintenance is also inspection/monitoring and it feeds back to quality. If you want your engineering company to look good, then listen to the maintenance workers that find problems.
https://knowledge.faro.com/Hardware/FaroArm_and_ScanArm/FaroArm_and_ScanArm/Measuring_Threaded_Holes
https://flexiblemeasuring.com/measure-external-internal-thread-pitch-diameter/
vk6zgo:
--- Quote from: SL4P on January 31, 2023, 03:11:29 am ---
--- Quote from: vk6zgo on January 28, 2023, 11:52:51 pm ---It's not a dirt road, but a perfectly good sealed one, so it will almost certainly be along the edge of the road somewhere
--- End quote ---
There’s an assumption of facts that leads to this point.
What if the sample was never in or on the truck, wrapped up with the lunch room leftovers on its way to the sewer outfall on the coast…
--- End quote ---
Its presence on the truck was checked with a Geiger counter, according to the news reports.
I really doubt there is a "sewer outfall" on the coast serving the Rio Tinto site.
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