OT? engineering document stating "use lubricant on aluminum threads"??

[i_r_machinist]

First off, this is a nuclear power plant and common sense is frowned upon, so I need to find some kind of "official" document from some "authority" that states that some form of lubricant should be applied to a straight thread on aluminum. IE, neolube, neversieze... The I&C proceedure for screwing on these caps does not specificly state this, so they are not doing it and galling the dogshit out of these. This is generating a tremendous amount of work for me and costing no telling what in replacement bodies and quasi-emergencies.
Thanks, and as always, have fun
i_r_

 

[TeachMePlease]

Show 'em this, or similar?

FAQ 5: Galling and its Control

 

[DDoug]

I have made custom wrenches for those xmitters.

Our people use them dry.

 

[i_r_machinist]

DON'T type in "justification for lubrication on" in google search. Wierd.
Teachme, I'll reference that and a .pdf from PemEnginnering on causes of galling that I found.
thanks
Digger, yes, I've made custom wrenches also. But if you will notice, the one in the picture has neversieze on it. It came out of the trainning lab. I asked an I&C tech about lube on this one and not the ones in the field and he couldn't answer. Hmmmm.
Thanks for the replies.
i_r_
https://www.pemnet.com/files/design_info/techsheets/Thread_Galling.pdf

 

[DDoug]

DON'T type in "justification for lubrication on" in google search. Wierd.
Teachme, I'll reference that and a .pdf from PemEnginnering on causes of galling that I found.
thanks
Digger, yes, I've made custom wrenches also. But if you will notice, the one in the picture has neversieze on it. It came out of the trainning lab. I asked an I&C tech about lube on this one and not the ones in the field and he couldn't answer. Hmmmm.
Thanks for the replies.
i_r_
https://www.pemnet.com/files/design_info/techsheets/Thread_Galling.pdf

Yes, I saw it...I'm not blind.

But I was trying to relate to you what our people (in a non nuclear world) doo....

Which is run them dry.

 

[Milland]

Ya' ain't blind, but ya' is redundant...

 

[Cyclotronguy]

I've been in your world and I know just what you're up against. In the same situation the Rx was to get the OEM rep to spec "nuclear grade" anti-seize. The same sort of scenario occurred with X-ray components from Machlett, vacuum components from Lesker; when the sales guys come round you bait them into an impromptu maintenance training session.

Nothing happens without an official change in PM protocols with buy-ins from people well removed from the nuts and bolts and well up the regulatory food chain.

And at the end of the day sometimes you just have to acknowledge: Not your monkey, not your circus.

 

[Bill D]

Couldn't unscrew the un-lubed cap? Is that why Texas shut down a reactor during a 20 year cold snap and froze people out?
Bill D

 

[woodchuckNJ]

I would think that if its AL to any other metal they would be using an oxide prevention paste so no galvanic oxidation occurs, that would also lube the part.

 

[4GSR]

Couldn't unscrew the un-lubed cap? Is that why Texas shut down a reactor during a 20 year cold snap and froze people out?
Bill D

Wrong reactor!!!! The one that went down is just east of me by about 75 miles as the crow flies...

 

[GregSY]

If you don't use lubrication, it'll make you go blind.

 

[BT Fabrication]

aluminum sucks, probably why they use stainless and have specifics on how its done.

 

[Cyclotronguy]

At issue is the world in which he is playing, in radiation fields, material science as we commonly know it is frequently "out the window"

 

[i_r_machinist]

We have a grade of neversieze called N-7000, which I think referes to the price per 1 lb can, that we use in rad fields, which was worked into our "Common Mechanical Practices" proceedure,that has been a life saver.
customer

 

[Forestgnome]

It looks as if those were anodized and it wore off in spots.