[TowerTalk] How do you separate aluminium tubes that are stucktogether ?

[AD5VJ Bob]

If you will heat the outer pipe with a propane torch abt 6 inches from where the inner pipe stops inside the outer pipe, the outer
pipe will heat faster and will expand at a faster rate. If you heat at the joint there will not be enough heat differential to make
enough difference for proper expansion of the outer tube.

When you hold the tubes make sure whatever you hold them with will not mar them. If you apply the heat properly you will not twist
them enough to hurt them. They will come apart fairly easily.

When you put them back together use a aluminum doping on the joints, so it doesn't happen again. 

  73 fer nw es gud DX,
QSL VIA: BUR, LotW, e-QSL
Bob AD5VJ(AAR6VM)
Old calls: WY5L/KH3-KE5CTY-N5IET
http://www.ad5vj.com/

Member: CTDXCC, NTCC, STXDXCC
FISTS: # 12637, SKCC# 2369
10X# 37210, FP#-1141
SMIRK#-5177, RARS #-149

 



> -----Original Message-----
> From: towertalk-bounces at contesting.com 
> [mailto:towertalk-bounces at contesting.com] On Behalf Of John W2iD
> Sent: Wednesday, November 29, 2006 9:55 AM
> To: towertalk at contesting.com; g3rzp at g3rzp.wanadoo.co.uk
> Subject: Re: [TowerTalk] How do you separate aluminium tubes 
> that are stucktogether ?
> 
> How about wrapping the smaller/inner one with a blanket 
> filled with ice cubes, while simultaneously hitting the 
> larger/outer one with a hot hair dryer or propane torch?  
> (And use two people, each wearing those thick heavy duty 
> rubber gloves for extra grip and as thermal insulation, 
> especially if you use a torch.) 
> 
> Getting the temperature of the two pieces as far apart as 
> possible will get you as much bonus wiggle room as there is to get.
> 
> John
> W2 Interesting Dilemma
> 
> > 
> > ---- Original message ----
> > >Date: Wed, 29 Nov 2006 15:02:18 +0100 (CET)
> > >From: Peter Chadwick <g3rzp at g3rzp.wanadoo.co.uk>
> > >Subject: Re: [TowerTalk] How do you separate
> > aluminium tubes that are stuck	together ?  
> > >To: Robert Thain <g0hgw at yahoo.com>,
> > towertalk at contesting.com
> > >
> > >>How do you separate aluminium tubes that are stuck
> > together ?<
> > >Heat, hit with hammer, attempt to twist. Keep doing
> > this until they part. Cursing might ease your feelings a bit during 
> > the exercise, which can be quite lengthy - it won't separate the 
> > tubes, though.
> > >
> > >73
> > >Peter G3RZP
> > >_______________________________________________
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