RE: [PSUBS-MAILIST] welding bobber

["Howell, Andrew" <Howell.Andrew@sysmex-europe.com>]

An old method was to thread both halves for you bobber and then heat it
a cherry red and run plumbers solder into the top of the thread. If the
thread is fin enough then this will hold and be pressure proof.

Rgds Andy 

-----Original Message-----
From: George Slaterpryce [mailto:gslaterp@hotmail.com] 
Sent: 05 April 2006 14:50
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] welding bobber

The J.B weld route is starting to look very very nice, especially for
such a 
non-essential piece

George Slaterpryce
----- Original Message ----- 
From: "John Gaertner" <jgaertner1@earthlink.net>
To: <personal_submersibles@psubs.org>
Sent: Wednesday, April 05, 2006 8:33 AM
Subject: Re: [PSUBS-MAILIST] welding bobber


> Do you have access to an oxy-acetylene gas set?
>
> If yes, you could either braze it together or use silver solder with
flux.
>
> Other options include JB-Weld it together.
>
> Good luck.
>
> John Gaertner
>
>
>
> -----Original Message-----
>>From: George Slaterpryce <gslaterp@hotmail.com>
>>Sent: Apr 5, 2006 8:15 AM
>>To: PSUBS Mailing List <personal_submersibles@psubs.org>
>>Subject: [PSUBS-MAILIST]
>>
>>I was attempting to machine the pieces for a metal "bobber" for my new

>>soft
>>ballast tank's water level indicator (Foam just gives at depth, so
that's 
>>no
>>good). The piece is essentially one piece 1cm in diameter 1mm thick
walls
>>and 1cm in length and another 5mm 1mm thick wall and 1cm in length
tube 
>>with
>>two 1cm diameter 1mm thick "washer" end caps with a center bore hole
of 
>>5mm.
>>
>>I can get the pieces machine out great, that's the easy part. I'm
trying 
>>to
>>weld them all together however and I end up with some really shitty 
>>looking
>>welds. I've never attempted to weld something so "delicate" before.
What 
>>I'm
>>trying to make here is a preasure proof bobber and the end product
should 
>>be
>>something like a hollow bearing.
>>
>>All my welding is done via stick arc welding.
>>
>>Any suggestions?
>>
>>
>>
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>
>
>
>
>
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