[simpits-tech] Rack mount Computer System

[Marv De Beque]

I think it is a form of soldering, but you battle the same problems as with
welding.  Oxides form so quickly that you can't get a good joint.  Again, a
stainless steel brush would help.  The secret is with the metal preparation.

Also, the proper torch (propane or butane?) and temperatures are critical.
I think oxyacetylene is a big no-no.


On 8/11/03 1:37 AM, "Rob Hommel" <rhommel@tacoma.net> wrote:

> Chris:
> 
> Gene and I have some of this stuff in the shop. Our early experiments with
> it were less than satisfactory. We blamed it on the torch used at the time.
> I saw the stuff demonstrated at a county fair or something and thought aha!
> eureka! and several other exclamations. His skill with the stuff was
> astonishing.He even welded a Pepsi can with it. My skill with it was
> considerably less by several  orders of magnitude.
> Gene who did not watch the demonstration was less impressed than I was about
> it.
> 
> I would like to believe that it works but, I have not found another use for
> it at this time. It is relatively inexpensive, go for it. When I find time I
> will play with it again.
> 
> Keep 'em Flying
> Rob Hommel
> ----- Original Message -----
> From: "Chris Brace" <chris@renovo.co.nz>
> To: <simpits-tech@simpits.org>
> Sent: Sunday, August 10, 2003 12:25 PM
> Subject: RE: [simpits-tech] Rack mount Computer System
> 
> 
>> For quite some time I've wanted to get aluminium welded for various
>> small parts for my 'pit projects but without finding a good solution. I
>> did a bunch of research and found this stuff called techo-weld
>> (http://www.techno-weld.com/). Looks and sounds pretty straight forward
>> and even easy for the hobbiest to do on a modest budget.
>> Anyone using this stuff? Comment appreciated.
>> 
>> Cheers
>> Chris
>> 
>> 
>> 
>> -----Original Message-----
>> From: simpits-tech-admin@simpits.org
>> [mailto:simpits-tech-admin@simpits.org] On Behalf Of Andreas Fransson
>> Sent: Monday, 11 August 2003 4:17 a.m.
>> To: simpits-tech@simpits.org
>> Subject: Re: [simpits-tech] Rack mount Computer System
>> 
>> 
>> What everyone else said, and special note about the brush part. The main
>> reason alu welding "goes bad" is because of oxides. Another thing to
>> note is that heat spreads A LOT faster in alu than steel, so ALWAYS use
>> gloves or tools when handling the material or you'll lose some skin real
>> fast. ;)
>> 
>> /Andreas
>> 
>> 
>> 
>> From: "Marv De Beque" <mdebeque@woh.rr.com>
>>> Yup.  Also, use a stainless steel wire brush right before you weld.
>>> Aluminum oxidizes faster than a New York cabbie looses his cool.
>> 
>> 
>> 
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