[modeleng] Re: Torches & Boilers
- From: Allen Messer <al_messer@xxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Sun, 8 Jan 2006 18:26:18 -0800 (PST)
O.K.---I am in need of instruction---desperately.
What size Propane torch/torch head is recommended for
Silver Soldering/Brazing a seamless Copper tube, app.
5 inches in diameter with a wall thickness of app.
.120"? My little Bernz-O-Matic Oxy-Propane torch
won't begin to put out enough heat to do the job.
Plus, the Oxygen cylinders are only good enough for a
7 minute burn time.
Al Messer
--- Harry Wade <hww@xxxxxxxx> wrote:
> At 11:14 PM 1/8/06 -0000, you wrote:
> >I agree, I use oxy/acetylene and a soft flame does
> a far better job. - I.P.
>
> Gents,
> "Soft" flame was never a part of the question,
> that's a given, I use
> soft flame and that can be had from various heating
> tips. The question was
> about using a "cutting" head for boiler building as
> opposed to a heating
> tip. I'm not worried about experienced folks, but
> the cutting torch
> implied to me exactly what Al mentions, the
> potential for someone not
> experienced with oxy/acetyl gas and equipment,
> ESPECIALLY the cutting
> torch, to accidentally incinerate hours of work. I
> still don't disagree
> necessarily, but I'm not prepared to recommend to
> potential boiler builders
> who come to me for advice that they disregard
> heating tips in favor of a
> cutting head until I've satisfied myself that it is
> in fact a better
> alternative. In fact I don't recommend using
> oxy/acetyl at all if adequate
> propane gear is available.
>
> Regards,
> Harry
>
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