[TheForge] Re: Burning Metal

Tue Nov 4 08:09:00 2003

Charles,  A burning bar or rod is similar to a oxygen lance but a little
different.  The lance which is the plain steel pipe as you say works mostly
by cutting / burning action of the steel it is cutting through.  A burning
bar on the other hand consumes itself and the steel wires inside to both cut
and produce a high level of heat through its own exotermic reaction.  That
is why they will cut through all types of things.  With steel, they cut,
with other material they melt.  It is a messy cut.

We used to have a contractor who did lancing -- using your oxygen lance to
cut through very large backup rolls for plate rolling mills.  These rolls
were too big to scrap as one piece (80 inches in dia. 40 feet long, 500,000
plus pounds) so we had them cut up at the end of their useful life.
Contractor arrive with tank trucks of liquid O2 to do this job.  Major red
cloud of iron oxide generated from the cutting.

Dave Smucker

----- Original Message ----- 
From: <[email protected]>
To: <[email protected]>
Sent: Monday, November 03, 2003 11:15 PM
Subject: Re: [TheForge] Re: Burning Metal

> We always called this an oxygen lance.  You can achieve the same thing
> with plain steel pipe and O2 as I recall.
>
>
> Charles
>
> David E. Smucker wrote:
>
> >Oxygen burning rods (or burning bars) will burn through (melt) damn near
> >anything including concrete.  What they are a hollow steel tube filled
with
> >a pack of steel wires.
> >
> >
> >
>
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