[TheForge] why doesn't cast iron oxidize and burn in the sameway?

[peter fels & phoebe palmer]

Sometimes i fantasize carving massive blocks of steel with an oxy lance.
Be neat to watch that Dave...once or twice.

On 11/3/2010 4:31 AM, David E. Smucker wrote:
> When we had very large plate mill backup rolls that need to be scraped it
> was cheaper to bring in a special contractor to cut them up on site and ship
> the chucks to the scrap yard.  Total roll weight was over 400,000 pounds.
> (220 inch wide aluminum plate mill).
>
> The contactor used tank trucks of liquid O2 and an O2 lance.  Generated a
> large orange cloud of smoke (iron oxide).  They did one at night and a
> neighbor reported to 911 that a airplane had crashed at the plant site.  The
> cutting was done outside.
>
> Dave Smucker
> Brasstown, NC
>
> --------------------------------------------------
> From: "Andy Gladish"<gladish at cablerocket.com>
> Sent: Tuesday, November 02, 2010 11:30 PM
> To: "Blacksmithing List Sponsored by ABANA"<theforge at mailman.qth.net>
> Subject: Re: [TheForge] why doesn't cast iron oxidize and burn in the
> sameway?(was: oil/wax finish, blackened steel)
>
>> Just like when cutting, you can back way off and the O2 jet will keep
>> cutting, even thought the preheat cones are too far from the work to do
>> much
>>
>> -----Original Message-----
>> From: Jerry Frost
>> ...you could shut off
>> the acet once the steel began cutting and the burning steel did all the
>> work. I've never heard of it anywhere else so can't say how true it is.
>>
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