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- Newsgroups: rec.railroad
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!torn!ryelect!cal
- From: cal@ee.ryerson.ca (Calvin Henry-Cotnam)
- Subject: Re: High Speed Rail Questions
- Message-ID: <1992Dec31.003527.11928@ee.ryerson.ca>
- Keywords: thermite rail welding
- Sender: news@ee.ryerson.ca
- Nntp-Posting-Host: eccles
- Organization: Ryerson Polytechnical Institute, Toronto
- References: <1992Dec30.032216.905@ee.ryerson.ca> <9o1LwB5w165w@1776.COM> <921230173224@cream.ftp.com>
- Distribution: na
- Date: Thu, 31 Dec 1992 00:35:27 GMT
- Lines: 23
-
- jbvb@ftp.com writes:
- >
- >At any rate, classic Thermite is powdered iron oxide and aluminum
- >filings (dust is better). You do need a fairly hot igniter to get it
- >going, but I've seen a torch used.
-
- By any chance, do you know what is used as a catalyst in the reaction?
- I could not remember in my original posting, and nobody's said yet.
-
- >It is still fairly widely used
- >for field welds, but I think most welding plant welds are made
- >electrically (butt welding as opposed to arc welding). I'm not sure
- >what length rail you can buy new, but I know a lot of RRs are still
- >pulling up old jointed rail, clipping the ends and welding long strings.
-
- I do believe that it is still widely used in the field as I recall someone
- in the past year or two telling me about finding the remains of the sand
- mould that was used for a nearby weld.
-
-
- Calvin Henry-Cotnam, CATE | "...My brain IBM"
- Ryerson Polytechnical Institute | "So if you see me, acting strangely..."
- Toronto, Ontario, Canada | STYX, Mr. Roboto
-