Yes. Hasrd to ignite! I used 3 ignition sparklers - normally one.
Thermite was not wet, only moist.
Mixture (factory made from Goldstein Co., Germany, used for
rail-welding) gave many sparks, but these sparks seemed to be more small
explosions. I think, it was oxyhydrogen gas.
Since this "trial" I dry thermite always in the baking oven before using
Peter, do you buy the thermite or make it yourself? I'd presume that if you
bought it you wouldn't (or shouldn't) have to worry as much about the wetness.
Or am I wrong on this?
Toadmonkey: "Now now. Brain popping and world crashing may be hazardous to ones
perception of reality.
Very dangerous business that can lead to madness or something worse for some,
Please remove all bits of spam from addy before replying....
Why should I buy thermite or even make by myself? The first has
something to do with money, the latter with work.
And work ruins all the day! :-((
I let it donate to me.
It´s for training of vocational schools.
But even this original thermite will get moistened from longer storage.
It´s realy necessary to dry it in the oven at temperatures something
over 100 Celsius.
For ignition we use a sort of thicker sparklers, also from
(Sorry, in my first posting I used the wrong name "Goldstein". Mistake!
Goldschmidt was the inventor, his factory is still existing in Germany.)
Yes - and a big question of heat transfer. I dont think that water could
remove heat faster than it being generated, even ice water.
One thing it will do, however, is to create a HUGE amount of steam and
turbulence, probably making any respectable welding unfeasable. Refractory
molds which are ordinarily used in this process would become waterlogged and
probably explode underwater, unless you can afford solid blocks of graphite
or certain other materials. It would not be a practical method for most
Check the USPTO website. Someone invented a laser method for underwater use.
I think you'd do much better with a laser. You can contact the inventor to
see if it's commercially available etc.
I think that depends on factors not readily apparent from the original
question -- such as the size and configuration of the thermite sample
and its contact with water. As an almost absurd example, spread a
gram of thermite over a square meter of almost anything and I doubt
that it will self-sustain.
For any normal welding situation, you are right of course.
Real address contains worldnet instead of spamnet
I'd like to see it in action myself - all I can tell you is that I've seen
that patent. I have to admit - it does sound interesting - if it works.
Sometimes I think that engineers will patent something to cover their ass
even if it dosent work "yet", because they expect it to after some
I think that you could get past the turbulence issue with a laser by using a
piece of pure optical grade fused quartz as a "welding tip". It can
certainly take the heat, extremely low modulus of expansion, and it behaves
alot like glass. You could use a cylider of optical quartz to communicate
the laser energy diretly to the weld zone, and because you can get so close
to the weld with the quartz the turbulence and steam issues can be somewhat
I'm just tossing shit out here, but I certainly think it's possible. There's
a hundred ways to skin that cat.
One factor to consider is that molten iron in contact with water
releases hydrogen gas as Fe+2H20->FeO2 + 2(H2). Under water there is no
free oxyget to ignite the hydrogen, but if it is a surface reaction then
the available oxygen in the air may cause an explosion. This is
cautioned in early books on Thermit welding on railroad rails.
firstname.lastname@example.org (formerly) wrote:
This would depend on the configuration (binders containment etc) of the
In many cases the answer would be no. However,
see what you can find on the Pyronol Torches, which
supplement the Al with Ni, and "are" used for underwater applications.
You didn't catch the pointing out of your quite hilarious miss-spelled
word? All the "top secret, burn before reading, if I tell you I have to kill
you, bullshit goes up in smoke when you spell "proprietary" as