This sort of stuff has been around for ages. It is also used in the steel
fabrication industry to cut steel. If memory serves me correctly, in some
situations ground industrial diamond is also added to the water for that
"little
extra zing".
I have not seen this operation in use personally but the people who
have told me about it say that the cut is better than any other method, flame,
saw etc.
Andrew
On 6 Feb 2003 at 5:53, motie_d [EMAIL PROTECTED] wrote:
> --- In biofuel@yahoogroups.com, "kirk" <[EMAIL PROTECTED]> wrote:
> > There is an out of print book "Novel Drilling Technoques" that in
> the second
> > edition talks about cutting sandstone at several meters per second
> with
> > liquid pressures of that magnitude. Granite I think was 7cm per
> second if
> > memory serves.
> > Obscure technology.
> >
> > Anyway, you can lose a lot more than just soft tissue. Even a
> couple hundred
> > psi can inject you like a hypodermic needle. Probably wouldn't be a
> good
> > thing to happen.
> >
> > Kirk
> >
>
> I did some experimentation last winter for a technology development
> company, using high pressure water to cut wood. At a lower pressure,
> the water can be used to easily and cleanly remove the bark,(which
> contains contaminants) then turn the pressure up to thinly slice the
> wood, removing water soluble extracts. Non-disclosure agreements won't
> allow further details. Sorry.
>
> Motie
>
>
> Biofuel at Journey to Forever:
> http://journeytoforever.org/biofuel.html
>
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