Subject: Re: [baidarka] ammonia bending?
From: MICHAEL SILVIUS (m.silvius@worldnet.att.net)
Date: Mon Mar 11 2002 - 19:58:03 EST
> Michael, please call me Greg. I know my e-mail address says "Gregory"
but
> the last person to call me that was a nun in 8th grade.
>
> Thanks,
> Greg Anderson
>
Greg et all:
Sorry I promise not to remind you of catholic school again..
On the whole subject of soaking and bending wood. A long time ago I was
working in a shop where we made woden split bearings (180 per hour) for
aplications that did not allow the use of conventional lubricants. Grain
augers, paper pulp agitators and the like. Awfull repetitive work were you
measured your progress by the size of the pile of shavings you made. The
point to this is that we made these out of maple that had been
super-sturated in a proprietary concotion of parafin and god only knows
what. The dimentionaly milled raw stock would be boiled by day in this
stuff for a whole week, and allowed to cool each night. The theory
explained to me at the time was that this would open up the pores of the
wood and as the wood cooled at night it would draw in the parafin mixture.
I dont know how scientificaly acurate the description was but in the end we
had 2"X 2" X18" chunks of maple that were completely saturated with the
stuff. This stock was then miled and cut. And the bearings were then turned
on a lathe (my Job) from this self-lubricating maple. My though being that
some similar process of repetitive heating and cooling the material you
intend to bend all the while inmersed in water might have the same super
saturation effect.
of cource for 1/4" thick ribs this hardly seems nessesary.
cheers: Michael
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