On Apr 21, 10:04=A0pm, John Reilly <strb...@[EMAIL PROTECTED]
> wrote:
> On Apr 20, 11:49=A0pm, Auriga <brada...@[EMAIL PROTECTED]
> wrote:
>
> > Although most say you should always press whistles as opposed to
> > ramming them there are instances where a rod and mallett are better
> > suited. =A0I was usind a 70/30 perc salicylate mix in 3/8 tubes.
=A0With=
> > little more than a tsp. of comp and proper safety gear I felt that
> > pressing would be too time consuming. =A0With some friction and impact
> > tests ramming was commenced. =A0No problems.
>
> I think that lightly ramming a very small amount of sodium salicylate
> and potassium perchlorate (no Ti or other metal) wouldn't be too risky
> so long as precautions are taken for eye and face and hand protection
> just in case one happened to pop on you. =A0A tsp. of whistle exploding
> probably wouldn't have the brisance of an aluminum flash powder but
> still deserves respect (as I'm sure you're aware, Mike). =A0I still
> press whistle inserts and the few whistle rockets I make on the arbor
> press but I rammed them for years (including many KClO3/Gallic Acid
> whistles) before learning how sensitive that mixture could be. =A0It
> wasn't until I met some pro's in the late 60s who told me of the many
> factory accidents that occurred with the chlorate/gallic acid being
> rammed for shell whistles in the 30s and 40s. =A0Curiously, I never had
> an explosion or ignition from the gallic acid, benzoates or
> salicylates with KClO3 or KClO4. =A0The BAM tests, of course, use that
> gallic/chlorate whistle mix as a relative benchmark for all other
> firework/pyrotechnic/explosive mixtures. I wouldn't ever advise anyone
> new to this hobby to ram the salicylate or benzoate/perchlorate mixes
> even though I think with proper care, an explosion is unlikely. =A0Of
> more concern to me would be the possibility of a tsp. of whistle
> popping and igniting a close at hand larger amount of the
> composition. =A0And to be honest, the folks pressing whistle composition
> containing titanium to such extreme pressures =A0for their rockets
> scares me much more. I don't own a hydraulic press since to me, it
> would only save time using gang tooling which I don't care to invest
> in. If I made a lot of whistle rockets or strobe rockets, I would
> probably invest in one. =A0I mallet ram all black powder based rockets,
> spolettes, gerbes, drivers, =A0crossette comet stars 1-1/4" or less. The
> 3-ton arbor press is fine and fast for whistles and smaller whistle
> rockets, and maximum 4" comets and powder pucks.
>
> John
Auriga,
I don't have any experience with tooting mixes, but like LK, and John
R. says a arbor press would seem a lot faster and cut any risk of
ramming.
Especially with the burka, Taliban hat, heavy clothes, steel toed
boots, other body armor, and welding gloves.
Just think about having to scratch your butt at that right time.
Too ***bersome.
Now if someone could come up with a way to pour, as in go-getters.
I have to remember we work against odds, even if they're 10,000 to 1.
Plus the fact that with small amouts I have a certain mileage for each
pair of shorts I wear.
If the odds come up, it messes with my wardrobe scheme when I have to
change.
I know you're a safe worker, don't go at it like killing s****s.
Think of doing it with love.
Watch those vids. on pyrobin posted by leosedf.
Watch those 2 builders making demo shells, I can see the care, and
love in their work.
Remember, for most this is a hobby, not piece work.
Trudge the happy destiny, and post a video.
No more cheap beer, Dan
PS Real sweet farfalle shell by Ren'e on Pyrobin too.
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