[TheForge] Power hammer questions/Frosty

Wed Apr 9 11:52:00 2003

Seems to me what is needed is to create enough pressure to raise the ram.
If the ram weighs 100 lbs and the area of the piston is 4 square inches then
we need to create 25 psi to raise it, plus a scunch more to over come
friction.  There is some kinda formula for calcluateing  displacemnent and
air pressure but it's been a long time since I had a class in physics and I
can't remember what it it is. I've been semi looking for this, anyway if
this surfaces it should be a simple matter to calculate exactly what is
needed.
Randy Mundt
----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: Tuesday, April 08, 2003 1:42 PM
Subject: Re: [TheForge] Power hammer questions/Frosty


>
> >My ONLY claim on this is having understood the 19th century Brittish
english
> >lawyerese well enough to understand how Massey's valves work.
> >
> ______
>
> Frosty,
>
> i have been working thru this and have one more question. Do you know what
the relationship (volume) between the pump cylinder and the ram cylinder is
on the Massey hammers?
>
> Mark Krause suggested 2-1 for his Nazel takeoff. 2-1 seems to me to be too
much extra air to get rid of. Theoretically 1-1 seems like it would be
enough but...?
>
> Thanks.
>
> Bob Schade
>
>
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