[TheForge] Krause/Nazel type air hammer

[Jerry Frost]

I agree on the heat issue so unless you used a high temp plastic I don't
know about, (wouldn't surprise me a bit) it'd probably fail sooner than
later.

On the other hand standard O-rings will take quite a bit of heat and way
more pressure than a hammer is likely to produce. (without exploding <grin>)
High temp O-rings are also available I used to make a silicone version good
to 450f.

I wish I had a clear picture of the valving system. Any diagrams or sketches
around?

Frosty
------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.


----- Original Message -----
From: "Peter Fels and Phoebe Palmer" <Artgawk@thegrid.net>
To: <theforge@mailman.qth.net>
Sent: Saturday, December 07, 2002 8:13 PM
Subject: Re: [TheForge] Krause/Nazel type air hammer


> At 07:58 PM 12/7/02, you wrote:
>
>
> >Peter Fels and Phoebe Palmer wrote:
> >
> >>Steve, Could be wrong here, but a tight and precise valve is important
to
> >>both efficiency and control. Plastic seals..well, it would take a number
> >>of them..much harder than lapping the valve.
> >>Pete
> >
> >I'm not thinking of seals so much as making one part of the valve from
> >metal, the other part from plastic (contained in a larger tube). I don't
> >have a clue if it will work any better or worse, but it sounds way easier
> >than teaching myself to do a good job lapping. Maybe not.
> >
> >Steve
>
>   Steve; the self contained hammers tend to generate a lot of heat that
> could easily damage the plastic...I have seen oil literally smoking a
> little on one.....Pete
>