[TheForge] Krause/Nazel type air hammer

Fri Dec 13 00:10:01 2002

I knew I was going to learn a lot on this project; thanks, Jerry for the 
O ring suggestion. I'll think on this.

I will try to put together a coherent description of the valve, but I 
will need to stare at it for a bit longer.

Steve

Jerry Frost wrote:
> 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" <[email protected]>
> To: <[email protected]>
> 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
>>
> 
> 
> 
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