[SEL] Foundry Question

[peter ogborne]

Thanks Rupert......Like Keith  we are interested in your design.
----- Original Message ----- 
From: "Keith Kinney" <kkinney at herculesengines.com>
To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
Sent: Tuesday, August 04, 2009 11:56 PM
Subject: Re: [SEL] Foundry Question


> Rupert
> What design of naturally aspirated burner do you use.  I just bought a
> new foundry set up and would like to change it from a blower to
> naturally aspirated burner.
> Thanks.
> Keith
>
>
> On Aug 4, 2009, at 8:57 AM, Rupert wrote:
>
>> Hello Peter,
>> I have a similar setup for doing my metal casting except I use a
>> naturally aspirated burner. The naturally aspirated burner is still
>> noisy but not as noisy as most fan driven burners. Also, there is no
>> difference in noise level when melting the different metals. What
>> changes is the heating time.
>> Two reasons I chose a naturally aspirated burner are noise level and
>> the fact that a power failure won't interrupt a melt.
>> In your case, changing the fan to a fan that produces the same
>> pressure
>> and volume of air at a lower rpm will reduce the noise a little.
>>
>> Rupert
>>
>> peter ogborne wrote:
>>> This is a difficult question ,at least I mean getting the correct
>>> answer .. I have friend who has had quite good success with his home
>>> foundry . To date he has cast alluminium ,brass and bronze and a
>>> small number of cast iron jobs .He cast two CI bearing caps for me
>>> and they machined well and the castings are first class. His home
>>> made furnace is fueled by LPG with an air blower . The furace itself
>>> is a crucible with flame entering at a tangent . There has been no
>>> great problem with noise apart from the normal ''Roar'' of the blower
>>> and flame whilst melting Alluminium ,Brass or Bronze . With higher
>>> temperature required for the Iron melt comes a high frequency scream
>>> It alternates in its volume ..Unfortunately this noise now presents a
>>> neighbor problem.It only occurs with the higher temp required for the
>>> iron. I know this is not an explicit explantion of the symptons but
>>> has any one experienced anything like this ?
>>> _______________________________________________ SEL mailing list
>>> SEL at lists.stationary-engine.com
>>> http://www.stationary-engine.com/mailman/listinfo/sel
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
>>>
>>>
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>>
>> -- 
>>
>> yvt
>>
>> Rupert Wenig
>> Camrose, Alberta, Canada.
>>
>> email: rwenig2 at xplornet.com
>>
>> http://users.xplornet.com/~rwenig/Home/
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>>
>
> Keith Kinney
> kkinney at herculesengines.com
> WWW.HerculesEngines.com
>
>
>
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