[TheForge] Re: RE: Petrogen Torch Yak
Woolley
wjande at erols.com
Thu Aug 19 11:43:13 EDT 2004
Hello,
I know I'm way late on this thread but I was just curious, what would
anyone working a small( pick a size) smithy, fab shop, possibly use an
air lance for?
Regards,
Bill Woolley
debmiller at fuse.net wrote:
>The petrogen is only for cutting. The one of the other emails in this thread listed another version that could cut and weld.
>
>Ray Miller
>Cincinnati
>
>
>>From: "Rafter Lazy C" <rick at rafterlazyc.com>
>>Date: 2004/08/19 Thu AM 07:51:58 EDT
>>To: "Sponsored by ABANA" <theforge at mailman.qth.net>
>>Subject: Re: [TheForge] Re: RE: Petrogen Torch Yak
>>
>>Hello guys -
>>
>> I was wondering whether these gasoline torches would be able to gas weld
>>the same as an oxy-acetylene? Does anyone have knowledge of this? I have
>>been thinking about replacing my old torch and the gasoline doesn't sound
>>bad, but I need to be able to weld with my torch also.
>>
>>Rick Crawford at Rafter Lazy C
>>Home of Smoky Forge and Lem the Wonder Mule
>>
>>----- Original Message -----
>>From: <debmiller at fuse.net>
>>To: "Sponsored by ABANA" <theforge at mailman.qth.net>
>>Sent: Tuesday, August 17, 2004 6:47 AM
>>Subject: [TheForge] Re: RE: Petrogen Torch Yak
>>
>>
>>
>>
>>>My understanding of the petrogen torch is that it was developed for the
>>>
>>>
>>Department of Energy for use in the dismantling of nuclear weapons sites,
>>like Fernald, etc. I have not personally used one but had previously
>>reviewed their performance for possible purchase by GE for use in large
>>scale demolition projects. We were taking down 50 plus year old building
>>with thick steel plate shielding, 3 foot thick concrete walls that were
>>almost solid rebar, etc.
>>
>>
>>>The cutting speeds are incredible, fuel costs are(were) cheap and the
>>>
>>>
>>cutting capacity is unbelievable. I will see if I can dig up the DOE site
>>that had a pdf file of an extensive study performed comparing the petrogen
>>to acetylene.
>>
>>
>>>As far as safety, gasoline is not flammable, only the vapors. So the unit
>>>
>>>
>>keeps the fuel in liquid form all the way up to the mixing chamber in the
>>torch head. Then it is vaporized and mixed with O2 and baby does it burn.
>>Gasoline is 125,000 BTU/gallon!!!!
>>
>>
>>>That's a ton of heat!!
>>>
>>>Ray Miller
>>>Cincinnati
>>>
>>>
>>>>From: "Michael H. Murphy" <blacksmith at comcast.net>
>>>>Date: 2004/08/16 Mon PM 06:00:05 EDT
>>>>To: "'Sponsored by ABANA'" <theforge at mailman.qth.net>
>>>>Subject: RE: [TheForge] allstate oxy-propane torch
>>>>
>>>>After reading through this whole thread (and getting some good info out
>>>>
>>>>
>>of
>>
>>
>>>>it), I figured this one would really get everyone going. N.B. I've
>>>>
>>>>
>>never
>>
>>
>>>>tried it, nor talked to anyone who has, so I'm not claiming anything.
>>>>
>>>>http://www.petrogen.com/
>>>>
>>>>Murf
>>>>
>>>>
>>>>
>>>>>-----Original Message-----
>>>>>From: theforge-bounces at mailman.qth.net [mailto:theforge-
>>>>>bounces at mailman.qth.net] On Behalf Of Bruce Freeman
>>>>>Sent: Monday, August 16, 2004 3:35 PM
>>>>>To: theforge at mailman.qth.net
>>>>>Subject: Re: [TheForge] allstate oxy-propane torch
>>>>>
>>>>>I went to the site and found the table. I did not find any
>>>>>
>>>>>
>>explanation
>>
>>
>>>>>of what they MEAN by oxygen to fuel gas ratio. As I and others have
>>>>>pointed out, it certainly is not the stoichiometry of the respective
>>>>>reactions. It may be "correct", but we have to know what it means to
>>>>>judge that.
>>>>>
>>>>>Bruce
>>>>>NJ
>>>>>
>>>>>
>>>>>
>>>>>>>>"terry l. ridder" <terrylr at blauedonau.com> 8/16/2004 3:16:48 AM
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>hello;
>>>>>
>>>>>no the table is correct:
>>>>>reference for the table are:
>>>>>
>>>>>twi world centre for materials joining technology
>>>>>oxyfuel cutting - process and fuel gases
>>>>>http://www.twi.co.uk/j32k/protected/band_3/jk49.html
>>>>>
>>>>>the usa affiliate is edison welding institute at www.ewi.org
>>>>>
>>>>>college chemistry book
>>>>>
>>>>>every one carbon atom needs 2 oxygen atoms to form CO2.
>>>>>every two hydrogen atoms need 1 oxygen atom to form H2O.
>>>>>
>>>>>propane == C3H8
>>>>>oxygen == O2
>>>>>
>>>>>C3H8(g) + (5)O2(g) == (3)CO2(g) + (4)H20(g)
>>>>>
>>>>>the above equation is balanced.
>>>>>
>>>>>acetylene == C2H2
>>>>>oxygen == O2
>>>>>
>>>>>C2H2(g) + (2.5)O2(g) = (2)CO2(g) + H2O(g)
>>>>>
>>>>>the above equation is balanced.
>>>>>
>>>>>propylene == C3H6
>>>>>oxygen == O2
>>>>>
>>>>>C3H6(g) + (4.5)O2(g) = (3)CO2(g) + (3)H2O(g)
>>>>>
>>>>>the above equation is balanced.
>>>>>
>>>>>On Sun, 15 Aug 2004, James Binnion wrote:
>>>>>
>>>>>james> Terry your chart is wrong or has a typo.
>>>>>james>
>>>>>james> Acetylene:
>>>>>james> Theoretical Oxygen Ratio, by volume 2.5 : 1
>>>>>james> Torch Oxygen Ratio, by Volume 1.1 : 1
>>>>>james>
>>>>>james> Propane:
>>>>>james> Theoretical Oxygen Ratio, by volume 5 .0: 1
>>>>>james> Torch Oxygen Ratio, by Volume 3.5 : 1
>>>>>james>
>>>>>james> Source for Torch Oxygen Ratio, by Volume
>>>>>james> Oxygen Cutting; Meyer; Green et. al.; Welding Handbook, Vol. 2,
>>>>>8th
>>>>>james> ed., pg. 454, American Welding Society
>>>>>james>
>>>>>
>>>>>--
>>>>>terry l. ridder ><>
>>>>>_______________________________________________
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>>>>>
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>
>_______________________________________________
>Manage membership or unsubscribe at:
>http://mailman.qth.net/mailman/listinfo/theforge
>theforge mail list group photo site is
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>Login: blacksmithblacksmith at hotmail.com
>password: anvil
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