[TheForge] Re: RE: Petrogen Torch Yak

Ralph Sproul brhlbsmt at mcttelecom.com
Thu Aug 19 15:03:44 EDT 2004 

Bill, I've used one on a stainless pin that was bent and would not come out
of a machine once....... it did the job.  The air arc went in over two
inches then coated over and I couldn't clean the tapered hole......the air
lance went right thru.

(robing a bank to pay the bills?)  - that's what the movies indicate.

Ralph

----- Original Message -----
From: "Woolley" <wjande at erols.com>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Thursday, August 19, 2004 11:43 AM
Subject: Re: [TheForge] Re: RE: Petrogen Torch Yak


> 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 ><>
> >>>>>_______________________________________________
> >>>>>Manage membership or unsubscribe at:
> >>>>>http://mailman.qth.net/mailman/listinfo/theforge
> >>>>>theforge mail list group photo site is
> >>>>>http://www.photoaccess.com
> >>>>>Login:  blacksmithblacksmith at hotmail.com
> >>>>>password:  anvil
> >>>>>___________
> >>>>>
> >>>>>
> >>>>>_______________________________________________
> >>>>>Manage membership or unsubscribe at:
> >>>>>http://mailman.qth.net/mailman/listinfo/theforge
> >>>>>theforge mail list group photo site is
> >>>>>http://www.photoaccess.com
> >>>>>Login:  blacksmithblacksmith at hotmail.com
> >>>>>password:  anvil
> >>>>>___________
> >>>>>
> >>>>>
> >>>>>
> >>>>_______________________________________________
> >>>>Manage membership or unsubscribe at:
> >>>>http://mailman.qth.net/mailman/listinfo/theforge
> >>>>theforge mail list group photo site is
> >>>>http://www.photoaccess.com
> >>>>Login:  blacksmithblacksmith at hotmail.com
> >>>>password:  anvil
> >>>>___________
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>_______________________________________________
> >>>Manage membership or unsubscribe at:
> >>>http://mailman.qth.net/mailman/listinfo/theforge
> >>>theforge mail list group photo site is
> >>>http://www.photoaccess.com
> >>>Login:  blacksmithblacksmith at hotmail.com
> >>>password:  anvil
> >>>___________
> >>>
> >>>
> >>>
> >>>
> >>>
> >>_______________________________________________
> >>Manage membership or unsubscribe at:
> >>http://mailman.qth.net/mailman/listinfo/theforge
> >>theforge mail list group photo site is
> >>http://www.photoaccess.com
> >>Login:  blacksmithblacksmith at hotmail.com
> >>password:  anvil
> >>___________
> >>
> >>
> >>
> >>
> >>
> >
> >_______________________________________________
> >Manage membership or unsubscribe at:
> >http://mailman.qth.net/mailman/listinfo/theforge
> >theforge mail list group photo site is
> >http://www.photoaccess.com
> >Login:  blacksmithblacksmith at hotmail.com
> >password:  anvil
> >___________
> >
> >
> >
> >
> >
>
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
>
>
>

More information about the TheForge mailing list