Re: [CAD_CAM_EDM_DRO] Re[1]: Lead screw twist... some musings

Terry, I'd like to talk with you off line about your burners. I'm building
several furnaces specifically for steel melting. I do know you can melt
steel with propane using air with a blower 'cause my little round forge with
one small burner melts it if you leave it in there too long. I have to run
at about 8 to 10 PSI though.

I need to melt the steel and iron to make castings for a 12 axis CNC machine
I just designedas well as for gun and knife parts.

Might like to learmn more aboout that thrmite torch too.

-----Original Message-----
From: Terry L. Ridder <terrylr@...>
To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
Date: Sunday, November 12, 2000 1:27 AM
Subject: [CAD_CAM_EDM_DRO] Re[1]: Lead screw twist... some musings

>hello;
>
>i would tend to agree with both of you.
>the reason being that ideas tried in the
>past may not have worked out because the
>materials were not available at the time
>to allow it to work, also what is thought
>to be clearly understood turned out to be
>very different.
>
>a good example is ceramic materials.
>it was not until the space shuttle program
>did we see any advancement in high temperature
>ceramic materials. also new and exotic alloys
>have come out of the space program.
>
>a good example right out in my shop is
>a sample of zirconia ceramic blanket a company sent
>me. the only thing that i found that can touch it
>is a barco torch. a barco torch is basically a
>thermite torch. can slice through concrete in seconds.
>
>another example would be the propane forge design
>that i built based on others. nearly everyone kept
>saying that there was no way to get to welding temperatures
>using naturally aspirated burners. after much trial and
>error a burner design was proven to work. the next
>part was everyone said there was no way to melt steel
>or cast iron using naturally aspirated burners. again
>several people worked together on a burner design and
>many people are now able to melt cast iron using only
>naturally aspirated burners.
>
>my propane forge has four burners that i made.
>running at 2 psig propane to the burners i am able to
>get the internal temperture of the forge to 3250 degrees
>fahrenheit as read by a pyrometer. the forge sounds like
>a jet engine with all four burners on.
>
>
>On Sun, 12 Nov 2000, Jon Elson wrote:
>
>smoke>
>smoke> Smoke wrote:
>smoke>
>smoke> Yes BUT....how many inventions have been created by individuals who

were

>smoke> told by the "Experts"
>smoke> That it was impossible? That's even happend to me.
>smoke
>
>jon>
>jon> There is a big difference between being told something is impossible
>jon> because it has never been done before (heavier than air flight,
>jon> flight faster than sound, electric cars, or whatever) and being told
>jon> something is not going to function properly because it HAS been
>jon> tried before, the results were not good and the reasons are well
>jon> understood.
>jon>
>jon> Jon
>
>--
>Terry L. Ridder
>Blue Danube Software (Blaue Donau Software)
>"We do not write software, we compose it."
>
>digging deep, i feel my conscience burn
>i need to know who and what i am
>this hunger jolts me from complacency
>rocks me, makes me meet myself
>----kendall payne---closer to myself---
>
>
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