I'm not sure how to do this exactly. What i am looking to do is use an
aluminum rod to heat a larger metal surface, i'm not sure what i'll
use yet. So, i want to heat the aluminum rod using electricity. I know
it's possible, but i don't know how to do it safely. I'm good with
electronics, and i'll have a monitoring circuit using a temperature
sensor to shut off the heating at certain temperatures. I can handle
the electronics no problem, but it's heating the aluminum that i'm
unsure how to do safely. Obviously the metal block i'm heating will be
grounded, but i'm really unsure how to heat it with the aluminum. Any
help would be appreciated.

Thanks

Blair wrote:
I'm not sure how to do this exactly. What i am looking to do is use an
aluminum rod to heat a larger metal surface, i'm not sure what i'll
use yet. So, i want to heat the aluminum rod using electricity. I know
it's possible, but i don't know how to do it safely. I'm good with
electronics, and i'll have a monitoring circuit using a temperature
sensor to shut off the heating at certain temperatures. I can handle
the electronics no problem, but it's heating the aluminum that i'm
unsure how to do safely. Obviously the metal block i'm heating will be
grounded, but i'm really unsure how to heat it with the aluminum. Any
help would be appreciated.

Thanks

Sorta depends on how hot you want things go get, but just run current
through the rod.

--
Jim Pennino

Remove -spam-sux to reply.

Blair wrote:
I'm not sure how to do this exactly. What i am looking to do is use an
aluminum rod to heat a larger metal surface, i'm not sure what i'll
use yet. So, i want to heat the aluminum rod using electricity. I know
it's possible, but i don't know how to do it safely. I'm good with
electronics, and i'll have a monitoring circuit using a temperature
sensor to shut off the heating at certain temperatures. I can handle
the electronics no problem, but it's heating the aluminum that i'm
unsure how to do safely. Obviously the metal block i'm heating will be
grounded, but i'm really unsure how to heat it with the aluminum. Any
help would be appreciated.

Thanks

Do you know what a resistor is?

wrote:
Blair wrote:
I'm not sure how to do this exactly. What i am looking to do is use an
aluminum rod to heat a larger metal surface, i'm not sure what i'll

Why, sounds unlikely to be practical.

use yet. So, i want to heat the aluminum rod using electricity. I know
it's possible, but i don't know how to do it safely. I'm good with
electronics, and i'll have a monitoring circuit using a temperature
sensor to shut off the heating at certain temperatures. I can handle
the electronics no problem, but it's heating the aluminum that i'm
unsure how to do safely. Obviously the metal block i'm heating will be
grounded, but i'm really unsure how to heat it with the aluminum. Any
help would be appreciated.

Thanks

Sorta depends on how hot you want things go get, but just run current
through the rod.

That's generally not a helpfull suggestion - the current needed to heat
any size of 'rod', is probably prohibitively large.

Blair wrote:

I'm not sure how to do this exactly. What i am looking to do is use an
aluminum rod to heat a larger metal surface, i'm not sure what i'll
use yet.

A Frog named Fourier worked it all out using an iron donut.

So, i want to heat the aluminum rod using electricity. I know
it's possible, but i don't know how to do it safely. I'm good with
electronics, and i'll have a monitoring circuit using a temperature
sensor to shut off the heating at certain temperatures. I can handle
the electronics no problem, but it's heating the aluminum that i'm
unsure how to do safely. Obviously the metal block i'm heating will be
grounded, but i'm really unsure how to heat it with the aluminum. Any
help would be appreciated.

Insulated resistance winding on the plate to be heated. Screw the
aluminum rod.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf

Ian Stirling wrote:
wrote:
Blair wrote:
I'm not sure how to do this exactly. What i am looking to do is use an
aluminum rod to heat a larger metal surface, i'm not sure what i'll

Why, sounds unlikely to be practical.

use yet. So, i want to heat the aluminum rod using electricity. I know
it's possible, but i don't know how to do it safely. I'm good with
electronics, and i'll have a monitoring circuit using a temperature
sensor to shut off the heating at certain temperatures. I can handle
the electronics no problem, but it's heating the aluminum that i'm
unsure how to do safely. Obviously the metal block i'm heating will be
grounded, but i'm really unsure how to heat it with the aluminum. Any
help would be appreciated.

Thanks

Sorta depends on how hot you want things go get, but just run current
through the rod.

That's generally not a helpfull suggestion - the current needed to heat
any size of 'rod', is probably prohibitively large.

You mean toaster ovens don't really work?

I'll grant the heating elements aren't aluminum, but the principal is
the same.

--
Jim Pennino

Remove -spam-sux to reply.

Go to the nearest aluminum factory and take a tour ..or poor ,,they
will show you evrything.
heat the mold
welding . rod wire tig mig spot
never hurt anyone to go weld and lay steel out too.
I have the mini foundry on the ship.
tool room , machine shop .
electronics robotics. hydrolics.

In article ,
Blair wrote:
I'm not sure how to do this exactly. What i am looking to do is use an
aluminum rod to heat a larger metal surface, i'm not sure what i'll
use yet. So, i want to heat the aluminum rod using electricity. I know
it's possible, but i don't know how to do it safely. I'm good with
electronics, and i'll have a monitoring circuit using a temperature
sensor to shut off the heating at certain temperatures. I can handle
the electronics no problem, but it's heating the aluminum that i'm
unsure how to do safely. Obviously the metal block i'm heating will be
grounded, but i'm really unsure how to heat it with the aluminum. Any
help would be appreciated.

Thanks

I'm having a little trouble understand what you're trying to do. Do you
mean to heat the aluminum rod, then carry it to a larger metal surface?
Is the aluminum rod to be a heating element like one of the squiggly wires
in a toaster?

The aluminum can be heated by dumping a load of current through it,
P=I^2R. But aluminum is gosh-darned conductive. If you have copper
wiring bringing the current to and from the aluminum, that's likely to get
pretty hot, too.



--
"Are those morons getting dumber or just louder?" -- Mayor Quimby

wrote:
Ian Stirling wrote:
That's generally not a helpfull suggestion - the current needed to heat
any size of 'rod', is probably prohibitively large.

You mean toaster ovens don't really work?

I'll grant the heating elements aren't aluminum, but the principal is
the same.

Ian has a point.

If you'd like, I'll run the numbers on my toaster oven. I'm sure we are
talking several hundred amps or more.

(Those oven elements are a thin ni-crome wire imbedded in a thick
ceramic of some sort, I do believe)

What is wrong with induction heating??? There is a whole, 'little',
industry based around that...

Best, Dan.

--
http://lakeweb.net
http://ReserveAnalyst.com
No EXTRA stuff for email.
What can you see if you can't see it all...

wrote in message
...
Ian Stirling wrote:
wrote:
Blair wrote:
I'm not sure how to do this exactly. What i am looking to do is
use an
aluminum rod to heat a larger metal surface, i'm not sure what
i'll

Why, sounds unlikely to be practical.

use yet. So, i want to heat the aluminum rod using electricity.
I know
it's possible, but i don't know how to do it safely. I'm good
with
electronics, and i'll have a monitoring circuit using a
temperature
sensor to shut off the heating at certain temperatures. I can
handle
the electronics no problem, but it's heating the aluminum that
i'm
unsure how to do safely. Obviously the metal block i'm heating
will be
grounded, but i'm really unsure how to heat it with the
aluminum. Any
help would be appreciated.

Thanks

Sorta depends on how hot you want things go get, but just run
current
through the rod.

That's generally not a helpfull suggestion - the current needed to
heat
any size of 'rod', is probably prohibitively large.

You mean toaster ovens don't really work?

I'll grant the heating elements aren't aluminum, but the principal
is
the same.

I doubt if they are rods either.

Franz