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Bill Zimmerman
Guest
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 Posted:
Sat Nov 12, 2005 5:35 pm Post subject:
Ways to make iron improve heat transfer? |
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I'm looking for ways to make a 25-Watt non temp control iron with the
same temp rating as a 70-Watt hotter than that of the 70-Watt non temp
control iron by manipulating the tip or by other means. What are some
ways that you would do this?
Thanks
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John Popelish
Guest
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| Posted:
Sat Nov 12, 2005 5:35 pm Post subject:
Re: Ways to make iron improve heat transfer? |
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Bill Zimmerman wrote:
| Quote: | I'm looking for ways to make a 25-Watt non temp control iron with the
same temp rating as a 70-Watt hotter than that of the 70-Watt non temp
control iron by manipulating the tip or by other means. What are some
ways that you would do this?
Thanks
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Thermally insulate as much of the heating element section of the iron
as possible. I have done this on a couple of irons by wrapping
fiberglass tape around the heater section and holding it in place with
a couple loops of fine, bare wire. Most of the heat produced by many
irons leaves the heater before getting to the tip. Expect the handle
to get hotter, too. |
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John Fields
Guest
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| Posted:
Sat Nov 12, 2005 5:35 pm Post subject:
Re: Ways to make iron improve heat transfer? |
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On 12 Nov 2005 08:39:40 -0800, "Bill Zimmerman" <simoung@gmail.com>
wrote:
| Quote: | I'm looking for ways to make a 25-Watt non temp control iron with the
same temp rating as a 70-Watt hotter than that of the 70-Watt non temp
control iron by manipulating the tip or by other means. What are some
ways that you would do this?
|
---
For 120V mains: (View in Courier)
MAINS>---+
| +----------+ +---------+
[VARIAC]<---|PRI SEC|--<<-----| |
| |120V 240V| | |
MAINS>---+--------|PRI SEC|--<<-----| |
+----------+ +---------+
ISOLATION SOLDERING
TRANSFORMER RON
--
John Fields
Professional Circuit Designer
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Pooh Bear
Guest
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| Posted:
Sun Nov 13, 2005 9:35 am Post subject:
Re: Ways to make iron improve heat transfer? |
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Bill Zimmerman wrote:
| Quote: | I'm looking for ways to make a 25-Watt non temp control iron with the
same temp rating as a 70-Watt hotter than that of the 70-Watt non temp
control iron by manipulating the tip or by other means. What are some
ways that you would do this?
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The temp at the tip is simply a question of balance of heat flow in a
non-thermostatic iron.
The 25W iron will seem hotter with a larger tip that can transfer heat to
the load ( the work ) better.
I think you're chasing a fairly pointless idea though.
Graham |
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Anthony Fremont
Guest
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| Posted:
Sun Nov 13, 2005 9:35 am Post subject:
Re: Ways to make iron improve heat transfer? |
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"Bill Zimmerman" wrote
| Quote: | I'm looking for ways to make a 25-Watt non temp control iron with the
same temp rating as a 70-Watt hotter than that of the 70-Watt non temp
control iron by manipulating the tip or by other means. What are some
ways that you would do this?
|
If you want to make the tip hotter, you could try making it smaller. |
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kell
Guest
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| Posted:
Sun Nov 13, 2005 9:35 am Post subject:
Re: Ways to make iron improve heat transfer? |
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Bill Zimmerman wrote:
| Quote: | I'm looking for ways to make a 25-Watt non temp control iron with the
same temp rating as a 70-Watt hotter than that of the 70-Watt non temp
control iron by manipulating the tip or by other means. What are some
ways that you would do this?
Thanks
Your post is a little confusing. It sounds like you want to make your |
25 watt
iron hotter. What does the 70 watt iron have to do with it? |
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Pooh Bear
Guest
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| Posted:
Sun Nov 13, 2005 4:28 pm Post subject:
Re: Ways to make iron improve heat transfer? |
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Anthony Fremont wrote:
| Quote: | "Bill Zimmerman" wrote
I'm looking for ways to make a 25-Watt non temp control iron with the
same temp rating as a 70-Watt hotter than that of the 70-Watt non temp
control iron by manipulating the tip or by other means. What are some
ways that you would do this?
If you want to make the tip hotter, you could try making it smaller.
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That increases the thermal resistance to the work and actually makes it
colder. Sorry. I talk from experience.
Graham |
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Pooh Bear
Guest
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| Posted:
Sun Nov 13, 2005 4:29 pm Post subject:
Re: Ways to make iron improve heat transfer? |
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kell wrote:
| Quote: | Bill Zimmerman wrote:
I'm looking for ways to make a 25-Watt non temp control iron with the
same temp rating as a 70-Watt hotter than that of the 70-Watt non temp
control iron by manipulating the tip or by other means. What are some
ways that you would do this?
Thanks
Your post is a little confusing. It sounds like you want to make your
25 watt
iron hotter. What does the 70 watt iron have to do with it?
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He seems to be using that as a reference.
Graham |
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Jasen Betts
Guest
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| Posted:
Mon Nov 14, 2005 4:06 pm Post subject:
Re: Ways to make iron improve heat transfer? |
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On 2005-11-12, Bill Zimmerman <simoung@gmail.com> wrote:
| Quote: | I'm looking for ways to make a 25-Watt non temp control iron with the
same temp rating as a 70-Watt hotter than that of the 70-Watt non temp
control iron by manipulating the tip or by other means. What are some
ways that you would do this?
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isulate it, pack it in rock wool (etc) and it'll get real hot.
(this will reduce the life of the device...)
even with that trick you won't get more thermal energy out of a 25W iron
except in very short bursts (during which it'll cool down)
another way is to run it at an over voltage, eg give a 115V iron 230V and
it'll use 4 times as much power and heat like a 100W iron,
and probably last about 10 minutes. it may not bea real safe doing that
either.
Bye.
Jasen |
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