Brad Sondahl on sat 30 jun 01
I'd like to make some wire supports to add to stilts for firing french
butter dishes with a minimum of unglazed surface. I tried 14 gauge
kanthal wire, but most of the ones I tried it on bent over flat, ruining
both stilts and dishes. Is there a wire which is stiff at Cone 10?
Or another option I'm not thinking of?
Brad Sondahl
--
For original art, music, pottery, and literature, visit my homepage
http://pages.about.com/bsondahl
Pottery homepage http://sondahl.freeyellow.com
Tom Wirt/Betsy Price on sun 1 jul 01
Brad
Also take a look at using the rod from a kiln sitter. They can be
bought separately for very little.
Tom Wirt
ubject: Re: Stiff wire at cone 10
> use a burned out thermocouple probe... built to take the heat.
>
Snail Scott on sun 1 jul 01
At 07:58 AM 7/1/01 -0700, you wrote:
>I cut up a burned out igniter for gas furnace (tungsten) and made some
>setter points.
>Roger Korn
I used to do a lot of TIG welding. The electrode
is tungsten, and it would eventually reach a
point where it had burned away beyond the usable
length. The remaining bit was maybe an inch long.
We just chucked them out - never thought to use
them for anything else. I wonder how many other
welders do the same.
-Snail
Roger Korn on sun 1 jul 01
I cut up a burned out igniter for gas furnace (tungsten) and made some
setter points. Worked fine at ^10. Used a Chinese diamond cut-off wheel
from Harbor Freight in my Dremel. Just happened to have the igniter
laying around. Tungsten is expen$ive $stuff.
Roger Korn
McKay Creek Ceramics
Brad wrote:
...Is there a wire which is stiff at Cone 10?
Or another option I'm not thinking of?
Brad Sondahl
Tommy Humphries on sun 1 jul 01
use a burned out thermocouple probe... built to take the heat.
Tommy
----- Original Message -----
From: "Brad Sondahl"
To:
Sent: Saturday, June 30, 2001 10:14 AM
Subject: Stiff wire at cone 10
> I'd like to make some wire supports to add to stilts . I tried 14 gauge
> kanthal wire...bent over flat. Is there a wire which is stiff at Cone 10?
> Or another option I'm not thinking of?
> Brad Sondahl
>
> --
> For original art, music, pottery, and literature, visit my homepage
> http://pages.about.com/bsondahl
> Pottery homepage http://sondahl.freeyellow.com
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
>
Fredrick Paget on sun 1 jul 01
What ever that igniter is made of I don't think it is tungsten. Tungsten
readily oxidizes in air at less than cone 10. I have made tungsten oxide by
oxidizing scrap tungsten in the kiln.
There are some Nickel superalloys made by Haynes International, called
Hastelloy, that take very high temperatures and oxidizing atmospheres.
Hastelloy C-27 is tested at 2552 F (1400C), although there is no mention
of whether it will last at that temperature.
Haynes 214 alloy is recommended for use at 2200F (1204C).
Some of the alloys are availble in wire that is used in MIG welding. If
someone could get a short piece of that wire to test in a kiln. it might be
enlightening.
Here are some URLs:
http://www.hpalloy.com/DataSheets/hightemp.htm
http://www.haynesintl.com/
Fred Paget
>I cut up a burned out igniter for gas furnace (tungsten) and made some
>setter points. Worked fine at ^10...
>Roger Korn
> Brad wrote:
> ...Is there a wire which is stiff at Cone 10?
> .
.
From Fred Paget, Marin County, California, USA
tom huber on sun 1 jul 01
--=======508B10B7=======
Content-Type: text/plain; x-avg-checked=avg-ok-424DBE6; charset=us-ascii; format=flowed
HI Brad
You might try 5/32" stainless welding rod. you can get uncoated TIG welding
rod or remove the flux from coated rod. I would experiment first.
later Tom
At 08:14 AM 6/30/01 -0700, you wrote:
>I'd like to make some wire supports to add to stilts for firing french
>butter dishes with a minimum of unglazed surface. I tried 14 gauge
>kanthal wire, but most of the ones I tried it on bent over flat, ruining
>both stilts and dishes. Is there a wire which is stiff at Cone 10?
>Or another option I'm not thinking of?
>Brad Sondahl
>
>--
>For original art, music, pottery, and literature, visit my homepage
>http://pages.about.com/bsondahl
>Pottery homepage http://sondahl.freeyellow.com
>
>______________________________________________________________________________
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
>
>
>---
>Incoming mail is certified Virus Free.
>Checked by AVG anti-virus system (http://www.grisoft.com).
>Version: 6.0.263 / Virus Database: 135 - Release Date: 6/22/01
--=======508B10B7=======
Content-Type: text/plain; charset=us-ascii; x-avg=cert; x-avg-checked=avg-ok-424DBE6
Content-Disposition: inline
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.263 / Virus Database: 135 - Release Date: 6/22/01
--=======508B10B7=======--
iandol on mon 2 jul 01
Dear Brad Sondahl,
You need a heat resistant material which retains it's strength above =
1300 Celsius. My suggestion is a Cobalt Nickel Tungsten alloy called =
Stellite. It is available as bare welding rods about 1/8 inch dia in =
eighteen inch lengths Select one with highest Tungsten content, either =
No 1 or No 20.
Best regards,
Ivor Lewis. Redhill, South Australia
Richard Jeffery on mon 2 jul 01
Sorry - back to virus city...
this is the first email via Clayart server I have seen with an attachment -
even if it promises to be a txt file (AT00004.txt). No, I haven't opened
it.
So far, here in UK land, where we have had our fill of real virus this year,
let alone virtual ones, I have seen no trace of any of what you seem to be
experiencing. I'm tempting fate, but that seems to counter any suggestion
that Clayart has been spreading virii.
However, I am concerned to see an attachment, which I thought had been
precluded by the Clayart server set up.
I am aware that in certain cases Outlook strips out text from html
formatting , and appends that as a file, but this doesn't seem to be the
case.
Richard
Bournemouth UK
www.TheEleventhHour.co.uk
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
Behalf Of tom huber
Sent: 01 July 2001 23:09
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Stiff wire at cone 10
HI Brad
You might try 5/32" stainless welding rod. you can get uncoated TIG welding
rod or remove the flux from coated rod. I would experiment first.
later Tom
At 08:14 AM 6/30/01 -0700, you wrote:
>I'd like to make some wire supports to add to stilts for firing french
>butter dishes with a minimum of unglazed surface. I tried 14 gauge
>kanthal wire, but most of the ones I tried it on bent over flat, ruining
>both stilts and dishes. Is there a wire which is stiff at Cone 10?
>Or another option I'm not thinking of?
>Brad Sondahl
>
>--
>For original art, music, pottery, and literature, visit my homepage
>http://pages.about.com/bsondahl
>Pottery homepage http://sondahl.freeyellow.com
>
>___________________________________________________________________________
___
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
>
>
>---
>Incoming mail is certified Virus Free.
>Checked by AVG anti-virus system (http://www.grisoft.com).
>Version: 6.0.263 / Virus Database: 135 - Release Date: 6/22/01
| |
|
