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Thread: SA TIG Tungstens Free
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29th Jul 2020, 06:29 PM #1Most Valued Member
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SA TIG Tungstens Free
Handful of Red and White tipped TIG electrodes to rehome.
Asstd 2.4 and 3.2mm, some used, some never ground.
Surplus to requirements, I’ve standardised on Lanthanated for everything.
Free to a good home, will post but can’t do so for a week or so because of work commitments.
Offered as a lot only, not separating.
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29th Jul 2020, 11:21 PM #2New Member
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I would like these. I'll PM you with details. Thanks, Max.
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2nd Aug 2020, 07:23 PM #3Senior Member
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[QUOTE=racingtadpole;1972174]Handful of Red and White tipped TIG electrodes to rehome.
Asstd 2.4 and 3.2mm, some used, some never ground.
Surplus to requirements, I’ve standardised on Lanthanated for everything.
Free to a good home, will post but can’t do so for a week or so because of work commitments.
Offered as a lot only, not separating.[
didn't see the second post
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2nd Aug 2020, 08:50 PM #4Senior Member
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Dear Mr High Speed Juvenile Frog.
Not that I want them, but could you explain how (the technology) and where these are used please. I always thought that tungsten tips were inserts fitted into the handpiece. I am a bit out of date as I have not engaged in TIG welding for at least 35 years. Perhaps a post in the "Welding" area of the forum would help us "old kodgers!"
Thanks,
Alan.
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3rd Aug 2020, 06:50 AM #5Most Valued Member
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The link below has a diagram that shows the assembly and where the tungsten fits into the torch about halfway down the page.
https://www.jasic.co.uk/post/spare-p...-welding-torch
Essentially the tungsten is one side of the electrical connection of the welding process. Tungsten is the weapon of choice for this component because it is both conductive to electricity, and has a melting point higher than anything you can use it to weld. Different coloured bands are used to discriminate the different treatments applied to the raw tungsten to make it perform better under a certain application. In this case the white banded ones are Zirconiated (the tungsten has been treated with zirconia), and the Red banded ones are Thoriated (treated with very small doses of radioactive Thorium). The Zirconiated tungstens are used for AC welding of aluminium, and the Thoriated are used for DC welding of steel. I use Lanthanated now which is suitable for both. Using an AC/DC capable tungsten means I don't have to remember off the top of my head, which one is for which application (they perform poorly if you guess and get it wrong).
Hope that helps
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3rd Aug 2020, 09:03 PM #6Most Valued Member
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7th Aug 2020, 07:53 PM #7Diamond Member
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You can use the Red thoriated tungstens for welding aluminium too.
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