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Thermocouple soldering

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#59109

Thermocouple soldering | 23 June, 2009

We use teflon covered thermocouple wires. I can't seem to do a decent job of cleaning the wires to get a good high temp. solder ball on the tip between wires when I need to repair one. Any tricks to it?

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#59110

Thermocouple soldering | 23 June, 2009

I don't know about removing the teflon insulation, but we weld our thermocouples.

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#59111

Thermocouple soldering | 23 June, 2009

Are you sure there is any "cleaning" needed? Can you see leftover bits of the teflon remaining? If so, work on it with an Xacto knife. But, most thermocouple wires are VERY hard to solder - as in practically impossible. Many of them have aluminum, nickel or chromium in them, typically hard to solder metals. That's why the spot-weld them.

Jon

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