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A comment on Check Out These Self-Soldering Sleeves from World War II.

Re:Check Out These Self-Soldering Sleeves from World War II by philip1209 on Friday February 02, 2024 @05:08AM (#39227032)
Interesting - so it's not thermite? That's what I expected.
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Re:Check Out These Self-Soldering Sleeves from World War II by jebarker on Friday February 02, 2024 @06:11AM (#39227387)
Wouldn't thermite destroy the wires rather than soldering them?
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Re:Check Out These Self-Soldering Sleeves from World War II by philip1209 on Friday February 02, 2024 @08:34AM (#39228353)
Depends. It's used for welding, and the output is iron (magnetic):

https://www.youtube.com/watch?v=5uxsFglz2ig

I assume it would be too difficult to trigger the thermite reaction in the field with WWII tech, among other problems.

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Re:Check Out These Self-Soldering Sleeves from World War II by bmulcahy on Friday February 02, 2024 @06:16AM (#39227416)
So, a weld instead of solder!
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Re:Check Out These Self-Soldering Sleeves from World War II by fullspectrumdev on Friday February 02, 2024 @07:27AM (#39227837)
The pyrotechnic compound on the outside only has to get hot enough to melt the solder and flux inside the copper fitting.

I have no idea what the composition on the outside actually is - it’s pretty slow burning at least.

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