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DIY Resistance wire
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SilverSolder:

You need a different flux for soldering stainless steel,  then it works just fine!

Great idea...
Labrat101:

--- Quote from: Benta on January 14, 2022, 08:09:08 pm ---AFAIK, 0.05 ohm is the same as 50 milliohms.
I also get 125 W (P = I2R)

I don't understand your specifications/calculations here.
Perhaps this would more be something for allaboutelectronics or electronics-tutorials. Those sites don't really fact check.

--- End quote ---
Your maths are correct . The unit i'm working on is a multi stage I forgot about the power
sharing over 8 stages . Each shunt is only handling 1/8th of the total loading .
I just had the one section under test . sorry for the confusion my bad .
Labrat101:

--- Quote from: RoGeorge on January 14, 2022, 08:22:23 pm ---He, he, nice idea!   :-+

If it doesn't solder well, try to solder under a drop of oil.  Oil will keep away the Oxygen so it won't oxidize the soldering zone.  Either motor oil or sunflower cooking oil could work, the idea is to keep the melted solder under oil while soldering.

This works to solder on Aluminum, so I suspect it might help soldering on this kitchen steel sponge, too.

--- End quote ---
Cooking oil has a flash point about 280 -320 C . solder is melting around 330c depending on what
type . Plus it will Blue the Tip .  I will save the oil for cooking Eggs etc .
I did not solder it I used wedge lock push the wire into a thin copper tube with a brass wedge when
pulled it locks and then solder to the copper .
 or crimping it also works fine .
RoGeorge:

--- Quote from: Labrat101 on January 14, 2022, 09:47:52 pm ---
--- Quote from: RoGeorge on January 14, 2022, 08:22:23 pm ---He, he, nice idea!   :-+

If it doesn't solder well, try to solder under a drop of oil.  Oil will keep away the Oxygen so it won't oxidize the soldering zone.  Either motor oil or sunflower cooking oil could work, the idea is to keep the melted solder under oil while soldering.

This works to solder on Aluminum, so I suspect it might help soldering on this kitchen steel sponge, too.

--- End quote ---
Cooking oil has a flash point about 280 -320 C . solder is melting around 330c depending on what
type . Plus it will Blue the Tip .  I will save the oil for cooking Eggs etc .
I did not solder it I used wedge lock push the wire into a thin copper tube with a brass wedge when
pulled it locks and then solder to the copper .
 or crimping it also works fine .


--- End quote ---

So you think I was pulling your leg?  No.

I've soldered on Aluminium under a blob of oil.  Works just fine, something like this (not my video):


I was using sunflower oil, pour a little more oil than in that video, and I was using a soldering gun, where the tip is just a piece of solid copper wire that has to be replaced very often anyway, because soldering alloy slowly disolves the copper.  My soldering gun looks like this one (note how the tip is just a piece of solid copper wire):


Also, Sn/Pb 60/40 melts at about 180-190 Celsius, not at 330.  Your assumptions were incorrect.  When in doubt, it is better to ask "how's so" than to wrongly assume.   :-//
Refrigerator:
I used a galvanized steel wire for a shunt once.
Steel is not great but that shunt was not going to get hot and was also easy to solder because of the zinc plating.
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