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Tinning Copper Bus Bars
#1
Has anyone tried tinning copper bus bars?

I notice the Nissan Leaf bus bars are solid copper, tinned - So they don't oxidise or rust etc. 

I tried tinning a small piece of copper bus bar last night in the shed with a MAP blowtorch and some solder.. But it didn't stick. My guess is the copper has to be sparkling clean.
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#2
The bus bars are probably electroplated with tin.
https://vimeo.com/48639930 here is the same person in a hackaday article with step by step instructions https://hackaday.com/2012/10/14/diy-tin-...-bus-bars/

Later floyd
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#3
Im building a custom leaf module system - So the copper bars are just that.. Copper. I was hoping to tin them after cutting to length and drilling all the holes.

Edit: sorry, I misread your post. Yes your probably correct - electroplating is probably how they were made.

There are some tin plating vids on YouTube that use heat.. but I’ll take a look around and have some experimentation.
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#4
(02-13-2020, 07:28 AM)slimf Wrote: Im building a custom leaf module system - So the copper bars are just that.. Copper. I was hoping to tin them after cutting to length and drilling all the holes.

Edit: sorry, I misread your post. Yes your probably correct - electroplating is probably how they were made.

There are some tin plating vids on YouTube that use heat.. but I’ll take a look around and have some experimentation.
Hello

Use a zinc chloride tinning fluid for radiators. It will clean off all the oxidation.  Using paste flux burns up too easy and leaves a carbon residue         and makes tinning impossible.

When using a torch it is easily heats up the copper too quickly , go slow and you will tin the buss bar easily.

What I use      https://www.ebay.com/itm/FLUX-LIQUID-Sol...4460!US!-1

Jim
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#5
Thanks!dumb question.. what do you use to tin?

Do you use regular solder or is pure tin available?
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#6
pure tin is available , Not sure if that is what you use for tinning bus bars.
https://www.amazon.com/s?k=pure+tin&i=in..._sb_noss_1
Later floyd
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#7
(02-13-2020, 04:26 AM)slimf Wrote: Has anyone tried tinning copper bus bars?

I notice the Nissan Leaf bus bars are solid copper, tinned - So they don't oxidise or rust etc. 

I tried tinning a small piece of copper bus bar last night in the shed with a MAP blowtorch and some solder.. But it didn't stick. My guess is the copper has to be sparkling clean.


This got me looking into electroplating and I tried researching tin but found it's not as readily available as nickel plating. Nickel plating seems to be far easier to do, with only distilled white vinegar and salt. Nickel is easy to get as well, I'm trying to see which of my scrap nickel tabs are actually pure nickel now and going to the grocery store to get some vinegar as we speak.

https://www.youtube.com/watch?v=e2AbyahtaaI
https://www.youtube.com/watch?v=8dF2nKDAtEg
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#8
(02-13-2020, 08:35 PM)slimf Wrote: Thanks!dumb question.. what do you use to tin?

Do you use regular solder or is pure tin available?
Most lead free solders have alot of tin in them, or any lead based solder . Hopefully not in California every thing there causes cancer

Jim
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#9
Thanks for the replies. I’m going to give nickel a go. I’ve purchased some anodes from eBay and will take some photos of how it goes with a test strip of copper.
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#10
Nickel plating success with 18650!

Finally got the distilled white vinegar, put in couple scraps of nickel strips for 24hrs, then plated a copper penny!

Korishan, ERBR1516, floydR like this post
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