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Lead-free solder dross converted (Read 3804 times)

Cat_Whisperer Frequent Elocutionist Offline No 1, 9.3x74R Posts: 3996 Location: Mountains of Virginia Joined: Apr 17^th, 2004	Lead-free solder dross converted Dec 27^th, 2014 at 9:50am	Print Post
	It starts out as 96% tin 2% Silver and 1.5% copper - if I remember the ratio correctly. No antimony. Rendered, cleaned and now in ingots - cools VERY slowly.

	Cat Whisperer (trk) Chief of Smoke Pulaski Coehorn Works and Skunk Works Drafted May 1970, Retired Maj. U.S.Army assra #9885
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bnice Frequent Elocutionist Offline Posts: 1999 Location: Iowa Joined: Nov 30^th, 2006	Re: Lead-free solder dross converted Reply #1 - Dec 27^th, 2014 at 10:08am	Print Post
	I'm sorry But I'm just trying to figure out if you are selling or starting to tell us the process to get to pure tin?


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Cat_Whisperer Frequent Elocutionist Offline No 1, 9.3x74R Posts: 3996 Location: Mountains of Virginia Joined: Apr 17^th, 2004	Re: Lead-free solder dross converted Reply #2 - Dec 27^th, 2014 at 10:22am	Print Post
	bnice wrote on Dec 27^th, 2014 at 10:08am: I'm sorry But I'm just trying to figure out if you are selling or starting to tell us the process to get to pure tin? I sell ONLY at the matches I go to. Too much of a pain to package and ship. But, it does pay gas money to the match. The hint here is that lead-free-solder dross / scrap is available wherever a manufacturing company sells it. Not that tough to render, much like doing wheel weights.

	Cat Whisperer (trk) Chief of Smoke Pulaski Coehorn Works and Skunk Works Drafted May 1970, Retired Maj. U.S.Army assra #9885
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Old-Win Frequent Elocutionist Offline Posts: 1855 Location: Minnesota Joined: Nov 24^th, 2005	Re: Lead-free solder dross converted Reply #3 - Dec 27^th, 2014 at 10:54am	Print Post
	Cat, Have you found the copper in the mix to be a problem? With the silver, what is the bhn? Bob


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QuestionableMaynard8130 Frequent Elocutionist Offline Posts: 4144 Location: Benton Harbor MI Joined: Apr 17^th, 2004	Re: Lead-free solder dross converted Reply #4 - Dec 27^th, 2014 at 1:28pm	Print Post
	What's the source on those ingot molds? too much lead to mess with little 1# molds. what sort of industry uses that much PB free silver solder?

	sacred cows make the best burger
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drinks Ex Member	Re: Lead-free solder dross converted Reply #5 - Dec 27^th, 2014 at 4:07pm	Print Post
	Any business that makes potable water products that are soldered.


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Cat_Whisperer Frequent Elocutionist Offline No 1, 9.3x74R Posts: 3996 Location: Mountains of Virginia Joined: Apr 17^th, 2004	Re: Lead-free solder dross converted Reply #6 - Dec 27^th, 2014 at 4:44pm	Print Post
	Old-Win wrote on Dec 27^th, 2014 at 10:54am: Cat, Have you found the copper in the mix to be a problem? With the silver, what is the bhn? Bob I've sold several hundred pounds at matches over the last 4 years. So far nothing but good reports. I THINK most of the silver plates out on the copper wires that are dipped into the molten solder (in solder pots). Hardness - tested ONE sample with was 42 or 43 on Rockwell B scale - almost identical to that of a copper jacketed bullet. This stuff just works. Certainly not 99.9% pure; more like 98%.

	Cat Whisperer (trk) Chief of Smoke Pulaski Coehorn Works and Skunk Works Drafted May 1970, Retired Maj. U.S.Army assra #9885
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Cat_Whisperer Frequent Elocutionist Offline No 1, 9.3x74R Posts: 3996 Location: Mountains of Virginia Joined: Apr 17^th, 2004	Re: Lead-free solder dross converted Reply #7 - Dec 27^th, 2014 at 4:48pm	Print Post
	QuestionableMaynard8130 wrote on Dec 27^th, 2014 at 1:28pm: What's the source on those ingot molds? too much lead to mess with little 1# molds. what sort of industry uses that much PB free silver solder? The ingot moulds are the simple cast iron moulds for corn bread. Found from time to time at flea markets. Which industry? Where I work we make electric motors. The windings have to be connected - wires are stripped and then dipped in flux and then dipped in solder - in a pot with an ID of 2" and about 1-1/2" deep, temperature controlled. Operators occasionally will scrape the top layer off and that goes into a bucket for scrap.

	Cat Whisperer (trk) Chief of Smoke Pulaski Coehorn Works and Skunk Works Drafted May 1970, Retired Maj. U.S.Army assra #9885
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Cat_Whisperer Frequent Elocutionist Offline No 1, 9.3x74R Posts: 3996 Location: Mountains of Virginia Joined: Apr 17^th, 2004	Re: Lead-free solder dross converted Reply #8 - Dec 27^th, 2014 at 4:54pm	Print Post
	Quote: Any business that makes potable water products that are soldered. I do have 30 lbs or so of 'lead-free solder' that is in 1 lb bars; but it is 95% tin and 5% antimony. It was for plumbing purposes. I use it only when alloying with wheel weights or were I don't care about the hardness from antimony in the alloy.

	Cat Whisperer (trk) Chief of Smoke Pulaski Coehorn Works and Skunk Works Drafted May 1970, Retired Maj. U.S.Army assra #9885
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