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https://jewelry.lovetoknow.com/gold-jewelry/reusing-old-gold-make-new-jewelry
Re-Casting Gold Jewelry In some cases, your old gold jewelry can be completely melted down to make something new. This may sound ideal if you have a piece with …Author: Kate Miller-Wilson
https://reflectivejewelry.com/news/reusing-old-gold-to-make-a-new-wedding-ring
Because we're melting it down, we can use gold from any source to repurpose old jewelry. And, it doesn't matter so much if we end up mixing carats. We can combine a 10K ring with a 14K ring, melting together.
https://www.ehow.com/how_6777421_do-purify-using-common-materials_.html
Aug 30, 2017 · Sodium carbonate. Blow torch (oxy-acetylene) Crucible tongs. Bar-type mold. Melting gold at home using everyday materials. You can melt scrap gold at home to purify it using a few specialized tools and some common materials you can purchase at your local hardware store. Pure gold is 24 karats and has a melting point of 1,940 degrees Fahrenheit. If a piece of gold jewelry is labeled …
https://www.finishing.com/328/94.shtml
Nov 22, 2010 · A. Gold and other fine jewelry that starts off as a cast piece is made from a process called vacuum casting, the hot metal is poured in a molten state into the mold then the pressure in the mold is reduced to about 2.0 atmospheres or so (which if memory serves is not very much).
https://www.youtube.com/watch?v=37Kn-kIsVu8
May 29, 2019 · Instagram: https://www.instagram.com/nile.redFollowup video on my other channel: https://youtu.be/NuYDQtev1bEA few months ago, one of my patrons sent me a bu...Author: NileRed
https://www.debrafallowfield.com/news/can-you-use-my-old-jewellery-to-make-something-new/
Yes,I can melt down your old gold and use that EXACT gold in a new piece.This is great especially if the original jewellery holds sentimental value. *Keep in mind often there is’nt actually enough gold weight in old or antique jewellery,I will weigh your pieces to give me some idea,often we may need to add extra gold to achieve the complete piece.(my work is rather heavy compared to other jewellery)
http://www.mardonjewelers.com/blog/the-problems-in-making-jewelry-from-old-gold/
Melting “old gold” to make new jewelry is not the best practice of jewelry making for several reasons. First, karat gold alloys are made with a specific use in mind. The manufacturers of gold alloys pay metallurgists big dollars to precisely engineer their alloys for color and use, then jealously guard these recipes as proprietary trade secrets– some alloys, like Peach Gold, are even patented.
https://ftjco.com/pages/can-you-use-my-old-jewellery-to-make-something-new
Instead, we can offer you credit for your old gold or platinum scrap and apply it to a new purchase. Melting down old jewellery to make a new piece makes the metal weaker (and thus more prone to porosity and cracking, and losing stones) and quality is always poorer than when you use 'fresh' metal. We can often use gems and diamonds from the old piece to make a new one.
https://www.callagold.com/custom-design/why-not-re-use-your-old-gold/
My gold refiner agreed to refine her small amount of gold. Refining it removes the alloy metals as much as possible from the gold content. We added 50% new gold to the mix and alloyed it freshly. After her single casting was done, I gave her the leftover sprue of gold…
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