Help-solder/gold remover needed

[BJREBUCK]

Hi Mike, I Work For Chevron (34 Yrs) As A Mechanical Designer Currently With The Technology Marketing Group. Gunsmith Evenings (21 Yrs) Speciality Is Restoration/refinishing. Learning Engraving As Time Permits To Augment The Restoration Projects.

 

[gail.m]

Re: pink & blue gold

" I would never inlay pink gold without a copper backer into something like a folding knife for fear of distorting something. -------All that to say, that has been my experince, and similar expereinces have been noted on other threads on this forum, but if you have a recipe for rose gold that is softer... I am all ears. I am also seeking the eternal secret of making blue gold."
thanks
Scott

Hello Scott,
Because I lack hardly any experience doing inlay, I have a question: wouldn't it be better to have a 999 silver backer for your rose and pink golds? It would stay softer longer than copper, I would think?
Also, I don't know about blue, but you can make a purple gold by alloying it with aluminum.( I could research the process if you are interested) It is very brittle, but is often set in rings, the same as a stone. I wonder if it could be inlayed in a simple way such as a small dot, or a square, on a flat surface?
FWIF.
gailm

 

[pilkguns]

Gail,
I guess the answer is because copper is cheaper, it does work harden much faster than 24K gold, but pure copper in its soft state is soft enough to work with for the inlay process. I am sure silver would work fine, I just never thought about it... although in the overall scheme of things, the cost of silver is neglible.

 

[Marrinan]

http://jewelrydirectory.org/article2.html was on a previous thread as a source for the formulas of colored gold.
I quote:
The following is a sampling of some colors of gold and their composition. I start the list with a key to the symbols used to identify the various metals.

Symbol = Metal
Au = Gold
Ag = Silver
Al = Aluminum
Cu = Copper
Cd = Cadmium
Fe = Iron
Ni = Nickel
Pd = Palladium
Pt = Platinum
Zn = Zinc


Yellow Gold, 22 Karat
Au 91.67% - Ag 5% - Cu 2% - Zn 1.33%

Yellow Gold, 18 Karat
Au 75% - Ag 10% - Cu 10% - Zn 5%

Red Gold, 18 Karat
Au 75% - Cu 25%

Rose Gold, 18 Karat
Au 75% - Cu 22.25% - Ag 2.75%

Pink Gold, 18 Karat
Au 75% - Cu 20% - Ag 5%

Green Gold, 18 Karat
Au 75% - Ag 20% - Cu 5%

Light Green, 18 Karat
Au 75% - Cu 23% - Cd 2%

Deep Green Gold, 18 Karat
Au 75% - Cu 6% - Ag 15% - Cd 4%

Blue Gold, 18 Karat
Au 75% - Fe 25%

Purple Gold, 18 Karat
Au 80% - Al 20%

White Gold, 14 Karat
Au 58.33% - Ni 15% - Cu 10% - Zn 16.67%

White Gold, 14 Karat
Au 58.33% - Pd 14% - Zn 11% - Ag 16.67%

White Gold, 18 Karat
Au 75% - Pt or Pd 25%

White Gold, 18 Karat (No. 2)
Au 75% - Pd 10% - Ni 10% - Zn 5%

Gray White Gold, 18 Karat
Au 75% - Cu 8% - Fe 17%

Yellow Gold, 14 Karat
Au 58.33% - Cu 31.2% - Ag 4% - Zn 6.47%

Yellow Gold, 12 Karat
Au 50% - Cu 34% - Ag 16%

Green Gold, 12 Karat
Au 50% - Cu 6% - Ag 44%

Dark Green Gold, 12 Karat
Au 50% - Cu 10% - Ag 40%

Red Gold, 12 Karat
Au 50% - Cu 50%

There are many other formulas for making gold in different colors, These are just some of them.

Another method used in coloring gold takes place when gold is plated on the surface of other base metals. This plating process yields a very thin coat of gold and the color is determined by the solution and type of electrode used in the process.

Until next time,
Isidro

Sorry if I stepped on toes with coping the data from the web page-Fred