 #950
Alloy
Thank you for using UNITED'S alloys.
UNITED'S #950 ALLOY may be used for 10K - 18K white gold casting,
which produces a white finished color. #950 contains a reduced
silicon deoxidizer.
You should obtain excellent results by following a few simple
instructions.
MELTING
| Melt Temperature for 10k Alloyed Grain |
1030°- 1040°C |
1886°-1904°F |
| Melt Temperature for 14k & 18k Alloyed Grain |
1000°- 1020°C |
1832°-1868°F |
| Melt Temperature for Alloying |
1060°- 1070°C |
1940°- 1958°F |
We do recommend pre-graining all alloy and fine gold before
casting to assure a uniform mixture.
FLASK TEMPERATURE
We suggest a slightly higher flask temperature for white gold.
FLUXING
Fluxing white gold is extremely important to pick-up oxides. Boric
Acid is the recommended flux. Do not use carbon fluxes or any fluxes
designed for refining; i.e. soda ash, saltpeter, etc. Avoid flux in
bottom pour automatic casting units.
QUENCH TIME
8 - 12 minutes
INVESTMENT REMOVAL
Most standard investment removers will successfully remove the
investment powder. Fluoric-based investment removers are the best
for removing the silicon oxide invisible coating. UNITED'S Brite-Cast
Investment Remover also works very well.
REMELTING
We recommend a 70% fresh - 30% scrap mix. White gold alloy has about
1/3 the reusability of yellow gold alloys.
NOTES
Melt temperature may vary with type of unit. This alloy is designed
for casting only.
TECHNICAL ASSISTANCE
Always available…
Call 1-800-999-3463 / 1-800-999-FINE
E-mail / doc@unitedpmr.com
Web-Site / www.unitedpmr.com |