 #976
Alloy
Thank you for using UNITED'S alloys.
UNITED'S 976 ALLOY is designed for 14K -18K Nickel & Palladium
Free White gold casting. Since, there are no effective bleaching
elements in this alloy, the castings will have an "off -white" color
with a slight yellowish tint.
You should obtain excellent results by following a few simple
instructions.
MELTING
| Melt Temperature for 14k & 18k Alloyed Grain |
1010° - 1025° C |
1850° - 1877° F |
| Melt Temperature for Alloying |
1050° - 1070° C |
1922° - 1958° F |
We do recommend pre-graining all alloy and fine gold before
casting to assure a uniform mixture.
FLASK TEMPERATURE
We recommend a slightly higher flask temperature for 18K.
FLUXING
Boric Acid is the recommended flux. Use as little flux as possible.
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
20 - 25 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 50% rejuvenation for remelting.
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 |