 #906
Alloy
Thank you for using UNITED'S alloys.
UNITED'S 906 ALLOY may be used for 10K & 14K white gold casting ,
which produces a white finished color. #906 has high fluidity and
contains small amounts of silicon & boron deoxidizers. This alloy
has a good white color and has been proven to perform very well for
Stone-In-Place castings.
You should obtain excellent results by following a few simple
instructions.
MELTING
| Melt Temperature for 10K Alloyed Grain |
1040° - 1055° C |
1904° - 1931° F |
| Melt Temperature for 14K Alloyed Grain |
1035°- 1050° C |
1895° - 1922° F |
| Melt Temperature for Alloying |
1050° - 1060° C |
1922° - 1940° 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 in the
range of 1050 F to 1250 F depending on the size of flask and type of
jewelry styles.
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
15 to 20 minutes after pouring. Quench button first for 30 sec.
INVESTMENT REMOVAL
Most standard investment removers will successfully remove the
investment powder. Fluoric or Phosphoric acid-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.
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 |