Electromatic - 4
12
CRUCIBLE SELECTION:
The Induction Casting Crucible, Catalog #N031106, should be used for Chrome-Cobalt, Palladium Based, and
non-precious alloy castings. When melting gold based alloys, a carbon insert, Catalog #N242903 should be used.
MANUAL MODE OPERATION
(a) Adjust the centrifuge counter-balance for smooth spin.
(b) Set the Automatic/Manual mode selector to Manual.
(c) Set the centrifuge acceleration reducer.
(d) Align casting arm with slot on coil guide assembly, then raise the Melt Coil.
(e) Select the appropriate power setting with the Melt Power Level Switch
(f) Place pre-heated crucible in crucible holder.
(g) Load crucible with alloy.
NOTE:
Do not use flux at any time during melting.
(h) Press the Start button
(i) Place preheated mold ring into cradle. Check crucible alignment with sprue hole.
NOTE:
The centrifuge turns clockwise. A slight lead angle (clockwise) of the crucible spout
is advised.
(j) Directly observe melt readiness
(k) Cycle the Start and Stop push buttons to regulate temperature
(l) When ready to centrifuge, close the centrifuge cover. With the Start-Stop circuit latched, press the Coil
Release Switch. The Melt Coil will drop, the casting arm will revolve, and the molten alloy will centrifugally
cast into the mold.
(m) Press the Stop button or open the Centrifuge Cover to stop the centrifuge
(n) Remove flask ring and place on cooling rack.
(o) Remove crucible to clean out slag on tray provided. Do not clean or de-slag crucible while in the
crucible holder.
NOTE:
During the Manual operation, the Temperature Controller, Pyrometer, and soak Timer, will
be out of the circuit.3. SOAK TIMER - (Fig. 12-15)
CAUTION:
A separate crucible and carbon insert should be identified and
maintained for each of the alloys used. Care should be taken to avoid
contamination through mix-ups.
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