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PREPARE MOLD
Parts or models are
laid out on a disc of soft uncured silicone rubber. The mold parting line is
formed. Mold parting compound is sprayed and the mold halves are mated to
each other. |
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VULCANIZING MOLD
The mold
is placed in a vulcanizing frame and placed into a heated press for curing.
The heat cross-links and cures the silicone rubber. |
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GATING
& VENTING The
gates, runner system and air vents are easily cut into the cured rubber
mold with a scalpel. Metal,
polyurethane plastics, or wax materials can be cast in the exact same mold
for evaluation, if desired. |
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PLACING
MOLD IN SPIN-CASTER
The
mold is placed into the casting machine. The mold is centered and closing
the door actuates a pneumatic clamp. Spin speed, clamping pressure, and
cycle time are adjusted and the spin cycle begins. |
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POURING
& SPIN-CASTING
The
liquid metal, plastic, or wax is poured into the casting machine.
Centrifugal force pushes the liquid through the mold's runner system,
filling every section of the mold cavity. |
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REMOVAL
OF SPIN-CAST PARTS
After
metals solidify and plastics set up, the parts are quickly removed from
the mold. Spin-Casting process can hold tolerances of .001" to
.005" per inch.
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