Step
1
The silicone mold for the spin casting production run is created by spacing the
prototype in high heat resistant rubber silicone. A rubber
silicone mold is placed into the frame and then the prototype
part is strategically placed into the mold for even distribution
and efficiency.
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Step
2
Alignment accuracy is ensured by the placement of special
pins around the rim of the compound before securing each half
of the mold in the frame. The purpose of these pins is to
maintain alignment of the mold. Mold release is sprayed onto
the rubber silicone for easy separation of the mold after
pressure has been applied from the vulcanizer. (see step #3)
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Step
3
The framed mold is placed between precision ground heat plates,
which evenly distributes heat while manual jacks are set to
produce the necessary pressure. After approximately one hour
the Vulcanizing process is complete. The silicone mold is then removed
from the Vulcanizer using heat resistant gloves and allowed
to cool.
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Step
4
Gates are then carefully grooved into the mold to assure that
maximum flow of molten material will reach every cavity within
the prototype impression. This step is necessary for proper
distribution of metal throughout the prototype, eliminating
pockets of air.
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Step
5
The mold is then secured in the Spin Casting machine which can accommodate
any mold thickness up to four inches without the need for
spacers. The Spin caster can also accommodate silicone mold and frame
diameters of 9", 12", 15", and 18".
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Step
6
The molten material is poured into the Spin Casting funnel.
The centrifugal force sends the molten alloy into even the
most intricate mold patters. This ensures great detail within
the prototype mold and will eliminate unnecessary finishing
for most parts.
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Step
7
In only seconds, the production parts are set and readied
for easy removal. The special pins allow for the efficient
assembly and realignment of the mold for future use. THIS
PROCESS TAKES TWO HOURS - FROM START TO FINISH!
