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Process that involves an integrated system for proportioning,
mixing, and dispensing dual-component liquid resin formulations
and directly injecting the resultant mix into a mold which is
clamped under pressure. During LIM, pumping systems deliver a
two-part liquid silicone (catalyst and crosslinker) directly
into a mixer for homogenization. Using a relatively low
pressure, the mix is then injected directly into heated mold
cavities in as little as 3 to 10 seconds. Molding and
vulcanization (curing) occur inside the mold cavities within 10
to 90 seconds due to the high mold temperature. This all takes
place within a completely closed system, which helps assure
cleanliness. LIM process offers many
benefits, including:
- Cleanliness with minimized contamination risk
- No material preparation labor
- Lower injection pressure
- Faster cycle rates
- Consistent part quality
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Molding
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