PT ZONE: LIM & LSR Molding

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Rapid expansion of LED technology has spurred development of new formulations for a wide range of lighting components. Here are examples of activity in this fast-moving field. More (+)


MOST RECENT CONTENT: LIM & LSR Molding

LSR Developments in LEDs for Automotive and Street Lighting

LSR’s resistance to UV light and high temperatures allow direct contact to LED, while low injection pressure allows overmolding of sensitive parts.

INJECTION MOLDING: Retrofit Injection Package for LSR

Nordson Xaloy offers complete retrofit kit for standard machines.

MATERIALS: Six New LSRs Target Medical Applications

Dow Corning’s newest liquid silicone rubbers (LSR) for the medical device industry promise improved molding and mechanical properties.

Simulation Meets Reality: Physical & Virtual Molding of LSR

Growing sophistication in simulating the molding performance of LSR is evident in the case of this exceedingly complex part. Actual molding trials validated the predictions of simulated ‘virtual molding.’

MATERIALS: Medical LSR with Reduced Self-Healing

Slit valves stay open in food and pharmaceutical dispensing.

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OVERVIEW:
LIM & LSR Molding

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Liquid silicone rubber (LSR) injection molding is a long established process but it is enjoying an upsurge in interest for medical, automotive, infant care, and general industrial applications. It requires specialty machinery and processing considerations compared to conventional thermoplastics molding. Notably, whereas thermoplastics must be heated in the injection barrel to their melting point, and then cooled in the mold back to a solid state, the reverse occurs with LSR. It starts out as a fluid and is then heated within the mold to initiate curing.


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