The injection molding of liquid silicone rubber parts (LSR) is a process to produce pliable, durable parts in high volume. Liquid silicone rubber(LSR) is a high purity platinum cured silicone with low compression set, great stability and ability to resist extreme temperatures of heat and cold ideally suitable for production of parts, where high quality is a must. Due to the thermosetting nature of the material, liquid silicone injection molding requires special treatment, such as intensive distributive mixing, while maintaining the material at a low temperature before it is pushed into the heated cavity and vulcanized.
Liquid silicone rubber Parts (LSR) is a high purity platinum-cure silicone, which is used in a wide range of industries. This material is favored by medical device manufacturers because of its biocompatibility, excellent part quality, and potential for reduced risk of contamination when manufactured in a clean-room environment.
In order for the liquid injection molding process to fully occur, several mechanical components must be in place. Typically, a molding machine requires a metered pumping device in conjunction with an injection unit—a dynamic or static mixer is attached. An integrated system can aid in precision and process efficiency. The critical components of a liquid injection molding machine include injectors, metering units, supply drums, mixers, nozzle, mold clamp, etc.
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