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The move from silicone to micro moulding

  • The move from silicone to micro moulding

    The continuous growth of minimally invasive surgical procedures, the increasing demand of high precision medical devices and the latest advanced manufacturing technological developments are leading towards a new trend of small and precise silicone components manufactured under new micro-techniques that conventional injection moulding processes are unable to achieve.Get more news about Silicone Injection Mould,you can vist our website!

    Micro injection moulded parts

    The new micro injection technologies allow the precise manufacturing of silicone parts weighing only a few milligrams (a range of 10 milligrams is generally used to define the border), components with strict tolerances (for example for high precision valves) and for conventional injected parts having some particular or critical micro structured zones (for example thin section membranes)

    Silicone micromoulded components are increasingly used in minimally invasive surgical devices, in small and precise fluid control activities (valves, septums and seals), in devices fitted with microsensors, in precision overmoulding operations and in many components in general designed with challenging geometries or with high precision requirements.
    “In Cikautxo Medical, for a high quality mass production manufacturing of technically complex silicone micro injected components, we pay special attention to the following manufacturing key aspects” says Iker Principe, CEO in Cikautxo Medical, the medical division of Cikautxo Group.
    Raw Materials

    Extremely accurate silicone parameters with repetitive formulations and stability over the time and over different batches are required from advanced liquid silicone suppliers to minimize potential variations in the part manufacturing process. Incoming inspections and testing are regularly made to raw materials by our silicone experts in our internal Cikatek laboratory.

    Machinery management: for medical applications fully electrical liquid silicone (LSR) injection moulding machines are preferred for high volume manufacturing scenarios in a cleanroom environment. Special emphasis has to be made in using a very precise dosing system. On top of it, in order to maintain the microinjected component within the strict tolerance limits, it is key to monitor the capability process index (Cmk) to achieve a good dimensional capability process index (Cpk)

     

    Only high skilled and selected technicians are capable of defining and setting up the LSR injection moulding processes using parametrical profiles for a proper cavity load and control over the production run. Those parametrical profiles are created matching the best injection parameter combinations and defining an area where the parts produced meet the quality requirements. Any injection cycle outside this area will lead to an automatic refusal of the cycle so that the quality can be automatically assured.

      January 13, 2023 12:45 AM MST
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