Microfluidic injection molding keys

Microfluidic injection molding keys

In microfluidic chips manufacturing, the quality of the injection molded part is a driving factor for a good performance of the part. The injected parts needs to have certain conditions to get a perfect bonding of the channel closing systems, such as perfect edges and a good flatness.

For that purpose, several actions are necessary:

  • Part redesign for mold inserts manufacturing process
    • A proper mold manufacturing process needs to be decided, taking into account the limitation of different technologies, such as nickel inserts, fentosecond laser ablation inserts or micromilling  processes.
    • The proper tool material will need to be chosen to achieve the desired levels of transparency, roughness, lifetime…
  • Part redesign for injection point of view
    • The polymer behaviour when freezing has to be taken into account to redesign the part to have a more robust process in achieving the needed bonding conditions, avoiding shrinkage effects.
  • Best injection process methodology selection
    • Different injection processes can be chosen to get the needed parts. Quality, cycle time, replication requirements, transparency or price can be some factors to decide for going to conventional, variothermal, compression or other injection process methods.
  • Best equipment to assure process repeatability
    • For a repetitive and trustable quality parts of microfluidic components, high precision and repeatability equipment needs to be chosen not only in the injection machine, but also in all the peripherals needed.

Erreka can help you in all those designs and decisions in your microfluidic components, with redesign, mold manufacture, process definition, and parts injection with the defined quality conditions.

If you have enquiry about this issue dont hesitate to contact us sending an email to medical@erreka.com or by fullfilling the form located at the contact area of the website.

Microscope photograph of microfluidic channel on injection molded plastic part. (Master mold with micromilling process).
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