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The FREE PRESTUDY on MuCell technology is available until 30/11/2020
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Engel Victory 120 tons injection molding machine is available for real MuCell tests.
A technology concerning physical foaming of the polymer by mixing it with nitrogen at its supercritical condition.The MuCell® process dedicated to technical products decreases the viscosity of thermoplastic resins by injecting into the melt small amounts of gas which, expanding in cavity, creates a microcellular structure of the moulded part.
The use of Mucell microcellular foaming gives several benefits such as:
- lightweight of moulded parts
- elimination of sink marks in all component surface
- maximum reduction or total elimination of moulding residual stresses
- reduction of moulding cycle time
- reduction of polymer viscosity
- reduction of the clamping force required by injection machine
Benefits
Moulds cavity
- expansion replaces the packing pressure
- lower clamping force
- less design limits
- reduction of cycle time
Injection unit and energy saving
- lower viscosity
- better filling
- dedicated design and gate positioning
- process temperature reduction and energy saving
Components
- reduced part weight
- high reduction of warpage
- less shrinkage
- strong reduction of sink marks
- high aesthetics
- accurate textures replication
- elimination of visible welding lines on the part’s surface
- possible decrease of injection pressures since the progressive cooling of melt during filling is less quick
Benefits
- excellent surface quality: glossy or matte, invisible welding lines
- improved brilliance of blacks and colors
- avoiding halos
- possible thickness reduction
- better propagation of packing pressure
- sink mark reduction
- reduction of aesthetic defects (gate marks, sink marks reduction
- reduction of aesthetic defects (gate marks, streaks …)
Benefits
Viscosity reduction during filling
- increase of flow length
- possibility to fill thin thicknesses
- reduction of injection pressure
- increased strength of welding lines
Better propagation of holding pressure
- better material packing
- reduction of sink marks
- improved dimensional stability
- reduction of warpage
Injecting the material in a very hot cavity
- excellent glossy surfaces (gloss, Piano Black effect…)
- chance to avoid painting
- improved quality of texturised and grained surfaces (matte, gloss reduction …)
- not visible welding lines
- elimination of flow marks, streaks … increase in crystallinity and mechanical properties
Benefit
- significant reduction of cooling time and, consequently, of cycle time
- elimination of hot spots
- uniform mould temperature
- conditioning of very thin cores
- no liquid refrigerants and hydraulic sealings are required
Benefits
- control of production processes
- part quality control
- possibility to set, during mould piloting, the ideal process conditions for both machine and mould
Benefits
- high mechanical performance of the component
- technology suitable for metal replacement
- easy industrial scalability
- reduced cycle-times, comparable to standard injection moulding
- no need to use chemicals and curing as for thermosetting
- better environmental sustainability
- no shelf life limitations as for thermosettings
Benefits
- homogeneity of melt temperature
- better control of cell distribution
- not inflammable
- applicable to all polymers
- eco-friendly: physical expansion without the use of foaming agents
Benefits
- surface quality improvements: Class “A” large surfaces, grained surfaces, aesthetical parts
- high process repeatability
- safe, clean and dry (no oil, no liquids)
- easy to use
- optimal flow balancing
- warpage reduction
- clamping force reduction up to 20%
Benefits
- high components customization
- low tooling cost
- possibility to use a wide materials range