moldflow services

moldflow services
moldflow services
moldflow consultant
moldflow analysis consultant

Solutions for Medical Device Manufacturers.

Long development times and FDA (USA) , MHRA (UK) or TGA (AU) regulations often constrain the production design of a new medical device. Imtech have conducted Moldflow analysis to identify the optimum feed points or solve molding problems without compromising regulatory approved design.

Moldflow Flow Analysis for under bonnet moldings Asthma Inhaler

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Moldflow for Automotive molding - This result shows the filling pattern through a typical Asthma inhaler.

Imtech have analysed many different medical device components including inhalers, tablet and powder delivery devices, syringe parts, hearing aids, tracheotomy tubes and colostomy devices connections.

Moldflow Flow Analysis for under bonnet moldings
Tablet Dispenser

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Click to view Moldflow Results - This result shows the polymer freeze time through the cross section of a medical device body molding.

Medical devices are often produced from exotic materials, fortunately the Moldflow includes extensive materials database and holds information on over 7500 different polymers and is expanding all the time.The database covers commodity materials to glass or carbon fibre filled engineered thermoplastics.

Moldflow Engineers Flow Analyse plastic moldings.

Our simulation tool kit includes Moldflow MPi - mould filling, cooling, holding phase, part warpage and shrinkage analysis. Gas injection, fibre orientation and core shift options are also available. A simulation highlights most quality problems including: - high fill pressure, short shots, weld lines, gas traps, high gate shear, poor cooling, long cycle times and distortion.

Filling results include:

- Fill time
- Injection pressure
- Pressure at transfer
- Melt-front temperature
- Bulk temperature
- Weld lines
- Air traps
- Shear rate / Shear stress
Holding / Packing results include:

- Volumetric shrinkage
- Pressures
- Temperatures
- Velocity
- Freeze times
- Accurate clamp force prediction


Cooling results for the cavity:

- Cavity surface temperature distribution
- Distribution of temperature differences across opposite surfaces of the cavity
- Distribution of average plastic temperature at ejection time
- Distribution of maximum plastic temperature at ejection time
- Relative position of the peak temperature at ejection time
- Distribution of frozen layer thickness
- Temperature profile through thickness for each cavity element

Cooling results for the mold:

- Surface temperature distribution on both sides of inserts and parting planes
- Distribution of temperature difference across insert and joint line surfaces
- Temperature of mold external surfaces and surface of cooling circuits
- Pressure drop along each cooling circuit
- Variation in coolant temperature through each cooling circuit
- Flow rate in each cooling circuit
- Reynolds number in each cooling circuit

Shrinkage and Warpage results include:

-Total deformation
-Deflection in the X-, Y-, and Z-directions
-Deflection history at any node
-Deflected component shape with exaggeration factor
-Buckling mode shape
-Elemental parallel and perpendicular shrinkage
-Elemental principal residual stress
-Elemental Mises-Hencky stresses
-Elemental maximum shear stress

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Moldflow, Filling, Cooling, Warpage analysis, weld lines, flow lines, fiber orientation, polymer flow, rapra, part advisor
Moldflow, Filling, Cooling, Warpage analysis, weld lines, flow lines, fiber orientation, polymer flow, rapra, part advisor
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moldflow services
moulding analysis consultant
moulding analysis consultant