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Moldflow Analysis Report
CASE Sunon_Lower_20140322
2017.3
To analysis original design, cooling and check flow , warp.
ANALYSIS AIMS
P l a s t i c M a t e r i a l I n t r o d u c t i o n
1. Melt Density 0.93839 g/cu.cm2. Solid Density 1.0541 g /cu.cm3. Ejection Temperature 85 deg.C4. Recommended Mold Temperature 60 deg.C5. Recommended Melt Temperature 250 deg.C6. Absolute Max. Melt Temperature 290 deg.C
7. Melt Temperature Minimum 230.0 deg.C8. Melt Temperature Maximum 270.0 deg.C9. Mold Temperature Minimum 40.0 deg.C
10. Mold Temperature Maximum 80.0 deg.C11. Maximum Shear Rate 50000.00 1/s12. Maximum Shear Stress 0.300 MPa
Viscosity model
PVT profile
ABS Cycolac GPM5500 : SABIC Innovative Plastics B.V.
The customer not supply the grade of material, so we choose a general material.
P a r t I n t r o d u c t i o n
The mostly wall thickness of part is imbalance shown by picture.
Cooling System Design
The cooling system is shown by picture, the diameter of channel is 8.0mm .
Case1
F e e d S ys t e m D e s i g n
1x2 cavities， three plates mold, Cold runner +Pin gate, the size is shown by picture.
Pin gate 1.4mm
Processing conditions
PRESSURE [MPa] STEP DURATION [sec]
65.7 0.0
65.7 10.0
Filling Conditions :
Mold temperature : 60.00 deg.C
Melt temperature : 250.00 deg.C
Injection time 1.3sec
Cooling Conditions:
Coolant Temperature(Cavity) 50 deg.C
Coolant Temperature(Core) 50 deg.C
Packing Profile :
Fill time
Shown by picture the flow status is imbalance, causeshort shot, because the gate close to the thin place.
Fill time
Shown by picture the flow status is imbalance, causeshort shot, because the gate close to the thin place.
Case2
F e e d S ys t e m D e s i g n
1x2 cavities， three plates mold, Cold runner +Pin gate, the size is shown by picture.
Pin gate 1.4mm
Processing conditions
PRESSURE [MPa] STEP DURATION [sec]
60.3 0.0
60.3 10.0
Filling Conditions :
Mold temperature : 60.00 deg.C
Melt temperature : 250.00 deg.C
Injection time 1.7sec
Cooling Conditions:
Coolant Temperature(Cavity) 50 deg.C
Coolant Temperature(Core) 50 deg.C
Packing Profile :
Fill time
Shown by picture the flow status is imbalance, causeshort shot, because the gate close to the thin place.
Fill time
Shown by picture the flow status is imbalance, causeshort shot, because the gate close to the thin place.
Case3
F e e d S ys t e m D e s i g n
1x2 cavities， three plates mold, Cold runner +Pin gate, the size is shown by picture.
Pin gate 1.4mm
Processing conditions
PRESSURE [MPa] STEP DURATION [sec]
79.0 0.0
79.0 10.0
Filling Conditions :
Mold temperature : 60.00 deg.C
Melt temperature : 250.00 deg.C
Injection time 1.3sec
Cooling Conditions:
Coolant Temperature(Cavity) 50 deg.C
Coolant Temperature(Core) 50 deg.C
Packing Profile :
Circuit coolant Temperature
The circuit coolant temperature of part is balance shown by picture.
Temperature (top),part
Top temperature of part is balance shown by picture.
Temperature (bottom),part
Bottom temperature of part is balance shown by picture.
Fill time
Shown by picture the flow status is balance.
Fill time
Shown by picture the flow status is balance.
Fill time series
Pressure at V/P switchover
The pressure at V/P switchover is 98.7 MPa .
Temperature at flow front
Temperature at flow front is imbalance shown by picture.
Air traps
The magenta circles are possible air traps shown by picture，please attention venting.
Weld lines
The color lines are possible weld lines.
Volumetric shrinkage
Volumetric shrinkage is imbalance show by picture, please attention the setting of packing.
Sink marks estimate
The Sink marks estimate is imbalance show by picture, please attention the setting of packing.
Frozen layer Fraction
Injection Pressure & Clamp Force
Pressure at injection location Clamp Force
Max.: 98.7MPaMax.:63.4Ton
Deflection – All direction
Deflection of All direction is imbalance, possible cause warp.
Deflection – X direction
Deflection of X direction is balance, cause warp is little.
Deflection – Y direction
Deflection of Y direction is balance, cause warp is little.
Deflection – Z direction
Deflection – Z direction is imbalance, possible cause warp.
S u m m a r y
The results：
The flow status is balance, the injection and packing pressure is no
rmal.
The volumetric shrinkage is imbalance, please attention the sett
ing of packing.
Deflection of X&Y direction is balance, cause warp is little. Defle
ction of Z direction is imbalance, possible cause warp.
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