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Note: Graphic reflects both technology and company acquisitions, ownership of parent company is not implied
ECOTECT
$500M+
Simulation
Investment
230+ Direct
Development
Staff
Simulate the flow of melted plastic to help optimize part and mold
designs, reduce potential part defects, and improve the molding
process
Viscosity v s She ar R ate at 0M Pa
10
100
1000
10000
10 100 1000 10000 100000
S he a r Ra te [1/s]
Vis
co
sit
y [
Pa
.s]
290 310 330
Viscosity v s She ar R ate at 290oC
10
100
1000
10000
10 100 1000 10000 100000
S he a r Ra te [1/s]
Vis
co
sit
y [
Pa
.s]
0 M P a 50 M P a 100 M P a
Arburg 35 ton Arburg 160 ton
Arburg 35 ton
Battenfeld 150 ton
2 * Krauss Maffei 160 ton
Melbourne, Australia
Ithaca, NY, USA
1:8
43
4
ADdE
lFF
ff
im
criti
Tension Zero Zero Compression
Dinh & Armstrong Model / Critical Buckling Force
Cb: Strain Rate Coefficient Parameter
: Dimensionless Drag Coefficient (Dg)
PP, 20% talc filled Sumitomo, Noblen BZE62F5B
0
2000
4000
6000
8000
10000
12000
0.9
0.95
1
1.05
1.1
1.15
1.2
1.25
0 100 200 300
Sp
ecif
ic H
eat
[J/k
g-C
]
Sp
ecif
ic V
olu
me [
cm
^3/g
]
Temperature (deg.C)
Specific Volume
Specific Heat
25
G(T) N(T, Ff)
T
TTfTT
TTT
Kf
TTR
UGTG
m
g
m
g
2 ,30
,exp*
exp)(
0
00
),(1
)(ln0
0
0
TFfNN
bTTaN
NNN
ff
N
f
NmN
f
)(exp1
)()(
)()(3
4
2
0
3
0
0
dsduuGsL
dsduuGsN
t
s
t
total
t
s
t
(Growth
Rate)
(Nuclei number
density)
Hadinata et al.
PPS 23
aN, bN, T0m, G0 & Kg
Are determined from
DSC Experiments for
each material grade
28
Uncorrected (no CRIMS) shrinkage in the flow direction for an Amorphous non-fiber material. (HIPS) Perpendicular Shrinkage shows a similar trend.
*Plastics, Rubber and Composites Processing and Applications Vol 20 (3), 1993. pp137-149
40% GF
50% GF