2. Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2
385,33 145,17 845,33 509,33 1278 859,5 478,83 321,5 956,5 708,17 1394,7 1052
Sensors
Mold Pressure Avg
Pressure Drop (%)
PRESSURE DROP BETWEEN THE TWO PRESSURE SENSORS
CONVENTIONAL TECHNOLOGY (90Ā°C) ROCTOOL TECHNOLOGY (220Ā°C)
Pressure (Bar) 500 1000 1500 500 1000 1500
-47,2%
- 61,9%
FLOW LENGTH MEASUREMENT AT DIFFERENT IMM PRESSURE IMM PRESSURE DROP AT ISO FLOW LENGTH
500 1000 1500 Flow Length (cm) 10 15
Flow length improvement IMM Pressure improvement
T=90Ā°C - Conventional - WITHOUT (1000 Bar)
Pressure (Bar)
40,9% 35,9% 200Ā°C -56,4% -47,5%
20
SABIC
24,2% 180Ā°C
PPE+PS
MELT TEMPERATURE (Ā°C) DRYING TEMPERATURE (Ā°C)270
MOLD Spiral 1 mm
MATERIAL
FAMILY
110 (3h)
13/04/2018DATE
SUPPLIER
220Ā°C 87,3% 69,9% 61,5% 220Ā°C - 65,2% - 58,9%
T=220Ā°C - Roctool - WITH (1000 Bar)
200Ā°C
180Ā°C 38,7% 27,5% -35,3% -27,7% -34,2%
58,5%
62,33% 39,75% 32,75% 32,86% 25,96% 24,59%
FORM
FOR-TEC-101 Rev.: C
Page 1 of 3
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
ROCTOOL TECHNOLOGY IMPROVEMENT VERSUS CONVENTIONAL TECHNOLOGY
TRADE NAME GRADE PX0844
PICTURES OF INJECTED SAMPLES
TRIAL # HDP-18-001
Sensor 2
Sensor 1
Sensor 2
Sensor 1
3. Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2
419,33 235,33 876,33 616,5 1303,2 980,17 385,33 298,83 839,33 699,33 1277 1079,8
1500
ROCTOOL TECHNOLOGY (220Ā°C)CONVENTIONAL TECHNOLOGY (90Ā°C)
IMM PRESSURE DROP AT ISO FLOW LENGTH
200Ā°C
Mold Pressure Avg
16,68%
- 27,3%
-37,5% -49,4%
- 53,3%220Ā°C 68,1% 60,6% 58,3% 220Ā°C
43,3%
PRESSURE DROP BETWEEN THE TWO PRESSURE SENSORS
-14,5%
20
ROCTOOL TECHNOLOGY IMPROVEMENT VERSUS CONVENTIONAL TECHNOLOGY
10Pressure (Bar)
FLOW LENGTH MEASUREMENT AT DIFFERENT IMM PRESSURE
43,88% 29,65% 24,79% 22,45%
HDP-18-001 MOLD Spiral 1.5 mm
SUPPLIER
Flow length improvement IMM Pressure improvement
30
-37,9%
500 1000
TRIAL #
Flow Length (cm)1500
FORM
T=220Ā°C - Roctool - WITH (1000 Bar)
MATERIAL
FAMILY PPE+PS SABIC
TRADE NAME GRADE PX0844
FOR-TEC-101 Rev.: C
Page 2 of 3
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
DATE 13/04/2018
MELT TEMPERATURE (Ā°C) 270 DRYING TEMPERATURE (Ā°C) 110 (3h)
PICTURES OF INJECTED SAMPLES
T=90Ā°C - Conventional - WITHOUT (1000 Bar)
Pressure Drop (%)
Sensors
Pressure (Bar) 500 1000 1500 500 1000
28,1% 180Ā°C -25,5% -36,0%
36,8% 200Ā°C
180Ā°C 30,5% 30,2%
49,4%
- 51,7%
15,44%
Sensor 1
Sensor 2
Sensor 1
Sensor 2
4. Flow Length improvement vs Injection Pressure in function of Mold Temperature/Mold Thickness
HDP-18-001 MOLD Spiral
FORM
FOR-TEC-101
MATERIAL
FAMILY PPE+PS SUPPLIER SABIC
TRADE NAME GRADE PX0844
Rev.: C
Page 3 of 3
Pressure Drop between the 2 Sensors vs Mold Thickness at Injection
Pressure = 1000 Bars
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
DATE 13/04/2018 TRIAL #
MELT TEMPERATURE (Ā°C) 270 DRYING TEMPERATURE (Ā°C) 110 (3h)
Note : All the injection trials and the pressure measurements were carried out according to the protocol defined by RocTool (injection process, 2 heating sides,
cold sprue, mold design).
All pressure data are measured using eDart system (RJG).
Results Evaluations
The graph above shows a flow length for the two thicknesses
at two temperature (90Ā°C and 220Ā°C). By comparing these
curves, a significant reduction in thickness can be observed.
With Roctool technology, we are able to achieve a better flow
length at 1 mm compare to 1.5 mm using conventional
technology. Also, the following diagram shows the pressure
drop measured between the two sensors for the two
thicknesses at 1000 bars of injection pressure. The reduction
of pressure drop in the cavity is important up to 43%.
GLOBAL COMMENTS & RECOMMENDATIONS
HD Plasticsā¢ characterization trials show a significant flow length and pressure drop improvement. The optimum mold
temperature is 220Ā°C regarding to the trials performed with this material. We obtain the longest flow with an important
reduction of the pressure drop compared to the conventional mold temperature. Also, we demonstrated that we could
reduce the thickness of injected part from 1.5 mm to 1 mm.
