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2) Measurements show flow length is improved by over 30% and pressure drop is reduced by over 40% with Roctool technology compared to conventional processing at different mold thicknesses and injection pressures.
3) The optimum mold temperature for this material based on the characterization trials is 180°C when using Roctool technology.
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2. ΔL Δa Δb
CIM H&C CIM H&C CIM H&C
0,74 0,83 1,24 1,75 1,75 2,48
0,49 0,68 0,7 0,79 1,22 1,47
0,58 0,78 0,79 0,9 1,81 1,83
0,43
ΔE
COLOR
DIFFERENCE
COLOR DEPHT RESULTS
Note: CIM: Conventional Injection Molding. H&C: Heat and cool (Roctool)
0,07
DELTACOLOR SCALE
L* ( Lightness)
MEASUREMENTS
PROCESS TECHNOLOGY
T=70°C - Conventional - WITHOUT
27,88 0,02 -1,15
28,3
a*
0,01
b*
-1,08
Note: L* = 0 yields black and L* = 100 indicates diffuse white. a*: negative values indicate green while positive values indicate red. b*: negative values indicate blue and positive values
indicate yellow.
EDM
CHEMICAL
TEXTURE RESULTS - Sa (Amplitude roughnes parameter)
Conventional (µm3
) Roctool technology (µm3) Improvement (%)Roughness parameters
13766,5 20944,3
55% 84%
FORM
FOR-TEC-111
Page 1 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
3D TEXTURATION RESULTS
T=70°C - Conventional - WITHOUT T=180°C - Roctool - WITH
Sa (µm)
Sa (µm)
LASER
20%
1%
39%
34% 14%
13%
0,42 -0,01
T=180°C - Roctool - WITH
TRADE NAME ULTRA HH 4115 HI GRADE _
DATE 25/04/2017 TRIAL # HDP-17-007 MOLD HD PLAQUE
MATERIAL
FAMILY ABS SUPPLIER ELIX POLYMER
52%
Rev.: A
T=180°C - Roctool - WITHT=80°C - Conventional - WITHOUT
PICTURES OF INJECTED SAMPLES
Sa (µm)
VDI 18 (Sa=±0.80 µm)
%%
VDI 27 (Sa=±2.20 µm)
42%12%
VDI 22 (Sa=±1.26 µm)
%
41%
Rate replication from the mold surface (%)
Volume cavity (µm3
)
GLOSS RESULTS (ISO 2813 Standard)
T=70°C - Conventional - WITHOUT 94,7 GU 100,5 GUT=180°C - Roctool - WITH
3. LAB COLOR PRINCIPLE
The Lab color space describes all perceivable colors in the three dimensions L for lightness
and a and b for the color opponents green–red and blue–yellow.
In the context of HD Plastics™, a spectrophotometer is used to carried out the LAB value :
spectro-guide 45/0 gloss (BYK). HD Plastics™ is following the DIN 5033 Standard.
The graph shows the LAB color scale. The lightness, L*, represents the darkest black at L*
= 0, and the brightest white at L* = 100. The a* and b* value represent the color channels.
a*: negative values indicate green while positive values indicate red. b*: negative values
indicate blue and positive values indicate yellow
ROUGHNESS MEASUREMENT PRINCIPLE
Optical rugosimeter is a measuring instrument used to measure a surface's profile, in order
to quantify its roughness.
In the context of HD Plastics™, two information are carried out using Alicona equipment
according to the standard ISO 4287:
- Replication rate : volume of the specific texture defined versus the one textured on the
mold surface quavity
- The surface roughness parameters : Arithmetical mean deviation (Ra) which evaluate the
roughness amplitude on a profile and Mean roughness depth (Rz) which measure the
maximal amplitude roughness average of the profile.
FORM
FOR-TEC-111 Rev.: A
Page 3 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
ANNEXES
GLOSS PRINCIPLE
Gloss is an optical property which indicates how well a surface reflects light in a specular
direction. It is one of important parameters that are used to describe the visual appearance
of an object. The factors that affect gloss are the refractive index of the material, the angle
of incident light and the surface topography.
In the context of HD Plastics™, a glossmeter is used to carried out the gloss value with a
incident angle of 60° : spectro-guide 45/0 gloss (BYK). HD Plastics™ is following the ISO
2813 Standard.
The graph shows the gloss scale using glossmeter following 60° angle in the gloss unit.
Low Gloss corresponds to a textured surface, Semi Gloss and High Gloss to high polished
surface.
FORM
FOR-TEC-111 Rev.: A
Page 2 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
COMMENTS
Quality surface characterization:
1) Visible improvement using Roctool technology are observed: weld line and sink mark are removed.
2) These improvements are confirmed by the measurements of the gloss and the color lightness reduction. Roctool technology allows to get a
piano black part with a perfect surface finish.
3) The replication of the textured surface is strongly improved by 52% according to the table "3D TEXTURATION RESULTS". Also, we observed
significant improvement for each texturing technology and in particular with the small roughness.
Roctool technology allows to get a piano black part with a perfect surface finish with ULTRA HH 4115 PG material from ELIX POLYMER. Following
the characterization, this material has been validated according to the HD Plastics™ criteria.
White
L* = 100
Black
L* = 0
4. MEASUREMENT AREAS
1) The high gloss area framed in blue is the measurement area for the gloss, color and
specific roughness Rz* .
2) The red rectangle define the nano-replication area.
3) The green frame correspond to the multi-textured (VDI) area were the roughness is
measured.
*Rz: Maximal amplitude roughness mesured for filled materials
5. Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2
312,5 24,333 747,17 340,33 1156,3 638,83 451,33 265,67 915,33 624,67 1330,2 931
PRESSURE DROP BETWEEN THE TWO PRESSURE SENSORS
1500 500 1000 1500
Sensors
Mold Pressure Avg
Pressure Drop (%)
T=180°C - RocTool - WITH (1000 Bar)
160°C
140°C 56,1% 40,2% -30,6% -43,2% -35,5%
67,1% 57,3% 48,6% 160°C -44,4% -48,9% -41,9%
SUPPLIER
15
ELIX POLYMER
32,3% 140°C
500 1000 1500 Flow Length (cm) 5 10
Flow length improvement IMM Pressure improvement
Pressure (Bar)
180°C 101,8% 80,8% 67,0% 180°C - 58,3% - 60,2% - 58,1%
FLOW LENGTH MEASUREMENT AT DIFFERENT IMM PRESSURE IMM PRESSURE DROP AT ISO FLOW LENGTH
CONVENTIONAL TECHNOLOGY (70°C) ROCTOOL TECHNOLOGY (180°C)
Pressure (Bar) 500 1000
FORM
FOR-TEC-101 Rev.: A
Page 1 of 3
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
ROCTOOL TECHNOLOGY IMPROVEMENT VERSUS CONVENTIONAL TECHNOLOGY
TRADE NAME ULTRA HH 4115 PG GRADE _
PICTURES OF INJECTED SAMPLES
TRIAL # HDP-17-007 MOLD Spiral 1 mm
MATERIAL
FAMILY
00/01/1900DATE
T=70°C - Conventional - WITHOUT (1000 Bar)
ABS
92,21% 54,45% 44,75% 41,14% 31,76% 30,01%
Sensor 1
Sensor 2
Sensor 1
Sensor 2
6. Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2
400,17 207 862,83 587,67 1310,5 949 425 300,33 908,5 719,83 1356 1102,5
-34,9% -36,7%160°C
- 42,5%180°C 47,1% 53,7% 48,9% 180°C
500 1000 Flow Length (cm)
38,4%
10
T=70°C - Conventional - WITHOUT (1000 Bar)
20
140°C 17,0% 27,0%
28,8%
1500
HDP-17-007 MOLD Spiral 1.5 mm
SUPPLIER
ROCTOOL TECHNOLOGY IMPROVEMENT VERSUS CONVENTIONAL TECHNOLOGY
Flow length improvement IMM Pressure improvement
30
-31,0%23,2% 140°C -16,1% -26,1%
Pressure (Bar)
PICTURES OF INJECTED SAMPLES
36,9% 160°C -26,9%
FORM
T=180°C - RocTool - WITH (1000 Bar)
MATERIAL
FAMILY ABS ELIX POLYMER
TRADE NAME ULTRA HH 4115 PG GRADE _
FOR-TEC-101 Rev.: A
Page 2 of 3
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
DATE 06/07/2017 TRIAL #
1500
ROCTOOL TECHNOLOGY (180°C)CONVENTIONAL TECHNOLOGY (70°C)
FLOW LENGTH MEASUREMENT AT DIFFERENT IMM PRESSURE IMM PRESSURE DROP AT ISO FLOW LENGTH
- 35,3% - 44,1%
PRESSURE DROP BETWEEN THE TWO PRESSURE SENSORS
18,69%Pressure Drop (%)
Mold Pressure Avg
20,77%
Sensors
Pressure (Bar) 500 1000 1500 500 1000
48,27% 31,89% 27,58% 29,33%
Sensor 1
Sensor 2 Sensor 2
Sensor 1
7. 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).
The HD Plastics™ characterization trials shows a significant flow length and pressure drop improvement. The optimum mold
temperature is 180°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.
GLOBAL COMMENTS & RECOMMENDATIONS
Pressure Drop between the 2 Sensors vs Mold Thickness at Injection
Pressure = 1000 Bars
Results Evaluations
The graph above shows a flow length for the two thicknesses
at two temperature (70°C and 180°C). By comparing these
curves, a significant reduction in thickness of about 33% can
be observed.
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 41%.
FORM
FOR-TEC-101
Flow Length improvement vs Injection Pressure in function of Mold Temperature/Mold Thickness
MATERIAL
FAMILY ABS SUPPLIER ELIX POLYMER
TRADE NAME ULTRA HH 4115 PG GRADE _
Rev.: A
Page 3 of 3
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
DATE 06/07/2017 TRIAL # HDP-17-007 MOLD Spiral