MATERIAL CHARACTERISTICS |
|
Excellent mechanical properties |
Good
porocess ablility |
|
High surface quality |
Excellent
toughness |
|
|
PROPERITES |
|
|
UNIT |
TEST
METHOD |
TEST
RESULTS |
|
TENSILE STRENGHT( 5mm/min ) |
MPa |
ASTM
D638-08 |
130 |
|
ELONGATIONG AT BREAK( 5mm/min ) |
% |
ASTM
D638-08 |
2.12 |
|
TENSIL MODULUS( 5mm/min ) |
MPa |
ASTM
D638-08 |
11752 |
|
FLEXURAL STRENGTH( 1.3mm/min ) |
MPa |
ASTM
D790-07 |
187 |
|
FLEXURAL MODULUS( 1.3mm/min ) |
MPa |
ASTM
D790-07 |
9730 |
|
IZOD IMPACT STRENGTH NOTCHED(
2.86J ) |
J/m |
ASTM
D256-06 |
368 |
|
IZOD IMPACT STRENGTH UNNOTCHED(
7.16J ) |
J/m |
ASTM
D4812-99 |
750 |
|
LUOSHI ROCKWELL |
/ |
ASTM
D785-08 |
122 |
|
DENSITY |
g/cm3 |
ASTM
D792-08 |
1.24 |
|
GLASS FIBER |
% |
ASTM
D2584-02 |
40±3 |
|
MELTING POINT |
℃ |
ASTM
D3418-003 |
168 |
|
HDT@1.82MPa |
℃ |
ASTM
D648-07 |
157 |
|
MOULD SHRINKAGE |
% |
ISO
294-4：2001 |
0.27
0.36 |
|
DISCLAIMER |
ALL these data were
tested at 23℃,50%RH.It
is not be used to
establish |
| |
specification limits nor
used alone as the basis
of designn |
|
|
|
NOTES |
|
Pre-dry bridging 80~90℃,2~4hours; |
|
Tomaximize fiber length,the following injection
barrel,screw,and tip designs should be follwed: |
|
①L/Dratio 17/1 to
23/1.②Compression 2:1.③Flight depth 0.20 in.(5.10mm)
minimum,in feed section. |
|
④Screw diameter 0.65
to 0.80 in.(16.50mm) minimum.⑤Compression section
section length 12.2 to 13.2 diameters. |
|
⑥Check ring valve
assembly-free flow type no restrivtions.⑦Nozzle
oriffece 0.25 in (6.30mm) diamaeter. |
|
Feed throat from hopper to machine must have
sufficent opening to prevent bridging of long pellet
composition. |
|
Uses a reverse barrel profile to'presoak'or 'soften
fibers',Prevent screw shear over cause fiber
fracture. |
|
PROCESSDING |
|
MATERIAL GRADE |
TEMPERATURE℃ |
PRESSURE Mpa |
INJECTION SPEED mm/sec |
SCREW SPEED rmp |
|
REAR
ZONE |
CETER ZONE |
FRONT ZONE |
MELT |
MOLD |
INJECTION |
PRESERVATION |
BACK |
|
K712 |
260~270 |
250~260 |
250~260 |
275~280 |
40~100 |
35~120 |
35~70 |
0.17~0.34 |
15~35 |
30~60 |
|
