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CELCON GC25A|POM-GF25|Ticona

Product TextsCelcon? acetal copolymer grade GC25A is a glass coupled formulation This grade offers excellent 4	%	ISO 294-4, 2577
成型收縮(Molding shrinkage) (normal)	1.2	%	ISO 294-4, 2577

機械性能(機械性能(Mechanical properties))	值(Value)	單位(Unit)	測試標準(Test Standard)
ISO數(shù)據(jù)(ISO數(shù)據(jù)(CAMPUS/ISO) Data)
拉伸模量(Tensile Modulus)	8600	MPa	ISO 527-1/-2
破壞時應變(Stress at break)	106	MPa	ISO 527-1/-2
破壞時應變(Strain at break)	2	%	ISO 527-1/-2
簡支梁沖擊強度(Charpy impact strength) (+23°C)	25	kJ/m2	ISO 179/1eU
簡支梁沖擊強度(Charpy impact strength) (-30°C)	35	kJ/m2	ISO 179/1eU
簡支梁缺口沖擊強度(Charpy notched impact strength) (+23°C)	6.4	kJ/m2	ISO 179/1eA

熱性能(熱性能(Thermal properties))	值(Value)	單位(Unit)	測試標準(Test Standard)
ISO數(shù)據(jù)(ISO數(shù)據(jù)(CAMPUS/ISO) Data)
熔化溫度(熔化溫度(Melting temperature)) (10°C/min)	165	°C	ISO 11357-1/-3
溫度負荷變形(Temp. of deflection under load) (1.80 MPa)	160	°C	ISO 75-1/-2
維卡軟化溫度（50℃/ h的50N）Vicat softening temperature	161	°C	ISO 306
COEFF線性熱(Coeff. of linear therm. expansion) (parallel)	25	E-6/K	ISO 11359-1/-2
COEFF線性熱(Coeff. of linear therm. expansion) (normal)	120	E-6/K	ISO 11359-1/-2

其他屬性(Other properties)	值(Value)	單位(Unit)	測試標準(Test Standard)
ISO數(shù)據(jù)(ISO數(shù)據(jù)(CAMPUS/ISO) Data)
吸水率(Water absorption)	0.8	%	Sim. to ISO 62
吸濕性(Humidity absorption)	0.2	%	Sim. to ISO 62
密度(Density)	1580	kg/m3	ISO 1183

Test specimen production	值(Value)	單位(Unit)	測試標準(Test Standard)
ISO數(shù)據(jù)(ISO數(shù)據(jù)(CAMPUS/ISO) Data)
Processing conditions acc. ISO	9990	-	ISO ....-2
Injection Molding, melt temperature	205	°C	ISO 294
Injection Molding, mold temperature	90	°C	ISO 10724
Injection Molding, injection velocity	200	mm/s	ISO 294
Injection Molding, pressure at hold	86	MPa	ISO 294

Diagrams For better uniformity in molding especially when using regrind Max water content = 0.35%.35 Mpa/50 PSI) are favored. Using a low compression screw e.- general purpose 2:1 compression ratio) can result in unmelted Using a high back pressure to make Mold surface temperature: 5 mm (0.060 in.). May require mold temperature as high as Wall thickness greater than 3 mm (1/8 in.) may use a cooler (65 ) may use a cold mold surface down to 25 C (80 F). In general, mold It may be Other extrusionPREPROCESSING For better uniformity Desiccant hopper dryers are not required. Max. moisture 35% The screw should be a high compression ratio of at least The design should be approximately 35% each for the feed ), annealing is recommended to reduce M-Base Engineering + Software GmbH assumes no liability for the system to be free of errors. The user takes sole responsibility for the use of this data under the exclusion of every liability from M-Base; this is especially valid for claims of compensation resulting from consequential damages. M-Base explicitly points out that any decision about the application of materials must be double checked with the producer of this material. This includes all contents of this system. Copyright laws are applicable for the content of this system.
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CELCON GC25A|POM-GF25|Ticona