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Product TextsCelcon? acetal copolymer grade M25 is a high molecular weight, higher

流變性能(Rheological properties)	值(Value)	單位(Unit)	測試標準(Test Standard)
ISO數據(ISO數據(CAMPUS/ISO) Data)
熔體體積流動速率(Melt volume-flow rate) (MVR)	2.2	cm3/10min	ISO 1133
溫度(Temperature)	190	°C	ISO 1133
負載(Load)	2.16	kg	ISO 1133
成型收縮(Molding shrinkage) (parallel)	2.2	%	ISO 294-4, 2577
成型收縮(Molding shrinkage) (normal)	1.8	%	ISO 294-4, 2577

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機械性能(機械性能(Mechanical properties))

值(Value)

單位(Unit)

測試標準(Test Standard)

ISO數據(ISO數據(CAMPUS/ISO) Data)

拉伸模量(Tensile Modulus)

2460

MPa

ISO 527-1/-2

Tensile creep modulus (1h)

2100

MPa

ISO 899-1

Tensile creep modulus (1000h)

1100

MPa

ISO 899-1

簡支梁沖擊強度(Charpy impact strength) (+23°C)

250[P]

kJ/m2

ISO 179/1eU

簡支梁沖擊強度(Charpy impact strength) (-30°C)

190

kJ/m2

ISO 179/1eU

簡支梁缺口沖擊強度(Charpy notched impact strength) (+23°C)

9.1

kJ/m2

ISO 179/1eA

Partial Break

熱性能(熱性能(Thermal properties))	值(Value)	單位(Unit)	測試標準(Test Standard)
ISO數據(ISO數據(CAMPUS/ISO) Data)
熔化溫度(熔化溫度(Melting temperature)) (10°C/min)	166	°C	ISO 11357-1/-3
溫度負荷變形(Temp. of deflection under load) (1.80 MPa)	94	°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)	120	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數據(ISO數據(CAMPUS/ISO) Data)
吸水率(Water absorption)	0.75	%	Sim. to ISO 62
吸濕性(Humidity absorption)	0.2	%	Sim. to ISO 62
密度(Density)	1410	kg/m3	ISO 1183

流變計算屬性(Rheological calculation properties)	值(Value)	單位(Unit)	測試標準(Test Standard)
ISO數據(ISO數據(CAMPUS/ISO) Data)
密度(Density) of melt	1200	kg/m3	-
熔體熱導率(Thermal conductivity of melt)	0.155	W/(m K)	-
規格的熱容融化(Spec. heat capacity of melt)	2210	J/(kg K)	-
噴射溫度(Ejection temperature)	165	°C	-

Test specimen production	值(Value)	單位(Unit)	測試標準(Test Standard)
ISO數據(ISO數據(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	140	mm/s	ISO 294
Injection Molding, pressure at hold	86	MPa	ISO 294

Diagrams Excessive moisture can lead to splay (silver streaking) in For better uniformity in molding especially when using Maximum 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 Melt 5 mm (0.060 in.). May Wall thickness greater ) may use a coole) may use a cold mold In general, mold surface temperatures It may Film extrusionPREPROCESSING For at 80 C (180 F). Desiccant hopper dryers are not Max. moisture content = 0. The screw should be a high compression ratio of at least The 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 For at 80 C (180 F). Desiccant hopper dryers are not Max. moisture content = 0.035% The screw should be a high compression ratio of at least The For thick walled ), annealing is recommended to reduce For better uniformity Desiccant hopper dryers are not required. Max. 35%. The screw should be a high compression ratio (at least 3:1 The screw design should be approximately 35% each for the For thick ), annealing is recommended to reduce CalanderingPREPROCESSINGCompression moldingPREPROCESSINGDisclaimerCopyright M-Base Engineering+Software GmbH. 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.

CELCON M25|POM|Ticona