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This is the free Material Data Center Datasheet of Ultraform® N2770 K AT - POM - BASF

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Texto del producto
Injection molding grade with enhanced wear behavior for sliding parts.

Abbreviated designation according to ISO 1043-1: POM
Designation according to ISO 29988-POM-K,,M-GNRS2,3-2
Caracteristicas de procesamiento y fisicasValorUnidadesMétodo de ensayo
ISO Data
Indice de fluidez volumétrico, MVR 7.5 cm³/10min ISO 1133
Temperatura 190 °C -
Carga 2.16 kg -
Contracción posterior al moldeo, paralelo 2.1 % ISO 294-4, 2577
Contracción posterior al moldeo, normal 2.1 % ISO 294-4, 2577
Propiedades mecánicasValorUnidadesMétodo de ensayo
ISO Data
Módulo de tracción 2700 MPa ISO 527
Esfuerzo de fluencia 61 MPa ISO 527
Alarg. en límite elástico 9.5 % ISO 527
Alarg. nominal a rotura 26 % ISO 527
Módulo de plastodeformación, 1000h 1400 MPa ISO 899-1
Resistencia al impacto Charpy, +23°C 100 kJ/m² ISO 179/1eU
Resistencia al impacto Charpy, -30°C 100 kJ/m² ISO 179/1eU
Resistencia al impacto Charpy c/entalla, +23°C 5 kJ/m² ISO 179/1eA
Resistencia al impacto Charpy c/entalla, -30°C 4 kJ/m² ISO 179/1eA
Propiedades térmicasValorUnidadesMétodo de ensayo
ISO Data
Temperatura de fusión, 10°C/min 166 °C ISO 11357-1/-3
Estabilidad al calor, 1.80 MPa 90 °C ISO 75-1/-2
Coef.de expansión térmica lineal, paralelo 110 E-6/K ISO 11359-1/-2
Combustibilidad a 1.5mm esp. nom. HB class IEC 60695-11-10
Propiedades eléctricasValorUnidadesMétodo de ensayo
ISO Data
Constante dieléctrica, 1MHz 3.8 - IEC 62631-2-1
Factor de pérdidas dieléctricas, 1MHz 50 E-4 IEC 62631-2-1
Resistividad volumétrica específica 1E13 Ohm*m IEC 62631-3-1
Resistividad superficial específica 1E13 Ohm IEC 62631-3-2
Indice comparativo de linea de fuga 600 - IEC 60112
Otras propiedadesValorUnidadesMétodo de ensayo
Absorción de agua 0.9 % Sim. to ISO 62
Absorción de humedad 0.2 % Sim. to ISO 62
Densidad 1430 kg/m³ ISO 1183
Características
Procesamiento y forma de entrega
Moldeo por inyección
Características
Grado tribológico, Copolímero
Demás información
Moldeo por inyección
PROCESSING
injection molding, Melt temperature, range: 190 - 230 °C
injection molding, Mold temperature, range: 60 - 120 °C

Processing

Usual single-flighted three-section screws with an effective screw length of at least 15 D, better 20 - 23 D are suitable for the injection molding of Ultraform.

Pretreatment

Granules or pellets in original packaging can be processed without any special pretreatment. Granules or pellets which have become moist due to prolonged or incorrect storage (e.g. by formation of condensed water) must be dried in dehumidifying or recirculating air dryers for approx. 3 hours at about 100 - 110 °C. The moisture content should not exceed 0.2 %.


Postprocessing

If parts were produced at a comparatively low mold temperature (e.g. in order to obtain short cycle times) and must not change their geometry in use thermal postprocessing inducing dimensional changes by postcrystallization may be necessary. In such cases parts should be stored in an oven with recirculated air at temperatures of 100 - 130 °C until dimensions don't change significantly any further. The time needed for this has to be determined experimentally.
Disclaimer
Copyright Altair Engineering GmbH. Altair Engineering 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 Altair Engineering GmbH; this is especially valid for claims of compensation resulting from consequential damages. Altair 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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