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Elmet Technologies

Lehvoss LUVOCOM® 80-7050 Polyacetal-copolymer with carbon fiber
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Carbon Fiber Filled

Material Notes: Properties/attributes include: Electrically conductive, suitable for continuous discharging of statically-generated electricity. High dimensionally stable precision parts. No static generated at bearing surface due to transport of paper or foil

Automotive industry, textile- and office machinery, apparatus- and precision engineering. Typical uses include: Transporting equipment for electrically sensible goods.

Processing: If originally sealed containers are used, it is normally possible to omit the predrying stage. If PTFE materials are not predried, an increase in deposits inside the mould may occur. When changing from higher melting-point polymers such as polyamides to this product, extremely thorough intermediate cleaning should be carried out. Processing temperatures above 215°C may very rapidly cause thermal damage and should therefore be avoided, particularly as formaldehyde may be eliminated here. Therefore, ventilation of machinery is recommended. The processing notes provided merely represent a recommendation for general use. Due to the large variety of machines, geometries and volumes of parts, etc., it may be necessary to employ different settings according to the specific application.

Information provided by Lehmann & Voss & Co.KG

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.47 g/cc1.47 g/ccISO 1183
Moisture Absorption <= 0.100 %
@Temperature 23.0 °C,
Time 86400 sec
<= 0.100 %
@Temperature 73.4 °F,
Time 24.0 hour
Linear Mold Shrinkage 0.0030 - 0.0070 cm/cm0.0030 - 0.0070 in/inDIN 16901
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength 115 MPa16700 psiISO 527-2
Elongation at Break 1.2 %1.2 %ISO 527-2
Modulus of Elasticity 16.0 GPa2320 ksiISO 527-2
Flexural Strength 170 MPa24700 psiISO 178
Flexural Modulus 14.0 GPa2030 ksiISO 178
Flexural Strain at Break 1.5 %1.5 %Flexural Elongation @ Fmax; ISO 178
Charpy Impact Unnotched 2.50 J/cm²
@Temperature 23.0 °C
11.9 ft-lb/in²
@Temperature 73.4 °F
ISO 179 1eU
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity <= 100 ohm-cm<= 100 ohm-cmIEC 60167
Surface Resistance <= 1000 ohm<= 1000 ohmIEC 60093
 
Thermal PropertiesMetricEnglishComments
CTE, linear 20.0 µm/m-°C11.1 µin/in-°FDIN 53752
Thermal Conductivity 0.450 W/m-K3.12 BTU-in/hr-ft²-°FDIN 52612
Maximum Service Temperature, Air 100 °C212 °FContinuous; UL 746B
 120 °C248 °FShort Term
Deflection Temperature at 1.8 MPa (264 psi) 160 °C320 °FISO 75-2/A
Vicat Softening Point 160 °C320 °FVST A; DIN ISO 306
 
Processing PropertiesMetricEnglishComments
Nozzle Temperature 175 - 200 °C347 - 392 °F
Zone 1 175 - 190 °C347 - 374 °F
Zone 2 185 - 205 °C365 - 401 °F
Zone 3 180 - 200 °C356 - 392 °F
Melt Temperature 200 °C392 °F
Mold Temperature 80.0 - 120 °C176 - 248 °F
Drying Temperature  75.0 °C
@Time 7200 - 28800 sec
167 °F
@Time 2.00 - 8.00 hour
Dehumidifying dryer
 120 °C
@Time 7200 - 14400 sec
248 °F
@Time 2.00 - 4.00 hour
Air-Circulation Dryer
 
Descriptive Properties
Colorblack

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