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Rulon Bearings

Lehvoss LUVOCOM® 80-8444 Polyacetal-copolymer unreinforced  (discontinued **)
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced

Material Notes: Properties/attributes include: Dynamic-stress and wear-resistant parts. Isotropic shrinkage characteristics. Applicable e.g. for machine parts, moulds, tools and containers used in the food industry. Detectable.

Automotive industry, textile- and office machinery, apparatus- and precision engineering. Typical uses include: Reduced moment of inertia compared with metal parts.

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

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Specific Gravity 1.56 g/cc1.56 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 0.019 - 0.030 cm/cm0.019 - 0.030 in/inDIN 16901
Melt Flow 10 g/10 min
@Load 2.16 kg,
Temperature 190 °C
10 g/10 min
@Load 4.76 lb,
Temperature 374 °F
(MVR); ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength 56.0 MPa8120 psiISO 527-2
Elongation at Break 10 %10 %ISO 527-2
Modulus of Elasticity 3.20 GPa464 ksiISO 527-2
Flexural Strength 60.0 MPa8700 psiISO 178
Flexural Modulus 2.50 GPa363 ksiISO 178
Charpy Impact Unnotched 9.00 J/cm²
@Temperature 23.0 °C
42.8 ft-lb/in²
@Temperature 73.4 °F
ISO 179 1fu
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity >= 1.00e+12 ohm-cm>= 1.00e+12 ohm-cmIEC 60167
Surface Resistance >= 1.00e+12 ohm>= 1.00e+12 ohmIEC 60093
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 100 °C212 °FContinuous; UL 746B
 120 °C248 °FShort Term
Deflection Temperature at 1.8 MPa (264 psi) 105 °C221 °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
Colorsapphire blue

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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