| About |
|---|
| YUNTIANHUA® MD-1 is an Acetal (POM) Copolymer product filled with 10% pine fiber. It can be processed by injection molding and is available in Asia Pacific, Europe, or North America. Typical application: Engineering/Industrial Parts. Characteristics include: Flame Rated Copolymer Wear Resistant&& |
| Product Description | |
|---|---|
| Supplier | YunTianHua |
| Generic | Copolymer Polyformaldehyde |
| Material Status | Commercial: Negative |
| Features | Low coefficient of friction,Copolymer,Good wear resistance,HB |
| Availabilitys | North America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.60 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 7.0 | g/10min | ISO 1133 |
| Water absorption rate | |||
| 23℃，24hr | 0.60 | % | ISO 62 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | 2200 | MPa | ISO 527-2 |
| tensile strength | |||
| yield | 50.0 | MPa | ISO 527-2 |
| Tensile strain | |||
| fracture | 45 | % | ISO 527-2 |
| Bending modulus | 2000 | MPa | ISO 178 |
| bending strength | 45.0 | MPa | ISO 178 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | 5.0 | kJ/m² | ISO 179-1eA |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 70.0 | ℃ | ISO 75-2/A |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | HB | UL 94 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 80 to 90 | °C | |
| Drying time | 2.0 to 4.0 | hr | |
| Barrel rear temperature | 160 to 180 | °C | |
| Barrel middle temperature | 170 to 190 | °C | |
| Barrel front temperature | 180 to 200 | °C | |
| Nozzle temperature | 180 to 200 | °C | |
| Processing (melt) temperature | 180 to 200 | °C | |
| Mold temperature | 60 to 90 | °C | |
| Injection pressure | 50.0 to 100 | MPa | |
| Hold pressure | 30.0 to 80.0 | MPa | |
| Back pressure | 0.00 to 0.500 | MPa | |
| Screw speed | 50 to 120 | rpm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
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