ABS Lihuayi Lijin M347
ABS Lihuayi Lijin M347
Product Introduction ABS Lihuayi Lijin M347 is an ABS plastic widely applied in automotive and electronic‑electrical fields. It is well‑recognized for high rigidity, good heat resistance and excellent processability.
Main Applications
Automotive Components: Body panels, rear‑view mirror housings, lamp frames, interior decorative parts such as instrument‑panel assemblies and grilles. Its heat‑resistant performance makes it suitable for certain non‑critical high‑temperature parts inside engine compartments.
Electronics, Electrical & Home Appliances: Housings and internal structural parts for large home appliances including televisions, washing machines and refrigerators; housings and keyboard components for portable devices such as laptops and tablets. Thanks to high‑gloss property, it is also used for small home appliances and electrical accessories requiring premium surface appearance.
Performance Parameters
| Property Category | Test Item | Typical / Range Value | Reference Test Standard | Unit |
|---|---|---|---|---|
| Physical Properties | Density | 1.04‑1.05 | ASTM D792 | g/cm³ |
| Melt Flow Rate (MFR) | 17 g/10min (200°C/5.0 kg), 6 or 19 g/10min (different test conditions) | ASTM D1238 | g/10min | |
| Molding Shrinkage | 0.4‑0.7 | ISO 2577 | % | |
| Mechanical Properties | Tensile Strength | 46.6‑51.0 | ASTM D638 | MPa |
| Flexural Strength | 78.5‑84.0 | ASTM D790 | MPa | |
| Flexural Modulus | 2600‑2700 | ASTM D790 | MPa | |
| Izod Notched Impact Strength | 18.36 or 20‑25 (1/4") | ASTM D256 | kJ/m² or kg·cm/cm | |
| Rockwell Hardness | 108‑110 | ASTM D785 | R scale | |
| Thermal Properties | Heat‑Deflection Temperature (HDT) | 85‑89 °C (unannealed, 1.82 MPa) | ASTM D648 | °C |
| Vicat Softening Temperature | 94‑104 | ASTM D1525 | °C | |
| Other Properties | Flammability Rating | HB | UL 94 | ‑ |
Injection‑Molding Parameters
| Process Parameter | Reference Range | Remarks & Instructions |
|---|---|---|
| Drying Treatment | 80‑85°C, 2‑4 hours | Keep hopper heated to prevent re‑moisture absorption; ensure moisture content below 0.1%. |
| Barrel Temperature | Rear zone:180‑200℃ Middle zone:200‑220℃ Front zone:220‑240℃ Nozzle:220‑240℃ (do not exceed 250°C to avoid material degradation) |
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| Mold Temperature | 40‑80℃ (commonly 50‑70℃) | Higher mold temperature improves surface gloss and reduces internal stress. |
| Injection Pressure | 60‑110 MPa | Adjust according to flow length and part structure; higher value for thin‑wall or long‑flow‑path parts. |
| Holding Pressure | Approx. 30%‑60% of injection pressure | Optimize per wall thickness and structure to reduce internal stress and shrinkage. |
| Injection Speed | Medium or medium‑high speed | High‑speed improves gloss yet may cause flow marks; adopt slow‑to‑fast injection‑speed control. |
| Screw Speed | 50‑70 rpm | ‑ |
| Back Pressure | 0.5‑1.0 MPa (5‑10 kg/cm²) | Proper back‑pressure ensures uniform plasticization and degassing; lower value is preferred. |
Note: All data above is for reference only.
