ABS Kingfa KF‑730 (Liaoning)
ABS Kingfa KF‑730 (Liaoning)
Product Introduction ABS Kingfa KF‑730 is a high‑gloss, high‑flow general‑purpose injection‑molding ABS plastic. With balanced comprehensive performance and favorable processing characteristics, it is widely applied in numerous fields.
Main Applications
Home Appliances: Housings and components for televisions, washing machines, refrigerators, air conditioners, smart toilet lids and other household appliances. Its high‑gloss surface improves product appearance, while good impact resistance and rigidity provide protection for internal components.
Electronics & Electrical: Mobile‑phone cases, charger housings, socket panels, switch panels, audio housings, etc. Reliable electrical insulation ensures safe operation of electronic devices.
Automotive Components: Automotive interior parts (instrument panels, door inner trims), exterior parts and functional components. High strength, high toughness and wear resistance meet component requirements.
Consumer Goods & Office Supplies: Toys, stationery, luggage cases, folders, printer and copier housings. Good impact resistance and processability satisfy daily‑use requirements.
Performance Parameters
| Property Category | Test Item | Typical Value |
|---|---|---|
| Physical Properties | Density | 1.04‑1.05 g/cm³ |
| Melt Flow Rate (MFR) | 2 g/10min (200°C/5kg), 20 g/10min (220°C/10kg) | |
| Molding Shrinkage | 0.4‑0.7 % | |
| Water Absorption | ＜0.3 % | |
| Mechanical Properties | Tensile Strength | 47 MPa |
| Flexural Strength | 76 MPa | |
| Flexural Modulus | 2500 MPa | |
| Izod Notched Impact Strength | 20 kJ/m² | |
| Rockwell Hardness (R‑Scale) | 108 R scale | |
| Elongation at Break | 8 % | |
| Thermal Properties | Heat‑Deflection Temperature (HDT) | 77 °C (1.8 MPa), 85 °C (0.45 MPa) |
| Vicat Softening Temperature | 86 °C (5kg/50℃/h), 96 °C (1kg/120℃/h) | |
| Other Properties | Flammability Rating (UL 94) | HB |
Injection‑Molding Parameters
| Process Parameter | Reference Range | Remarks & Instructions |
|---|---|---|
| Drying Treatment | 80°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:190‑210℃ Front zone:200‑220℃ Nozzle:200‑230℃ (do not exceed 240°C to avoid material degradation) |
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| Mold Temperature | 40‑80℃ (commonly 50‑60℃) | Higher mold temperature improves surface gloss and reduces internal stress. |
| Injection Pressure | Adjust according to flow length and part structure (e.g. 60‑100 MPa) | ‑ |
| 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 profile for high‑appearance requirements. |
| Screw Speed | Proper speed for uniform plasticization (e.g. 50‑80 rpm) | ‑ |
| Back Pressure | 0.5‑1.0 MPa | Facilitates uniform plasticization and degassing. |
Note: All data above is for reference only.
