Views: 0 Author: Site Editor Publish Time: 2025-06-17 Origin: Site
Advantages:
✅ Excellent mechanical strength & impact resistance
✅ High surface gloss (ideal for plating/painting)
✅ Good chemical resistance (oils, weak acids)
✅ Wide processing window (180-240°C)
Limitations:
❌ Poor UV resistance (requires stabilizers for outdoor use)
❌ Flammable (needs flame retardant additives)
| Grade Type | Example Grades | Typical Applications |
|---|---|---|
| General Purpose | LG Chemical ABS-120 | Toys, household items, housings |
| High Impact | Chi Mei PA-757 | Automotive interiors, tool handles |
| Plating Grade | Formosa ABS-3000M | Automotive grilles, bathroom fittings |
| Flame Retardant | SABIC ABS-FR400 | Electronics (UL94 V-0 certified) |
LG Chemical (Korea): Premium gloss ABS for electronics
Chi Mei (Taiwan): PA-series with superior impact strength
SABIC (Saudi): Market leader in flame retardant ABS
BASF (Germany): Ultramid® for demanding environments
Kingfa Science: Competitive flame retardant ABS
Formosa Plastics (Ningbo): Stable plating-grade ABS
Pret: Automotive-grade modified ABS
Procurement Tip:
Small batches (<1 ton): Use distributors (e.g., Suqing)
Bulk orders (>10 tons): Negotiate directly with manufacturers
| Zone | Temperature Range | Notes |
|---|---|---|
| Rear Barrel | 160-180°C | Prevents premature degradation |
| Middle Barrel | 190-210°C | Primary melting zone |
| Front Barrel | 200-230°C | Ensures proper melt flow |
| Nozzle | 200-220°C | Slightly lower to prevent drooling |
| Mold Temperature | 50-80°C | Higher temps improve surface finish |
Injection Pressure: 60-100MPa
(Higher for thin walls, lower for thick sections)
Holding Pressure: 30-50% of injection pressure
Injection Speed: Moderate (prevents jetting)
Formula: Cooling time ≈ (Wall thickness²) × 1.5~2.5 sec/mm²
(Example: 2mm wall → 6~10 seconds)
| Issue | Potential Causes | Solutions |
|---|---|---|
| Silver Streaks | Moisture/Overheating | Pre-dry at 80°C for 2-4 hours |
| Visible Weld Lines | Low speed/Cold mold | Increase mold temp >60°C |
| Sink Marks | Insufficient packing | Extend hold time + optimize cooling |
| Ejection Marks | Poor draft angle/Fast ejection | Increase draft angle (≥1°) |
Material Preparation:
Pre-dry at 80°C for 4 hours (<0.1% humidity)
Molding Process:
80MPa injection pressure, 65°C mold temp
Hot runner system to reduce waste
Post-Processing:
Ultrasonic welding for assembly
Surface coating (UV primer + PU topcoat)
Material Savings:
➤ Use 5-10% regrind (verify mechanical properties)
➤ "Sandwich molding": Virgin material outside, regrind inside
Efficiency Improvements:
➤ High-speed machines (20% shorter cycle times)
➤ In-mold labeling (IML) eliminates painting
Bio-based ABS: Terralene® (plant-derived components)
Paint-Free ABS: Special colorants for glossy finishes
Smart Monitoring: IoT sensors for real-time adjustments
By optimizing material selection, processing parameters, and supply chain management, ABS injection molding can achieve 15-30% cost reduction while maintaining quality. Contact us for specific grade recommendations or process troubleshooting!
