EN
English
中文简体
Español
In-depth Analysis of Materials Used in Key Automotive Components
1. Powertrain and Cooling Systems (Engine & Cooling – Extreme Conditions Zone)
| Component Name | Recommended Materials | Key Technical Parameters (Typical Values) | Key Benefits / Addressing Pain Points |
| Engine Cover | PAGM30 / PP | Heat Deflection Temperature (HDT): ≥210°C (PA-based) | Heat Resistance and Vibration Damping: PA6 reinforced with 30% mineral/glass fibre offers excellent oil resistance and thermal stability, effectively blocking engine noise and preventing warping and deformation under prolonged high temperatures. |
| Flexural Modulus: 6000–8000 MPa | |||
| Radiator Tank | PA66GF30 | Burst Pressure: ≥0.3 MPa (at 130°C) | Pressure Resistance and Hydrolysis Resistance: PA66 reinforced with 30% glass fibre (GF) is specifically optimised for long-term hydrolysis resistance, capable of withstanding high pressure and ethylene glycol corrosion within the cooling system, thereby preventing leaks. |
| Coolant Resistance: Excellent | |||
| Cooling Fan | PAGF30 / PP | Dynamic Balance Accuracy: G2.5 | High Rigidity and Dynamic Balance: Ensures no blade deformation during high-speed rotation, reducing aerodynamic noise and improving heat dissipation efficiency. |
| Tensile Strength: ≥150 MPa | |||
| Air Filter | PP | Density: 0.90–0.92 g/cm³ | Lightweight and Integrated: Utilises PP’s ease of processing and low density to achieve integrated moulding of complex structures, reducing weight within the cabin. |
| Chemical resistance: Excellent |
2. Interior & Interaction Systems (Interior – Comfort & Safety Zone)
| Component Name | Recommended Materials | Key Technical Parameters (Typical Values) | Key Benefits / Pain Points Addressed |
| Dashboard | PC/ABS / PP | Impact strength: ≥45 kJ/m² | Safety, Shatter Resistance and Low VOC: PC/ABS ensures no sharp fragments are produced in the event of a collision; its low-volatility properties ensure cabin air quality meets environmental standards and prevent windscreen misting. |
| Low fogging: <1.0 mg | |||
| Steering Wheel / Trim | PP | Rockwell hardness: R-105+ | Scratch Resistance and Tactile Feel: Modified PP offers excellent surface hardness, preventing scratches from fingernails or keys, whilst a leather-grain design enhances the interior’s sense of luxury. |
| Shrinkage: 1.0%–1.2% | |||
| Carpet (Car Carpet) | TPE | Shore Hardness: 50A–70A | Eco-Friendly and Easy to Clean: TPE material is odourless, 100% recyclable, and offers excellent water-repellent and anti-slip properties, making it the preferred choice for replacing traditional rubber in premium vehicles. |
| Temperature Range: –40°C to 120°C |
3. Exterior & Structural (Exterior & Structural - Durability & Aesthetics Zone)
| Component Name | Recommended Materials | Key Technical Parameters (Typical Values) | Key Benefits / Pain Points Addressed |
| Bumper (Bumper) | PP / PC/ABS | Low-Temperature Impact (-30°C): No cracking | Energy Absorption and Resilience: Modified PP possesses exceptional toughness, automatically returning to its original shape after minor impacts, and is easy to paint, ensuring consistent body colour. |
| Flexural Modulus: 1500–2500 MPa | |||
| Headlamp Bracket (Headlamp Bracket) | PBTG30 | Coefficient of Linear Thermal Expansion (CLTE): Extremely low | Precision Alignment and Heat Resistance: Localised temperatures are extremely high when bulbs are in operation. PBT+GF ensures that lighting components do not shift under high temperatures, guaranteeing the precision of the beam alignment. |
| Flame Retardancy Rating: UL94 V-0 | |||
| Door Handle (Door Handle) | PC/ABS | Tensile modulus: ≥2400 MPa | Strength and Electroplated Finish: PC/ABS offers metal-like rigidity and is highly suitable for chemical electroplating, imparting a high-end metallic sheen to handles. |
| Plating grade: Excellent | |||
| Wheel Cover (Wheel Cover) | PA66GF15 | Notched impact strength: ≥10 kJ/m² | Impact resistance and high rigidity: Withstands impacts from road debris without cracking, whilst maintaining exceptional surface smoothness, making it suitable for a wide range of decorative finishes. |
| Surface gloss: High | |||
| Mirror Bracket (Mirror Bracket) | PBT/PET | Weather resistance (UV): 1000h+ | Vibration damping and weather resistance: Does not become brittle or fade when exposed to sunlight over long periods, and absorbs motor vibrations to ensure a clear and stable view through the rear-view mirror. |
| Vibration resistance: Excellent |
