1. Core performance advantages
Lightweight and mechanical properties
The density of 1060 aluminum plate is only 2.71g/cm³, which is 1/3 of the weight of steel, significantly reducing the vehicle's own weight and improving fuel efficiency.
Tensile strength 70-136MPa, elongation 3-30% (O state), supports complex processing such as stamping and bending, and is suitable for special-shaped heat shields.
High temperature resistance and corrosion resistance
A dense oxide film is naturally formed on the surface of the pure aluminum matrix (Al≥99.6%), which is resistant to weak acid/weak alkali corrosion and adapts to the high temperature (120-200℃) and humid environment of the bottom of the car.
After O state annealing treatment, there is no risk of oxidation peeling in long-term use, and the replacement cycle of the heat shield is extended to 8-10 years.
Thermal conduction characteristics
The thermal conductivity coefficient is 234W/(m·K), which can quickly disperse local high temperature heat, and the radiation heat flow can be reduced by 30%-40% with surface polishing.
2.Typical Application Scenarios
| Application Part | Technical Solution | Performance Adaptability |
|---|---|---|
| Exhaust Pipe Heat Shield | Use 0.5–1.2 mm thick 1060-O aluminum plate, stamped into a corrugated structure; capable of withstanding instantaneous temperature spikes up to 800°C | Surface temperature drops from 300°C to ambient ±10°C |
| Engine Compartment Heat Shield | Composite structure: aluminum plate + glass fiber felt; sound insulation coefficient STC ≥ 30 dB; blocks 90% of radiant heat | Engine compartment temperature reduced by 15–20°C |
| Chassis Heat Shield | Laser cutting and riveting process; tensile strength ≥ 110 MPa; impact-resistant against road gravel | Anti-deformation performance complies with ISO 9001 standard |
3. Key points for processing and selection
Thickness matching
Light passenger cars: 0.3-0.8mm (meet conventional insulation requirements)
Commercial vehicles/special vehicles: 1.0-2.0mm (need to withstand higher mechanical loads)
Surface treatment
Conventional environment: polishing (roughness Ra≤0.8μm) to improve heat reflection efficiency
High corrosion area: anodizing (film thickness 10-15μm) or spraying ceramic coating
Welding process
Preferably use AC TIG welding (current 50-150A), with 4043 aluminum welding wire, the weld strength reaches more than 85% of the parent material.
4. Economic analysis
Market purchase price in 2025: O-state sheet is about 18-22 yuan/kg (tax included), and the comprehensive cost is 40% lower than that of stainless steel.
The recycling rate reaches 98%, scrapped plates can be melted and recycled, and carbon emissions are reduced by 92% compared to the production of new materials. Through reasonable selection and process optimization, 1060 aluminum plate has become the preferred solution for lightweight and efficient heat insulation of automotive thermal management systems.
