The weight of punched aluminum veneer is only one-third of that of ordinary steel plate (about 5-8kg/㎡),

1、 Lightweight and structural cost advantages

The weight of punched aluminum veneer is only one-third of that of ordinary steel plate (about 5-8kg/㎡), significantly reducing building loads. For example, a high-rise curtain wall project uses 2.5mm thick punched aluminum plates, reducing the overall weight by 30% and saving steel structure costs by about 15% (data source: "China Building Metal Structures" 2022 report). Its high-strength aluminum alloy substrate (such as 3003H24) can withstand level 12 typhoons while reducing transportation and installation difficulties, making it suitable for large-span buildings.

2、 Highly customized design

1. Diverse hole types: circular holes, square holes, hexagonal holes, etc., with a minimum hole diameter of 1mm and a maximum of 200mm (according to GB/T23443-2009 standard).

2. Pattern Freedom: Supports digital punching of logos, geometric shapes, etc. For example, the exterior wall of an art museum in Shanghai adopts a gradient hole design to achieve dynamic light and shadow effects.

3. Rich color: Fluorocarbon spray coating (PVDF) has a color difference resistance level of Δ E ≤ 1.5 (ISO 105-A05 standard) and a color retention of up to 20 years.

3、 Outstanding ventilation and transparency performance

The punching rate can be adjusted within a range of 20% -70%, balancing shading and lighting. For example, the ceiling of a high-speed railway station is made of 40% perforated aluminum plate, which increases the natural light penetration rate by 50% and saves about 120000 kWh of energy annually (case cited from the March 2023 issue of Green Building). Paired with LED backlight, it can also achieve media facade effects, such as a dynamic night light show at a commercial complex in Shenzhen.

4、 Super weather resistance and lifespan

1. Corrosion resistance: Passed 3000 hour salt spray test (ASTM B117), suitable for coastal areas.

2. Temperature difference resistance: stable performance from -50 ℃ to 80 ℃. A project in Xizang verified its reliability in high altitude extreme climate.

3. Long lifespan: Under normal maintenance, the service life exceeds 25 years, and the maintenance cost is 60% lower than that of glass curtain walls.

5、 Environmental Protection and Sustainability

The aluminum recycling rate exceeds 95% (International Aluminum Association data), and the production energy consumption is reduced by 45% compared to traditional building materials. The Beijing Winter Olympics venues use recycled aluminum perforated panels, reducing carbon emissions by about 800 tons.

6、 Sound absorption and noise reduction function

The combination of punched board and backing sound-absorbing cotton can achieve a noise reduction coefficient (NRC) of 0.75 or above (GB/T 20247-2006), which is widely used in airports and theaters. The wall system of a music hall in Chengdu reduces indoor echoes by 40%.

Extended application: In recent years, the photovoltaic integrated punched aluminum plate (BIPV) has emerged. For example, a project in Xiong'an embeds solar cells into holes to achieve dual functions of power generation and decoration, with an annual power generation of 120 kWh/㎡.