Buy Solid Aluminum Panel Manufacturers, Factories

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Buy Solid Aluminum Panel Manufacturers, Factories

Solid aluminum panel Â also called Aluminum Veneer or Aluminum Panel ,which is a high-performance flat aluminum product made of pure aluminum (1xxx series) or aluminum alloys (3xxx, 5xxx, 6xxx series) through processes like hot rolling, cold rolling, and precision cutting. It features a dense solid structure, distinguishing it from hollow aluminum profiles or composite panels.

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Product Description

Key Manufacturing Process

The production of aluminum roofing sheets involves precise process control to ensure thickness uniformity, surface quality, and performance stability. The main steps are as follows:

Raw Material Selection

High-quality aluminum ingots or alloy billets (typically 1xxx, 3xxx, or 5xxx series) are selected based on the intended application. For example, 5xxx series (Al-Mg alloy) is preferred for coastal areas due to its superior corrosion resistance.

Hot Rolling

The aluminum billets are heated to 400-500°C and rolled into thick sheets (1-5mm) using hot rolling mills. This step refines the grain structure and improves the material's formability.

Cold Rolling

The hot-rolled sheets are further rolled at room temperature to reduce the thickness to the target range (0.2-1.2mm for roofing applications). Cold rolling enhances the sheet's strength, surface smoothness, and dimensional precision.

Surface Treatment

Coating: PVDF (fluorocarbon) coating, polyester coating, or acrylic coating is applied via roller coating to improve weather resistance and aesthetics. PVDF coating is the premium option for harsh environments.

Anodizing

The sheets are treated with electrolysis to form a thicker oxide film (5-20 μm) on the surface, enhancing corrosion resistance and allowing for dyeing into various colors.

Embossing & Cutting

The sheets are passed through embossing rolls to create decorative patterns, which also improve slip resistance and hide minor surface defects. The treated sheets are then cut into standard sizes (e.g., 1000mm × 2000mm, 1220mm × 2440mm) or custom lengths. They are packaged with moisture-proof film and cardboard to prevent scratches during transport.

Key Specifications

Specification Category	Detailed Parameters	Typical Alloys	Typical Applications	Quality Control Requirements
Thickness	Thin: 0.2mm - 0.5mm	1060, 3003	Residential awnings, small sheds, temporary buildings	Thickness deviation ≤ ±0.02mm, no pinholes
	Medium: 0.5mm - 0.8mm	3003, 5052	Residential roofs, commercial buildings (shops, offices), agricultural greenhouses	Thickness deviation ≤ ±0.03mm, tensile strength ≥ 150MPa
	Thick: 0.8mm - 1.2mm	5052, 5083	Industrial workshops, large-span buildings, coastal area roofs	Thickness deviation ≤ ±0.04mm, elongation ≥ 5%
Surface Treatment	PVDF Coated	3003, 5052	Coastal buildings, high-end commercial buildings, industrial areas	Coating thickness 20-30 μm, weather resistance ≥ 20 years
	Polyester Coated	1060, 3003	Residential roofs, inland commercial buildings	Coating thickness 15-25 μm, weather resistance ≥ 10 years
	Anodized/Embossed	1060, 3003	Decorative roofs, awnings, cultural buildings	Anodized film thickness 8-15 μm, pattern uniformity
Size (Width × Length)	Standard Size: 1000mm × 2000mm, 1220mm × 2440mm, 1250mm × 3000mm	1060, 3003, 5052	Batch construction of residential and commercial buildings	Size deviation ≤ ±5mm, flat surface without waves
Size (Width × Length)	Custom Size: Width 500-1500mm, Length up to 6000mm	3003, 5052, 5083	Special-shaped roofs, large-span industrial buildings	No creases, surface scratch depth ≤ 0.01mm
Alloy Types	1xxx Series (1060, 1100)	1060 (99.6% Al)	Indoor awnings, temporary buildings, decorative roofs	Good corrosion resistance, low strength
	3xxx Series (3003)	3003 (Al-Mn)	Residential roofs, commercial buildings, agricultural greenhouses	Enhanced strength vs. 1xxx, excellent weldability
	5xxx Series (5052, 5083)	5052 (Al-Mg), 5083 (Al-Mg-Mn)	Coastal buildings, industrial workshops, high-wind areas	Superior corrosion resistance, high tensile strength

Detail Images

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Frequently Asked Questions (FAQ)

1. Which aluminum alloy series is best for coastal building roofs?

The 5xxx series (such as 5052 or 5083 Al-Mg alloys) is highly recommended for coastal environments due to its superior resistance to salt spray and corrosion compared to the 1xxx or 3xxx series.

2. What is the difference between PVDF and Polyester (PE) coatings?

PVDF coating offers premium weatherability with a lifespan of 20+ years, making it ideal for harsh industrial and coastal environments. Polyester coating is more economical, offering a weather resistance of 10+ years, suitable for inland residential and commercial buildings.

3. How does thickness affect the performance of aluminum roofing sheets?

Thinner sheets (0.2mm - 0.5mm) are lightweight and suitable for residential awnings or temporary structures. Medium thickness (0.5mm - 0.8mm) works well for standard residential and commercial roofs. Thick sheets (0.8mm - 1.2mm) offer the highest structural strength and are preferred for large-span industrial workshops or high-wind environments.

4. Why should I choose anodized or embossed aluminum sheets?

Anodizing provides an electrolytic oxide film that increases corrosion protection and allows for beautiful dyed finishes. Embossing adds decorative patterns, improves slip resistance, and helps mask minor surface scratches or manufacturing defects.

5. Can I order custom sizes for large-scale projects?

Yes, custom sizes are available. While standard widths are 1000mm, 1220mm, and 1250mm, custom widths can range from 500mm to 1500mm, and lengths can extend up to 6000mm to fit specific large-span industrial buildings.