Home Application3104 Aluminum Alloy Strip for Backboard
2025-03-06 07:31:46
3104 aluminum alloy strip is a suitable and cost-effective material for backboards in many applications due to its balance of strength, corrosion resistance, formability, and weight. Carefully consider the specific requirements of your application when selecting the appropriate thickness, surface finish, and manufacturing processes.
Mainly used for can cover, lamp, back board of plasma and LCD TV and so on.
Stable mechanical properies and good ductility, for can cover stock, it can meet reguirements for TV backboard stock,no cracks aftetpunching icm convex hull, no warpings after cutting small panels.
Good flatness can meet requirements for backboard stock。
Better surface, clean and fat surface,free of corrosive spot, wrinkle, non-metalic roll-in,scratch,oil stain, impact or other defects.
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Alloy |
Temper |
Performance Data |
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Yield Strength(Mpa) |
Tensile Strength((Mpa) |
Elongation(%) |
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3104 backboard |
O |
70-90 |
170-190 |
≥6 |
3104 aluminum alloy is a wrought alloy known for its good strength, weldability, formability, and corrosion resistance. It's a non-heat-treatable alloy. Its typical composition includes:
Aluminum (Al): > 97%
Manganese (Mn): 0.8 - 1.3%
Magnesium (Mg): 0.8 - 1.3%
Iron (Fe): Up to 0.7%
Silicon (Si): Up to 0.5%
Copper (Cu): Up to 0.25%
Zinc (Zn): Up to 0.25%
Here's a summary of its key properties:
Moderate Strength: Higher strength than 1xxx and 3003 aluminum alloys, but lower than 5xxx and 6xxx series.
Excellent Corrosion Resistance: Similar to other 3xxx alloys, offering good resistance to atmospheric corrosion.
Good Weldability: Suitable for welding using common methods like MIG and TIG.
Good Formability: Can be readily formed and drawn into various shapes.
Non-Heat-Treatable: Strength cannot be increased through heat treatment.
Recyclable: Aluminum is highly recyclable.
Good Anodizing Response: Can be anodized for enhanced corrosion resistance and decorative finishes.
Several factors make 3104 aluminum alloy a suitable choice for backboards:
Strength-to-Weight Ratio: Provides sufficient strength and rigidity for supporting internal components without adding excessive weight to the device.
Corrosion Resistance: Protects internal components from environmental factors like humidity and dust.
Formability: Allows for easy shaping of the backboard to accommodate connectors, mounting points, and other features.
Cost-Effectiveness: Generally more affordable than higher-strength aluminum alloys or other materials like steel.
Thermal Management: Aluminum has good thermal conductivity, which can help dissipate heat generated by internal components (though not as effective as alloys specifically designed for thermal management).
EMI/RFI Shielding (Limited): Aluminum can provide some level of shielding against electromagnetic interference (EMI) and radio frequency interference (RFI), which can be important for electronic devices.
Aesthetics: Can be finished with various coatings or anodizing to achieve a desired aesthetic appearance.
Structural Support: Provides a rigid structure to support the display panel, circuit boards, power supplies, and other components.
Mounting Points: Can be easily formed with mounting holes or brackets for attaching the backboard to the device's frame or enclosure.
Connector Cutouts: Allows for precise cutouts for various connectors (HDMI, USB, power, etc.) to be easily accessible.
Heat Dissipation: Can help dissipate heat generated by internal components, preventing overheating and extending the lifespan of the device.
Electrical Grounding: Can be used to provide an electrical ground for the internal components.
Thickness: The thickness of the aluminum strip will depend on the size and weight of the device, as well as the desired level of rigidity. Thicker material provides more strength but adds weight and cost.
Surface Finish: The surface finish should be selected based on the desired aesthetic appearance and functional requirements. Options include mill finish, anodized, painted, or powder-coated.
Forming Process: The forming process should be carefully controlled to avoid cracking or damaging the aluminum. Deep drawing, bending, and stamping are common forming methods.
Joining Methods: The backboard may need to be joined to other parts of the device using screws, rivets, or adhesives.
Thermal Design: If heat dissipation is a major concern, consider using an aluminum alloy with higher thermal conductivity or incorporating additional heat sinks.
While 3104 is a good choice, here are some alternative materials depending on specific needs:
5052 Aluminum: Higher strength and better corrosion resistance than 3104, but can be more expensive.
6061 Aluminum: Higher strength than 3104, and can be heat-treated for even greater strength, but it is more expensive and typically less formable than 3104.
Steel: Stronger and more rigid than aluminum, but also heavier and more prone to corrosion. Often used when structural integrity is paramount.
Plastic (ABS, Polycarbonate): Lighter and less expensive than aluminum, but less strong and may not provide adequate heat dissipation or EMI/RFI shielding.
Magnesium Alloys: Very lightweight and strong, but more expensive than aluminum and can be more susceptible to corrosion.
Aluminum Distributors: Companies specializing in aluminum products (sheets, strips, extrusions, etc.).
Metal Fabricators: Companies that can form, cut, and finish aluminum to your specifications.
Online Metal Marketplaces: Websites like Alibaba, ThomasNet, and IndustryNet.
When contacting suppliers, provide them with the following information:
Alloy: 3104 aluminum alloy
Temper: (e.g., H14, H16, H18, depending on the desired hardness)
Thickness: Specify the desired thickness in mm or inches.
Width and Length: Dimensions of the strip.
Surface Finish: Mill finish, anodized, painted, etc.
Quantity: The number of backboards you need.
Drawings/Specifications: Provide detailed drawings or specifications for the backboard.
