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Precision CNC Machining China Magnesium Alloy Laptop Housing Custom Manufacturing Service
Product Description
Magnesium alloy laptop housing is a 3C structural component made from high-strength magnesium alloys (such as AZ91D, AZ31B) through precision CNC machining and die-casting processes. This housing can be as thin as 0.5-1.0mm, meeting the lightweight and high-strength requirements of modern ultra-thin laptops. Magnesium alloy has a density that is only 68% of aluminum alloy, 27% of zinc alloy, and 23% of steel, making it one of the lightest structural alloys available.
Features
Lightweight Design: Low density (approximately 1.8 g/cm³) reduces laptop housing weight by 30-50%, significantly enhancing portability.
Excellent EMI Shielding: Capable of completely absorbing electromagnetic interference exceeding 100dB, meeting EMC requirements without additional conductive coating.
Efficient Thermal Management: Thermal conductivity is 100 times that of plastic, quickly dissipating CPU heat to prevent system overheating.
High Rigidity and Impact Resistance: Resists breaking when dropped from 1-meter height or impacted by 5-pound free-falling objects, effectively protecting internal components.
Good Corrosion Resistance: 8 times more corrosion-resistant than carbon steel and 4 times more than aluminum alloy in salt spray tests.
Environmentally Friendly and Recyclable: Fully recyclable with recovery value 10 times that of steel products.
Technical Parameters
Parameter
Specification
Test Standard
Common Material Grades
AZ91D, AZ31B, AZ80, ME20
GB/T 5153-2016
Thickness Range
0.5mm - 2.0mm
Custom Requirements
Tensile Strength
≥240 MPa (AZ91D)
ASTM E8
Yield Strength
≥200 MPa (AZ91D)
ASTM E8
Surface Hardness
60-90 HB
ASTM B647
EMI Shielding Effectiveness
>100 dB
IEC 61000-4-21
Thermal Conductivity
80-100 W/m·K
ASTM E1461
Machining Accuracy
±0.05mm
Customer Specification
Applications
Ultra-thin Laptops: Such as LG Gram series using AZ31B magnesium alloy, weighing only 1.35kg
Commercial Thin-and-light Laptops: Gaming laptops like Mechrevo JuGuang X using magnesium-aluminum alloy, weighing 2.2kg
Industrial Tablets: For industrial applications requiring high strength and EMI shielding
Military Rugged Equipment: Utilizing impact resistance and shock absorption properties
Aerospace Equipment: Leveraging high specific strength and lightweight characteristics
Customization Services
We provide comprehensive customized solutions:
Material Selection: Recommend appropriate grades based on customer requirements (AZ91D for high corrosion resistance, AZ31B for high formability)
Process Optimization: Determine optimal die-casting parameters through orthogonal experiments (pouring temperature 700°C, mold temperature 210°C, injection speed 5m/s)
Surface Treatment: Offer various surface treatment options including electroless nickel plating, spraying, and anodizing
Rapid Prototyping: Support small-batch sampling with 3-5 day delivery for prototypes
Mass Production: Monthly capacity of 500,000 pieces, supporting JIT delivery models
Support and Services
Technical Consultation: Provide material selection, structural design, and process optimization services
Quality Control: Implement full-process SPC statistical process control with 100% inspection of critical dimensions
Testing Services: Provide third-party authoritative test reports (including mechanical properties, salt spray tests, EMC tests)
After-sales Guarantee: Offer 12-month quality warranty period with rapid response to customer feedback
Logistics Support: Cooperate with major logistics providers to ensure on-time delivery worldwide
