I. Material comparison analysis
1. Stainless Steel
Advantages:
High strength and corrosion resistance: widely used in medical, construction and high-end consumer electronics fields, scratch-resistant and oxidation-resistant.
High-grade visual texture: mirror reflection effect after mirror polishing, reflecting exquisiteness and calmness.
Good structural stability: small deformation after long-term use.
Disadvantages:
Heavy weight: density is about 7.8 g/cm³, which is not conducive to lightweight requirements.
High processing difficulty: high hardness, relatively high cutting and molding costs.
Poor thermal conductivity: affects heat dissipation performance.
Applicable scenarios:
High-end mobile phone middle frame (such as iPhone Pro series), mechanical watch case, luxury structural parts.
2. Aluminum Alloy
Advantages:
Lightweight: density is about 2.7 g/cm³, suitable for portable devices and structural weight reduction requirements.
Strong thermal conductivity: conducive to thermal management system design.
Excellent processability: easy to process by CNC, stamping, anodizing, etc.
Disadvantages:
Relatively low strength: easy to deform and scratch.
Slightly more corrosive: the surface needs to be treated to improve durability.
Applicable scenarios:
Notebook housings, aviation parts, bicycle frames, heat dissipation components.
3. Carbon Fiber
Advantages:
Extremely high strength-to-weight ratio: strong rigidity and light weight (about 1.6 g/cm³).
Futuristic appearance: the woven texture becomes a symbol of high performance and technology.
Excellent fatigue resistance: stable performance under repeated loads.
Disadvantages:
High processing difficulty: composite molding is required, and edge sealing is required after cutting.
High cost: expensive materials and processing processes.
Easy to crack: not suitable for impact loads.
Applicable scenarios:
Racing cars, drones, high-end sports equipment, high-performance notebook housings.
2. Surface technology: mirror coating and anti-glare design
1. Mirror coating
Technical realization:
Through electroplating, vacuum coating (such as PVD), nano coating and other methods, a high reflective film layer is formed on the surface of the material to achieve a mirror visual effect.
Function and characteristics:
Enhance decorativeness and improve texture (such as mirror stainless steel mobile phone frame).
Improve surface hardness and corrosion resistance (such as titanium PVD).
Commonly found on metal, opaque glass or composite material surfaces.
Precautions:
High coating uniformity is required to avoid orange peel or ripple phenomenon.
Mirror materials are easy to leave fingerprints and need to be used in combination with anti-fingerprint coating.
2. Anti-glare design (Anti-Glare)
Technical realization:
Micro-texture treatment: Change the surface microstructure through sandblasting, etching or nano-imprinting to scatter the incident light.
Matte coating: Reduce surface reflectivity.
Optical film materials: Such as AG film is widely used in screen protection layer.
Functions and features:
Improve readability and comfort, prevent light spots and glare reflections.
Especially critical outdoors or in strong light.
Commonly used on electronic displays, smart glasses, and car HUD surfaces.
Applicable materials:
Anti-glare technology is more suitable for medium-reflectivity materials such as glass, plastic, and aluminum alloy, while mirror design is usually used for materials that emphasize glossiness such as stainless steel or electroplated plastic.
