Titanium alloy glasses have become the mainstream choice in the high-end eyewear market due to their characteristics such as lightweight, high strength, corrosion resistance and skin-friendliness. The following is an analysis from the aspects of material advantages, application scenarios, process characteristics and key points for selection:
1. Ultimate lightweight - no burden to wear
Data comparison: The density of pure titanium is only 4.5g/cm3, which is 57% of that of steel and 60% of that of aluminum. A pair of titanium alloy frames weighs about 8 to 15 grams, which is 30% to 50% lighter than traditional copper-nickel alloys.
Application scenarios: Office workers who wear the lenses for long periods of time, users with high myopia (heavy lenses), to relieve pressure on the bridge of the nose and ears.
2. High strength and fatigue resistance - durable
Mechanical properties: The tensile strength of titanium alloys (such as β-Ti) can reach 800-1200 mpa, approaching that of stainless steel, and their elastic modulus (100GPa) is lower than that of steel. They can restore their shape by themselves after being twisted by external forces.
Typical case: The sports glasses have not deformed after 100,000 opening and closing tests and are suitable for outdoor and fitness scenarios.
3. Excellent corrosion resistance - adaptable to complex environments
Corrosion resistance: Titanium forms a dense oxide film (TiO2) on its surface in media such as sweat, seawater, and cosmetics, with a corrosion rate of less than 0.001mm/year, which is far superior to alloy copper (prone to rust).
Suitable for: Users who sweat a lot and wearers in coastal areas. The frame is less likely to develop green rust.
