I. The Allure of Titanium Glasses Frames

1. Lightweight and Comfortable: Titanium glasses frames are significantly lighter than their counterparts made of stainless steel or other metals. Weighing around 40% less than stainless steel, they reduce pressure on the nose and ears, providing unparalleled comfort even during extended wear. This makes them an ideal choice for those who prioritize comfort.
2. Highly Durable and Strong: Titanium is remarkably strong, being twice as strong as stainless steel and six times stronger than aluminum. It can withstand the rigors of daily use and is especially suitable for active individuals. Its durability also makes it a cost - effective long - term investment.
3. Corrosion Resistant and Non - rusting: Titanium's resistance to corrosion is outstanding. It can remain unaffected even after soaking in seawater for 5 years, while steel would corrode. This property makes it suitable for various applications, including eyewear, and ensures a long - lasting frame.
4. Pleasant to the Touch: Titanium has a warm and smooth texture, offering a unique tactile experience that sets it apart from other metals.
5. Hypoallergenic: As a body - safe material, titanium rarely causes allergic reactions. This makes it an excellent option for people with sensitive skin, increasing its appeal among a wide range of consumers.
6. Stable in Air: Unlike some metals that tarnish due to oxidation, titanium maintains its color and integrity at room temperature, thanks to its excellent resistance to oxidizing agents, alkalis, and salts.

II. Types of Titanium Materials in Glasses Frames

1. Pure Titanium Frames: These frames offer high - quality performance in terms of appearance and strength. They are highly popular due to their superior characteristics.
2. Titanium Alloy Frames: These frames combine the benefits of titanium with other materials, offering more stylish options and a wider range of choices based on material quality and performance.
3. Beta Titanium Frames: Known for their enhanced strength and durability, beta titanium frames are a great choice for consumers seeking high - performance eyewear.

III. The Cost Factor of Titanium Frames

1. High Extraction Costs: Although titanium is abundant in reserves, its extraction process is costly and currently produces limited amounts. The high production costs are then passed on to consumers, contributing to the relatively high price of titanium frames.
2. Complex Manufacturing Process: Producing titanium frames requires specialized equipment, such as welding gear that is about 15 times more expensive than regular metal welding equipment. Special welding techniques are needed, and electroplating also involves multiple steps, all of which add to the overall cost.

IV. Identifying Pure Titanium and Alloy Spectacle Frames

1. Weight Test: Pure titanium frames are much lighter, with a density of about 4.5g/cm³, while alloy frames typically weigh around 8.9g/cm³. This significant weight difference can be felt by simply picking up the frames.
2. Washer Check at Hinges: Pure titanium frames often have two thin washers between the upper and lower hinge parts to prevent wrinkling and ensure smooth movement. Checking for the presence of these washers can help identify pure titanium frames.
3. Welding Point Inspection: The welding of pure titanium is oxygen - free butt welding, resulting in “step” - shaped welding traces, while alloy material uses spot welding with “slope” - shaped traces.
4. Magnet Test: Pure titanium frames are non - magnetic. Using a magnet to test the frame can help determine if it is made of pure titanium or an alloy.