At present, pure titanium material is the lightest among glasses materials, and has the advantages of light weight, high hardness, corrosion resistance, anti-allergy, anti-fatigue and so on.
Now, titanium frames are becoming more and more popular, and it has become a fashion, especially for the middle and high-end business elites, who also respect pure titanium frames. But titanium frames are more expensive than other metal, sheet or plastic frames.
The advantages of "titanium" material:
Why are titanium frames more expensive than frames made of other materials?
First, let's take a look at the difference between pure titanium eyeglass frames and other materials.
(1) Light weight, about 40% of stainless steel.
(2) High hardness, about twice that of stainless steel and ordinary steel, twice that of iron, and six times that of aluminum. In the ultra-low temperature world, titanium will become more rigid and have superconducting properties, and steel will become weak and impotent. "Titanium submarines" made of titanium alloys can dive to a depth of 4,500 meters. Generally, steel submarines are easily crushed by water pressure when they exceed 300 meters.
(3) Corrosion resistance and no rust. Titanium will not rust when immersed in the sea for 5 years, but steel will corrode and deteriorate in seawater. The outer shell of the boat is made of titanium alloy, which cannot be corroded by sea water. Therefore, titanium is often used to make equipment such as chemical industry, seawater desalination, seawater cooling in power plants, or glasses, watches...
(4) Good thermal conductivity, the thermal conduction speed of titanium is about the same as that of stainless steel.
(5) Good touch, the touch of titanium metal is warm and smooth, and there is no cold feeling of other metals.
(6) Non-allergic materials, titanium is a material that is harmless to the human body, and because it does not cause allergic reactions to the human body, it is one of the few metal materials used in the human body in medicine (such as artificial tooth roots, artificial bones...)
(7) Titanium can also be used with metal nickel to make a "memory alloy" with memory function. If the car shell made of this "memory alloy" is deformed after a crash accident, it only needs to be washed with water at a specific temperature, and the shape of the car will be restored to its original shape.
