1. the weight is different:

Titanium alloy eyeglass frames are slightly heavier than pure titanium eyeglass frames, but both are high-quality materials, so they feel more comfortable in appearance. The specific gravity of pure titanium is generally 4.5, while titanium alloy is 8.9. The material is half that of titanium alloy. Therefore, the spectacle frames made are lighter when weighed by hand, which is the easiest way to distinguish these two spectacle frames.

2. The appearance of welding points is different:

The spectacle frame made of pure titanium will not come into contact with the oxygen in the vacuum during the welding process. The welding of spectacle frames of titanium alloy materials (called: spot welding), the traces of welding are like "slope" shapes, which is one of the most effective ways to distinguish these two spectacle frames.

3. The difference in density:

The characteristics of spectacle frames are low density, high strength, good mechanical properties, and strong corrosion resistance. The resulting spectacle frame is very light in texture and is not easily corroded by moisture. However, due to the poor process performance of titanium alloy, cutting and processing are very difficult, so the spectacle frame made of it absorbs more chemical impurities such as hydrogen, oxygen, nitrogen, and carbon.

The wear resistance of titanium alloy is relatively poor, and the production process is relatively complicated, so every time you use this material to make spectacle frames, the cost is relatively high and the workmanship is relatively complicated, so the price is much more expensive than ordinary spectacle frames.

The spectacle frame made of titanium alloy has a much lower density than ordinary spectacle frames, so its firmness is very strong, and it is not easy to fall off or damage the skin.he pure titanium spectacle frame is at the hinge and will not come into direct contact with titanium. The titanium alloy spectacle frame will directly contact titanium, which is likely to cause wrinkles at the junction and obvious poor opening and closing of the temples.