How to identify whether the glasses frame is pure titanium
Among many glasses frame materials, pure titanium has become the first choice for many glasses wearers because of its excellent properties such as lightness, corrosion resistance, high strength, and anti-allergy. However, there are many types of spectacle frames on the market, and it is difficult to distinguish the authenticity from the fake ones. How to accurately identify whether a pair of spectacle frames is made of pure titanium has become the focus of many consumers. This article will help you easily identify pure titanium glasses frames through several simple and practical methods.
1. Observe weight and texture
First of all, a distinctive feature of pure titanium eyeglass frames is its light texture. Generally speaking, the specific gravity of pure titanium eyeglass frames is about 4.5g/cm³, which is much lower than the 8.9g/cm³ of alloy eyeglass frames. Therefore, by weighing the weight of the spectacle frame with your hands, you can initially determine whether it is made of pure titanium. If your eyeglass frame feels unusually light, there's a good chance it's pure titanium.
2. Check the welding points
The welding process of pure titanium spectacle frames usually uses vacuum oxygen-free butt welding technology. This welding method will form a unique "step"-shaped weld mark at the welding point. The welding of alloy glasses frames is mostly spot welding, and the weld marks appear in a "slope" shape. Therefore, carefully observe the welding points of the nose pad stem and nose pad bucket of the spectacle frame. Through the shape of the weld marks, you can further determine the material of the spectacle frame.
3. Observe the hinge part
The design of the hinges of pure titanium eyeglass frames is very particular. Due to the characteristics of pure titanium material, the hinges should not be in direct contact with titanium, otherwise it will cause wrinkles at the joints and poor opening and closing of the temples. Therefore, regular pure titanium eyeglass frames usually have two thin gaskets inlaid in the hinge area to separate the upper and lower hinges. Checking whether there are gaskets at the hinges is also one of the effective ways to identify pure titanium eyeglass frames.
4. Utilize magnetic reaction
Pure titanium is a non-magnetic metal and has no attraction to magnets. Therefore, you can loosen the hinge of the glasses frame as much as possible and use magnets to attract it while it is free to move. If the temples sway under the attraction of the magnet, it means that the glasses frame is not made of pure titanium; conversely, if the temples do not respond to the magnets, then it is likely to be pure titanium.
5. Check the logo and certificate
Regular pure titanium eyeglass frames are usually clearly marked with the words "PURE TITANIUM" or "Ti-P" on the temples or lenses to indicate their material. In addition, some high-end brands will also come with documents such as material certificates or quality assurance certificates. Therefore, when purchasing glasses, be sure to ask the merchant to provide these logos and certificates to ensure the authenticity of the frames.
Through the above simple and practical methods, we can easily identify whether the glasses frame is made of pure titanium. When buying glasses, it is recommended that you pay more attention to these details and choose frames that truly suit you. After all, a good pair of glasses not only protects the health of our eyesight, but also becomes a fashion accessory in our daily lives.
