Several methods to identify pure titanium frame

If you follow our post, you'll see that we post titanium eyewear products from time to time. After titanium was used as the material of eyeglasses frame, pure titanium eyewear, beta titanium eyeglasses and titanium alloy glasses appeared in eyewear industry. We have cooperated with titanium eyewear customers from the United States, Germany. But there are many eyewear manufacturers often add aluminum, vanadium, molybdenum and other metal elements into titanium to form titanium alloy. They use titanium alloys to confuse the real with the false, and use consumers' blind spot on eyewear to sell them as pure titanium eyeglasses for profit.  Do you know how to identify pure tianium glasses.Here, we introduce several methods to identify whether pure titanium eyewear method, hope to help you.

1、Observe the welding points of the nose pad stem and nose pad box

The welding of pure titanium material is oxygen-free butt welding, and the welding mark is "step"; the welding of alloy material is spot welding, and the welding mark is "slope". This is one of the effective methods to distinguish titanium frame from non titanium frame, all titanium frame and non all titanium frame.

2、Observe the hinge joint, whether there is a gasket

The pure titanium frame should not make direct contact between titanium and titanium at the hinge part, otherwise it is easy to cause wrinkles at the joint and poor opening and closing of the temples. Usually, two thin gaskets are embedded in the hinge part of the pure titanium eyewear frames to separate the upper and lower hinges. Therefore, checking whether there are gaskets at the hinges is also a good way to identify whether it is a pure titanium glasses. Looking at the hinge joint from the inside of the eyewear frame, you will find a small groove, which is specially designed to facilitate the removal of the gasket.

3、Magnetic Reaction with Magnets

Loosen the hinge of the eyewear frame as much as possible, and use a magnet to attract it in a free-moving state. If the temples shake under the attraction of the magnet, it means that the frame is not a pure titanium material, otherwise it means that the frame may be a titanium frame.

The reaction of titanium eyewear to magnet is obviously different from that of metal eyewear

4、Weight

Usually, the specific gravity of the alloy frame is about 8.9g/cm3, and the specific gravity of the pure titanium glasses is 4.5g/cm3. Since the weight of the titanium material is equivalent to half of the alloy frame, it is lighter to weigh by hand. This is one of the easy ways to differentiate titanium frames from non-titanium frames.

5、Printing on the temple or lens

In order to prevent unscrupulous traders from using titanium alloy frames as pure titanium frames, consumers can refer to the above introduction for identification. Titanium spectacle frames, according to the type of titanium used, are engraved on the frame in abbreviated form, usually on the temples, as long as you pay attention, it is easy to distinguish.