How to Choose a Pair of Titanium Glasses?

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How to Choose a Pair of Titanium Glasses?

Titanium is widely used in the eyewear industry because of its excellent properties, including resistance to deformation and discoloration, as well as strong stability, etc. Spectacle frames made of titanium can be divided into three types: pure titanium, titanium alloy, and beta-titanium frames. The following is to understand how titanium alloy frames are, and how to identify pure titanium frames, which will help you when you need to choose a pair of titanium glasses.

Titanium Glasses

Titanium Glasses

Features of Titanium Alloy Frames

Titanium alloy spectacle frames have low density, high strength, good mechanical properties, and strong corrosion resistance. The spectacle frames made of titanium alloy are lightweight and not easily corroded by moisture. Also, it has a much lower density than ordinary spectacle frames, so it has strong firmness and is not easy to fall off or damage the skin.

However, due to the poor technical performance of titanium alloys and the extremely difficult cutting processes, the finished spectacle frames absorb more chemical impurities such as hydrogen, oxygen, nitrogen, and carbon.

Besides, titanium alloy has poor abrasion resistance and a complicated production process. Therefore, the cost of this kind of material is relatively high and the workmanship is complicated, so it is much more expensive than ordinary eyeglass frames.

Spectacle Frame

Spectacle Frame

Pure Titanium VS Titanium Alloy

Titanium alloy frames are slightly heavier than pure titanium frames, but both are high-quality materials and they look comfortable in appearance.

The spectacle frame made of pure titanium will not contact with oxygen in a vacuum during the welding process. The titanium alloy spectacle frames are welded with a "slope" shape. This is one of the most effective ways to distinguish the two types of spectacle frames.

Pure titanium frames will not directly contact titanium at the hinge, while the titanium alloy spectacle frame will directly contact titanium, which may easily cause wrinkles at the joints and obvious unsmoothed temples.

The specific gravity of pure titanium is generally 4.5, while that of titanium alloy is 8.9, which is equivalent to half of the titanium alloy. So spectacle frames made of pure titanium are lighter to carry by hand, which is the easiest way to distinguish these two types of spectacle frames.

Pure titanium spectacle frames are mainly made of 99% high-purity titanium, without other materials. The lens ring of the titanium alloy frame is mainly titanium alloy, which makes the firmness of the glasses better.

Titanium Frame

Titanium Frame

How to identify pure titanium frames?

With its advantages of being lightweight, corrosion resistant, anti-allergy, anti-fatigue, and high strength, pure titanium glasses frames are becoming the first choice for fashion consumption by more and more college students, white-collar workers, and elites.

How much do you know about pure titanium frames? With the development of titanium materials and the increasingly mature processing technology, many titanium-based frames such as pure titanium, beta-titanium, and memory titanium have appeared on the market.

However, due to the profiteering of illegal merchants and the inability of our consumers to identify them, many low-quality, fake, and counterfeit pure titanium glasses frames have appeared. In the following, we will introduce several easy methods for identifying pure titanium spectacle frames.

1. Feel the Weight

Usually, the specific gravity of the alloy frame is about 8.9g / cm3, while that of the pure titanium frame is 4.5g / cm3. Because the amount of titanium material is equivalent to half of the alloy frame, it is lighter to hold it by hand. This is one of the easiest ways to distinguish between titanium and non-titanium frames.

2. Spacer

The second method to identify pure titanium spectacle frames is to observe whether there is a spacer at the hinge joint. Pure titanium frames should not have titanium in direct contact with the titanium at the hinges, otherwise, wrinkles at the joints and poor tension of the temples may occur. Usually, two thin spacers are set in the hinge part of the pure titanium mirror to separate the upper and lower hinges. Therefore, checking for the presence of spacers at the hinge is also a good way to identify if it is a pure titanium frame. When you look at the hinge joint from the inside of the frame, you will find a small groove, which is a special design for easy removal of the spacer.

3. Welding Point

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

4. Magnetic Reaction

The fourth method to identify pure titanium spectacle frames is to use magnets for magnetic reactions. Loosen the frame hinges as much as possible and use magnets to attract them in a freely moving state. If the temple shakes under the attraction of the magnet, it means that the frame is not pure titanium, otherwise, it means that the frame may be a titanium frame.

Advanced Refractory Metals

Advanced Refractory Metals (ARM) is a leading manufacturer & supplier known predominantly for the core products Tungsten, Molybdenum, Tantalum, Rhenium, Titanium, and Zirconium.

Headquartered in Lake Forest, California, Advanced Refractory Metals (ARM) specializes in providing high-quality refractory metal products to customers from all over the world since 1994. Please visit https://www.refractorymetal.org for more information.

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