The difference between pure titanium frames and titanium alloy frames

Titanium is widely used in the eyewear industry because it is not easy to deform, fade, and has strong stability. Eyeglass frames made of titanium can highlight noble quality and elegant temperament. The so-called pure titanium refers to titanium metal materials with a titanium purity of more than 89%. 

Many people have a misunderstanding about pure titanium. They think that if it does not reach 100% purity, it is not truly pure titanium. This view is wrong. Since its inception, pure titanium glasses have been very popular among glasses wearers because of their light weight, good corrosion resistance, high melting point, strong stability, and good affinity for the human body. However, due to its poor elasticity and welding performance, many factories often add aluminum, vanadium, molybdenum and other metal elements to titanium metal to form titanium alloys. At present, many glasses sellers take advantage of consumers' blind spots in glasses, use titanium alloy to look like real ones, and sell them as pure titanium glasses to seek profits. 

In terms of price, pure titanium frames are much more expensive than titanium alloy frames. In order to prevent unscrupulous merchants from using titanium alloy frames as pure titanium frames, we will teach you some simple identification methods: 

Method 1: Weigh the weight by hand. Usually the specific gravity of the alloy frame is about 8.9g/cm3, and the specific gravity of the pure titanium frame is 4.5g/cm3. Since the weight of titanium material is equivalent to half of the alloy frame, it is lighter when weighed by hand. This is one of the simple ways to distinguish titanium frames from non-titanium frames. 

Method 2: Observe the welding points of the nose pad stem and the nose pad box. The welding of pure titanium materials is oxygen-free butt welding, and the weld marks are in the shape of "steps"; the welding of alloy materials is spot welding, and the weld marks are in the shape of "slopes". This is One of the effective ways to distinguish titanium frames from non-titanium frames, full titanium frames and non-full titanium frames.

Method 3: Observe the hinge joint to see if there is a gasket. It is not suitable for titanium to be in direct contact with titanium at the hinge of a pure titanium frame. Otherwise, wrinkles at the joint and poor opening and closing of the temples may easily occur. Usually two thin gaskets are embedded in the hinge part of the pure titanium mirror to separate the upper and lower hinges. Therefore, checking whether there are gaskets at the hinge is also a good way to identify whether it is a pure titanium frame.

Method 4: Use magnets for magnetic reaction to loosen the hinges of the frame as much as possible, and use magnets to attract them in a free-moving state. If the temples sway under the attraction of magnets, it means that the frame is not made of pure titanium, and vice versa. The frame may be titanium.

Although pure titanium frames have more quality advantages, titanium alloy frames are also accepted by consumers for their higher cost performance. IFV glasses also provide frames of various materials including pure titanium frames and titanium alloy frames. IFV Glasses guarantees that the product information provided is accurate and will not be confused with the real thing.

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