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What metals are the primary metals used in tinting sunglasses, and how thin are the metallic surfaces?

Why do people like wearing rimless glasses? Du liest What metals are the primary metals used in tinting sunglasses, and how thin are the metallic surfaces? 3 Minuten Weiter What metal finish would look best on sunglasses?

In the previous article, we discussed “Why do people like wearing rimless glasses?”. In this article, let’s talk about “What metals are the primary metals used in tinting sunglasses, and how thin are the metallic surfaces?”.

Alloy

Mainly it contains nickel alloy, high nickel, stainless steel, aluminum alloy. First, from the weight, road magnesium alloy is heavier than Stainless steel. And Stainless steel is heavier than Nickel alloy. Arranged from the cost, aluminum-magnesium alloy has the highest cost, and the second is Stainless steel, and the third is Nickel alloy. The last is High nickel. Nickel for glass materials is the most inferior, especially high nickel, containing more nickel not valuable. In reality, in addition to the gold frame, the cost of the metal frame is lower than the plate.

Pure Titanium

It means the Titanium materials with a purity of more than 89%. It has the advantages of light material, strong corrosion resistance, solid electroplating, no allergy. They have a good tactile feeling.

Titanium Alloy

It is usually a mixture of 50% titanium and 50% tin. There are titanium aluminum alloys. Because of the range, product quality is uneven, and the price is uneven. The different alloy materials determine the value. Memory titanium alloy has the performance of shape memory characteristics under 0℃. Between 0 and 40℃, it has the performance of high elasticity. Its wear resistance is lower than pure titanium. Usually, the pure titanium price is much higher than the other. Because its processing difficulty is really obvious, the processing cost is much higher than titanium alloy.

Copper Alloy Frame

The copper and copper alloy frame corrosion resistance is poor, easy to rust, but the cost is lower, easy to process. It is usually used to make low-grade glasses frames.

Some sunglasses are coated with a very thin layer of metal on the glass lens, but this metal film is quite thin and transparent. Some solid opacity is also relevant to its internal structure. For example, a piece of paper in the dry has poor transparency, but when wet or soaked in oil, transparency greatly improves. This is because the water and oil fill the internal holes of the paper, reducing the light loss caused by the diffuse reflection of light in the paper. Imagine when you make glass thick enough to block enough light, it will be opaque.

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