What kinds of common glass covers are sapphire glass covers scratch-resistant?

Glass is not only transparent, but also has high strength and hardness. It is an indispensable material in daily production and life. There are many types of glass. In addition to the more common float glass and tempered glass, there are also varieties with special properties such as hot-melt glass, laminated glass, and frosted glass. If you want to know which kinds of common glass covers and sapphire glass covers are scratch-resistant, you will know after reading this article.

1. What kinds of common glass surface masks are there?

There are mainly four types of common surface and cover materials:

1. Sapphire crystal

The physical and chemical properties are stable, and the hardness is second only to diamond. It can solve the problems of scratching, aging, corrosion and so on.

2. Anti-glare sapphire crystal

Special anti-glare materials are coated on both sides of the watch mirror to ensure the visibility of the dial.

The physical properties are stable, and the outer coating film is prone to scratches.

Color: white (sapphire)/red (ruby)

3. Synthetic crystal glue (acrylic)

Not scratch-resistant but can be polished (polishing supplies: toothpaste).

4. Mineral glass (cheap watch)

The anti-wear ability is good, but the anti-vertical strike ability is average.

2. Is the sapphire glass watch scratch resistant?

Sapphire glass generally refers to synthetic sapphire, which is very different from the jewelry that people usually understand-natural sapphire, and is generally used for the manufacture of watch mirrors.

It is anti-wear materials with tungsten-titanium alloy and high-tech ceramics. Although these materials are resistant to abrasion, they cannot withstand strong impacts. At the same time, some materials with the same or higher hardness (such as: grindstone, sandpaper, nail file, granite surface, concrete wall and floor, etc.) may be affected. Scratch the surface of these materials.

Sapphire is a general term for corundum gemstones of other colors besides red rubies. The main component is alumina (Al2O3). Sapphire glass refers to synthetic sapphire. Gem-grade sapphire can be easily and cheaply produced in the laboratory. Its chemical composition and physical properties are the same as natural sapphire.

Related concepts

grass

Glass is an amorphous inorganic non-metallic material. It is generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw material, and a small amount of auxiliary raw materials are added. of. Its main components are silicon dioxide and other oxides. The chemical composition of ordinary glass is Na2SiO3, CaSiO3, SiO2 or Na2O·CaO·6SiO2, etc. The main component is silicate double salt, which is an amorphous solid with irregular structure. It is widely used in buildings to separate wind and transmit light. It is a mixture. There are also colored glass that is mixed with certain metal oxides or salts to show color, and tempered glass made by physical or chemical methods.

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Wristwatch, or wrist watch, refers to an instrument worn on the wrist to keep time/display time. The watch is usually made of leather, rubber, nylon cloth, stainless steel and other materials to make a strap, and the "head" that displays the time is tied to the wrist.