2mm Thickness Sapphire Crystal Glass , Sapphire Coated Mineral Crystal For Quartz Watches

Laser Cutting Single Dome Crystal Sapphire Watch Glass For Quartz Watches

Sapphire glass (SAPPHIRE CRYSTAL) 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 produced easily and cheaply in the laboratory. Its chemical composition and physical properties are the same as natural sapphire.

Artificial sapphire is made of bauxite (alumina) and mixed with oxygen and hydrogen.

During manufacturing, alumina is first decomposed at a high temperature of 1200 degrees, and then the material reaches a melting point of 2050 degrees. After 15 hours, a rod will be formed. It is fired again at a high temperature of 1800 degrees to ensure the stability of the material.

Next, the diamond polishing blade will cut it to the required thickness, and after polishing, it can be made into an arc or semicircular crystal surface.

After being polished, in order to ensure a tight fit with the watch case, the semi-finished product needs to be further chemically polished.

Immediately afterwards, these sapphire crystals will go to the furnace of the dust-free laboratory, where they will be anti-glare treated by a precision vacuum evaporation process.

The sapphire crystal after anti-glare treatment can reduce 99% of the reflected light entering the naked eye, and the looming blue film plays this role.

If it is a regular brand watch, the sapphire glass is usually printed on the back cover of the watch, which is expressed in English SAPPHIRE or Sapphire Crystal. Even if it is a fake watch or a counterfeit watch, the use of sapphire watch glass is common. To test the hardness of the watch glass, you can use a sharp metal object similar to a needle to scratch the most unobtrusive part of the edge of the watch glass. It feels very hard, and it feels like a metal object drifts by. The glass is not scratched. It should be sapphire glass.

Why US?

1. We’re the rare source manufacturer of color sapphire boule, and the most professional factory of sapphire processing, especially the special watch case.

2. We have our own sapphire grown equipent with CZ and KY method.

3. Professional customized production according to the drawing provided by clients.

4. Precision work of sapphire processing and polishing.

5. Experienced technicians and skilled workers.

FQA

1. Are you a trading company or factory?

We are a professional factory of sapphire products, also a trading company .

2.Can you do customized products?

Yes, we specialized in customized production or OEM work.

CAD,3D drawing are needed.

3.Could you provide samples?

Yes, we could provide samples with a charge, but if you place the order with a quality above 100pcs, the sample charge will be refunded.

4.What’s the delivery time?

It depends on the type of products and the quality.

For watch case, the regular time is around 5-8 weeks for 200pcs according to the difficulty of the processing.

5.How about the payment?

T/T payment is prefered.

6.How about the delivery?

Mostly by air, like DHL, Fedex.