Customized Flat Sapphire Watch Glass With Transparent Color
FATURES
1.High transmittance
2.High mechanical strength
3.High temperature resistance
4.Scratch resistance
5.Abrasion resistance
6.Customized shape
7.Optional color
These excellent optical, mechanical, thermal, chemical and
electrical properties determine its important position and role in
the military and civilian fields.
(1) Chemical stability: Sapphire has a high degree of chemical
stability and will not be corroded during most chemical reactions.
(2) Mechanical properties: Due to its high hardness and high
strength, sapphire single crystal can maintain high strength, wear
resistance and high stability in different environments ranging
from ultra-low temperature to 1500 ℃ high temperature. At the same
time, it is the oxide crystal material with the highest hardness
currently known, second only to diamond up to 9 on the Mohs scale.
(3) Optical transmittance: The penetration wavelength range of
sapphire single crystal material is 0.19nm-5.5nm, coupled with its
excellent chemical stability, abrasion resistance, high hardness
and high temperature resistance, make the windows made of sapphire
and Sensor optical parts are widely used in high vacuum systems,
high temperature furnaces and other harsh environments.
(4) Thermodynamic properties: The melting point of about 2050°C,
coupled with superior chemical, mechanical and optical properties,
make sapphire crystals widely used in many harsh processing
environments.
(5) Wear resistance: Because of its high hardness and transparency,
sapphire crystals are often used to make wear-resistant windows or
other precision mechanical parts.
(6) Dielectric properties: dielectric insulation and constant
dielectric constant.
(7) Sapphire also has high tensile strength, erosion resistance,
thermal conductivity, and remarkable thermal shock resistance.
| Property | Specifications |
| Thickness | 0.5-200mm |
| Size Tolerance | ±0.01 |
| Edge Finish | Ground and beveled |
| Surface Quality | 40-20 scratch-dig |
| Surface Flatness | λ/4@633nm |
| Parallelism | ≤3 arc min(≤0.9mrad) |
| Clear Aperture | ＞80% of central diameter |
| Hardness(Knoop) | 1370 kg/mm2 |
| Young's modulus | 3.4*1011N/m2 |
| Thermal Limit | 22W/m/K |
| Thermal expansion coefficient | 8.4*10-6/K |
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.
