Clear Transparent Sapphire Single Crystal Materials For Watchcases Back Glass Crown

Clear Transparent Sapphire Single Crystal Materials For Watchcases Back Glass Crown

Description:

Sapphire commonly known as corundum, the main component is Al2O3, is a common simple coordination type oxide crystal. Sapphires in nature show different colors due to the presence of some impurity ions, such as sapphire containing titanium ions (Ti3+) and iron ions (Fe3+) will show blue, containing chromium ions (Cr3+) will show red, and when containing nickel ions (Ni3+), it will make the crystal yellow. Pure alumina crystal is colorless and transparent, because of its unique crystal structure, excellent mechanical properties, optical properties and chemical stability, can be applied to the high temperature environment of 2000 ° C, so it is widely used in infrared military devices, satellite space technology, high-intensity laser window materials and semiconductor, large-scale integrated circuit substrate materials.

Processing:

Sapphire crystal hardness of up to 9, the world's only hardness of 10 diamonds more than it, so it is not afraid of scratching, because of the high hardness so it is very brittle, easy to break or fragmentation, so it can not use the traditional drilling or stamping processing, can only rely on the five-axis CNC drilling and fossilization of the round flat grinding head, according to the design drawing slowly to grind out the line, shape. Drill ‬ tens of thousands of speed per minute high-speed rotation, the shape, lines, holes, etc., slowly grind ‬ out layer by layer. Even ‬ ‬ screw holes ‬, tiny ‬ eye ‬ all ‬ grinding by ‬ ‬ out ‬! Abrasive wear rate is extremely high in the process of production, the average abrasive after grinding out 20 to 30 holes, it must be replaced, and whenever the diamond grinding head wear, the accuracy rate will follow the deterioration, personnel must follow the adjustment at any time during the production, so the yield of parts production, the general sapphire mirror as high as 90%, As for complex special-shaped cases such as MB&F, it is only 50%.The last step is the grinding and polishing of the parts, this step is also the most important, if you are not careful to wear the crack on the failure, usually there will be manual monitoring the processing process at any time to ensure that there will be no accidents.

Parameters:

Applications:

There are many methods for the growth of artificial sapphire crystal, and the current mainstream methods mainly include bubble growth method, heat exchange method, and lifting method. The crystal grown by the heat exchange method can reach 430 mm in diameter and weigh more than 150 kg, which is at the leading level in all sapphire growth methods, and sapphire crystals with a diameter of 500 mm are also being studied. In recent years, with the national attention to the promotion and application of LED lighting technology and the gradual deepening of people's awareness of this advanced environmental protection material, the rapid development of sapphire industry, large size, high-quality sapphire crystal research and production has gradually become one of the most dynamic new materials industry.

Related product:

FAQ:

Q: What is the Brand Name of the Sapphire Watchcases?

A: The Brand Name of the Sapphire Watchcases is ZMSH.

Q: What is the Certification of the Sapphire Watchcases​?

A: The Certification of the Sapphire Watchcases is ROHS.

Q: Where is the Place of Origin of the Sapphire Watchcases?

A: The Place of Origin of the Sapphire Watchcases is CHINA.

Q: What is the MOQ of the Sapphire Watchcases at one time?

A: The MOQ of the Sapphire Watchcases is 1pc at one time.