To explore the processing process of sapphire mirror

Explaining sapphire mirror machining process is now used by watch the sapphire mirror, removal of impurities such as iron oxide and titanium oxide 3 oxidation 2 aluminium, synthetic and natural sapphire crystal not big difference. 3 oxidation 2 aluminium made the original pure alumina on the condition of high temperature synthetic sapphire, through multi-channel processes, and finally be diamond tools cutting into wafer, and then polished, become a watch mirror.Because of the high cost of processing tools, and consumption, so the cost of making sapphire table mirror is relatively high.The synthetic sapphire technology was invented in the 19th century and has been used in watches since the 1960s. Now the top watch brands generally use sapphire as the mirror of watches.The synthetic sapphire processing procedure is as follows:

1 the first raw materials will be at 1200℃ under the high temperature decomposition of clean crystal ingredients.

2 after the decomposition of a barrel of pure white flawless crystal raw materials.

3. Continue to burn the required crystal bars after 2050℃.

4. Whole strip of uncut crystal.

After firing the crystal bars must be manually screened again, and through the screened crystal bars, each piece is clean and flawless.

Crystal glass to be finished after diamond cut crystal strip.

7 After cutting, the surface will be ground with a grinder at low speed. This work must be done more than 4 times to achieve a bright and transparent mirror effect.

8. Finally, it is sent to the clean room and then treated with optical treatment. Special optical media is plated on both sides of the mirror at 280℃.

Both natural and synthetic sapphires have a hardness of 9 degrees -- nothing in nature is harder than a diamond.Notice, this is not in nature, not on earth.Some synthetic silicone compounds can also be grade 9 hard and scratch sapphires.Many construction and decoration materials also use silicon carbon compounds, such as artificial stone, so in these places if there is friction is likely to leave scratches on the sapphire table mirror.