Why use sapphire for watch mirror

Synthetic sapphire is one of the hardest objects in all nature, with a Mohs hardness of 9. The hardness of synthetic sapphire is second only to diamond, and maintains its high strength at high temperatures. Synthetic sapphire crystals have good thermal properties, as well as excellent electrical and dielectric properties. In addition, synthetic sapphire combines almost complete resistance to acids and alkaline substances. Sapphires are used in watches because of their resistance, toughness and beautiful appearance.

Why choose sapphire crystal
Synthetic sapphire crystal or "glass" is actually not glass at all. It is a very hard, transparent material made of pure alumina that crystallizes at very high temperatures. sapphire watch glass,Synthetic sapphire has the same hardness as natural sapphire gemstones, but there is no colorant that imparts various tones to the gemstone. When it is heated, the synthetic sapphire is formed into round blocks, which are then cut into pieces with a diamond-coated saw. These discs are then ground and polished into watch crystals. Sapphire (whether natural or synthetic) is one of the hardest substances on earth. Table mirrors made of synthetic sapphire are usually advertised as "scratch-resistant" or "almost scratch-resistant" because they are generally unlikely to be scratched by external forces unless they are deliberately scratched with sharp objects

The sapphire crystal can be glued to most watch cases, or it can be pressed into most plastic glass gaskets. Each sapphire crystal has a slightly polished beveled edge, once installed, the crystal will show a beautiful finished appearance.

Comments

Post a Comment

Popular posts from this blog

Is there a difference between a CNC lathe and a CNC milling machine?

1. The working principle is different. The CNC lathe is the rotation of the workpiece, and the CNC milling machine is the rotation of the tool. Lathe refers to a machine tool that mainly uses a turning tool to turn a rotating workpiece. Generally, the turning tool is fixed at a certain position on the machine tool, and the workpiece rotates along the axis under the clamping of the fixture, and is cut when it is close to the knife edge, so it is mainly suitable for processing shafts, discs, sleeves and other workpieces with rotating surfaces. cnc turning service . It is the most widely used type of machine tool in machinery manufacturing and repair factories. Rotating machines such as milling machines and drilling machines are all derived from lathes. 2. Different programming methods. Determined by the working mode, the programming of the CNC lathe only needs to input two coordinates, the milling machine needs to input 3 coordinates, the lathe xy2 axis, most of the circular shaf
Read more

What is the difference between inkjet and laser printers

The first is the issue of paper compatibility. Generally, inkjet printers can be compatible with many types of paper, including but not limited to: printing paper, envelopes, photo paper, CD cover paper, etc. You can use anything you want, even high-end ones. All of them can be printed directly on some physical objects. However, because the consumables of laser printers are mainly toner, they are basically only suitable for ordinary paper, because if you change to special paper (photo) with low surface friction and adhesion, the toner may not hang, and it may fall off. Relatively narrow. The second is the issue of clarity. Inkjet printers are much stronger than laser printers. The printing resolution of the laser printer is too low, and the printed pattern has very serious dot matrix features (similar to the dot matrix with low-end tempered film attached to the mobile phone). blue film inkjet printer If you look closely, you can see each pixel; here Inkjet printers are very advanta
Read more

About the display

  Fluid crystal material (LCD), a type of exhibit employed in computerized products and mobile pcs. Arranged, each bead cannot catch them. Therefore, the crystals are like leaf blinds, which can diffuse and block the shot. lcd display manufacturers , specializing in the development and production of LCD monitors. High-quality products, low power consumption, fast delivery, and reasonable price. Liquefied Crystal Display (LCD) At present, medical and engineering information products are establishing towards the objective of becoming light, thin, simple and small. Obviously, display products using a extended record in pc peripheral units are no numerous. With ease of having and dealing with as being the precondition, classic exhibit approaches for example CRT video clip tubing displays and Brought exhibit solar panels are at the mercy of variables such as excessive volume or big energy usage, and cannot meet the true demands of users. The development of liquid crystal display technology
Read more