WHAT IS THE REASON FOR THE LONG POLISHING TIME OF SAPPHIRE WINDOW?

https://www.cryscore.com/products/sapphire-windows/

What is the reason for the long polishing time of the sapphire window? Let's have a look.

The window piece is mainly used for mobile phones. Many manufacturers will be very careful in the production process, especially in the polishing process. After all, it is the last process completed. If it is not operated properly, it will cause great loss and affect the corporate image. The grinding stage of the sapphire window can be roughly divided into three stages: rough grinding, fine grinding, and polishing. Rough grinding is to make it uniform, and fine grinding is to flatten it. The last one is what we call the completion stage: polishing to make it mirror-like. From these processes, we can know that the polishing process of the sapphire window piece is actually the process of corrosion and sweeping, and finally, reach the ideal state. The thickness of corrosion can be accurate to the Ångstrom level. As far as CRYSCORE knows, polishing is to make all parts of the sapphire window (lens) mirror-like.