Grinding Technology of Glass


Release time:

2024-01-31

Grinding of glass refers to the grinding of surface defects and remaining protrusions of glass products after forming, to achieve certain optical requirements and regular geometric shapes. It can be divided into two types: surface grinding and edge grinding. For example, when manufacturing mirror glass, under the pressure and rotational force of the grinding disc, the rough surface of the flat glass blank is continuously damaged and peeled off by the abrasive, ultimately becoming a flat and opaque surface.

Grinding Technology of Glass

Grinding of glass refers to the grinding of surface defects and remaining protrusions of glass products after forming, to achieve certain optical requirements and regular geometric shapes.
It can be divided into two types: surface grinding and edge grinding. For example, when manufacturing mirror glass, under the pressure and rotational force of the grinding disc, the rough surface of the flat glass blank is continuously damaged and peeled off by the abrasive, ultimately becoming a flat and opaque surface.
According to the grinding process, it can be divided into coarse grinding and fine grinding. Coarse grinding is the use of coarse abrasive to remove rough or residual parts of the glass surface, and grind them to the desired shape and size. But after rough grinding, the glass surface will leave concave and crack layers, which require fine grinding with abrasive to make the concave pits and crack layers finer.
The commonly used grinding materials include corundum, corundum, fused corundum, silicon carbide, boron carbide, and quartz sand. Among them, the grinding allowance for flat glass is small, the area is large, and the amount is large. Generally, inexpensive quartz sand is used. Optical glass and daily glass have a large grinding allowance, so corundum or natural corundum with high grinding efficiency is generally selected.
The main process factors affecting the glass mechanical grinding process include the properties and particle size of abrasives, the concentration and feeding amount of abrasive suspension, the speed and pressure of the grinding disc, the material of the grinding disc, and the hardness of the glass.