The polishing of glass discs- Trojan (Suzhou) material technology Co., Ltd.

The polishing of glass discs

23-02-2023

Glass
Glass is an amorphous inorganic non-metallic materials, generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw material, in addition to a small amount of auxiliary raw materials. Its main components are silicon dioxide and other oxides. The chemical composition of ordinary glass is Na2SiO3, CaSiO3, SiO2 or Na2O·CaO·6SiO2, etc. The main component is silicate double salt, which is an amorphous solid with irregular structure. Glass is widely used in construction, daily use, art, medical treatment, chemistry, electronics, instrumentation, nuclear engineering and other fields.

Grinding and polishing scheme

Grinding and polishing
Using the OPT-380 Automatic Precision Grinder&Polisher with customized fixtures, glass of various shapes can be ground and polished. The glass can be pasted on the block with paraffin, or clamped by suction. Glass has high hardness and is fragile, so it should be ground with a finer diamond grinding disc as much as possible during the initial grinding, and the pressure should be moderate during grinding. When polishing, you should use the YR polishing cloth with medium fleece for polishing. The general polishing liquid cannot polish the glass brightly without scratches, but the cerium oxide polishing liquid can polish the surface of the glass very well.

Trojan recommends the following grinding and polishing process for reference:

Step	1	2
Prepare the surface	Diamond Grinding Disc	YR polishing cloth
Grain number	P1500~P2000	2μmCerium Oxide Polishing Fluid
Cooling lubricant	Water	/
Single specimen load /N	20	proper pressure
Time/ s	120	20min
Speed of lower disc/rpm	60	80