Application of Quartz Material in Industrial Heating Production

Jul 22, 2023

Quartz glass is a special glass containing only a single component of silicon dioxide. It is mainly connected by silicon atoms and oxygen atoms through silicon-oxygen bonds to form a corresponding amorphous structure. Because the bond energy of silicon-oxygen covalent bonds is large and the structure is tight, Therefore, quartz glass has unique properties, such as good hardness, penetrability and high melting point, especially the optical properties of transparent quartz glass are more excellent, it has excellent transmittance in the continuous wavelength range of ultraviolet to infrared radiation, and has high Spectral transmission, not damaged by radiation (other glass will darken after being irradiated by radiation). Therefore, in the use of infrared heaters, quartz glass also shows excellent characteristics. Quartz infrared heaters are widely used in industrial production such as coating and drying of lithium battery production, heating and molding of automotive interior and exterior trims, and heating and molding of refrigerator plastic parts. 

Compared with ordinary glass, the silica content is generally 70%-75%. The other components are alkali metals or alkaline earth metals such as sodium oxide and calcium oxide. The silica content of quartz glass is different. Quartz glass is made of pure silica , the content is above 99%, while the silica content of the quartz infrared heater reaches 99.99%.

Because of the particularity of the material, quartz glass is a good acid-resistant material. In addition to hydrofluoric acid and hot phosphoric acid above 300 degrees, it can withstand sulfuric acid, nitric acid, hydrochloric acid, aqua regia, neutral salts, carbon and sulfur at high temperatures. Its chemical stability is 30 times that of acid-resistant ceramics, and 150 times that of nickel-chromium alloys and ceramics.

 

Therefore, in the selection of quartz heaters, quartz glass with higher purity and better performance can significantly improve the heating efficiency, service life, and thermal response speed of the heater. As a Chinese manufacturer of quartz materials, it can Provide excellent quartz infrared heaters for various industrial heating industries.