Application of Quartz in Enamel
Quartz block, also known as silica, is mainly the raw material for the production of quartz sand (also known as silica sand), as well as the raw material for quartz refractories and sintering ferrosilicon. It is usually used in glass, casting, ceramics, metallurgy, construction, chemicals, plastics, rubber and other industries. Quartz is also one of the raw materials of enamel frit, and is sometimes added as a grinding additive. As a supplier of enamel frit, today Xiaonuo will tell you how quartz affects the performance of enamel frit and how it works. of?
Quartz (SiO2), white powder in appearance, insoluble in water, plays the role of refractory (refractory raw material) in enamel frit, can increase the firing range in enamel frit slurry, prevent over-burning of enamel products, add in enamel frit In the ground coat, the ground coat layer remains intact after multiple firings. Quartz can also expand breathability, prevent enamel cracks and fish scales from bursting.
Quartz powder is one of the raw materials of silica sand. The raw material of silica sand is the most important chemical component in enamel frit, accounting for about 40-50% of the total amount, mainly from silica sand, flint or quartz powder. Fe2O3, CaO, MgO and alkali metals, etc. In addition, silica can also be obtained from feldspar, clay, etc., and the content of white frit and Fe2O3 needs to be below 0.5%.The quality requirements of quartz sand as the main raw material: SiO2≥98%, Fe2O3≤0.1%, loss on ignition <0.5%, moisture≤10%, 20 mesh≤particle size≤40 mesh