欧美激情亚洲另类_大伊人青草狠狠久久_国产AV丝袜美腿丝袜_国产成人综综合视频_一级黄片无码观看_午夜福利av影院_日韓在線視頻不卡_国产A v不卡无码_亚洲无码一区二区三区在线观看_福利视频 中文字幕

With the continuous development of science and technology in our country, some of its technologies have also been continuously strengthened.  For example, the selection technology of some quartz powder and other materials is also continuously improving.  Generally its quartz powder is widely used in the industrial industry.  Then the quartz powder used in its industry can be divided into several categories.  The following is a brief introduction by the fused quartz powder manufacturer.

Generally speaking, the quartz powder used in its industry can be divided into common quartz powder, high purity quartz powder, refined quartz powder, fused quartz powder and silica micropowder, and each of them has its own characteristics.

The composition content of various quartz powders is also different.  Generally, the SiO _ 2 of its ordinary quartz powder is more than or equal to 90-99% Fe2O3 is less than or equal to 0.06-0.02%;  Its high purity quartz powder contains SiO 2 ≥ 99.5-99.9% Fe2O3 ≤ 0.005%;  Its refined quartz powder is also called pickling quartz sand, and its component content SiO2≥99-99.5% Fe2O3≤0.02-0.015%.

For their respective uses, ordinary quartz powder can be used in metallurgy, silicon carbide, building materials, enamel, cast steel, filter material, sodium silicate, chemical industry, sand blasting and other industries.  Its high-purity quartz powder can be used in high-grade glass, electronic filler, smelting stone, precision casting, chemical industry, ceramics and other industries.  Refined quartz powder can be used for making filter materials, high-grade glass, glass products, refractory materials, smelting stones, precision casting, sand blasting, wheel grinding materials, etc.

These are the major categories of quartz powder used by its industry.