The difference between silicon powder and quartz powder is confused by many manufacturers and users, mainly because there is no accurate boundary in this field:

Quartz powder and silica powder refer to crystalline sio2 powder, which only means breaking the stone into powder. Quartz powder is relatively coarse, below 325 mesh, while silicon fine powder is relatively fine, above 325 mesh. Due to the impurities contained, the whiteness, whiteness and hue will vary, and the purity exceeds 99%.

Micro-silica fume is a by-product of industry, it is a mixture of sio2 and si, we also call it silica fume. It's basically black. The particle size is relatively small, and sio2 is also amorphous.

According to these essential differences, the uses of these products are also different. Quartz powder and micro silicon powder, the thickness of silicon powder is mainly different.

Silicon powderDefinition and historical origin

After collecting dust in the chimney of a steel plant, silica powder was previously defined as fine powder. In the early 1990s, the domestic refractory industry mainly used Norwegian silica fume, which was actually the dust collected in the chimneys of iron and steel enterprises, and its fineness was sub-micron. At that time, the product could not be used in China. Later, after domestic steel companies discovered this problem, the prices of foreign products continued to fall. It was called silica fume at that time.

In the late 1990s, with China's reform and opening up and the development of the private economy, domestic electronic circuit boards also developed rapidly. Lianyungang Donghai, Dongguan, Guangdong, Foshan and other places have seen business opportunities for ultra-fine purified quartz powder. This type of product has no name and cannot be called quartz powder or ultrafine quartz powder. Their content and technical content seem to be too low, so they are simply referred to as fine silicon powder.

This title has gradually formed a trend, and there are more and more reasons to become a company. So far, it has occupied the title of plateau. Capture the original definition and connotation of silica powder. The original microsilica powder is not strong enough, so it must be renamed to microsilica powder. In short, silicon micropowder is actually the product of predation by ultrafine quartz powder.