Micro silica powder, silica micro powder, can you distinguish clearly?
Micro silica powder, silica powder, can you distinguish clearly?
Micro-silica powder: Is also called silica fume oragglomerated silica fume. generally collected by soot, containing a certain amount of silica dust.
Silica-micro powder: Is also called silica powder ( flour ) in the industry, ultra-fine powder obtained by grinding quartz ore with corresponding purity or fine powder of silica (such as white carbon black) obtained by chemical is called silica powder.
Savoring, these words are still concisely described, the difference between the above four. Especially why natural quartz stone is called quartz powder in Heyuan,Guangdong Province, and it is called silica powder in Donghai , Jiangsu Province
"In the industry, people will have ultra-fine powder obtained by grinding quartz mineral with corresponding purity." This expression is considered to be more accurate, and it also shows the depth of understanding of the industry by the definer. Because Jiangsu Donghai is mainly processed with high-purity silicapowder
Silica powder and Silica fume , many people seem at first glance with nothing different, but if you take a closer look, it seems that have difference. So, what kind of material are they? What is the difference between them?
Silica powder: The main component is SiO2, containing more than 99% silicon, and the powder has a large particle size of 200 mesh, 600 mesh, 800 mesh, and the like
Silica fume : The main component is also SiO2, but the silicon content is between 80-92%, the fineness is less than 1μm, and the average particle size is from 0.1μm to 0.3μm.
Silica powder: processed by natural quartz or fused silica through multiple processes such as crushing, grinding, flotation, pickling and purification.
Silicar fume : A large amount of highly volatile SiO2 and Si gas is produced in the hot-melt furnace of ferrosilicon and industrial silicon smelting, and is rapidly oxidized and condensed and precipitated with air.
The main application
Silica powder: It can be used in the manufacturing of ceramics, silicone rubber, paints, etc. Also can be used for insulation casting of common electrical components, plastic packaging materials for electronic components, etc.
Silica fume: It can be used as a blending material in the concrete industry to improve the cohesiveness and bleeding of concrete; adding silica fume to cement can reduce particle friction and improve the processability of cement; The preparation of refractory materials improves performance and durability.