Brown corundum, a seemingly unfamiliar material, plays a crucial role in the industrial field and is undoubtedly a "versatile". It is made from alumina, carbon materials, and iron filings as raw materials, melted at high temperatures in an electric arc furnace. Its unique manufacturing process endows it with numerous excellent properties and makes it widely used.
|
规格 Specification |
F系列/FSERIES F20-F180 |
|||||||
|
成分 Component |
Al₂O₃ |
SiO₂ |
Fe₂O₃ |
TiO₂ |
Ca0 |
单颗粒抗压强度 Single Particle Compressve Strength |
典型值46# Typical Value 46# |
堆积密度 Bulk Density |
|
含量 Content |
95.3-96% |
<0.9% |
<0.15% |
2.3-2.8% |
<0.30% |
6.75kg |
46.5%±0.5 |
1.72-2.05g/cm³ |
|
Application |
Size |
Main Chemical Index % |
Magnetic Materials % |
||||
|
Al2O3 |
Fe2O3 |
SiO2 |
TiO2 |
||||
|
Abrasives/ Sandblast |
F |
4#-80# |
≥95.3 |
≤0.3 |
≤1.0 |
≤2.8 |
≤0.04 |
|
90#-220# |
≥95.0 |
≤0.02 |
|||||
|
P |
8#-80# |
≥95.3 |
≤0.2 |
≤1.2 |
≤2.8 |
≤0.04 |
|
|
100#-220# |
≥94.5 |
≤0.02 |
|||||
|
Refractory |
Section sand |
0-1mm 1-3mm 3-5mm 5-8mm 8-12mm |
≥95.3 |
≤0.3 |
≤1.0 |
≤2.8 |
- |
|
25-0mm 10-0mm 50-0mm 30-0mm |
≥95.5 |
≤0.3 |
≤1.0 |
≤2.8 |
- |
||
|
BFA Crude for Abrasive |
Fine powder |
180#-0 200#-0 320#-0 |
≥94.0 |
≤0.4 |
≤1.0 |
≤3.0 |
- |
In the abrasive and grinding tool industry, brown corundum is the absolute "protagonist". It has high hardness and good wear resistance. The grinding wheels, sandpapers and other grinding tools made of it can efficiently grind various metal and non-metal materials. In the machining workshop, brown corundum grinding wheels can easily polish steel parts, remove surface defects, make the surface of the parts smooth and flat, and meet high-precision machining requirements. In glass manufacturing factories, grinding and polishing glass with abrasives made of brown corundum can make the glass crystal clear. Whether it is ordinary flat glass or optical glass with extremely high requirements for smoothness, brown corundum can perform tasks excellently.
The field of refractory materials also cannot do without brown corundum. It has the characteristics of high temperature resistance and corrosion resistance, making it an ideal raw material for manufacturing refractory bricks and castables. In high-temperature equipment such as blast furnaces in steel plants and rotary kilns in cement plants, refractory materials made of brown corundum are like a strong "armor", resisting temperatures of thousands of degrees and the erosion of various chemicals, protecting the safe operation of equipment, greatly extending its service life, and reducing production costs for enterprises.
Brown corundum is also a commonly used abrasive in sandblasting treatment. In the metal surface treatment workshop, sandblasting with brown corundum can remove rust and oxide scale on the metal surface, giving the metal surface a uniform rough surface, laying a good foundation for subsequent painting, electroplating and other processes, enhancing the adhesion of the coating, and making metal products more beautiful and durable. For example, the steel structural components of bridges can be effectively extended in service life by sandblasting with brown corundum and then applying anti-corrosion coating.
In addition, brown corundum is widely used in fields such as ceramics and chemical engineering. In ceramic production, adding brown corundum can improve the hardness and wear resistance of ceramics, producing high-performance ceramic cutting tools, ceramic bearings, and other products. In the chemical industry, brown corundum can be used to manufacture corrosion-resistant reaction vessels, pipelines, and other equipment, which can work stably in harsh chemical environments such as strong acids and alkalis.
Brown corundum plays an important role in various corners of industry due to its excellent performance, providing strong support for the development of modern industry. With the continuous advancement of technology, the use of brown corundum will continue to expand, creating more value.
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