yixing haiyu refractory co.,ltd
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White corundum manufacturers Polishing using white corundum sand-blasting
Product name: grained sand of white fused alumina
specification: 30#
Introduction of white corundum
Definition : A kind of artificial abrasive. Aluminum oxide ( Al2O3 ) content of more than 99 %, and contains a small amount of iron oxide, silicon oxide and other components, white.
Product granularity is produced according to international standards and national standards, and can be processed according to user requirements. The general particle size number is F4 ~ F220, and its chemical composition varies with particle size. The outstanding feature is that the crystal size is small and resistant to impact. If broken by self-grinding machine, the particles are mostly spherical particles, the surface is dry and clean, and it is easy to combine with binder.
MAIN APPLICATIONS
-Metal sandblasting cleaning and surface treatment
-Manufacture various abrasive products
-Ceramic products
-Surface treatment of glass and non-metallic materials
-Semi-conductor industry
-Hard alloy and ultra-hard abrasive tool industry
-Polishing wax, polishing fluid, polishing paste, etc.
-Button, mobile phone shell, wipe silver rod polishing grinding fluid, grinding agent and other grinding medium.
AVERAGE CHEMICAL COMPOSITION(TYPICAL)
| Al2O3 | Fe2O3 | Na2O | MgO | K2O | CaO | SiO2 |
| 99.50% | ≤0.05% | ≤0.26% | ≤0.01% | ≤0.02% | ≤0.04% | ≤0.1% |
PHYSICAL PROPERTIES(TYPICAL)
| Mohs hardness | Proportion | Banked density | PH value | Refractoriness |
| 9.0 | ≥3.90g/cm3 | 1.53-1.99g/cm3 | 7.0 | 2100℃ |
Particle size comparison sheet of white fused alumina
| Particle size number | (μm) Particle diameter range(μm) | Particle size number | (μm) Particle diameter range(μm) |
| 10# | 2000 | 60# | 300-250 |
| 12# | 2000-1700 | 70# | 250-212 |
| 20# | 1400-1180 | 80# | 212-180 |
| 22# | 1180-1000 | 90# | 180-150 |
| 24# | 1000-850 | 100# | 150-125 |
| 30# | 850-710 | 120# | 125-106 |
| 36# | 600-500 | 150# | 106-75 |
| 40# | 500-425 | 180# | 90-63 |
| 46# | 425-355 | 220# | 75-53 |
| 54# | 355-300 | ||
Product packaging