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black corundum complete particle size natural abrasive road indurate carburet carborundum
Product name: black carborundum
Specification: 200#
Silicon carbide is divided into black silicon carbide and green silicon carbide. Among them, black silicon carbide is made of quartz sand, petroleum coke and high quality silica as the main raw materials, which is smelted by resistance furnace at high temperature. Its hardness is between corundum and diamond, and its mechanical strength is higher than corundum. Green silicon carbide is made from petroleum coke and high-quality silica as the main raw materials, adding salt as an additive, and smelted by resistance furnace at high temperature. Its hardness is between corundum and diamond, and its mechanical strength is higher than corundum. Commonly used silicon carbide abrasives have two different crystals, one is green silicon carbide, containing more than 97 % of SiC, mainly used for grinding hard gold-containing tools. The other is black silicon carbide with metallic luster, containing more than 95 % SiC, which is stronger than green silicon carbide, but has lower hardness. It is mainly used for grinding cast iron and non-metallic materials.
PHYSICAL PROPERTIES(TYPICAL)
|
Particle size |
chemical composition(%) | ||
| SIC | F.C | Fe2O3 | |
| 12#-90# | ≥ 98.5 | ≤ 0.20 | ≤ 0.60 |
| 100#-180# | ≥ 98 | ≤ 0.30 | ≤ 0.80 |
| 220#-320# | ≥ 97 | ≤ 0.30 | ≤ 1.20 |
particle-size reconciliation:
| Particle size | μm | Particle size | μm |
| 16 | 800 | 360 | 40 |
| 24 | 700 | 400 | 38 |
| 36 | 420 | 500 | 28 |
| 46 | 320 | 600 | 23 |
| 60 | 250 | 800 | 18 |
| 80 | 180 | 1000 | 13 |
| 100 | 150 | 1200 | 10 |
| 120 | 120 | 1500 | 8 |
| 150 | 106 | 2000 | 6.5 |
| 180 | 80 | 2500 | 5 |
| 200 | 75 | 3000 | 4.5 |
| 220 | 65 | 4000 | 3 |
| 240 | 60 | 6000 | 2 |
| 280 | 50 | 8000 | 1.5 |
| 320 | 45 | 10000 | 1 |