Black silicon carbide micropowder P series
Black silicon carbide micropowder P series is a high-performance material specially used in the field of coated abrasives. Its preparation process, performance characteristics and application fields are as follows:
1. Preparation process
Raw materials and smelting
Quartz sand and petroleum coke are used as raw materials, and silicon carbide blocks are generated by high-temperature melting and smelting, and then crushed, screened and shaped to form basic particles.
Fine treatment
The particles need to be ground, pickled, washed, overflowed, graded, dried, screened and loosened to remove impurities and optimize the particle size distribution, and finally form P series abrasives.
2. Performance characteristics
High hardness and wear resistance
The Mohs hardness of black silicon carbide reaches 9.15, second only to diamond and boron carbide. Its ultrafine powder (such as P5000) can significantly improve the mechanical strength of composite materials.
Excellent thermal conductivity and dielectric properties
Adding P series micropowders to composite materials such as aerogel can optimize thermal conductivity and enhance dielectric adjustability. Particle characteristics
P series particles are sharper and more adhesive than F sand, and are suitable for close bonding of coated abrasive substrates (such as cloth and paper).
3. Application fields
Coated abrasives
Widely used in products such as sandpaper and abrasive belts, especially in stone polishing, metal surface treatment and other fields.
Composite reinforcement
Adding aerogel composites as functional fillers improves their wear resistance and thermal stability.
Precision grinding and polishing
Ultrafine models (such as P4000 and P5000) are used in polishing processes in the fields of precision ceramics, electronic components, etc.
4. Product specifications and parameters
Purity: SiC content ≥98%
Bulk density: about 3.2g/cm3
Specific particle size and corresponding median D50:
| Size | D50(um) | Size | D50(um) |
| P240 | 58.5±2.0 | P800 | 21.8±1.0 |
| P280 | 52.2±2.0 | P1000 | 18.3±1.0 |
| P320 | 46.2±1.5 | P1200 | 15.3±1.0 |
| P360 | 40.5±1.5 | P1500 | 12.6±1.0 |
| P400 | 35.0±1.5 | P2000 | 10.3±0.8 |
| P500 | 30.2±1.5 | P2500 | 8.4±0.5 |
| P600 | 25.8±1.0 | P3000 | 6.7±0.5 |
Through the above characteristics, the black silicon carbide micropowder P series shows significant advantages in high-precision grinding, composite material modification and special industrial fields.
Haixu Abrasives Black Silicon Carbide sizes are as follows:
FEPA F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F150 F180 F220 F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000F1200
JIS #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 #240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000 #4000
P12 P16 P20 P24 P30 P36 P40 P50 P60 P80 P100 P120 P150 P180 P220 P240 P280 P320 P360 P400 P500 P600 P800 P1000 P1200 P1500 P2000 P2500 P3000 P4000 P5000