Application of brown fused alumina BFA in enhancing the wear resistance of coatings
The application of brown fused alumina BFA in enhancing the wear resistance of coatings is mainly reflected in the following aspects:
1. High hardness characteristics improve the wear resistance of coatings
Directly improve the hardness of materials
The Mohs hardness of brown fused alumina BFA reaches 9. Adding it to the coating can significantly enhance its surface hardness, form a stronger protective layer, and reduce the wear caused by friction and scratches.
Optimize microstructure
The brown fused alumina BFA particles are evenly distributed in the coating, and the coating structure is strengthened through physical interlocking, effectively resisting external mechanical impact and wear.
2. Chemical stability prolongs service life
Corrosion protection
The chemical inertness of brown fused alumina BFA makes it less susceptible to corrosion by corrosive media such as acids and alkalis. After coating, it can slow down the corrosive wear of the coating in scenes such as chemical equipment and marine environments.
High temperature stability
Under high temperature environment, brown fused alumina BFA can still maintain high hardness and structural stability, and is suitable for wear-resistant coatings under high temperature conditions such as furnaces and aviation components.
3. Improve the bonding performance between coating and substrate
Enhance adhesion
By adjusting the particle size and distribution of brown fused alumina BFA particles, the contact area between coating and substrate can be optimized, the bonding strength can be improved, and the coating can be prevented from falling off.
Surface roughness control
Brown fused alumina BFA particles can increase the surface roughness of the substrate during sandblasting pretreatment, further improving the adhesion and wear resistance of subsequent coatings.
4. Typical application areas
Industrial protective coatings
Anti-corrosion and wear-resistant coatings used for ships, bridges, and petrochemical equipment to resist mechanical wear and chemical corrosion.
Special functional coatings
In the aerospace field, it is used as a high-temperature and wear-resistant coating for aircraft parts; in automobile manufacturing, it is used for high-wear-resistant coatings for brake pads and engine parts.
Building material enhancement
Added to concrete and floor coatings, it improves the wear resistance and service life of scenes such as pavement and airport runways.
5. Economic benefits and environmental protection
Brown fused alumina BFA can be reused (such as sandblasting process), and the filled coating reduces long-term costs by reducing the maintenance frequency, combining resource conservation and environmental protection advantages.
Haixu Abrasives brown fused alumina BFA sizes:
FEPA:F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200
JIS:#12 #14 #16 #20 #22 #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
P: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