電熔氧化鋁（白剛玉）微粉
白剛玉以氧化鋁為原料經高溫電熔冶煉而成，顏色呈白色，硬度略高於棕剛玉，韌性稍低，用其製成的磨具適用於磨削高碳鋼、高速鋼及不銹鋼、細細微性磨料還可用於精密鑄造及高級耐火材料等。
Symbol | Range of the grain | Chemical composition (%) | True density | Shape of grain | |
Al2O3 | Na2O | ||||
WA | F12-80 | ≥99.70 | ≦0.2 | ≥3.90 |
Equaled Volume |
F90-150 | ≥99.70 | ≦0.2 | |||
F180-220 | ≥99.50 | ≦0.2 | |||
F230-400 | ≥99.50 | ≦0.25 | |||
F500-1200 | ≥99.0 | ≦0.25 | |||
China GB | JIS R6001-1998 | ANSI B74.12-1992 | FEPA 42GB-1984 DIN 69101-1985 | |||||||||
GB/T2481.2-1998 | GB/T9258.1-2000 | Grit | d50(µ m) | Grit | d50(µ m) | Grit | d50(µ m) | |||||
Grit | d50 (µ m) | Grit | d50 (µ m) | Sedimentation tube menthod | Electric resisance method | Sedimentation tube menthod | Standard Werte der Mlkro-Frelhe | Sedigraph 5000D | ||||
P240 | 58.5±2.0 | 240 | 60.0±4.0 | 57.0±3.0 | ||||||||
P280 | 52.2±2.0 | 280 | 52.0±3.0 | 48.0±3.0 | ||||||||
F230 | 53.0±3.0 | P320 | 46.2±1.5 | 320 | 46.0±2.5 | 40.0±2.5 | 240 | 53.5-50 | F230 | 53.0±3.0 | 50.0±3.0 | |
F240 | 44.5±2.0 | P360 | 40.5±1.5 | 360 | 40.0±2.0 | 35.0±2.0 | F240 | 44.5±2.0 | 42.0±2.0 | |||
P400 | 35.0±1.5 | 400 | 34.0±2.0 | 30.0±2.0 | 280 | 44-40.5 | ||||||
F280 | 36.5±1.5 | P500 | 30.2±1.5 | 500 | 28.0±2.0 | 25.0±2.0 | 320 | 36-32.5 | F280 | 36.5±1.5 | 34.5±1.5 | |
F320 | 29.2±1.5 | P600 | 25.8±1.0 | 600 | 24.0±1.5 | 20.0±1.5 | 360 | 28.8-25.8 | F320 | 29.2±1.5 | 27.7±1.5 | |
F360 | 22.8±1.5 | P800 | 21.8±1.0 | 700 | 21.0±1.3 | 17.0±1.3 | 400 | 23.6-20.6 | F360 | 22.8±1.5 | 21.6±1.5 | |
F400 | 17.3±1.0 | P1000 | 18.3±1.0 | 800 | 18.0±1.0 | 14.0±1.0 | 500 | 19.7-16.7 | F400 | 17.3±1.0 | 16.5±1.0 | |
F500 | 12.8±1.0 | P1200 | 15.3±1.0 | 1000 | 15.5±1.0 | 11.5±1.0 | 600 | 16-13 | F500 | 12.8±1.0 | 12.3±1.0 | |
P1500 | 12.6±1.0 | 1200 | 13.0±1.0 | 9.5±0.8 | ||||||||
F600 | 9.3±1.0 | P2000 | 10.3±0.8 | 1500 | 10.5±1.0 | 8.0±0.6 | 800 | 12.3-9.8 | F600 | 9.3±1.0 | 9.0±1.0 | |
P2500 | 8.4±0.5 | 2000 | 8.5±0.7 | 6.7±0.6 | 1000 | 9.3-6.8 | ||||||
F800 | 6.5±1.0 | 2500 | 7.0±0.7 | 5.5±0.5 | F800 | 6.5±1.0 | 6.3±1.0 | |||||
F1000 | 4.5±0.8 | 3000 | 5.7±0.5 | 4.0±0.5 | 1200 | 6.5-4.5 | F1000 | 4.5±0.8 | 4.5±0.8 | |||
F1200 | 3.0±0.5 | 4000 | 3.0±0.4 | F1200 | 3.0±0.5 | 3.1±0.5 | ||||||
6000 | 2.0±0.4 | |||||||||||
8000 | 1.2±0.3 | |||||||||||
電熔白剛玉
FEPA
型號標準
F4,F5,F6,F7,F8,F10,F12,F14,F16,F20,F22,F24,F30,F36,F40,F46,F54,F60,F70,F80,F100,F120,F150,F180,F220
F240,F280,F320,F360,F400,F500,F600,F800,F1000,F1200
P grade
JIS
型號標準
#4,#5,#6,#7,#8,#10,#12,#14,#16,#20,#22,#24,#30,#36,#40,#46,#54,#60,#70,#80,#100,#120,#150,#180,#220
#240,#280,#320,#360,#400,#500,#600,#800,#1000,#2000,#3000,#4000,#6000,#8000
25公斤小袋加噸袋
25公斤小袋加木託盤
