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铬刚玉

  1. 详细信息

铬刚玉 

代号:BC-PFA
铬刚玉是以氧化铝粉为原料,适配氧化铬等,经高温熔炼而成。呈粉红色,硬度与白刚玉近似,韧性比白刚玉高。
用其制造的磨具,耐用度好,磨加工光洁度高。适用于量具、机床主轴、仪表零件、螺纹工件及样板磨等精密磨削

Chemical composition:(化学指标)



Chemical

Grit
size

Low chromium (低铬)
Code: PFA-LC

Medium chromium(中铬)
Code:PFA-MC

High chromium(高铬)
Code:PFA-HC

AL2O3(%)

Cr2O3(%)

NaO2(%)

AL2O3(%)

Cr2O3(%)

NaO2(%)

AL2O3(%)

Cr2O3(%)

NaO2(%)

F12-F80

≥98.50

 

0.2-0.45

≤0.5

≥98.20

 

>0.45-1.00

≤0.55

≥97.40

 

>1.00-2.00

≤0.55

F90-F150

≥98.50

≤0.55

≥98.20

≤0.60

≥97.00

≤0.60

F180-F220

≥98.00

≤0.60

≥97.80

≤0.70

≥96.50

≤0.70



Physical property (物理性能)

Basic minerals

Crystal size(u m)

True density(ɡ/cm?)

Bulk density(ɡ/cm?)

Hardness(㎏/mm?)

a-AL2O3

600-2000

≥3.90

1.40-1.95

2200-2300


可供粒度:Grit available:  Grit FEPA F12 – F220#.  Grit FEPA P12-220#.
粒度标准 Standard:FEAP- F (Bonded abrasives),  FEPA- P(Coated abrasives)

Other sizes are also available on request.