Pink Fused Alumina powder or Ruby Alumina powder is made by aluminium oxide powder, which is electrically fused at high-temperature adding appropriate amount of chromium oxide, etc. It is pink or ruby. Its hardness is similar to White Aluminium Oxide, but its toughness is higher than that of WFA.
The abrasive tools made by PA or RA have good durability and the workpieces have high smooth finish. It is suitable for precision grinding of the measuring tools, machine tool main spindle, instrument parts, thread workpieces and sample plate,etc.
Application:
For Resin Bonded and Vitrified Abrasives: Grinding Wheels, etc.
Wet and Dry Blasting Media.
Precision Grinding.
Specification:
Non- breakable.
Good crystallinity, pure color, less impurity.
Well-distributed particle size composition.
Low magnetic substance content.
High bulk density, and high toughness.
Chemical composition (% by weight)
Composition | Low chromium | Medium chromium | High chromium | ||||||
Grit sizes | Al2O3 | Cr2O3 | Na2O | Al2O3 | Cr2O3 | Na2O | AI2O3 | Cr2O3 | Na2O |
F8-F80 | ≥98.5 | 0.2-0.4 | ≤0.50 | ≥98.2 | 0.4-1.0 | ≤0.55 | ≥97.4 | 1.0-2.0 | ≤0.55 |
F90-F150 | ≥98.5 | ≤0.55 | ≥98.2 | ≤0.60 | ≥97.0 | ≤0.60 | |||
F180-F240 | ≥98.0 | ≤0.60 | ≥97.8 | ≤0.70 | ≥96.5 | ≤0.70 |
Package:
25kgs/bag or 50kgs/bag, 1000kgs/pallet or ton bag, or as customized.
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Annie Tian
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