Blue Fired Aluminum Oxide Abrasive Grain For Cutting Wheels

Blue fired aluminum oxide abrasive grain for cutting wheels

Blue fired brown aluminum oxide is calcined at a temperature of about 1350℃ after the normal production process of brown fused aluminum oxide. It is also called high-temperature calcined brown fused alumina(Compared with medium-temperature calcined brown fused alumina at 1050℃). The impurities existing in the grains will be separated out & vaporized. The calcining treatment eliminates the cracks of brown fused alumina grain outside and inside. The surface of each particle changes coarser, improving the hydrophilicity and self-sharpening greatly. So the abrasive grains will easily get bonded with the resin bonder. Thus it can improve cutting wheel performance which adopts this abrasive material.

Blue fired aluminum oxide abrasive grain for cutting wheels Features:

1. Small expansion coefficient so it can prevent grain expansion and cracks of vitrified bonded abrasive wheels.
2. Excellent hydrophilicity. So it can get abrasive grain bond tighter and improve abrasive wheel's lifetime.
3. High toughness, and high strength. That feature enhance the cutting wheel performance.
4. Avoiding burning for bonded abrasive tools without grain crack and rust spots.
5. High density and higher self-sharpening then brown fused alumina.
6. Improve performance of abrasive tools, especially suitable for the production of high-grade consolidated abrasive tools.

Blue fired aluminum oxide abrasive grain for cutting wheels Physical and Chemical Composition

Applications

Bonded abrasive tool (F-grit)

Coated abrasive tool (P-grit)

Vitrified abrasive tool

Reusable abrasive

Grinding,lapping & polishing medium

Heavy load grinding wheels

Typical Size for F-grit (Barnac milling) and P-grit(Barnac)