El óxido de aluminio marrón se funde eléctricamente en un horno de arco a partir de una mezcla de bauxita a alta temperatura. Tiene un color marrón, una gran dureza y una gran tenacidad. Las herramientas abrasivas hechas de óxido de aluminio marrón son adecuadas para moler acero al carbono, acero de aleación normal, fundición maleable y bronce duro. Se utiliza para la mezcla de revestimiento de óxido de aluminio refractario, el vertido de materiales moldeables, etc.
Grado de abrasivos:
| TAMAÑO | Al2O3 MÍNIMO | SIO2 MÁXIMO | TiO2 MÁXIMO | Fe2O3 MÁXIMO |
| 12#-80# | 94,5-97% | 0,6-0,8% | 1,5-3% | 0,12-0,2% |
| Entre 100 y 180 libras | 93,5% | 0,7-1% | 1,5-3,8% | 0,15-0,25 % |
| 240#-280# | 92% | 0,85-1,1% | 1,5-3,8% | 0,18-0,35% |
Aplicaciones típicas:
- Aplicaciones adheridas o recubiertas
- Acabado o preparación de superficies
- Recubrimiento o eliminación de incrustaciones
- pulido
- superficies antideslizantes
Adecuado para estos materiales:
- acero ferroso o de aleación normal
- cerámica
- plástico
- piedra
- vaso
- madera
- goma
- materiales compuestos
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