| Résumé : |
The best option for grinding media to obtain toughness and durability, which in turn extends bead life.
The advantages if using the highest specification grinding media in milling operations are well documented and understood. Higher density provides the potential to increase productivity, often significantly over other traditional ceramic and glass materials. Improved toughness and durability result in extended bead lifetimes and machine maintenance periods. Generally accepted as the best option is Yttria stabilised Zirconia. This material is an engineering grade ceramic, with controlled stabilisation of the zirconia phase and fine crystal grain size. The resulting beads have increased strength, fracture toughness and wear resistance.
The material tends to be favoured over other high-density forms ; particularly due to its compatibility with all machine types, reduced abrasion of mill parts and above all, its consistency of performance. The material has found particular application in demanding and high specification operations, where precision, control and contamination are of primary imporatance. It has not however, been generally adopted as an industrial standard. The main reason for this has been the high purchase price and the subsequent prohibitive cost of filling production machines. |
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Ajouter le résultat dans votre panier Affiner la rechercheHigh performance microgrinding / Saint Gobain in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4523 (04/2008)
