Abrasifs en corindon de chrome rose
Le corindon de chrome rose est fondu électriquement à haute température, étant ajouté avec la bonne quantité de chrome oxydé. C’est rose. Sa dureté est proche, mais sa ténacité est supérieure à celle du WA. Les outils abrasifs qui en sont fabriqués présentent une excellente durabilité et une propreté de traitement élevée, qui conviennent au meulage de précision des outils de mesure, des arbres principaux de tour, des instruments et des pièces d’appareils, des pièces de filetage et des échantillonneurs, etc.
Composition chimique
plage de granulométrie | Faible teneur en chrome | Chrome moyen | Haute teneur en chrome | ||||||
Al2O3 | Cr2O3 | Na2O | Al2O3 | Cr2O3 | Na2O | Al2O3 | Cr2O3 | Na2O | |
F12-F80 | ≥98,50 | 0,20-0,45 | ≤0,50 | ≥98,20 | >0,45-1,00 | ≤0,55 | ≥97,40 | >1h00-2h00 | ≤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 | |||
Propriété physique
Minéraux de base | Taille des cristaux | Densité réelle | Densité apparente | Dureté du bouton |
α-AL2O3 | 600-2000 | ≥3,90 | 1h40-1h95 | 22h00-23h00 |
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