Description du corindon de chrome
Le corindon de chrome est de l’alumine Bayer, qui est fondue électriquement à haute température, ajoutée avec la bonne quantité de chrome oxydé. Il est rose. Sa dureté est proche, mais sa ténacité est supérieure à celle de WA.
Composition chimique du corindon de chrome
| spécification | 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 | ≤0,50 | ≥98,20 | ≤0,60 | ≥97,00 | ≤0,60 | |||
| F180-F220 | ≥98,50 | ≤0,50 | ≥98,80 | ≤0,70 | ≥96,50 | ≤0,70 | |||
Propriété physique du corindon de chrome :
| Minéraux de base | Taille du cristal µm | Véritable densité g/cm3 | Densité apparente g/cm3 | Dureté des nœuds kg/mm2 |
| α-Al2O3 | 600-2000 | ≥3,90 | 1.40-1.91 | 22h00-23h00 |
Application:
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.
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