کروم کروندوم توضیحات
کروم کوراندوم آلومینا بایر است که به صورت الکتریکی در دمای بالا ذوب می شود و با مقدار مناسبی از کروم اکسید شده به آن اضافه می شود. صورتی است. سختی نزدیک به آن است، اما چقرمگی بالاتر از آن یا WA است.
ترکیب شیمیایی کروم کوراندوم
| مشخصات | کروم کم | کروم متوسط | کروم بالا | ||||||
| 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 | 1.00-2.00 | ≤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 | |||
ویژگی فیزیکی کروم کوراندوم:
| مواد معدنی اساسی | اندازه کریستال میکرومتر | چگالی واقعی g/cm3 | چگالی ظاهری g/cm3 | سختی گره کیلوگرم بر میلی متر مربع |
| α-Al2O3 | 600-2000 | ≥3.90 | 1.40-1.91 | 2200-2300 |
کاربرد:
ابزارهای ساینده ساخته شده از آن دارای دوام عالی و تمیزی پردازش بالا هستند که برای سنگ زنی دقیق ابزارهای اندازه گیری، شفت های اصلی تراش، ابزار و قطعات دستگاه، قطعات کار رزوه کاری و نمونه بردارها و غیره مناسب هستند.
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