Active Member
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[China]
Address: Songlou street
Contact name:Venus
Zhengzhou Jansincere Refractory Co., Ltd |
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High Refractoriness Direct Bonded Magnesia-chrome Brick for Cement Kiln
Introduction:
Direct bonded magnesia-chromium brick is made from mainly sintered magnesite and chrome oxide. By high pressure shaping and high temperature firing.
Features:
Direct bonded magnesia-chromium brick has the feature of small expansion, the good thermal shock resistance and slag resistance.
Application:
Direct bonded magnesia-chromium brick is widely used for many kinds of industrial furnace and kiln such as open-hearth furnace, cement kiln, etc.
Technical Index:
| Item | DMC-12 | DMC-9B | DMC-9A | DMC-6 | DMC-4 |
| Standard Value | Standard Value | Standard Value | Standard Value | Standard Value | |
| MgO, % | ≥60 | ≥70 | ≥70 | ≥75 | ≥80 |
| Cr2O3, % | ≥12 | ≥9 | ≥9 | ≥6 | ≥4 |
| SiO2,% | ≤3.2 | ≤3.0 | ≤2.8 | ≤2.8 | ≤2.5 |
| Apparent Porosity,% | ≤19 | ≤19 | ≤19 | ≤18 | ≤18 |
| Bulk Density, G/Cm3 | ≥3.0 | ≥2.98 | ≥2.98 | ≥2.95 | ≥2.93 |
| Cold Crushing Strength,Mpa | ≥35 | ≥40 | ≥40 | ≥40 | ≥40 |
| 0.2.Mparefractoriness Under Load(℃) | ≥1580 | ≥1580 | ≥1600 | ≥1600 | ≥1600 |
| Thermal Shock Resistance, Times(1100℃～Water Cooling) | ≥4 | ≥4 | ≥4 | ≥4 | ≥4 |
