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 镁质和镁铬质捣打料选用优质镁砂和镁铬材料经粒度配比加入各种结合剂、促凝剂和烧结剂制成。特点：强度高，整体性好，高温下体积稳定性强。是各种工业窑炉保温、隔热、密封的理想材料。 |
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牌 号
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MGe
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MRD-1
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MRD-2
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MRD-3
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MRD-4
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MRD-5
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最高使用温度(℃)
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1600
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1750
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≥1750
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1700
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≥1700
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≥1700
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化学成份
(%)
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MgO
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58.61
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≥94
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95
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93
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95
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95
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Cr2O3
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17.36
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---
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---
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---
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---
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---
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CaO
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0.73
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≤2.0
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---
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≤2.0
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---
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---
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SiO2
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4.17
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≤1.0
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≤3.0
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≤3.0
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---
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---
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线变化率
(%)
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110℃×24h
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---
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---
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---
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-1.0/+0.2
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-0.1
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---
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1000℃×3h
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+0.3/0.1
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---
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---
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---
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---
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---
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1600℃×3h
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-0.25/-0.50
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---
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---
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-0.70/1.0
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-0.4/0.8
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-0.3
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耐压强度
(Mpa)
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20
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13.01
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---
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---
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---
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---
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---
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110℃×3h
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---
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40
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40
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30
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70
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60
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1000℃×3h
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7.14
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---
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---
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---
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---
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---
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1600℃×3h
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10.17
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30
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20
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50
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60
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60
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体积密度
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100℃×24h
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---
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2.9
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2.8
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2.7
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2.9
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2.8
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1600℃×3h
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---
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---
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---
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2.78
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2.85
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2.90
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容 量
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＞3.0
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---
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---
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---
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---
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---
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