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Crucible |
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Implementation of standards：HB-5407-88
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Description: isostatic pressing crucible smelting industry is emerging in recent years smelting tools, as ancillary products, widely used in vacuum and non-vacuum induction furnace, crucible appears to solve the high-temperature refractory alloy melting tool in the smelting process easy to sneak impurities and other problems, has been widely promoted. I plant the isostatic pressing crucible material diversification, the volume model series in the market have considerable coverage. I plant the production of corundum crucible is still a national initiative, its performance is higher than the magnesium oxide and other materials crucible, has gradually been recognized by the majority of users.
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| 材质 |
MgO |
Al2O3 |
FeO3 |
SiO2 |
CaO |
| A |
≤0 |
≥98 |
≤0.3 |
≤0.6 |
≤0.5 |
| MA |
85-90 |
12-8 |
≤0.5 |
≤1.0 |
≤1.0 |
| M |
≥96 |
≤0.1 |
≤1.0 |
≤1.0 |
≤1.0 |
| 材质 |
显气孔率 |
常温耐压强度 |
热膨胀数 |
耐急冷急热次数 |
体密Kg/m3 |
最高工温度℃ |
| A |
20-22 |
≥22.0 |
≤8.2×10-6 |
≥40 |
3500-4000 |
1700℃ |
| MA |
18-22 |
≥14.7 |
≤9×10-6 |
≥40 |
2800-3050 |
1650℃ |
| M |
14-19 |
≥19.6 |
≤13×10-6 |
≥20 |
2900-3100 |
1650℃ |
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