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Composite high-temperature refractory material
The invention provides a composite high-temperature refractory material. The composite high-temperature refractory material is prepared by sintering 28.2 wt%-29.55 wt% of aluminum oxide, 1.5 wt%-6 wt% of titanium dioxide and 65.8 wt%-68.95 wt% of chromic oxide at normal pressure, the titanium-doped chromium corundum refractory material is prepared from the following components in percentage by weight: 91.9 to 99.2 percent of titanium-doped chromium corundum, 1.5 to 7.6 percent of aluminum-doped chromium titanate and 0.05 to 0.5 percent of (Cr, Ti) O2 solid solution. The composite high-temperature refractory material provided by the invention has excellent mechanical properties and erosion resistance, the Vickers hardness is 13.03 to 17.12 GPa, the bending strength is 70.5 to 105.2 MPa, the compressive strength is 248.9 to 410.5 MPa, and the refractoriness is 1850 to 1950 DEG C; the anti-erosion temperature can reach 1500-1700 DEG C, and the erosion rate in slag is 1-1.67 mm/month.
本发明提供一种复合高温耐火材料，由质量百分比为28.2wt%～29.55wt%的氧化铝、1.5wt%～6wt%的二氧化钛和65.8wt%～68.95wt%三氧化二铬常压烧结而成；其构成部分包括91.9～99.2%的钛掺杂铬刚玉、1.5～7.6%的铝掺杂钛酸铬和0.05～0.5%的(Cr,Ti)O2固溶体。本发明提供的复合高温耐火材料具有优异的力学性能和抗侵蚀性能，维氏硬度为13.03～17.12GPa，抗弯强度为70.5～105.2MPa，抗压强度为248.9～410.5MPa，耐火度为1850～1950℃；抗侵蚀温度可达1500～1700℃，在炉渣中的侵蚀速率为1～1.67 mm/月。
Composite high-temperature refractory material
The invention provides a composite high-temperature refractory material. The composite high-temperature refractory material is prepared by sintering 28.2 wt%-29.55 wt% of aluminum oxide, 1.5 wt%-6 wt% of titanium dioxide and 65.8 wt%-68.95 wt% of chromic oxide at normal pressure, the titanium-doped chromium corundum refractory material is prepared from the following components in percentage by weight: 91.9 to 99.2 percent of titanium-doped chromium corundum, 1.5 to 7.6 percent of aluminum-doped chromium titanate and 0.05 to 0.5 percent of (Cr, Ti) O2 solid solution. The composite high-temperature refractory material provided by the invention has excellent mechanical properties and erosion resistance, the Vickers hardness is 13.03 to 17.12 GPa, the bending strength is 70.5 to 105.2 MPa, the compressive strength is 248.9 to 410.5 MPa, and the refractoriness is 1850 to 1950 DEG C; the anti-erosion temperature can reach 1500-1700 DEG C, and the erosion rate in slag is 1-1.67 mm/month.
本发明提供一种复合高温耐火材料，由质量百分比为28.2wt%～29.55wt%的氧化铝、1.5wt%～6wt%的二氧化钛和65.8wt%～68.95wt%三氧化二铬常压烧结而成；其构成部分包括91.9～99.2%的钛掺杂铬刚玉、1.5～7.6%的铝掺杂钛酸铬和0.05～0.5%的(Cr,Ti)O2固溶体。本发明提供的复合高温耐火材料具有优异的力学性能和抗侵蚀性能，维氏硬度为13.03～17.12GPa，抗弯强度为70.5～105.2MPa，抗压强度为248.9～410.5MPa，耐火度为1850～1950℃；抗侵蚀温度可达1500～1700℃，在炉渣中的侵蚀速率为1～1.67 mm/月。
Composite high-temperature refractory material
一种复合高温耐火材料
CUI KUNKUN (author) / ZHANG GUXING (author) / WU DONGHAI (author) / ZHANG XIAODONG (author) / LIU ERHAO (author) / HU XINGUANG (author) / FENG JIAN (author)
2024-03-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-temperature-resistant magnesium oxide refractory material
| European Patent Office | 2016