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MAX-phase composite ultralow-carbon magnesium-calcium-carbon material and preparation method thereof
The invention relates to an MAX-phase composite ultralow-carbon magnesium-calcium-carbon material and a preparation method thereof.The MAX-phase composite ultralow-carbon magnesium-calcium-carbon material comprises inorganic raw materials and modified phenolic resin, the inorganic raw materials comprise, by mass, 50%-80% of magnesium-calcium sand, 10%-30% of magnesia fine powder, 0-1% of crystalline flake graphite, 0-1% of boron carbide, 1%-10% of Ti3AlC2 powder and 1%-10% of Ti3SiC2 powder, and the modified phenolic resin is modified phenolic resin; the addition amount of the modified phenolic resin is 2-4% of the total mass of the inorganic raw materials, and the preparation method comprises the following steps: mixing the magnesia-calcium sands with different particle sizes, adhering a resin layer and an MAX phase/graphite layer to the surface of the aggregate, mixing and stirring the raw materials, ageing the materials, carrying out compression molding, baking and packaging a sample. The MAX-phase composite ultralow-carbon magnesium-calcium-carbon material disclosed by the invention not only has good hydration resistance, but also is high in strength, not easy to crack, strong in erosion resistance, excellent in high-temperature stability, not easy to peel off in the use process, long in service life and applicable to steel ladles smelted by high-grade steel such as low-carbon steel and variety steel.
本发明涉及一种MAX相复合超低碳镁钙碳材料及其制备方法，所述MAX相复合超低碳镁钙碳材料包括无机原料和改性酚醛树脂，所述的无机原料按质量百分比计，包括镁钙砂50～80%、镁砂细粉10～30%、鳞片石墨0～1%、碳化硼0～1%、Ti3AlC2粉1～10%和Ti3SiC2粉1～10%，所述的改性酚醛树脂的加入量为无机原料总质量的2‑4%，其制备方法，包括以下步骤：不同粒径的镁钙砂混合、骨料表面粘附树脂层和MAX相/石墨层、原料混合搅拌、困料、压制成型、烘烤和样品封装；本发明涉及的MAX相复合超低碳镁钙碳材料不仅具有良好的抗水化性，而且强度高、不易开裂、抗侵蚀性强和高温稳定性优良，使用过程中不易出现剥落现象，使用寿命长，能适用于低碳钢、品种钢等高级钢冶炼的钢包中。
MAX-phase composite ultralow-carbon magnesium-calcium-carbon material and preparation method thereof
The invention relates to an MAX-phase composite ultralow-carbon magnesium-calcium-carbon material and a preparation method thereof.The MAX-phase composite ultralow-carbon magnesium-calcium-carbon material comprises inorganic raw materials and modified phenolic resin, the inorganic raw materials comprise, by mass, 50%-80% of magnesium-calcium sand, 10%-30% of magnesia fine powder, 0-1% of crystalline flake graphite, 0-1% of boron carbide, 1%-10% of Ti3AlC2 powder and 1%-10% of Ti3SiC2 powder, and the modified phenolic resin is modified phenolic resin; the addition amount of the modified phenolic resin is 2-4% of the total mass of the inorganic raw materials, and the preparation method comprises the following steps: mixing the magnesia-calcium sands with different particle sizes, adhering a resin layer and an MAX phase/graphite layer to the surface of the aggregate, mixing and stirring the raw materials, ageing the materials, carrying out compression molding, baking and packaging a sample. The MAX-phase composite ultralow-carbon magnesium-calcium-carbon material disclosed by the invention not only has good hydration resistance, but also is high in strength, not easy to crack, strong in erosion resistance, excellent in high-temperature stability, not easy to peel off in the use process, long in service life and applicable to steel ladles smelted by high-grade steel such as low-carbon steel and variety steel.
本发明涉及一种MAX相复合超低碳镁钙碳材料及其制备方法，所述MAX相复合超低碳镁钙碳材料包括无机原料和改性酚醛树脂，所述的无机原料按质量百分比计，包括镁钙砂50～80%、镁砂细粉10～30%、鳞片石墨0～1%、碳化硼0～1%、Ti3AlC2粉1～10%和Ti3SiC2粉1～10%，所述的改性酚醛树脂的加入量为无机原料总质量的2‑4%，其制备方法，包括以下步骤：不同粒径的镁钙砂混合、骨料表面粘附树脂层和MAX相/石墨层、原料混合搅拌、困料、压制成型、烘烤和样品封装；本发明涉及的MAX相复合超低碳镁钙碳材料不仅具有良好的抗水化性，而且强度高、不易开裂、抗侵蚀性强和高温稳定性优良，使用过程中不易出现剥落现象，使用寿命长，能适用于低碳钢、品种钢等高级钢冶炼的钢包中。
MAX-phase composite ultralow-carbon magnesium-calcium-carbon material and preparation method thereof
一种MAX相复合超低碳镁钙碳材料及其制备方法
LIU XINHONG (author) / SU KAI (author) / TIAN XUEKUN (author) / ZHAO ZHENYI (author) / LIU XUSHENG (author)
2024-02-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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