Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-carbon-content medium-temperature-fired metal-bonded aluminum-zirconium-carbon sliding plate brick and preparation method thereof
The invention relates to the field of refractory materials, in particular to a high-carbon-content medium-temperature-fired metal-bonded aluminum-zirconium-carbon sliding plate brick and a preparation method thereof. The sliding plate brick comprises the following raw materials: 60%-65% of fused corundum aggregate, 10%-15% of fused zirconium mullite aggregate, 6%-8% of graphite and/or carbon black, 4%-6% of metal aluminum powder, 1%-2% of metal silicon powder, 6%-8% of white corundum powder, 3%-6% of alumina micro powder, 2%-3% of silicon carbide and 0.5%-1% of boron carbide. The thermosetting phenolic resin accounts for 2-3% of the total weight of the raw materials, and the silicon modified phenolic resin accounts for 2-3% of the total weight The composition and content of the raw materials are limited, the wetting angle of molten steel at the sliding plate casting hole and the sliding plate can be increased through graphite and/or carbon black with high carbon content, and the problems of galling and material falling in a sliding plate stroke area are effectively relieved; and the thermosetting phenolic resin and the silicon-modified phenolic resin are used as binding agents, so that the medium-temperature strength of the sliding plate can be improved through firm Si-O-Si bond combination before the metal aluminum is melted and part of aluminum carbide is generated to form strength, the generation amount of the aluminum carbide is reduced, and the hydration phenomenon of the medium-temperature fired sliding plate in the storage process is effectively reduced.
本发明涉及耐火材料领域，尤其涉及高碳含量的中温烧成金属结合铝锆碳滑板砖及其制备方法。滑板砖的原料包括：电熔刚玉骨料60％‑65％，电熔锆莫来石骨料10％‑15％，石墨和/或炭黑6％‑8％，金属铝粉4％‑6％，金属硅粉1％‑2％，白刚玉粉6％‑8％，氧化铝微粉3％‑6％，碳化硅2％‑3％，碳化硼0.5％‑1％；及占原料总重量2％‑3％的热固性酚醛树脂和2％‑3％的硅改性酚醛树脂。本发明通过限定原料组成及含量，高碳含量的石墨和/或炭黑可增大滑板铸孔处钢水与滑板的润湿角，有效缓解滑板行程区拉毛掉料问题；以热固性酚醛树脂和硅改性酚醛树脂做结合剂，可在金属铝熔化以及部分碳化铝生成形成强度之前，通过牢固的Si‑O‑Si键结合提高滑板的中温强度，并减少碳化铝的生成量，有效减少中温烧成滑板在存储过程中发生的水化现象。
High-carbon-content medium-temperature-fired metal-bonded aluminum-zirconium-carbon sliding plate brick and preparation method thereof
The invention relates to the field of refractory materials, in particular to a high-carbon-content medium-temperature-fired metal-bonded aluminum-zirconium-carbon sliding plate brick and a preparation method thereof. The sliding plate brick comprises the following raw materials: 60%-65% of fused corundum aggregate, 10%-15% of fused zirconium mullite aggregate, 6%-8% of graphite and/or carbon black, 4%-6% of metal aluminum powder, 1%-2% of metal silicon powder, 6%-8% of white corundum powder, 3%-6% of alumina micro powder, 2%-3% of silicon carbide and 0.5%-1% of boron carbide. The thermosetting phenolic resin accounts for 2-3% of the total weight of the raw materials, and the silicon modified phenolic resin accounts for 2-3% of the total weight The composition and content of the raw materials are limited, the wetting angle of molten steel at the sliding plate casting hole and the sliding plate can be increased through graphite and/or carbon black with high carbon content, and the problems of galling and material falling in a sliding plate stroke area are effectively relieved; and the thermosetting phenolic resin and the silicon-modified phenolic resin are used as binding agents, so that the medium-temperature strength of the sliding plate can be improved through firm Si-O-Si bond combination before the metal aluminum is melted and part of aluminum carbide is generated to form strength, the generation amount of the aluminum carbide is reduced, and the hydration phenomenon of the medium-temperature fired sliding plate in the storage process is effectively reduced.
本发明涉及耐火材料领域，尤其涉及高碳含量的中温烧成金属结合铝锆碳滑板砖及其制备方法。滑板砖的原料包括：电熔刚玉骨料60％‑65％，电熔锆莫来石骨料10％‑15％，石墨和/或炭黑6％‑8％，金属铝粉4％‑6％，金属硅粉1％‑2％，白刚玉粉6％‑8％，氧化铝微粉3％‑6％，碳化硅2％‑3％，碳化硼0.5％‑1％；及占原料总重量2％‑3％的热固性酚醛树脂和2％‑3％的硅改性酚醛树脂。本发明通过限定原料组成及含量，高碳含量的石墨和/或炭黑可增大滑板铸孔处钢水与滑板的润湿角，有效缓解滑板行程区拉毛掉料问题；以热固性酚醛树脂和硅改性酚醛树脂做结合剂，可在金属铝熔化以及部分碳化铝生成形成强度之前，通过牢固的Si‑O‑Si键结合提高滑板的中温强度，并减少碳化铝的生成量，有效减少中温烧成滑板在存储过程中发生的水化现象。
High-carbon-content medium-temperature-fired metal-bonded aluminum-zirconium-carbon sliding plate brick and preparation method thereof
一种高碳含量的中温烧成金属结合铝锆碳滑板砖及其制备方法
HAO LIKE (Autor:in) / YAO CHUNZHAN (Autor:in) / WANG WENHUAN (Autor:in) / GAN GUANGYONG (Autor:in) / WANG ZHIYING (Autor:in) / WANG GUANGLIN (Autor:in) / SONG LIKUAN (Autor:in) / LI ZHENG (Autor:in)
11.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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