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Corundum mullite non-stick aluminum castable and preparation method thereof
The invention relates to the technical field of refractory materials, in particular to a corundum mullite non-stick aluminum castable and a preparation method thereof. The corundum mullite non-stick aluminum castable is prepared from the following raw materials in parts by weight: 70-90 parts of high-alumina bauxite, 20-40 parts of magnesia, 5-15 parts of water glass, 1-3 parts of metal aluminum powder, 1-5 parts of micron-sized fine powder and the balance of nano-sized fine powder. According to the invention, high-purity high-alumina bauxite is selected as a raw material, magnesia is added asan auxiliary material, aluminum-permeation-proof metal aluminum powder is added, a matrix enhancement technology is adopted, micron-sized fine powder and nano-sized fine powder are added, water glassis added, and mixing is carried out at normal temperature according to the closest packing principle and the size fraction matching of the invention, curing, condensing and hardening are carried outto obtain the castable which has high strength, good thermal shock resistance, high wear resistance and corrosion resistance and is not corroded by aluminum and alloy metal thereof, so that the castable does not fall off or crack in the process from drying to use, and is gradually sintered in the use process to form a uniform compact layer. A working surface is protected from being scoured, erodedand permeated by aluminum and alloy solution.
本发明涉及耐火材料技术领域，具体是一种刚玉莫来石质不沾铝浇注料及其制备方法。包括以下重量份的原料：高铝矾土70‑90份、镁砂20‑40份、水玻璃5‑15份、金属铝粉1‑3份、微米级细粉1‑5份及余量纳米级细粉。本发明通过选用高纯度的高铝矾土为原料，加入镁砂为辅料，加入防铝渗透的金属铝粉，采用基质增强技术，添加微米级细粉及纳米级细粉，添加水玻璃，按最紧密堆积原理，按照本发明的粒级配合，常温下混合，养护后凝结硬化即得具有高强度、抗热震性好、耐磨耐腐蚀性高并具有不沾铝及其合金金属侵蚀的浇注料，使其从烘干直至使用的过程中不脱落开裂，并在使用过程中逐渐烧结，形成均匀的致密层，对工作面起到保护作用而不沾铝及合金溶液的冲刷、侵蚀及渗透。
Corundum mullite non-stick aluminum castable and preparation method thereof
The invention relates to the technical field of refractory materials, in particular to a corundum mullite non-stick aluminum castable and a preparation method thereof. The corundum mullite non-stick aluminum castable is prepared from the following raw materials in parts by weight: 70-90 parts of high-alumina bauxite, 20-40 parts of magnesia, 5-15 parts of water glass, 1-3 parts of metal aluminum powder, 1-5 parts of micron-sized fine powder and the balance of nano-sized fine powder. According to the invention, high-purity high-alumina bauxite is selected as a raw material, magnesia is added asan auxiliary material, aluminum-permeation-proof metal aluminum powder is added, a matrix enhancement technology is adopted, micron-sized fine powder and nano-sized fine powder are added, water glassis added, and mixing is carried out at normal temperature according to the closest packing principle and the size fraction matching of the invention, curing, condensing and hardening are carried outto obtain the castable which has high strength, good thermal shock resistance, high wear resistance and corrosion resistance and is not corroded by aluminum and alloy metal thereof, so that the castable does not fall off or crack in the process from drying to use, and is gradually sintered in the use process to form a uniform compact layer. A working surface is protected from being scoured, erodedand permeated by aluminum and alloy solution.
本发明涉及耐火材料技术领域，具体是一种刚玉莫来石质不沾铝浇注料及其制备方法。包括以下重量份的原料：高铝矾土70‑90份、镁砂20‑40份、水玻璃5‑15份、金属铝粉1‑3份、微米级细粉1‑5份及余量纳米级细粉。本发明通过选用高纯度的高铝矾土为原料，加入镁砂为辅料，加入防铝渗透的金属铝粉，采用基质增强技术，添加微米级细粉及纳米级细粉，添加水玻璃，按最紧密堆积原理，按照本发明的粒级配合，常温下混合，养护后凝结硬化即得具有高强度、抗热震性好、耐磨耐腐蚀性高并具有不沾铝及其合金金属侵蚀的浇注料，使其从烘干直至使用的过程中不脱落开裂，并在使用过程中逐渐烧结，形成均匀的致密层，对工作面起到保护作用而不沾铝及合金溶液的冲刷、侵蚀及渗透。
Corundum mullite non-stick aluminum castable and preparation method thereof
一种刚玉莫来石质不沾铝浇注料及其制备方法
WU XIPEI (Autor:in) / ZHOU ZHIQIANG (Autor:in) / SHEN QINGLONG (Autor:in)
04.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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