Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Magnesia spinel castable for bottom of steel ladle and preparation method thereof
The invention relates to a magnesia spinel castable for the ladle bottom of a steel ladle and a preparation method thereof. The magnesia spinel castable comprises the following raw materials in partsby weight: 50-60 parts of sintered corundum particles, 15-25 parts of sintered corundum fine powder, 10-20 parts of magnesium aluminate spinel fine powder, 3-5 parts of activated aluminum oxide fine powder, 1-1.5 parts of organic fibers, 2-4 parts of alumina sol, and 0.05-1 part of a polycarboxylate. The invention has the advantages of excellent thermal shock resistance, low corrosivity and greatly prolonged service life. Aluminum sol is used as a binding agent, so that introduced calcium oxide impurities can be reduced.
本发明涉及一种钢包包底用镁尖晶石质浇注料及其制备方法，按重量份包括以下原料：烧结刚玉颗粒50‑60份；烧结刚玉细粉15‑25份；镁铝尖晶石细粉10‑20份；活性氧化铝细粉3‑5份；有机纤维1‑1.5份；铝溶胶2‑4份；聚羧酸盐0.05‑1份。优点是：具有优良的热震稳定性、低侵蚀性，使用寿命有较大幅度提高。采用铝溶胶作为结合剂，能够减少引入的氧化钙杂质。
Magnesia spinel castable for bottom of steel ladle and preparation method thereof
The invention relates to a magnesia spinel castable for the ladle bottom of a steel ladle and a preparation method thereof. The magnesia spinel castable comprises the following raw materials in partsby weight: 50-60 parts of sintered corundum particles, 15-25 parts of sintered corundum fine powder, 10-20 parts of magnesium aluminate spinel fine powder, 3-5 parts of activated aluminum oxide fine powder, 1-1.5 parts of organic fibers, 2-4 parts of alumina sol, and 0.05-1 part of a polycarboxylate. The invention has the advantages of excellent thermal shock resistance, low corrosivity and greatly prolonged service life. Aluminum sol is used as a binding agent, so that introduced calcium oxide impurities can be reduced.
本发明涉及一种钢包包底用镁尖晶石质浇注料及其制备方法，按重量份包括以下原料：烧结刚玉颗粒50‑60份；烧结刚玉细粉15‑25份；镁铝尖晶石细粉10‑20份；活性氧化铝细粉3‑5份；有机纤维1‑1.5份；铝溶胶2‑4份；聚羧酸盐0.05‑1份。优点是：具有优良的热震稳定性、低侵蚀性，使用寿命有较大幅度提高。采用铝溶胶作为结合剂，能够减少引入的氧化钙杂质。
Magnesia spinel castable for bottom of steel ladle and preparation method thereof
一种钢包包底用镁尖晶石质浇注料及其制备方法
ZHANG YIXIAN (Autor:in) / LIU LINLIN (Autor:in) / ZHAO XIANHUA (Autor:in) / JIN ZHAO (Autor:in) / HOU ZHONGYANG (Autor:in) / YIN BIN (Autor:in)
09.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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