Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alumina crucible for high-temperature alloy smelting and preparation method thereof
The invention provides an alumina crucible for high-temperature alloy smelting and a preparation method thereof. The alumina crucible is prepared from the following components in parts by weight: 55-70 parts of alumina powder; 30 to 50 parts of quartz powder; 0.5 to 3 parts of silica sol; 0.5 to 3 parts of zirconium sol; 17 to 22 parts of deionized water; and 0.1-0.5 part of a dispersant. According to the alumina crucible for smelting the high-temperature alloy, the silica sol and the zirconium sol are introduced to generate zirconium silicate in situ, and the heat resistance of the crucible is improved due to the existence of the zirconium silicate, so that the crack expansion of the crucible in a rapid cooling and rapid heating environment is prevented, and the thermal shock resistance of the crucible is effectively improved.
本发明提供了一种高温合金熔炼用氧化铝坩埚及其制备方法，氧化铝坩埚由包括如下重量份数的组分制备而得：氧化铝粉55‑70份；石英粉30‑50份；硅溶胶0.5‑3份；锆溶胶0.5‑3份；去离子水17‑22份；分散剂0.1‑0.5份。本发明所述的高温合金熔炼用氧化铝坩埚，通过引入硅溶胶和锆溶胶原位生成硅酸锆，硅酸锆的存在增加了坩埚的耐热性能，从而阻止了坩埚在经受急冷急热环境下裂纹的扩展，有效提高了坩埚的抗热震性。
Alumina crucible for high-temperature alloy smelting and preparation method thereof
The invention provides an alumina crucible for high-temperature alloy smelting and a preparation method thereof. The alumina crucible is prepared from the following components in parts by weight: 55-70 parts of alumina powder; 30 to 50 parts of quartz powder; 0.5 to 3 parts of silica sol; 0.5 to 3 parts of zirconium sol; 17 to 22 parts of deionized water; and 0.1-0.5 part of a dispersant. According to the alumina crucible for smelting the high-temperature alloy, the silica sol and the zirconium sol are introduced to generate zirconium silicate in situ, and the heat resistance of the crucible is improved due to the existence of the zirconium silicate, so that the crack expansion of the crucible in a rapid cooling and rapid heating environment is prevented, and the thermal shock resistance of the crucible is effectively improved.
本发明提供了一种高温合金熔炼用氧化铝坩埚及其制备方法，氧化铝坩埚由包括如下重量份数的组分制备而得：氧化铝粉55‑70份；石英粉30‑50份；硅溶胶0.5‑3份；锆溶胶0.5‑3份；去离子水17‑22份；分散剂0.1‑0.5份。本发明所述的高温合金熔炼用氧化铝坩埚，通过引入硅溶胶和锆溶胶原位生成硅酸锆，硅酸锆的存在增加了坩埚的耐热性能，从而阻止了坩埚在经受急冷急热环境下裂纹的扩展，有效提高了坩埚的抗热震性。
Alumina crucible for high-temperature alloy smelting and preparation method thereof
一种高温合金熔炼用氧化铝坩埚及其制备方法
FAN HONGNA (Autor:in) / FAN JIAXIAN (Autor:in) / LI MINMIN (Autor:in) / LI XIN (Autor:in) / QI CHANGJIAN (Autor:in) / ZHANG TIANYU (Autor:in)
30.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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