Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
MgO-TiO2 crucible for vacuum induction melting as well as preparation and application of MgO-TiO2 crucible
The invention discloses a preparation method of a high-chemical-stability MgO-TiO2 crucible for vacuum induction melting, and belongs to the technical field of high-temperature refractory materials. Electro-molten MgO sand and titanium dioxide are used as raw materials, after magnesite sand is uniformly mixed according to a certain particle size requirement, a crucible biscuit is formed by adopting cold isostatic pressing, and a high-chemical-stability MgO-TiO2 crucible is obtained; and carrying out sintering treatment in a high-temperature kiln at the temperature of 1680 +/-30 DEG C. The MgO-TiO2 crucible has the characteristics of high density, good thermal shock resistance and strong chemical stability, is suitable for batch-type induction melting conditions with relatively large temperature difference fluctuation, can resist melt permeation and chemical erosion, and can be used for preparing a high-temperature-resistant crucible. And the crucible and active elements (Al and Ti) in the alloy melt are not subjected to chemical reaction under high-temperature vacuum, so that the alloy melt is not polluted, and the purity of the alloy is improved. Therefore, the method is very suitable for smelting super-pure special alloy with high aluminum and titanium contents.
本发明公开了一种真空感应熔炼用的高化学稳定性的MgO‑TiO2坩埚的制备方法，属于高温耐火材料技术领域，本发明所用电熔MgO砂和二氧化钛为原料，将镁砂按照一定的粒度要求混合均匀后，采用冷等静压成型坩埚素坯，在1680℃±30℃的高温窑内进行烧结处理，本发明的MgO‑TiO2坩埚具有致密度高、抗热震性能好和化学稳定性强的特点，适用于温差波动较大的间歇式感应熔炼条件，同时，可抵抗熔体的渗透和化学侵蚀，高温真空下坩埚与合金熔体中的活性元素(Al、Ti)不发生化学反应，不污染合金熔体，提高了合金的纯净度。因此，十分适合熔炼含高铝、钛含量的超纯净特种合金。
MgO-TiO2 crucible for vacuum induction melting as well as preparation and application of MgO-TiO2 crucible
The invention discloses a preparation method of a high-chemical-stability MgO-TiO2 crucible for vacuum induction melting, and belongs to the technical field of high-temperature refractory materials. Electro-molten MgO sand and titanium dioxide are used as raw materials, after magnesite sand is uniformly mixed according to a certain particle size requirement, a crucible biscuit is formed by adopting cold isostatic pressing, and a high-chemical-stability MgO-TiO2 crucible is obtained; and carrying out sintering treatment in a high-temperature kiln at the temperature of 1680 +/-30 DEG C. The MgO-TiO2 crucible has the characteristics of high density, good thermal shock resistance and strong chemical stability, is suitable for batch-type induction melting conditions with relatively large temperature difference fluctuation, can resist melt permeation and chemical erosion, and can be used for preparing a high-temperature-resistant crucible. And the crucible and active elements (Al and Ti) in the alloy melt are not subjected to chemical reaction under high-temperature vacuum, so that the alloy melt is not polluted, and the purity of the alloy is improved. Therefore, the method is very suitable for smelting super-pure special alloy with high aluminum and titanium contents.
本发明公开了一种真空感应熔炼用的高化学稳定性的MgO‑TiO2坩埚的制备方法，属于高温耐火材料技术领域，本发明所用电熔MgO砂和二氧化钛为原料，将镁砂按照一定的粒度要求混合均匀后，采用冷等静压成型坩埚素坯，在1680℃±30℃的高温窑内进行烧结处理，本发明的MgO‑TiO2坩埚具有致密度高、抗热震性能好和化学稳定性强的特点，适用于温差波动较大的间歇式感应熔炼条件，同时，可抵抗熔体的渗透和化学侵蚀，高温真空下坩埚与合金熔体中的活性元素(Al、Ti)不发生化学反应，不污染合金熔体，提高了合金的纯净度。因此，十分适合熔炼含高铝、钛含量的超纯净特种合金。
MgO-TiO2 crucible for vacuum induction melting as well as preparation and application of MgO-TiO2 crucible
真空感应熔炼用MgO-TiO2坩埚及制备与应用
MA YINGCHE (Autor:in) / SONG QINGZHONG (Autor:in) / ZHA XIANGDONG (Autor:in) / GAO MING (Autor:in) / ZHANG LONG (Autor:in) / DU ZHANHUI (Autor:in)
29.11.2024
Patent
Elektronische Ressource
Chinesisch
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