Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Spinel-based crucible for smelting nickel-based superalloy and preparation method of spinel-based crucible
The invention relates to a spinel-based crucible for smelting a nickel-based superalloy and a preparation method of the spinel-based crucible. According to the technical scheme, spinel fine powder, aluminum oxide micro powder, magnesium lignosulfonate and deionized water are mixed and subjected to spray drying, and mixed fine powder A is obtained; taking spinel fine powder, aluminum nitride powder and boric acid as mixed powder, adding absolute ethyl alcohol, and carrying out ball milling and drying to obtain mixed fine powder B; the preparation method comprises the following steps: adding spinel particles with the particle size of 5-3mm, spinel particles with the particle size of 3-1mm and spinel particles with the particle size of less than or equal to 1mm into a mixing mill, adding absolute ethyl alcohol, mixing and milling, then sequentially adding hydratable aluminum oxide, yttrium oxide powder, the mixed fine powder A and the mixed fine powder B, mixing and milling, carrying out cold isostatic pressing, drying, and carrying out heat treatment at 1650-1750 DEG C under a nitrogen condition, so as to obtain the aluminum oxide-yttrium oxide composite material. And preparing the spinel-based crucible for smelting the nickel-based high-temperature alloy. The prepared product is good in thermal shock resistance, excellent in high-temperature mechanical property and excellent in nickel-based high-temperature alloy melt erosion resistance and infiltration resistance.
本发明涉及一种镍基高温合金熔炼用尖晶石基坩埚及其制备方法。其技术方案是：将尖晶石细粉、氧化铝微粉、木质素磺酸镁和去离子水混合，喷雾干燥，得混合细粉A。以尖晶石细粉、氮化铝粉和硼酸为混合粉料，外加无水乙醇，球磨，干燥，得混合细粉B。将粒度为5～3mm的尖晶石颗粒、粒度为3～1mm的尖晶石颗粒和粒度≤1mm的尖晶石颗粒加入混碾机中，外加无水乙醇，混碾，然后依次加入可水合氧化铝、氧化钇粉、混合细粉A和混合细粉B，混碾，冷等静压成型，干燥，于1650～1750℃和氮气条件下热处理，制得镍基高温合金熔炼用尖晶石基坩埚。本发明所制制品热震稳定性好、高温力学性能优异、抗镍基高温合金熔体侵蚀能力和渗透能力优良。
Spinel-based crucible for smelting nickel-based superalloy and preparation method of spinel-based crucible
The invention relates to a spinel-based crucible for smelting a nickel-based superalloy and a preparation method of the spinel-based crucible. According to the technical scheme, spinel fine powder, aluminum oxide micro powder, magnesium lignosulfonate and deionized water are mixed and subjected to spray drying, and mixed fine powder A is obtained; taking spinel fine powder, aluminum nitride powder and boric acid as mixed powder, adding absolute ethyl alcohol, and carrying out ball milling and drying to obtain mixed fine powder B; the preparation method comprises the following steps: adding spinel particles with the particle size of 5-3mm, spinel particles with the particle size of 3-1mm and spinel particles with the particle size of less than or equal to 1mm into a mixing mill, adding absolute ethyl alcohol, mixing and milling, then sequentially adding hydratable aluminum oxide, yttrium oxide powder, the mixed fine powder A and the mixed fine powder B, mixing and milling, carrying out cold isostatic pressing, drying, and carrying out heat treatment at 1650-1750 DEG C under a nitrogen condition, so as to obtain the aluminum oxide-yttrium oxide composite material. And preparing the spinel-based crucible for smelting the nickel-based high-temperature alloy. The prepared product is good in thermal shock resistance, excellent in high-temperature mechanical property and excellent in nickel-based high-temperature alloy melt erosion resistance and infiltration resistance.
本发明涉及一种镍基高温合金熔炼用尖晶石基坩埚及其制备方法。其技术方案是：将尖晶石细粉、氧化铝微粉、木质素磺酸镁和去离子水混合，喷雾干燥，得混合细粉A。以尖晶石细粉、氮化铝粉和硼酸为混合粉料，外加无水乙醇，球磨，干燥，得混合细粉B。将粒度为5～3mm的尖晶石颗粒、粒度为3～1mm的尖晶石颗粒和粒度≤1mm的尖晶石颗粒加入混碾机中，外加无水乙醇，混碾，然后依次加入可水合氧化铝、氧化钇粉、混合细粉A和混合细粉B，混碾，冷等静压成型，干燥，于1650～1750℃和氮气条件下热处理，制得镍基高温合金熔炼用尖晶石基坩埚。本发明所制制品热震稳定性好、高温力学性能优异、抗镍基高温合金熔体侵蚀能力和渗透能力优良。
Spinel-based crucible for smelting nickel-based superalloy and preparation method of spinel-based crucible
一种镍基高温合金熔炼用尖晶石基坩埚及其制备方法
WANG ZHOUFU (Autor:in) / ZHAO JIABAO (Autor:in) / LIU HAO (Autor:in) / LIU WENYUAN (Autor:in) / SONG HAOKAI (Autor:in) / MA YAN (Autor:in) / WANG XITANG (Autor:in)
23.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C22C
Legierungen
,
ALLOYS
/
F26B
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
,
Trocknen von festen Gütern oder Erzeugnissen durch Entfernen von Flüssigkeit
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
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