Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Flow guide pipe for alloy powder, and preparation method thereof
The invention belongs to the field of refractory materials, and particularly relates to a flow guide pipe for alloy powder, and a preparation method thereof. The flow guide pipe adopts high-purity zirconium oxide as a main raw material, and is added with six compounds of CaO, MgO, Y2O3, Nb2O3, CeO2 and Sc2O3 as stabilizers, wherein the addition amounts of the high-purity zirconium oxide and the six compounds are as follows in percentage by mass: 82-91% of the high-purity zirconium oxide, 1.5-3.0% of CaO, 1.5-3.0% of MgO, 1.5-3.0% of Y2O3, 1.5-3.0% of Nb2O3, and 1.5-3.0% of Sc2O3, melting is performed at a high temperature in an electric arc furnace after uniform mixing, and oxidizing, blowing balls to remove carbon, and crushing are performed to obtain the composite stable zirconium oxidefine powder raw material. According to the invention, the problems of poor thermal shock resistance, no erosion and scouring resistance and serious diameter expansion of the flow guide pipe in the gasatomization process are effectively solved.
本发明属于耐火材料领域，具体涉及一种合金粉末用导流管及其制备方法。导流管采用高纯氧化锆为主要原料，并添加CaO、MgO、Y2O3、Nb2O3、CeO2和Sc2O3六种化合物作为稳定剂，高纯氧化锆与六种化合物的加入量按质量比分别为：高纯氧化锆82‑91%、CaO1.5‑3.0%、MgO1.5‑3.0%、Y2O31.5‑3.0%、Nb2O31.5‑3.0%、Sc2O31.5‑3.0%；混合均匀后，在电弧炉内高温熔化，再经氧化吹球除碳、破碎工艺制得复合稳定氧化锆细粉原料。本发明有效解决了气雾化工艺导流管抗热震性能差、不耐侵蚀和冲刷，以及扩径严重的问题。
Flow guide pipe for alloy powder, and preparation method thereof
The invention belongs to the field of refractory materials, and particularly relates to a flow guide pipe for alloy powder, and a preparation method thereof. The flow guide pipe adopts high-purity zirconium oxide as a main raw material, and is added with six compounds of CaO, MgO, Y2O3, Nb2O3, CeO2 and Sc2O3 as stabilizers, wherein the addition amounts of the high-purity zirconium oxide and the six compounds are as follows in percentage by mass: 82-91% of the high-purity zirconium oxide, 1.5-3.0% of CaO, 1.5-3.0% of MgO, 1.5-3.0% of Y2O3, 1.5-3.0% of Nb2O3, and 1.5-3.0% of Sc2O3, melting is performed at a high temperature in an electric arc furnace after uniform mixing, and oxidizing, blowing balls to remove carbon, and crushing are performed to obtain the composite stable zirconium oxidefine powder raw material. According to the invention, the problems of poor thermal shock resistance, no erosion and scouring resistance and serious diameter expansion of the flow guide pipe in the gasatomization process are effectively solved.
本发明属于耐火材料领域，具体涉及一种合金粉末用导流管及其制备方法。导流管采用高纯氧化锆为主要原料，并添加CaO、MgO、Y2O3、Nb2O3、CeO2和Sc2O3六种化合物作为稳定剂，高纯氧化锆与六种化合物的加入量按质量比分别为：高纯氧化锆82‑91%、CaO1.5‑3.0%、MgO1.5‑3.0%、Y2O31.5‑3.0%、Nb2O31.5‑3.0%、Sc2O31.5‑3.0%；混合均匀后，在电弧炉内高温熔化，再经氧化吹球除碳、破碎工艺制得复合稳定氧化锆细粉原料。本发明有效解决了气雾化工艺导流管抗热震性能差、不耐侵蚀和冲刷，以及扩径严重的问题。
Flow guide pipe for alloy powder, and preparation method thereof
一种合金粉末用导流管及其制备方法
YU JIANBIN (Autor:in) / WANG LAIWEN (Autor:in) / MA WEIKUI (Autor:in) / QIAN FAN (Autor:in) / LIU GUOQI (Autor:in)
02.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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