首页|电子束熔炼用水冷铜坩埚研制

电子束熔炼用水冷铜坩埚研制

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电子束熔炼作为一种优异的真空冶炼技术,其核心部件水冷坩埚的结构设计尤为重要,坩埚的冷却性能将直接影响电子束熔炼的效果及安全.通过理论分析、数值模拟、试验考核,研究了坩埚水道结构、熔池形貌对坩埚冷却能力的影响.通过坩埚选材、熔池利用率分析、能量损耗分析和冷却计算确定了坩埚结构,建立了数值仿真模型,采用模拟计算方式对比了两种熔池形貌的坩埚在不同装料量下的冷却性能,并针对性能优异的坩埚开展了试验考核.结果表明:模拟不同锭厚条件下,坩埚B的冷却水温度和坩埚表面温度较坩埚A均偏低,坩埚B的熔池形状和水道结构匹配更合理,散热效果更好.试验考核过程中坩埚B状态稳定,满足设计要求.
Development of Water-cooled Copper Crucible for Electron Beam Melting
As an excellent vacuum smelting technology,the structural design of the water-cooled crucible,the core component of electron beam melting,is particularly important.The crucible cooling performance directly affects the performance and safety of electron beam melting.The influences of crucible water channel structure and melt pool morphology on the cooling capacity of crucibles were investigated through theoretical analysis,numerical simulation,and an experimental assessment.The crucible structure was determined through crucible material selection,melt pool utilization rate analysis,energy loss analysis and cooling calculation.A numerical simulation model was established and used to compare the cooling performance of two types of molten pool crucibles under different loading conditions,and experimental assessment was conducted on crucible with excellent performance.The results show that under different ingot thicknesses,the cooling water temperature and surface temperature of crucible B are lower than those of crucible A in numerical simulation,indicating that the shape of the molten pool and the structure of the water channel in crucible B are more reasonable and have better heat dissipation effects.The experimental assessment shows that the state of crucible B is stable and meets the design requirements.

water-cooled cruciblewaterway designmolten pool morphologysimulationelectron beam melting

闫超、张涛、贾子朝、成成、赵国华

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核工业理化工程研究院,天津 300180

粒子输运与富集技术全国重点实验室,天津 300180

水冷坩埚 水道设计 熔池形貌 数值模拟 电子束熔炼

2024

真空
中国机械工业集团公司沈阳真空技术研究所

真空

CSTPCD
影响因子:0.926
ISSN:1002-0322
年,卷(期):2024.61(2)
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