熔模铸造新型镍铝青铜合金阀体

doi:10.15980/j.tzzz.2023.05.023

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特种铸造及有色合金 ›› 2023, Vol. 43 ›› Issue (5) : 704-709. DOI: 10.15980/j.tzzz.2023.05.023

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应用·精密铸造

熔模铸造新型镍铝青铜合金阀体

杨芬芬¹, 李振彦¹, 宋祥阳², 陈君逸¹, 潘源¹

作者信息 +

Investment Casting Novel Ni-Al Bronze Alloy Valve Body

Yang Fenfen¹, Li Zhenyan¹, Song Xiangyang², Chen Junyi¹, Pan Yuan¹

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文章历史 +

摘要

为验证新型镍铝青铜合金应用于阀体生产的可行性, 采用熔模铸造工艺, 模拟分析了阀体铸件的凝固过程, 针对原始模拟方案产生的缩孔、缩松及冷隔等缺陷, 进行了铸造工艺方案优化。结果表明, 采用立式放置、阶梯式浇注方式, 并在最厚位置处增加补缩通道, 可消除阀体铸件的缩孔、缩松及冷隔等缺陷。经试制生产验证, 浇注后的铸件表面品质良好。X射线探伤结果表明铸件内部无缩孔、缩松及冷隔等缺陷, 获得了优质阀体铸件。

Abstract

In order to verify the application feasibility of novel nickel-aluminum bronze alloy to the valve body production, solidification process of investment casting valve body casting was simulated and analyzed by numerical software, and the initial casting process scheme was optimized according to the analysis of shrinkage porosity and cold shut.The results indicate that the shrinkage porosity and cold shut defects can be eliminated thoroughly when vertical placement and step gating system are adopted, and feeding channels are added in the thickest location.The simulation results were verified by trial production, and results reveal that the surface quality of valve body casting is satisfied.X-ray detection results demonstrate that absence of casting defects such as shrinkage porosity and cold shut is found in the valve body, and valve body casting with high quality can be produced.

导出引用

杨芬芬, 李振彦, 宋祥阳, 陈君逸, 潘源. 熔模铸造新型镍铝青铜合金阀体[J]. 特种铸造及有色合金, 2023, 43(5): 704-709 https://doi.org/10.15980/j.tzzz.2023.05.023

Yang Fenfen, Li Zhenyan, Song Xiangyang, Chen Junyi, Pan Yuan. Investment Casting Novel Ni-Al Bronze Alloy Valve Body[J]. Special Casting & Nonferrous Alloys, 2023, 43(5): 704-709 https://doi.org/10.15980/j.tzzz.2023.05.023

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