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Casting process design and practice for coolant pump impeller in AP1000 nuclear power station
Zhao, Ping1; Liu, Zhong-li2; Wang, Gui-quan2; Liu, Peng3
Corresponding AuthorLiu, Zhong-li(liuzhongli@ytu.edu.cn)
2020-03-01
Source PublicationCHINA FOUNDRY
ISSN1672-6421
Volume17Issue:2Pages:173-177
AbstractThe coolant pump impeller casting is the only rotating component in the nuclear island of an AP1000 nuclear power station, and is required to have a 60-year service time, which requires advanced materials and processing technologies to guarantee. In this paper, the casting process was studied, designed and modifed by means of numerical simulation. The gating system was distributed symmetrically and the runner diameter was a little bigger for avoiding sand wash and turbulence; the feeding system focused on the solution of blades feeding, as some parts of which should reach Severity Level 1 radioactive testing standard. Therefore, upper and lower plates cooperating with chillers acted as feeding method besides additional 2-3 times thickness; in addition, lowering sand core strength, decreasing pouring temperature and increasing dimension allowance would be adopted to avoid crack defects. Finally, the pilot impeller was cast. The results show that the casting process design is reasonable, as the liquid rises very smoothly when pouring, and no volume defects are found by means of 100% radioactive testing. Based on this casting process, 16 coolant pump impellers have been successfully produced and delivered to customers.
KeywordAP1000 coolant pump impeller casting process TG142 71 A
DOI10.1007/s41230-020-9164-9
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000529360400011
PublisherSPRINGER SINGAPORE PTE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138617
Collection中国科学院金属研究所
Corresponding AuthorLiu, Zhong-li
Affiliation1.Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266044, Peoples R China
2.Yantai Univ, Sch Nucl Equipment & Nucl Engn, Yantai 264005, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Ping,Liu, Zhong-li,Wang, Gui-quan,et al. Casting process design and practice for coolant pump impeller in AP1000 nuclear power station[J]. CHINA FOUNDRY,2020,17(2):173-177.
APA Zhao, Ping,Liu, Zhong-li,Wang, Gui-quan,&Liu, Peng.(2020).Casting process design and practice for coolant pump impeller in AP1000 nuclear power station.CHINA FOUNDRY,17(2),173-177.
MLA Zhao, Ping,et al."Casting process design and practice for coolant pump impeller in AP1000 nuclear power station".CHINA FOUNDRY 17.2(2020):173-177.
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