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Design and calculation of casting head for high strength stainless steel centrifugal impeller(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2015年04期
Page:
90-94
Research Field:
工艺与材料
Publishing date:

Info

Title:
Design and calculation of casting head for high strength stainless steel centrifugal impeller
Author(s):
JI Yanqing;  CHEN Pengrong
Xi’an Space Engine Factory, Xi’an 710100, China
Keywords:
modulus methodcasting head designhotspot circlefeeding capacity
PACS:
V434.2-34
DOI:
-
Abstract:
As the key part of LOX/kerosene engine turbopump for heavy launch vehicles, the centrifugal impeller is made of high strength stainless steel S-04 with complicated structure. When centrifugal impeller rotates at high speed, blade surfaces contact directly with the fuel, bearing high loads, which results in the high requirements of its dimension precision and internal quality. Therefore, investment casting was chosen for centrifugal impeller production. In order to prevent shrinkage cavity and porosity at casting hotspots, the casting head needs to be properly designed to guarantee casting quality. The centrifugal impeller casting head was designed and calculated via modulus method to check the casting head feeding capacity, ensuring enough molten metal to feed the casting. The produced centrifugal impeller casting was of high quality with practical and reliable casting head and effective feeding of casting hotspots. It's proved that the process plan for centrifugal impeller is proper and effective. The design and calculation accuracy of

References:

[1]王春欢, 胡红军, 罗静. 基于Procsat软件的熔模铸造计算机模拟[J]. 铸造技术, 2007, 28(10): 1360-1362.
[2]秦宝荣, 王军锋, 范金桃. 碎纸刀熔模铸造充型凝固过程数值模拟[J]. 特种铸造及有色合金, 2010, 30(6): 533-5+94.
[3]方圆, 周吉祥, 于赟, 等. 耐热钢排气歧管熔模铸造的工艺优化[J]. 特种铸造及有色合金, 2013, 33(6): 539-542.
[4]李先民. 冒口的优化设计[J]. 四川轻化工学院学报, 2002, 15(3): 37-40.

[5]丛伟. 模数法在铸钢件冒口设计中的应用[J]. 沈阳航空工业学院学报, 2002, 19(4): 17-19.

[6]李魁盛. 铸造工艺及原理[M]. 北京: 机械工业出版社, 1989.
[7]HINE R W. Principles of metal castings[M]. 2nd ed. New York: MeGraw-Hill, 1967.
[8]王文清, 李魁盛. 铸造工艺学[M]. 北京: 机械工业出版社, 2002.
[9]魏兵, 袁森, 张卫华. 铸件均衡凝固技术及其应用[M]. 北京: 机械工业出版社, 1998.
[10]连炜, 朱延令, 魏兵. 抽油机曲柄铸铁件浇冒口系统当冒口的工艺设计[J]. 铸造技术, 2007, 28(5): 582-584.

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