Numerical simulation of casting process to assist in defects reduction in complex steel tidal power component

In order to reduce defects and improve casting quality, ProCAST software is performed to study the solidification process of discharge bowl. Simulated results of original casting process show that the hot tearing is serious at the intersection of blades and outer or inner rings. The shrinkage porosi...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 117; no. 1; pp. 12037 - 12043
Main Authors Guo, E J, Zhao, S C, Wang, L P, Wu, T, Xin, B P, Tan, J J, Jia, H L
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2016
Subjects
Casting
Casting defects
Chill casting
Chills
Computer simulation
Defects
Discharge
Iron and steel making
Porosity
Shrinkage
Solidification
Tearing
Tidal energy
Tidal power
Wall thickness
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Summary:In order to reduce defects and improve casting quality, ProCAST software is performed to study the solidification process of discharge bowl. Simulated results of original casting process show that the hot tearing is serious at the intersection of blades and outer or inner rings. The shrinkage porosity appears at the bottom of discharge bowl and the transition area of wall thickness. Based on the formation mechanisms of the defects, the structure of chills attached on the outer surface of discharge bowl casting is optimized. The thickness of chills ranges from 25mm to 35mm. The positions of chills corresponded to the outer surface of the T-shaped parts. Compared to the original casting design (without chills), the hot tearing and shrinkage porosity of the discharge bowl are greatly improved with addition of chills.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/117/1/012037