Paper Titles
Acoustic Insulation of Panels Made from Recycled Plastics and Resin
p.61
From the Maxwell’s Equations of Lattice Deformations to the Description of the Universe by a « Crystalline Ether »
p.81
Dynamics of Full Skyrmions in a Chiral Liquid Crystal
p.133
Optimization Studies on Machining of Boron Nitride Reinforced with Al Hybrid Composite in WEDM Process Using Taguchi – Dear Based Optimization
p.151
Design and Manufacturing of Defect-Free PumpCasings: A Numerical and Experimental Approach
p.157
Development and Validation of a Cost-Effective Rotary Friction Welding Machine by Repurposing a J23 Mechanical Press Frame
p.163
Theoretical and Analytical Methods for Determining Heat Transfer Coefficients in Evaporation Processes
p.171
Selecting Thermal Pipe Insulation via Discrete Optimization
p.181
Experimental Investigation and Effective Numerical Modeling of Heat Transfer in Phase Change Materials
p.193

Design and Manufacturing of Defect-Free PumpCasings: A Numerical and Experimental Approach

Article Preview

Abstract:

Internal shrinkage defects often occur in sand-cast gray cast iron pump casings, particularly in areas with abrupt thickness variations where heat dissipation is limited. These defects form during the final stage of solidification when isolated liquid metal cannot be properly fed. In this study, the solidification behavior of an industrial pump casing is investigated through coupled thermal–flow simulation to analyze temperature gradients and feeding paths. The results show that delayed solidification at the flange–root junction leads to isolated liquid zones that develop into shrinkage cavities. By modifying the feeding layout, heat extraction and directional solidification toward the riser are improved. Experimental casting with the optimized design shows no visible shrinkage defects and achieves an average hardness of 42.3 HRA. These findings highlight the importance of maintaining solidification continuity to eliminate defects in gray cast iron pump casings [1].

You might also be interested in these eBooks
Functional Materials and Processing Technologies, Condensed Matter Physics and Thermal Engineering View Preview

Info:

Periodical:

Key Engineering Materials (Volume 1062)

Pages:

157-162

DOI:

https://doi.org/10.4028/p-pb2UYW

Citation:

Cite this paper

Online since:

August 2026

Authors:

Nguyen Dang Khoa, Tran Ba Trung Nam, Pham Quang Trung*

Keywords:

Cast Iron Casting, Industrial Pump Casing, Shrinkage, Simulation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2026 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] Nguyen Phuc Nhat Minh, Pham Quang Trung. "Chapter 16 Integrated Simulation and Validation Method for Defect Free Sand Casting of Industrial Four-Way Valve Bodies", Springer Science and Business Media LLC, 2026.

DOI: 10.1007/978-3-032-11791-5_16

Google Scholar

[2] Karassik, I. J., Messina, J. P., Cooper, P., & Heald, C. C. (2001). Pump Handbook. McGraw-Hill.

Google Scholar

[3] SO. (2015). ISO 185:2015 – Grey cast irons — Classification. International Organization for Standardization.

Google Scholar

[4] M.Z. Seydani, A. Krimi, S. Khelladi, M. Bedel, and M. El Mansori, "3D numerical simulation and experimental validation of resin-bonded sand gravity casting: Filling, cooling, and solidification with SPH and ProCAST approaches," Thermal Science and Engineering Progress, vol. 47, p.102329, 2024.

DOI: 10.1016/j.tsep.2023.102329

Google Scholar

[5] E. Mitin, S. Sul'din, and V. Keldunova, "Simulation of Casting by Means of ProCAST Design Software," Russian Engineering Research, vol. 43, no. 7, pp.815-817, 2023.

DOI: 10.3103/s1068798x23070201

Google Scholar

[6] Groover, M. P. (2019). Fundamentals of Modern Manufacturing: Materials, Processes, and Systems. Wiley, 816.

Google Scholar

[7] Srivastava, M., Rathee, S., Maheshwari, S., & Kundra, T. (2019). Additive Manufacturing: Fundamentals and Advancements (1st ed.). CRC Press.

DOI: 10.1201/9781351049382

Google Scholar

[8] A. Aripov, B. Vokhidov, A. Asrorov, F. Sayfullaev, and M. Kurbonov, "Application of sand mold casting modelling for casting pump volute." p.012037.

DOI: 10.1088/1742-6596/2697/1/012037

Google Scholar