Improving Functional Parameters for Pressure Casting Machine with High Degree of Finishing

  • Stefan DRAGOMIR "Dunarea de Jos" University of Galati, Romania
  • Marian NEACSU "Dunarea de Jos" University of Galati, Romania
  • Marian BORDEI "Dunarea de Jos" University of Galati, Romania
Keywords: casting machine, permanent mould, hydraulic action, molten alloy, variable cylinder

Abstract

The paper presents a mathematic model of static and dynamic characteristics for casting machine. This machine has a hydraulic action for the casting chamber (her closing and introducing of molten alloy). This action is made by use an axial piston pump with the variable cylinder with pressure regulator. The mathematic model of how the injection pump functions (for molten alloy) can do by a computer simulation. This kind of approach for the study problem leads to the identification of key parameter and malfunction of these hydraulic parts. The malfunction simulation for the important work parameters (hydraulic force necessary to push the molten alloy in the shell, pressure compensated flow controls the strength to close the two rooms where the molten alloy is sent) show permanently the operator the place where a damage is produce and it is necessary his intervention.

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References

[1]. Degarmo, E. Paul; Black, J T., Kohser, Ronald A., Materials and Processes in Manufacturing (9th ed.), 2003, Wiley.
[2]. Rosato, Donald V. And Rosato Dominik V- Injection Molding Handbook 2nd .Ed.Chapman and Hall, 1995, New York.
[3]. Herman, E.A. Die Casting Process Engineering and Control, North American. Die casting Association, 2005.
[4]. Frecker, Michael M The Use of Variable Speed Drives for Injection Molden Machine. Master Thesis-University of Massachusetts, 2006, U.S.A.
Published
2009-05-15
How to Cite
1.
DRAGOMIR S, NEACSU M, BORDEI M. Improving Functional Parameters for Pressure Casting Machine with High Degree of Finishing. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15May2009 [cited 26Dec.2024];32(1):52-7. Available from: https://gup.ugal.ro/ugaljournals/index.php/mms/article/view/3067
Section
Articles

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