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Solidificaiton Simulation of Spent-nuclearfuel Container of Spheroidal Graphite Cast Iron

Author: ZhouXue
Tutor: WangLiPing
School: Harbin University of Science and Technology
Course: Materials Science
Keywords: Ductile iron PROCAST Numerical Simulation Ball of recession
CLC: TG248
Type: Master's thesis
Year: 2011
Downloads: 74
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Abstract


In this paper, PROCAST software numerical simulation of nuclear spent fuel container of ductile iron castings solidification process , and to investigate its process improvement . The casting process of the program does not use any forced cooling measures , results show that the nuclear spent fuel container castings of ductile iron solidification time 84141s , the solidification time is very long , the ball of the recession is extremely serious ; program in ductile iron nuclear spent fuel container casting set a reasonable cold iron solidification simulation , the solidification time of the casting 10602s coagulation time compared to a 87% reduction in program , so cold iron added can effectively shorten the solidification time of the casting , but the program analog results are still unable to achieve the requirements of the experiment ; program for the deficiencies of the program , the center of the casting set a reasonable cooling water pipe after solidification simulation results show that the solidification time of the casting 10409s Although the program compared to programs clotting time has been reduced, but only in the central part of the new cooling pipes difficult to effectively reduce the solidification time of the casting position of the center of the upper part of the casting for the final solidification area , this location there is a slight ball of recession ; program on the basis of the program , the optimization of the water cooling process , the cooling water pipe is added to the outside of the upper part of the casting , and the solidification process simulation , the solidification time of the casting of 7167s , the casting can be completely solidified within the required time , to avoid the ball recession on the microstructure and properties of ductile iron castings of nuclear spent fuel container . By using PROCAST software to simulate the different forced cooling ductile iron nuclear spent fuel container solidification process , and the process is reasonable forecast of process optimization , finally got a reasonable casting process .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Casting > Casting process > Casting production process automation
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