ZG16Mn制动底板挤压铸造的数值模拟

郭莉军; 邢书明

doi:10.15980/j.tzzz.2012.10.016

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ZG16Mn制动底板挤压铸造的数值模拟
Numerical Simulation of Filling Processes of Squeeze Casting ZG16Mn Brake Bottom Plate
2012年32卷第10期页码：916-919
纸质出版日期： 2012 ，
DOI： 10.15980/j.tzzz.2012.10.016

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[1]郭莉军,邢书明.ZG16Mn制动底板挤压铸造的数值模拟[J].特种铸造及有色合金,2012,32(10):916-919.

Guo Lijun, Xing Shuming. Numerical Simulation of Filling Processes of Squeeze Casting ZG16Mn Brake Bottom Plate[J]. Special Casting & Nonferrous Alloys, 2012,32(10):916-919.
[1]郭莉军,邢书明.ZG16Mn制动底板挤压铸造的数值模拟[J].特种铸造及有色合金,2012,32(10):916-919. DOI： 10.15980/j.tzzz.2012.10.016.

Guo Lijun, Xing Shuming. Numerical Simulation of Filling Processes of Squeeze Casting ZG16Mn Brake Bottom Plate[J]. Special Casting & Nonferrous Alloys, 2012,32(10):916-919. DOI： 10.15980/j.tzzz.2012.10.016.

摘要

对汽车制动底板的充型及凝固过程进行了数值模拟

得到了浇注温度、挤压速度、挤压力对铸件充型完整性的影响规律。结果表明

浇注温度对充型完整性起主要作用

挤压速度与挤压力的提高可小幅度降低浇注温度。不能完整充型的主要原因是内浇道中的金属液过早的凝固

通道堵塞使压室内的金属液不能进入型腔

导致铸件出现浇不足。要得到充型完整的铸件必须保持内浇道通畅。控制浇注温度是保持内浇道通畅的主要措施。实际生产与模拟结果基本一致。

Abstract

Filling and solidification of ZG16Mn brake bottom plate for automobile were simulated by numerical simulation.Influences of pouring temperature

squeezing speed and squeezing pressure on the filling completeness were visualized.The results show that the completeness of filling is mainly controlled by pouring temperature.Pouring temperature can be slightly reduced by increasing squeezing speed and squeezing pressure.The over-fast solidification of liquid metal in ingate is responsible for imperfect filling.Because liquid metal can not enter the die cavity

the phenomenon of misrun appears.To be ensured casting with completely filling

ingate must be unobstructed.Ingate can not be obstructed by controlling the pouring temperature.The experimental results are well in agreement with the simulated ones.