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基于实型铸造数值计算的制动铸件 工艺设计与调控
Process Design and Regulation of Brake Casting Based on Real Casting Numerical Calculation
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- DOI:
- 作者:
- 杜尊重 1 ，徐 哲 2 ，时 晓 2 ，陈 烜 1 ，袁岳东 1 ，张国群 1 ，刘 琨 1 ，陈正2
DU Zunzhong1 , XU Zhe2 , SHI Xiao2 , CHEN Xuan1 ,YUAN Yuedong1 , ZHANG Guoqun1 , LIU Kun1 , CHEN Zhe
- 作者单位:
- 1. 常熟天地煤机装备有限公司，江苏 常熟 215500；2. 中国矿业大学 材料学院，江苏 徐州 221008
- 关键词:
- 制动用蝶阀；消失模铸造；数值模拟；铸造缺陷
exhaust brake valve; lost foam casting; numerical simulation; casting defects
- 摘要:
- 本文采用消失模铸造方法，提出针对排气制动用蝶阀合理的铸造工艺方案。 基于 ProCAST 软件对阀体消
失模铸造工艺进行模拟，研究阀体铸件在充型、凝固过程中的流动、温度场、固相率分布和缺陷分布，并根据模拟结果优
化工艺。 结果表明，改进浇注系统后铸件的缩松及缩孔缺陷得到有效控制，缺陷体积减少 42%以上。 通过铸造模拟有效
指导了排气制动用蝶阀的生产实践，优化了生产工艺，节约了生产成本。
Taking butterfly valve for exhaust brake as the research object, through the analysis of the shape, structure and material of valve body, a reasonable casting process scheme was put forward by using lost mold casting method. Numerical simulating of the valve precision casting process was conducted based on the ProCAST software. The flow, temperature field, solid rate distribution and defect distribution of the valve casting during mold filling and solidification were studied, and the process was optimized according to the simulation results. The results show that the defects of shrinkage cavity and porosity are effectively controlled and the volume of defects is reduced by more than 42% after improvement of casting system. Through casting simulation, the production practice of butterfly valve for exhaust brake is effectively guided, optimizing the production process and also saving the production cost