梯度石墨铸铁玻璃模具液态模锻模拟与仿真  

Squeeze casting simulation of gradient graphite cast iron glass mold based on procast

作　　者：邢书明[1] 王卓群 吴毅 张胜德 XING Shuming;WANG Zhuoqun;WU Yi;ZHANG Shengde(School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100044,China;Hebei Andy Mould Co.,Ltd.,Cangzhou 061100,China)

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044 [2]河北安迪模具有限公司,河北沧州061100

出　　处：《常州大学学报（自然科学版）》2023年第2期1-9,共9页Journal of Changzhou University：Natural Science Edition

摘　　要：为解决传统砂型铸铁玻璃模具铸件工艺出品率低、缩孔缩松等问题,采用液态模锻工艺成型,通过不同的冷却条件实现铸件石墨形态呈梯度分布。利用Procast对液态模锻过程的温度场和凝固场模拟,对缩孔缩松缺陷进行了预测,对浇注温度、冷却方式、浇口尺寸等关键工艺参数进行了调整优化,并根据热分析观点对铸件不同部位组织进行预测。结果表明,液态模锻可以有效减少缩孔缩松等铸造缺陷。In order to solve the problems of low yield and easy shrinkage cavity and porosity in the traditional sand casting process of cast iron glass mold,the liquid die forging process was adopted,and the graphite shape of the casting was distributed in gradient by different cooling conditions.The temperature field and solidification field of liquid die forging process were simulated by Procast,shrinkage cavity and porosity defects were predicted,and the key process parameters such as pouring temperature,cooling mode and gate size were adjusted and optimized,and the microstructure of different parts of the casting was predicted according to the view of thermal analysis.The results show that liquid die forging can effectively reduce shrinkage defects.

关 键 词：玻璃模具 蠕墨铸铁 液态模锻 数值模拟 

分 类 号：TG316.3[金属学及工艺—金属压力加工]