城轨铝合金制动盘成形仿真和缺陷预测  

Forming Simulation and Defection Forecast of Aluminum Alloy Brake Disc for Urban Express Rail Vehicles

作　　者：王朝涛 杨智勇[2] 张雄飞 赵海芹 韩建民[2] WANG Chao-tao;YANG Zhi-yong;ZHANG Xiong-fei;ZHAO Hai-qin;HAN Jian-min(CRRC Qingdao Sifang Corporation Limited,Qingdao 266111,Shandong,China;School of Mechanical,electronic and control engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]中车青岛四方机车车辆股份有限公司,山东青岛266111 [2]北京交通大学机械与电子控制工程学院,北京00044

出　　处：《铸造》2020年第4期412-417,共6页Foundry

基　　金：下一代城市轨道交通列车关键技术及装备研制(2015BAG12B00)。

摘　　要：发展城轨列车是缓解城市交通拥堵的重要途径。列车运行速度提高到120 km/h以上时,传统的闸瓦-车轮踏面制动已不能满足列车制动的要求。针对140~160 km/h城轨列车用SiC_p/A356复合材料制动盘,利用ProCAST凝固模拟软件对制动盘的真空调压成形工艺进行仿真分析,基于流场、缩孔缩松、凝固时间及固相率等模拟结果,确定了制动盘内部成形质量良好的浇注系统和浇注工艺参数,成形了内在质量完好的SiC_p/A356制动盘。An important way to alleviate the urban traffic congestion is to develop urban rapid rail. When the train’ speed is increased to 120 km/h or more, the traditional tread braking already cannot satisfy the requirement of train braking. Aimed at aluminum alloy brake disc used in 140~160 km/h urban express rail vehicles, ProCAST, a kind of solidification simulation software, was used to simulate the vacuum adjustable pressure casting of the brake disc. Based on the simulation results of flow field, shrinkage porosity, solidification time and solid fraction, casting system and pouring process parameters were determined, by which some SiC_p/A356 brake discs with an internal good quality were fabricated.

关 键 词：SiC_p/A356制动盘 真空调压成形 成形工艺 X射线探伤 数值模拟 

分 类 号：TG245[金属学及工艺—铸造]