摘要
通过铝合金重力浇注实验,针对离心集渣包式浇注系统,对充型和凝固过程中渣粒的运动轨迹进行仿真,并通过实验对仿真模型的可靠性进行了验证。在此基础上设计了9种不同形态的离心集渣包式浇注系统并进行挡渣模拟,以探索离心集渣包式浇注系统形态变化对铸件夹渣行为的影响。结果表明:浇注系统形态的变化对其挡渣率的影响很大,且当旋转方向系数f=-1时,则浇道角度=270°挡渣率较高;当旋转方向系数f=1时,则浇道夹角=180°挡渣率较高。
Aiming at the pouring systems of centrifugal slag-inclusive ladder of the movement trail slag particle in filling and solidification process was simulated in aluminum alloy gravity casting experiment, and the reliability of the model was verified by experiment. On the basis of the above, nine kinds of the pouring systems of centrifugal slag-inclusive ladder were designed and the effects of slag removal were simulated to explore the effect of different form＇s pouring systems on slag inclusion behavior of casting. The results show that the change of pouring system form has great influence on slag-stopping rate. When the direction of rotation factor f=-1 and the runner angle =270°, the slag-stopping rate is higher. On the contrary, when the direction of rotation factor f =1 and the runner angle =180°, the slag-stopping rate is higher.
出处
《铸造技术》
CAS
北大核心
2015年第7期1809-1812,共4页
Foundry Technology
关键词
夹渣
离心浇道
挡渣率
数值模拟
slag inclusion
centrifugal pouring system
slag-stopping rate
numerical simulation
