摘要
针对电动汽车铝合金机壳低压铸造过程中所使用的螺旋水道整体砂芯形状特征,改变分开二部分射砂成形再装配组合成整圈砂芯的工艺方法,设计开发出一次性射芯成形的螺旋砂芯芯盒,提高砂芯的生产效率和尺寸精度;同时根据特殊的螺旋砂芯芯体结构,设计出三方向开模的整体砂芯射芯机,并运用PLC进行温度控制及各部件运动精确控制,保证射芯过程中各芯体之间温度平衡稳定,芯盒开合动作准确无误,且固化过程温度均衡,从而提高砂芯成形的效率和质量。
In view of the shape characteristics of integral core of spiral channel used in low pressure casting of aluminium alloy shell of the electric vehicle, the previous method of forming whole circle sand core by separate two-part sand-shooting and reassembly is changed, and the structure of spiral sand core box formed by one-time core-shooting is designed and developed to improve the production efficiency and dimensional accuracy of the sand core. At the same time, according to the special structure of spiral sand core body, the whole sand core shooter with three-direction opening molds is designed, the temperature control and the precise motion control of each component are carried out by PLC to ensure the temperature balance and stability between the cores during the core shooting process, and also ensure the accurate opening and closing action of the core box and the temperature balance in the curing process, so as to improve the efficiency and quality of sand core forming.
作者
陈宇姗
韩伟
刘楚生
潘健怡
CHEN Yu-shan;HAN Wei;LIU Chu-sheng;PAN Jian-yi(Engineering Training Center,Guangzhou College of South China University of Technology,Guangzhou 510800,Guangdong,China)
出处
《铸造》
CAS
北大核心
2019年第11期1261-1265,共5页
Foundry
关键词
螺旋水道
整体砂芯
射芯机
触摸屏
PLC控制
spiral waterway
integrated sand core
core shooting machine
touch screen
PLC control
