Based on an orthogonal experimental design and signal-to-noise ratio analysis,the effects of three process parameters-casting temperature,mold preheating temperature and mold filling time-on casting quality in low-pressure casting were investigated,and a set of standardized process design parameters using shrinkage rate and shrinkage pore volume,solidification time and secondary dendrite interval as evaluation indicators were explored.A set of standardized process design parameters was investigated as an important reference for the study and practical application of a low-pressure casting process for aluminum alloy battery end plates for new energy vehicles.The results showed that the casting temperature of 690 ℃,the die preheating temperature of 330 ℃ and the filling time of 8s resulted in no shrinkage or shrinkage of the castings,the smallest secondary dendrite spacing and the shortest solidification time.
关键词
电池端板/低压铸造/正交试验/信噪比/工艺优化
Key words
battery end plate/low pressure casting/orthogonal test/signal to noise ratio/process optimization