In the continuous low-pressure casting process of aluminum alloy water-cooled shell of electric vehicle

the change of spiral sand core in the mold cavity after mold closing is not visible

and the casting defects caused by spiral sand core damage are difficult to be tracked and controlled. A low pressure casting product quality control tracking system based on intelligent information technology was proposed

which were composed of three parts: character recognition and two-dimensional bar code generation

spiral sand core process record control and spiral sand core quality tracking. Through information technology

a unique bar code was set in the sand core manufacturing stage

and the manufacturing process of spiral sand core was recorded and controlled in real time based on the bar code information data. The performance parameters of sand core molding were connected with low-pressure casting parameters such as mold filling pressure and pressurization speed during low-pressure casting to form a closed-loop quality tracking system in order to optimize and improve the production processes with hidden dangers in the quality of low-pressure casting products in time

aiming to improve the overall quality of low-pressure casting products.