Heating Analysis and Temperature Control of Spiral Sand Core Box for Water-Cooled Housing

Based on the shape characteristics of spiral sand cores used in low-pressure casting processes of aluminum alloy housings for electric vehicles, and instead of using two half-circle sand cores and then re-assembling the cores into a full-circle one, we designed and developed a spiral core box structure for forming an integral core. This improved the production efficiency and dimensional accuracy of the sand core. According to the characteristics of the forming process based on coated sand, we performed thermal analysis on the heating process of the core box. We used programmable logic controller technology to accurately control the process parameters, such as the core temperature, to ensure that the sand core was balanced, heated, and cured in a suitable temperature range and for an adequate amount of time to improve the strength and quality of the formed sand core.