Experimental and Theoretical Investigation of Air-Gap Formation and Interface-Resistance During Metal Casting in Metal Molds

这个项目的目的是确定由于铸件开始冷却时，模具表面和凝固金属之间形成气隙而产生的传热阻力。将模拟由于收缩和蠕变引起的热应力，以及由于接触表面之间或通过薄层润滑膜传导、通过接触粗糙处的部分传导以及通过气隙的辐射而产生的热传递。模型研究将与在工业测试实验室与工业研究人员合作进行的实验工作密切结合起来。

This project is aimed at determining the heat transfer resistance which develops due to formation of an air gap between the mold surface and the solidifying metal as a cast metal begins to cool. The thermal stresses due to the contraction and their relaxation due to creep will be modeled, as will the heat transfer due to conduction between contacting surfaces or through thin lubricating films, partial conduction through contacting asperities , and radiation across the air gap. The model studies will be coupled closely with experimental work performed in collaboration with industrial researchers at an industrial test laboratory.