The hot chamber die casting process is capable of producing castings of superior mechanical properties and internal integrity. However, this process cannot be used for die casting of aluminum alloys because the molten aluminum erodes ferrous alloy tooling such as the gooseneck. Ceramic gooseneck was tested, but was not accepted commercially. This work evaluates the feasibility of using refractory metals for the tooling of the hot chamber die casting process. Experiments were performed to measure the weight loss of selected materials in molten aluminum at die casting temperatures. Refractory metals with excellent aluminum erosion resistance were selected and used for making gooseneck and nozzle. These components were installed in a hot chamber die casting machine. The world’s first hot chamber die casting machine equipped with refractory metal tooling is now running at Purdue University for making aluminum alloy castings.

热室压铸工艺能够生产出具有优异机械性能和内部完整性的铸件。但是，该方法不能用于铝合金的压铸，因为熔融的铝会腐蚀诸如鹅颈的铁合金工具。测试了陶瓷鹅颈管，但在商业上不被接受。这项工作评估了在热室压铸工艺中使用难熔金属的可行性。进行实验以测量压铸温度下熔融铝中所选材料的重量损失。选择具有优异的耐铝侵蚀性的难熔金属，并将其用于制造鹅颈和喷嘴。这些组件安装在热室压铸机中。