The application of inorganic sand can effectively improve the dust problem in the casting process.Based on the analysis of EN31 aluminum alloy cylinder head structure and the manufacturability of inorganic sand core,combined with the production conditions and development costs of enterprises,the design and application of aluminum alloy gravity tilting inorganic sand core box were studied and verified.Through the design and optimization of the core box nozzle,heating oil circuit,module and other systems,and for the complex structure of the oil pool sand core and riser sand core,cross oil circuit and diaphragm oil circuit design were adopted to solve the problem of uneven heating of the mold island.The trial production verification showed that the mechanical properties of the inorganic sand core met the requirements of the aluminum alloy cylinder head casting process,providing a reference for the development and trial production of similar products.
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