Manufacturing method of inorganic sand core of motorcycle cylinder head

The invention relates to the technical field of sand cores, in particular to a manufacturing method of an inorganic sand core of a motorcycle cylinder head. Comprising the following steps: adding artificial sand, a binder water base and a sub-nano curing agent into inorganic sand core equipment; the artificial sand is dedusted and then is stirred and mixed with the binder water base and the sub-nano curing agent; the inorganic sand core equipment adopts double sand shooting heads to shoot sand into the two sand core molds at the same time; after the sand core in the sand core mold is formed, demolding is conducted, and the motorcycle cylinder head inorganic sand core is manufactured; three basic materials are mixed, the mesh number of the artificial sand is 70-140, the artificial sand comprises 100% of sand, 2.33% of a binder water base and 1% of a sub-nanometer curing agent, and the property of the artificial sand is alkaline PH 13; the inorganic sand core is adopted to replace a furan resin precoated sand c