Diesel engine four-valve cylinder head gravity casting die and casting method thereof

The invention discloses a diesel engine four air gate head gravity casting mold and its molding method. It uses center heater for warming appearance mold to making the mold warming rapidly and temperature uniform. It uses the head external form mold structure which combines the water cool and air cool to making the whole mold forming the reasonable temperature field of aluminum alloy order consolidation. It uses converter-type adjustable flow, pouring cup of casting and slaging at the same time, ensures the quality of castings, and raises the productivity. It uses the design of four-direction open mode cylinder head integral water sand core mold, the quality of castings in integral water sand core is good, and it is time-saving, labor-saving and easy to opening mold. The mold and methods in the invention can be used for diesel engine four air gate head gravity casting process.