METHOD FOR CASTING ALUMINUM CYLINDER BLOCK

摘要

PURPOSE: A method for casting aluminum cylinder block is provided to improve quality of the cylinder block by casting the cylinder block after inserting core into mold and integrally installing liner at the mold when casting aluminum cylinder block using low pressure casting, thereby shortening postprocess and increase mounting accuracy of the liner. CONSTITUTION: The method comprises a mold installation process (S110) for installing consisting of upper mold and lower mold on a low pressure caster; a core and liner inserting process (S120) of simultaneously fixing the water jacket core and the oil passage core with core print by inserting water jacket core and oil passage core into the lower mold of the mold and uniting the upper mold with the lower mold after inserting cast iron liner into bore pin of the upper mold; a molten metal injection process (S130) injecting molten metal into cavity of the mold by operating the low pressure caster; a cooling process (S140) of cooling the molten metal for a certain period of time to harden molten metal filled in the cavity of the mold; a product extracting process (S150) of extracting the cylinder block by respectively separating the upper mold and lower mold and stripping cast aluminum cylinder block from the mold if the molten metal filled in the cavity of the mold is cooled; a cooling transfer process (S160) of transferring the cylinder block to a processing plant as cooling the aluminum cylinder block extracted from the mold through a cooling conveyor; and a processing process (S170) of processing cast iron liner and cylinder block integrally cast on respective bore parts of the aluminum cylinder block transferred to the processing plant through the cooling transfer process.