Producing cylinder crankcase comprises preparing water jacket core and web region, placing water jacket core and web region in mold, filling mold with molten metal, sampling and removing water jacket core and web region from crankcase

摘要

Producing a cylinder crankcase (10) comprises: preparing a water jacket core and at least one web region (18) of the water jacket core, which is used to form a coolant jacket (14) between the cylinders (12); placing the water jacket core (16) and at least one web region in a mold; filling the mold with a molten metal; sampling the cylinder crankcase from the mold; removing the water jacket core and at least one web region from the cylinder crankcase, in which at least one web portion of the water jacket core infiltrates with a binder and is mechanically machined to reduce its width.