A method of die casting an iron alloy reinforced aluminium alloy engine block for an internal combustion engine and an engine block die cast according to the method

摘要

A method of high pressure die casting in iron alloy reinforcements for main bearing scantlings in an aluminum alloy engine block for an internal combustion engine. Prior to casting, reinforcements (1) having bores (6) for main bearing screws are placed in a die cavity (21), so that cores for main bearing screws protrude into the bores in each reinforcement on one side of the reinforcement. Then the reinforcements are fixed in the die cavity by placing a cylinder liner core (25) against a surface (27)of the reinforcement on the opposite side of the reinforcement.