Patent ID: 8069901
Filing Date: 2011-12-06
Classification: B22D,Y10T

Abstract:
1. A cylinder block manufacturing method comprising: providing a first die that forms a portion of a deck surface molding cavity of a cylinder block molding cavity; providing a second die that forms a portion of a crank chamber molding cavity of the cylinder block molding cavity; providing a liner support including a shaft section and a pressing section that protrudes from the shaft section in a step-like manner so as to have a larger diameter than the shaft section for forming a liner overcast configuration; determining whether a temperature of the first and second dies is higher than a prescribed temperature; preheating the first and second dies to the prescribed temperature, when it is determined that the temperature of the first and second dies is not higher than the prescribed temperature, by manufacturing the cylinder block, when it is determined that the temperature of the first and second dies is higher than the prescribed temperature, by