Method for making cast iron engine blocks and the like

Details Method for making cast iron engine blocks and the like Method for making cast iron engine blocks and the like

B - Operations, Transporting

22

D

22/166

B22D 35/06 (2006.01) C21C 1/08 (2006.01) C22C 37/08 (2006.01)

Patent

CA 1185765

METHOD FOR MAKING CAST IRON ENGINE BLOCKS AND THE LIKE ABSTRACT OF THE DISCLOSURE A method for making grey iron castings hav- ing as a cardinal feature that the molten grey iron, after being made and prior to being poured into the molds, is maintained for a period of from one and one-half to two and one-half hours, preferably about two hours, at a substantially constant temperature. The resulting greatly increased homogeneity and temperature uniformity of the molten metal throughout its mass greatly improves the quality and quality control of the castings made.

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