Method of casting an engine block of aluminum

Details Method of casting an engine block of aluminum Method of casting an engine block of aluminum

B - Operations, Transporting

22

C

B22C 9/24 (2006.01) B22C 9/02 (2006.01) B22C 9/06 (2006.01) B22D 19/00 (2006.01)

Patent

CA 2205318

A method of casting an engine block of aluminum whose working surfaces, after milling the interiors of the cylinders, are coated with a harder metal, particularly nickel, includes inserting permanent molds in the sand mold and manufacturing the cylinder interiors of a metal which has a thermal expansion coefficient of greater than 18 x 10-6K-1.

Méthode de coulage d'un bloc-cylindres en aluminium dont les surfaces actives, après usinage de l'intérieur des cylindres, sont revêtues d'un métal plus dur, particulièrement le nickel. La méthode consiste aussi à introduire des moules permanents dans le moule en sable et à fabriquer l'intérieur des cylindres d'un métal qui a un coefficient de dilatation thermique supérieur à 18 x 10-6K-1.

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