To form an inclined alloy on a boundary face between an inner layer and an outer layer of a cylinder liner material so as to prevent the occurrence of peeling on the boundary face by centrifugally casting by using alloy molten metal obtained by adding a metal which is separated into two phases for a base material made of cast iron or cast steel into the base material by a solid melting limit amount or more.
This cylinder liner material 1 is produced by centrifugally casting by adding a metal which is separated into two phases for a base material made of cast iron and has higher specific gravity than the base material into the base material by a solid melting limit amount or more. it has a double layer structure in which the base metal is an inner layer and the metal is an outer layer, and a boundary face between the inner layer and the outer layer is made of an alloy in which the metal is melted in the base material. That is, the cylinder linear materials 1 having the double layer structure in which the composition of the outer layer and inner layer differ in such a manner that the inner layer is the cast iron layer 2 and the outer layer is the Cu layer 3 by centrifugally casting alloy molten metal obtained by adding Cu of the solid melting limit amount or more to cast iron. As a result, the cylinder liner material 1 can attenuate the transmission of sound and vibration to the outside of a cylinder.
ITAYA MITSUHIKO
TSUJIMURA AKIRA
SHIOTANI EIJI
KOIKE ASAO
MOTOYOSHI MASATO
Next Patent: CYLINDER BLOCK OF INTERNAL COMBUSTION ENGINE