Cgi cast iron and production method for the same

US20120301346A1Inactive Publication Date: 2012-11-29DOOSAN INFRACORE CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
DOOSAN INFRACORE CO LTD
Publication Date
2012-11-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to cast iron, and more particularly, to a compacted graphite iron (CGI) cast iron having an improved casting property, stable tensile strength and yield strength, and hardness in an appropriate range, by being produced with the amounts of carbon (C), silicon (Si), manganese (Mn), copper (Cu), tin (Sn), and magnesium (Mg) controlled, and a production method thereof.
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Description

TECHNICAL FIELD

[0001] The present invention relates to cast iron and a method of producing the same, and more particularly, to cast iron having an improved casting property and stable tensile strength and yield strength by controlling the contents of components added to iron, and a method of producing the cast iron. Cast iron according to the present invention corresponds to hypereutectic compacted graphite iron (CGI) cast iron that can be applied to the cylinder block of diesel engines with high output.TECHNICAL FIELD

[0002] Recently, it is required to reduce the contents of environmental pollutants such as Cox or NOx discharged from engines due to strictly enforced environmental regulation.

[0003] For diesel engines, it is necessary to increase the explosive pressure of the engines in order to reduce the exhaust amount of environmental pollutants such as Cox or NOx. It needs to increase the strength of the cylinder block of the engines in order to increase the explosive pressure of the...

Claims

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