Aluminum alloy for vehicle cylinder liner and method of manufacturing vehicle cylinder liner using the same
US8122941B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 7, 2009 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Dec 7, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C21/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is directed to an aluminum alloy including aluminum as a basic component, silicon, copper, magnesium, iron, manganese, zinc, nickel and the like in a predetermined composition ratio, and a method of manufacturing of a vehicle cylinder liner having excellent wear resistance and heat resistance using the aluminum alloy.The method of manufacturing a vehicle cylinder liner includes the steps of: adding 50˜500 ppm of phosphorus (P) to the aluminum alloy while maintaining a temperature of the aluminum alloy at 700˜800° C. in a holding furnace, stabilizing the molten aluminum alloy including the phosphorus (P) for 30˜60 minutes to reform the molten aluminum alloy, and then continuous-casting the reformed molten aluminum alloy to form a round bar; hot-forging the round bar to forming a cylindrical liner; and machining an internal surface of the cylinder liner, with which a reciprocating piston comes into contact, to allow silicon particles to protrude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.