Aluminum alloy for vehicle cylinder liner and method of manufacturing vehicle cylinder liner using the same

A technology for cylinder liners and aluminum alloys, applied to the field of aluminum alloys used for vehicle cylinder liners and the use of the aluminum alloys to manufacture vehicle cylinder liners, capable of solving problems such as size reduction, environmental pollution, and material loss

Inactive Publication Date: 2011-01-05
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, as mentioned above, in the conventional method of manufacturing aluminum cylinder liners using the spray forming method, the size of silicon can be greatly reduced; however, the process of forming a round bar is complicated, and the formed round bar must be further extruded , thus increasing its production cost
[0010] In addition, in the conventional method, material loss occurs when holes are f

Method used

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  • Aluminum alloy for vehicle cylinder liner and method of manufacturing vehicle cylinder liner using the same
  • Aluminum alloy for vehicle cylinder liner and method of manufacturing vehicle cylinder liner using the same
  • Aluminum alloy for vehicle cylinder liner and method of manufacturing vehicle cylinder liner using the same

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[0028] As described herein, in one aspect, the present invention includes an aluminum alloy for a vehicle cylinder liner, the aluminum alloy comprising: aluminum as an essential component; silicon (Si): 16-22 wt %; copper (Cu): 2 ~6wt%; Magnesium (Mg): 0.2~2.0wt%; Iron (Fe): 1wt% or less; Manganese (Mn): 0.1wt% or less; Zinc (Zn): 0.1wt% or less; and nickel (Ni): 0.1 wt % or less.

[0029] In another aspect, the present invention features an aluminum alloy for a vehicle cylinder liner, the aluminum alloy including aluminum as an essential component; silicon (Si): 16-22 wt %; copper (Cu): 2-6 wt % ; manganese (Mg): 0.2 to 4.0 wt %; iron (Fe): 1 wt % or less; nickel (Ni): 1 to 5 wt %; manganese (Mn): 0.1 wt % or less; and zinc (Zn) : 0.1 wt% or less.

[0030] In another aspect, the invention features a method of making a cylinder liner for a vehicle, comprising the steps of adding 50 to 500 ppm of phosphorus (P) to the aluminum alloy of any one of the aspects or embodiments de...

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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 to 500 ppm of phosphorus (P) to the aluminum alloy while maintaining a temperature of the aluminum alloy at 700 to 800 DEG C. in a holding furnace, stabilizing the molten aluminum alloy including the phosphorus (P) for 30 to 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.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority under 35 U.S.C. §119(a) to Korean Application No. 10-2009-0059372, filed June 30, 2009, the entire disclosure of which is incorporated herein by reference. technical field [0003] The present invention generally relates to aluminum alloys for vehicle cylinder liners and methods of making cylinder liners using the same. Background technique [0004] Typically, cylinder liners are fitted into bores in the engine block to properly prevent wear of the bore during reciprocation of the piston. Currently, cylinder liners used to strengthen the bore of an aluminum cylinder block and conform to the trend of reducing the weight of engines of transport machines such as automobiles are mainly made of cast iron. [0005] Recently, cylinder liners made of aluminum extrusions have been used to improve engine cooling performance and reduce the weight of engines according to the development of high-pow...

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Application Information

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IPC IPC(8): C22C21/02B23P15/00B22D21/04
CPCB22D11/003B21J5/00C22C21/02B22D11/108
Inventor 金永记金硕俊朴训模
Owner HYUNDAI MOTOR CO LTD
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