# US 2014/0154130 A1 · Die Casting Aluminum Alloys for Heat-Dissipating Plates

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- Number: US 2014/0154130 A1
- Document ID: US20140154130A1
- Status: Published application
- Kind: A1
- Application number: 14/233,019
- Filed: 2012-06-14
- Published: 2014-06-05
- Earliest claimed: 2011-07-22
- Assignees: Korea Institute of Industrial Technology
- Inventors: Jae Ik Cho; Young Chan Kim; Cheol Woo Kim; Se Weon Choi; Chang Seong Kang
- Web page: https://patentgrep.com/patent/US20140154130A1

## CPC

- C22C 21/02: with silicon as the next major constituent
- C22C: ALLOYS (treatment of alloys C21D, C22F)

## Abstract

Provided is an aluminum alloy, and particularly, a die casting aluminum alloy for a heat sink, which includes 0.01 to 0.5 wt % of Cu, 0.3 to 0.6 wt % of Fe, 1.0 to 1.5 wt % of Si, and thus may enhance heat dissipation and castability.

## Claims

### Claim 1

A die casting aluminum alloy for a heat sink, comprising:
Cu in an amount of 0.01 to 0.5 wt %, Fe in an amount of 0.3 to 0.6 wt %, and Si in an amount of 1.0 to 1.5 wt %.

### Claim 2 (depends on 1)

The alloy according to claim 1, further comprising:
Mn in an amount of 0.0035 to 0.01 wt %.

### Claim 3 (depends on 1)

The alloy according to claim 1, further comprising:
Mg in an amount of 0.0001 to 0.001 wt %.