Title:
METHOD FOR MANUFACTURING ALUMINUM-BASED CLAD HEAT SINK, AND ALUMINUM-BASED CLAD HEAT SINK MANUFACTURED THEREBY
Document Type and Number:
WIPO Patent Application WO/2020/213753
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing an aluminum-based clad heat sink, and an aluminum-based clad heat sink manufactured thereby. The method for manufacturing an aluminum-based clad heat sink comprises: (A) a composite powder preparation step of preparing a composite powder by ball milling (i) an aluminum or aluminum alloy powder and (ii) carbon nanotubes (CNTs); (B) a billet manufacturing step of manufacturing multilayer billets comprising the composite powder; and (C) a direct extrusion step of manufacturing a heat sink by directly extruding the billets through the use of extrusion dies. According to the present invention, since a manufacturing method using direct extrusion, which is a conventional mass production method, is used, a manufacturing process is simple and required equipment is also relatively simple, thereby enabling the manufacture of an aluminum-based clad heat sink, which is suitable for mass production because of high price competitiveness, in which lightweightness is implemented, and which has high thermal conductivity and high strength.
Inventors:
KWON HAN SANG (KR)
Application Number:
PCT/KR2019/004629
Publication Date:
October 22, 2020
Filing Date:
April 17, 2019
Export Citation:
Assignee:
NAT UNIV PUKYONG IND UNIV COOP FOUND (KR)
International Classes:
B22F5/00; B22F3/20; B22F9/04; H05K7/20
Foreign References:
| KR20180005972A | 2018-01-17 | |||
| JP2017088913A | 2017-05-25 | |||
| KR20010070226A | 2001-07-25 | |||
| KR20130118537A | 2013-10-30 | |||
| US20170018324A1 | 2017-01-19 |
Other References:
See also references of EP 3957417A4
Attorney, Agent or Firm:
KIM, Jung Su (KR)
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