FE-CU ALLOY ROLLED FOIL FOR SHIELDING ELECTROMAGNETIC WAVES AND METHOD FOR MANUFACTURING SAME

WIPO Patent Application WO/2015/034283

A1

The purpose of the present invention is to provide a Fe-Cu alloy rolled foil containing 3-30 wt% steel, with copper accounting for the remaining weight, that is, a Fe-Cu alloy rolled foil having 3-30 wt% steel and 70-97 wt% copper. The Fe-Cu alloy rolled foil of the present invention is manufactured to consist of 3-30 wt% steel and 70-97 wt% copper having a thickness of 100-10㎛, by casting a slab using a molten Fe-Cu master alloy and molten metal copper and rolling the slab with a total reduction ratio of 90% or more using a heat treatment and a multi-stage rolling mill. The Fe-Cu alloy rolled foil of the present invention provides an effect of shielding electromagnetic waves of 80dB or more within high frequencies ranging between 1GHz-1.5GHz, and thus has an excellent effect of shielding electromagnetic waves, thereby making it possible to control malfunction caused by noise in circuits of precision machines, robots, and automobiles, etc. and reduce noise in mobile phones. Accordingly, the Fe-Cu alloy rolled foil may be widely applied as a material for shielding electromagnetic waves.

SHIN JUNGOUK (KR)
SHIN JOONGPIL (KR)

PCT/KR2014/008317

March 12, 2015

September 04, 2014

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GREEN INDUSTRY CO LTD (KR)
TAIHAN METAL & CABLE CO LTD (KR)

B21B1/40; B21B47/02; B22D21/00; C22C9/00

KR100567739B1	2006-04-07
KR100584730B1	2006-05-30
KR100584731B1	2006-05-30
KR900002983B1	1990-05-03
KR101182110B1	2012-09-12

LEE, InHaeng et al. (KR)
이인행 (KR)

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