Title:
MAGNESIUM DEACTIVATING AGENT AND METHOD FOR PREPARING A MAGNESIUM-ALLOY USING THE MAGNESIUM DEACTIVATING AGENT
Document Type and Number:
WIPO Patent Application WO/2013/100427
Kind Code:
A1
Abstract:
The present invention provides a magnesium deactivating agent to be added for improving the flame retardancy and corrosion resistance of magnesium and a magnesium alloy, and more particularly, a magnesium deactivating agent which forms a stable protective film on the surface of magnesium by simply being added into most types of molten magnesium alloy, thus enabling melting and casting in air or a general inert atmosphere, thereby preventing the spontaneous ignition of a chip by significantly improving ignition resistance, and also improving the corrosion resistance and mechanical properties of an alloy. The magnesium deactivating agent according to the present invention is characterized by comprising 60 wt% to 41.6 wt% of Ca, 6 wt% to 45 wt% of Y, and Mg as the remainder, along with other inevitable impurities, wherein the contents of Ca and Y in the magnesium deactivating agent follow the mathematical equation: Y ≤ 64.3 - 1.4 Ca (wt %).
Inventors:
KIM YOUNG MIN (KR)
KIM HA SIK (KR)
YOU BONG SUN (KR)
YIM CHANG DONG (KR)
KIM HA SIK (KR)
YOU BONG SUN (KR)
YIM CHANG DONG (KR)
Application Number:
PCT/KR2012/010547
Publication Date:
July 04, 2013
Filing Date:
December 06, 2012
Export Citation:
Assignee:
KOREA MACH & MATERIALS INST (KR)
International Classes:
C22C23/00; B22D21/04; C22C23/02; C22C23/06
Foreign References:
| KR101080164B1 | 2011-11-07 | |||
| KR101066536B1 | 2011-09-21 | |||
| KR20100073476A | 2010-07-01 | |||
| JP2002157979A | 2002-05-31 |
Attorney, Agent or Firm:
LEE, Chae-Hyung et al. (15, Teheran-ro 86-gil, Gangnam-gu, Seoul 135-845, KR)
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