Abstract: The present invention provides a cold crucible for continuously casting high-purity light metal thin slab, which can control the electromagnetic force applied from the inner wall surface of a cold crucible to the surface of molten metal in order to change the shape of the cold crucible to various shapes during electromagnetic casting, while stabilizing the molten metal inside the cold crucible and casting an ingot having uniform particles.

Abstract: The present invention includes a first injection tube for supplying a colloidal medium, a storage part connected to the first injection tube for receiving the colloidal medium through the first injection tube, a second injection tube connected to the storage part for supplying a colloid, a discharge tube connected to both the storage part and the second injection tube for discharging the colloidal medium coming from the storage part and the colloid coming from the second injection tube, and a free surface inversion part for inverting the free surface of the liquid in the second injection tube so as to mix the colloidal medium and the colloid in the discharge tube.

Abstract: Disclosed is an aluminum alloy for die casting which comprises 1.0 weight % to 2.0 weight % of magnesium (Mg), 0.5 weight % to 1.6 weight % of iron (Fe), and 0.5 weight % to 0.9 weight % of silicon (Si), with the remainder being aluminum (Al) and inevitable impurities.

Abstract: The present invention relates to an aluminum alloy which has excellent thermal conductivity as well as high castability and satisfactory tensile characteristics, and is thus applicable to various kinds of structural products that require heat dissipation characteristics. According to the present invention, the aluminum alloy for die casting includes 5.5-8.5 wt % of zinc (Zn), 0.5-3.0 wt % of magnesium (Mg), 0.45-1.5 wt % of iron (Fe), and the remainder consisting of aluminum (Al) and inevitable impurities.

Abstract: The present invention includes a first injection tube for supplying a colloidal medium, a storage part connected to the first injection tube for receiving the colloidal medium through the first injection tube, a second injection tube connected to the storage part for supplying a colloid, a discharge tube connected to both the storage part and the second injection tube for discharging the colloidal medium coming from the storage part and the colloid coming from the second injection tube, and a free surface inversion part for inverting the free surface of the liquid in the second injection tube so as to mix the colloidal medium and the colloid in the discharge tube.

Abstract: Disclosed are a method and an apparatus for fabricating solar-grade high purity polycrystalline silicon compacts. Silicon compacts are fabricating by loading polycrystalline silicon powders into a mold without addition of binders in a vacuum atmosphere, and pressurizing and heating the polycrystalline silicon powders. Heating method includes a high-frequency induction heating type, an Ohmic heating type, and a high current supply type.

Abstract: Disclosed is high thermal conductivity Al—Si—Fe—Zn alloy for die casting which comprises 1.0 weight % to 2.0 weight % of silicon (Si), 0.5 weight % to 1.6 weight % of iron (Fe), 0.6 weight % to 1.6 weight % of zinc (Zn), with the remainder being aluminum (Al) and inevitable impurities.

Abstract: Disclosed is an aluminum alloy for die casting which comprises 1.0 weight % to 2.0 weight % of magnesium (Mg), 0.5 weight % to 1.6 weight % of iron (Fe), and 0.5 weight % to 0.9 weight % of silicon (Si), with the remainder being aluminum (Al) and inevitable impurities.

Abstract: Disclosed is a system for refining UMG Si including a vacuum chamber, a cold crucible disposed within the vacuum chamber, a device disposed within the vacuum chamber to supply Si to the cold crucible, a steam plasma torch disposed above the cold crucible to apply steam plasma formed by introducing a reactive gas into plasma flame by an inert gas to the Si supplied to the cold crucible, and an impurity collector disposed above the cold crucible within the vacuum chamber to collect impurity gas generated in the cold crucible and discharge the collected impurity gas to the outside of the vacuum chamber.

Abstract: Disclosed is a system for refining UMG Si including a vacuum chamber, a cold crucible disposed within the vacuum chamber, a device disposed within the vacuum chamber to supply Si to the cold crucible, a steam plasma torch disposed above the cold crucible to apply steam plasma formed by introducing a reactive gas into plasma flame by an inert gas to the Si supplied to the cold crucible, and an impurity collector disposed above the cold crucible within the vacuum chamber to collect impurity gas generated in the cold crucible and discharge the collected impurity gas to the outside of the vacuum chamber.

Abstract: Disclosed are a method and an apparatus for fabricating solar-grade high purity polycrystalline silicon compacts. Silicon compacts are fabricating by loading polycrystalline silicon powders into a mold without addition of binders in a vacuum atmosphere, and pressurizing and heating the polycrystalline silicon powders. Heating method includes a high-frequency induction heating type, an Ohmic heating type, and a high current supply type.

Abstract: Disclosed is an electromagnetic continuous casting apparatus for a material having a low electric conductivity. The casting apparatus includes a crucible having a vertical axis. The crucible comprises an upper hot crucible and a lower cold crucible. The crucible is surrounded with an induction coil. The hot crucible is formed of a non-metallic material having a high electric conductivity and is not water-cooled. The cold crucible has a cooling structure and is formed of a metallic material having a high thermal conductivity and a high electric conductivity.