Abstract: A cooling apparatus according to an embodiment of the present invention may comprise: a chamber member to which a cooling fluid is supplied from the outside; a discharge member, provided in the chamber member, for discharging the cooling fluid inside the chamber unit; and a resistance member, provided in an inlet portion of the chamber member, for inhibiting an initial flow of the cooling fluid supplied into the chamber member.

Abstract: A straightening system is provided to perform straightening in conformity with a shape pattern of a the material. The straightening system includes a cooling device configured to spray a cooling fluid in a predetermined pattern with respect to a plurality of regions of the material, divided in a width direction, to cool the material that is heated in a heating furnace and then passes through a rolling mill. The straightening system also includes a straightening device configured to straighten the material passed through the cooling device. The straightening system further includes a flatness measuring system configured to measure flatness of the material passed through the cooling device and a controller configured to receive data of the flatness of the material from the flatness measuring system and to control the cooling device in response to the data to enhance the flatness of the material.

Abstract: The present invention relates to a cooling device and a cooling method capable of controlling, by section, the flow of coolant supplied in a widthwise direction, the cooling device comprising: a base frame connected to an external cooling fluid supply line, and disposed to be able to spray coolant onto a material that passes through a rolling mill after having been heated in a heating furnace; and a nozzle assembly disposed on the base frame, and spraying a cooling fluid in an arbitrary pattern onto a plurality of sections divided along the widthwise direction of the material to minimize a deviation in temperature in the widthwise direction of the material. Through this configuration, the flow of coolant supplied in the widthwise direction of a material can be controlled to be varied, thereby being capable of minimizing a deviation in temperature in the widthwise direction of a high temperature material.

Abstract: A cooling system according to an embodiment of the present invention may comprise: a cooling part which supplies a cooling fluid to a strip; and a boiling film removal part, which physically comes into contact with the strip and removes a boiling film formed by the cooling fluid. The boiling film removal part according to the embodiment may be disposed at a position where a nuclear boiling and a film boiling are mixed together along a widthwise direction of the strip.

Abstract: The present invention relates to a cooling device and a cooling method capable of controlling, by section, the flow of coolant supplied in a widthwise direction, the cooling device comprising: a base frame connected to an external cooling fluid supply line, and disposed to be able to spray coolant onto a material that passes through a rolling mill after having been heated in a heating furnace; and a nozzle assembly disposed on the base frame, and spraying a cooling fluid in an arbitrary pattern onto a plurality of sections divided along the widthwise direction of the material to minimize a deviation in temperature in the widthwise direction of the material. Through this configuration, the flow of coolant supplied in the widthwise direction of a material can be controlled to be varied, thereby being capable of minimizing a deviation in temperature in the widthwise direction of a high temperature material.

Abstract: A straightening system and a straightening method are provided to perform straightening in conformity with the shape pattern of a material, the straightening system comprising: a cooling device configured to spray a cooling fluid in a predetermined pattern with respect to a plurality of regions of a material, divided in a width direction, to cool the material that is heated in a heating furnace and then passes through a rolling mill; a straightening device configured to straighten the material passed through the cooling device; a flatness measuring system configured to measure flatness of the material passed through the cooling device; and a controller configured to receive data of the flatness of the material from the flatness measuring system and to control the cooling device in response to the data to enhance the flatness of the material.

Abstract: Disclosed is a full color liquid crystal display, including a lower substrate and an upper substrate facing each other, partition spacers uniformly arranged between the lower substrate and the upper substrate to form a plurality of spaces while maintaining a cell gap between the lower substrate and the upper substrate, a lower transparent electrode and an upper transparent electrode respectively provided to the lower substrate and the upper substrate in the spaces defined by the partition spacers so as to face each other, subpixels having liquid crystals which are able to reflect or absorb respective specific light wavelengths and which are separately received in the spaces defined by the partition spacers, a plurality of such subpixels constituting a single pixel to exhibit full color.

Abstract: Disclosed is a full color liquid crystal display, including a lower substrate and an upper substrate facing each other, partition spacers uniformly arranged between the lower substrate and the upper substrate to form a plurality of spaces while maintaining a cell gap between the lower substrate and the upper substrate, a lower transparent electrode and an upper transparent electrode respectively provided to the lower substrate and the upper substrate in the spaces defined by the partition spacers so as to face each other, subpixels having liquid crystals which are able to reflect or absorb respective specific light wavelengths and which are separately received in the spaces defined by the partition spacers, a plurality of such subpixels constituting a single pixel to exhibit full color.