Abstract: The present invention relates to steel used for members of chassis parts and wheel discs of commercial vehicles, or the like and, more specifically, to a high-strength steel with excellent durability and a method for manufacturing same.

Abstract: According to an exemplary embodiment of the present invention, a manufacturing method of a magnesium alloy plate includes: (a) solution-treating a magnesium casting material containing 0.5 to 10 wt % of zinc (Zn), 1 to 15 wt % of aluminum (Al), and a balance of magnesium (Mg) and inevitable impurities at 300 to 500° C. for 1 to 48 hours; (b) pre-heating the solution-treated magnesium casting material at 300 to 500° C.; and (c) of rolling the pre-heated magnesium casting material together with a constraint member selected by following Relational Expression 1 to satisfy Relational Expressions 2 and 3; and (d) solution-treating a thus-rolled magnesium alloy plate at 300 to 500° C. for 0.5 to 5 hours. Relational Expressions 1 to 3 are as described in the specification.

Abstract: Provided is a high-strength steel sheet having high impact resistance. The steel sheet includes: by weight %, carbon (C): 0.05% to 0.14%, silicon (Si): 0.01% to 1.0%, manganese (Mn): 1.5% to 2.5%, aluminum (Al): 0.01% to 0.1%, chromium (Cr): 0.005% to 1.0%, phosphorus (P): 0.001% to 0.05%, sulfur (S): 0.001% to 0.01%, nitrogen (N): 0.001% to 0.01%, niobium (Nb): 0.005% to 0.06%, titanium (Ti): 0.005% to 0.11%, and the balance of iron (Fe) and inevitable impurities. The steel sheet has a microstructure comprising ferrite and bainite in a total area fraction of 90% or more. The steel sheet has a value of 0.05 to 1.0 as a shear texture ({110}<112>, {112}<111>) area ratio of a center region (ranging deeper than 1/10t to ½t in a thickness direction, t refers to thickness (mm)) and a surface region (ranging from a surface to 1/10t in the thickness direction).

Abstract: A hot-rolled coated steel sheet including: in wt %, C: 0.05-0.14%, Si: 0.1-1.0%, Mn: 1.0-2.0%, P: 0.001-0.05%, S: 0.001-0.01%, AI: 0.01-0.1%, Cr: 0.005-1.0%, Ti: 0.005-0.13%, Nb: 0.005-0.03%, N: 0.001-0.01%, Fe residues, and other inevitable impurities; a mixed structure of ferrite and bainite as a main phase; and as a remaining structure, one or more selected from the group consisting of martensite, austenite, and phase martensite (MA), wherein a fraction of the ferrite and bainite is 95-99 area % and Equation 1 is satisfied. [Equation 1] FCO{110}<112>+FCO{112}<111>?10 where, FCO{110}<112> and FCO{112}<111>, each representing an area fraction occupied by a structure having ac crystal orientation of {110}<112> and {112}<111>.

Abstract: The present invention relates to steel used for a sash component and the like of a vehicle and, more specifically, to a hot-rolled steel sheet for a high-strength electric resistance welded steel pipe having excellent expandability and a method for manufacturing same, the hot-rolled steel sheet having a smaller decrease in the strength of a welding heat-affected zone (HAZ) formed during electric resistance welding, in comparison with a base material.

Abstract: The present invention relates to steel used for a sash component and the like of a vehicle and, more specifically, to a hot-rolled steel sheet having excellent durability and a method for manufacturing same, the hot-rolled steel sheet having no cracks formed on a material and a welding heat-affected zone (HAZ) even after pipemaking and molding due to a smaller decrease in the strength of the welding heat-affected zone formed during electric resistance welding in comparison with the strength of the material (base material).

Abstract: Provided is a precipitation-hardening hot rolled steel sheet, having excellent material uniformity and hole expandability, comprising, by weight, 0.02% to 0.05% of C, 0.01% to 0.3% of Si, 1.0% to 1.6% of Mn, 0.04% to 0.1% of Ti, 0.01% to 0.05% of Nb, 0.008% or less of N, and a remainder of Fe and inevitable impurities, satisfying Relationship 1, wherein a microstructure of the precipitation-hardening hot rolled steel sheet comprises 95 area % or more of ferrite and (Ti, Nb)C complex precipitates, the number of (Ti, Nb)C complex precipitates having a diameter of 10 nm or less is five or more times the number of (Ti, Nb)C complex precipitates having a diameter greater than 10 nm. Relationship 1: 0.35?(Ti+Nb+V+Mo)/(C+N) 0.70.

Abstract: According to an exemplary embodiment of the present invention, a manufacturing method of a magnesium alloy plate includes: (a) solution-treating a magnesium casting material containing 0.5 to 10 wt % of zinc (Zn), 1 to 15 wt % of aluminum (Al), and a balance of magnesium (Mg) and inevitable impurities at 300 to 500° C. for 1 to 48 hours; (b) pre-heating the solution-treated magnesium casting material at 300 to 500° C.; and (c) of rolling the pre-heated magnesium casting material together with a constraint member selected by following Relational Expression 1 to satisfy Relational Expressions 2 and 3; and (d) solution-treating a thus-rolled magnesium alloy plate at 300 to 500° C. for 0.5 to 5 hours. Relational Expressions 1 to 3 are as described in the specification.

Abstract: Provided is a high strength multi-phase steel having excellent burring properties at low temperature, and a method for producing the same. More specifically, provided are a high strength multi-phase steel having excellent burring properties at low temperature, and a method for producing the same, wherein the multi-phase steel can be appropriately used as a member, a lower arm, a reinforcement material, a connection material, or the like for a vehicle chassis component.

Abstract: Provided is a high-strength steel sheet having excellent burring workability in a low temperature range, which is mainly used for automobile chassis parts such as members, lower arms, wheel disks, etc.; and a manufacturing method therefor.

Abstract: Provided is a steel used for chassis parts, etc. of an automobile and, more specifically, to a hot rolled steel plate for an electric resistance welded steel pipe, which shows an excellent weldability in electric resistance welding, and a manufacturing method thereof.

Abstract: A display apparatus is provided. The display apparatus includes a display panel, a chassis configured to support the display panel, a backlight unit configured to be installed on the chassis, and an electricity generator configured to use the backlight unit as a heat source to generate electricity. The electricity generator includes a heat transfer unit which contacts the backlight unit, at least one heat storage unit which contacts the heat transfer unit, and at least one thermoelectric device comprising a heat generator and a heat absorber contacting the heat transfer unit. The at least one thermoelectric device absorbs heat, which is generated from the backlight unit, through the heat transfer unit in response to the backlight unit being driven and absorbs heat from the at least one heat storage unit through the heat transfer unit in response to the backlight unit not being driven.

Abstract: An energy harvesting apparatus includes a housing that includes an internal portion filled with dielectric liquid in a vacuum state, first and second electrode portions that are disposed to face each other in the housing and configured to be polarized with different polarities, a first layer that forms a path along the internal portion of the housing to allow the dielectric liquid and bubbles generated from the dielectric liquid to flow through the path, and a second layer configured to insulate the first and second electrode portions from the housing. The bubbles are generated from the dielectric liquid when thermal energy is applied to the housing. The first and second electrode portions may change a dielectric constant of the dielectric liquid when the bubbles move between the first and second electrode portions to generate current.

Abstract: Disclosed herein are a display device, a display system and method thereof. The display device includes a display panel, a light emitter configured to emit light to display an image on the display panel, a pipe positioned adjacent to the light emitter and having a conductive fluid and a gas therein, and electrodes provided in the pipe and polarized, where heat is generated to move the conductive fluid inside the pipe when the light emitter emits light, and electricity is generated while moving and passing around the electrodes.

Abstract: Disclosed herein are a display device, a display system and method thereof. The display device includes a display panel, a light emitter configured to emit light to display an image on the display panel, a pipe positioned adjacent to the light emitter and having a conductive fluid and a gas therein, and electrodes provided in the pipe and polarized, where heat is generated to move the conductive fluid inside the pipe when the light emitter emits light, and electricity is generated while moving and passing around the electrodes.

Abstract: An energy harvesting apparatus includes a housing that includes an internal portion filled with dielectric liquid in a vacuum state, first and second electrode portions that are disposed to face each other in the housing and configured to be polarized with different polarities, a first layer that forms a path along the internal portion of the housing to allow the dielectric liquid and bubbles generated from the dielectric liquid to flow through the path, and a second layer configured to insulate the first and second electrode portions from the housing. The bubbles are generated from the dielectric liquid when thermal energy is applied to the housing. The first and second electrode portions may change a dielectric constant of the dielectric liquid when the bubbles move between the first and second electrode portions to generate current.

Abstract: A display apparatus is provided. The display apparatus includes a display panel, a chassis configured to support the display panel, a backlight unit configured to be installed on the chassis, and an electricity generator configured to use the backlight unit as a heat source to generate electricity. The electricity generator includes a heat transfer unit which contacts the backlight unit, at least one heat storage unit which contacts the heat transfer unit, and at least one thermoelectric device comprising a heat generator and a heat absorber contacting the heat transfer unit. The at least one thermoelectric device absorbs heat, which is generated from the backlight unit, through the heat transfer unit in response to the backlight unit being driven and absorbs heat from the at least one heat storage unit through the heat transfer unit in response to the backlight unit not being driven.