Abstract: The present invention provides a seat back comprising: an upper frame; a first side frame coupled to one side of the upper frame; and a first belt bracket which is coupled to a section at which the upper frame and the first side frame are connected, and which guides a seat belt. The first belt bracket comprises: a front bracket disposed in front of the section at which the upper frame and the first side frame are connected; and a rear bracket which is manufactured so as to be separable from the front bracket, is coupled to the front bracket, and is disposed behind the section at which the upper frame and the first side frame are connected.

Abstract: The present disclosure relates to an aluminum-based plated steel that is provided for vehicles by hot forming, an aluminum-based alloy plated steel manufactured using the same, and method of manufacturing thereof.

Abstract: A galvanized steel sheet according to one aspect of the present invention comprises: a base steel sheet; and a Zn—Al—Mg-based plating layer provided on at least one surface of the base steel sheet, wherein the Zn—Al—Mg-based plating layer may include a surface modified region enriched with cerium (Ce) on a surface layer side of the Zn—Al—Mg-based plating layer.

Abstract: The present invention relates to a battery case which is made from a steel material, thereby providing a cross-section similar to that of an extruded material and having improved impact resistance properties, and at the same time, enabling the reduction of costs through the integration of components, the battery case comprising a case main body having a plate and a lateral frame enclosing the plate, wherein the lateral frame comprises a hollow part inside thereof, a reinforcement part which traverses the hollow part at a portion between side walls on both sides, or protrudes into the hollow part from at least one of the side walls, and a shock absorption part which is formed by the reinforcement part being bent or curved.

Abstract: The present invention relates to: a steel material for hot forming, used for a vehicle, etc.; a hot formed part; and a method for manufacturing thereof.

Abstract: Methods of welding high manganese steel, the methods comprising: supplying at least one piece of high manganese steel; supplying the metal cored wire comprising a steel sheath with a core comprising powders of certain metal and carbon percentages and at least one of: i: sulfur in an amount less than 0.3 wt. %; or ii. phosphorous in an amount less than 0.03 wt. %; or a combination thereof; and the balance with iron; submerging the at least one piece of high manganese steel in a slag and arc stabilizer; and applying a current to the metal cored wire to produce a liquid alloy steel composition on the at least one piece of high manganese steel.

Abstract: The present disclosure relates to a positive electrode additive for a lithium secondary battery, a manufacturing method thereof. The positive electrode additive for a lithium secondary battery is represented by Chemical Formula 1 below. Li6xCo1-yMyO4??[Chemical Formula 1] (In the Chemical Formula 1, 0.9?x?1.1, 0<y?0.1, My=BaWb, 0?a?0.1, 0?b?0.1, and, a and b are not simultaneously 0.) Another positive electrode additive for a lithium secondary battery includes a core represented by Chemical Formula 2 below; and a coating layer comprising at least one of boron (B) and tungsten (W). Li6xCoO4??[Chemical Formula 2] (In the Chemical Formula 2, 0.9?x?1.1.

Abstract: A non-annealed hot-rolled ferritic stainless steel sheet with excellent impact toughness includes, in percent (%) by weight of the entire composition, C: more than 0 and 0.03% or less, Si: 0.1 to 0.5%, Mn: 1.5% or less, P: 0.04% or less, Cr: 10.5 to 14%, Ni: more than 0 and 1.5% or less, Ti: 0.01 to 0.5%, Cu: more than 0 and 1.0% or less, N: more than 0 and 0.015% or less, Al: 0.1% or less, the remainder of iron (Fe) and other inevitable impurities, and satisfies the following equation (1), and the average grain size of the cross-sectional microstructure in the direction perpendicular to the rolling direction is 60 ?m or less. (1500?(1001.5*C+950.6*Mn+1350.5*Ni+395.6*Cu?0.7*Si?1.0*Ti?0.1*Cr?1.0*P?1.0*Al+1020.5*N)?2200).??(1).

Abstract: One embodiment provides a negative active material for a lithium secondary battery, that includes a first graphite particle and a second graphite particle at a weight ratio of 80:20 to 95:5, and the particle diameter D50 of the second graphite particle is 80% or less of the particle diameter D50 of the first graphite particle. The lithium secondary battery containing the negative active material has excellent output characteristics and excellent productivity and economic efficiency.

Abstract: Disclosed is a motion amplification device including: an encoder receiving a first frame and a second frame arbitrarily adjacent in an image, and decomposing the first frame into first shape information and first texture information and decomposing the second frame into second shape information and second texture information; a first module generating a third frame in which a motion of an object is amplified based on the first shape information, the second shape information, and the second texture information; a second module analyzing an intensity of the motion based on the first shape information, the second shape information, and the first texture information; and a third module generating amplification image data indicating the intensity of the motion on the third frame.

Abstract: The present invention relates to a radiant tube apparatus disposed in a heat treatment facility to perform a heat treatment of a strip and a method for manufacturing the same. The radiant tube apparatus includes a tube having an internal pipe, wherein the tube has a first continuous pattern and a second continuous pattern extending side by side and spaced apart from each other at a predetermined distance on a surface, and, in each of the first continuous pattern and the second continuous pattern, a plurality of unit patterns having a predetermined height from the surface are connected to each other in a longitudinal direction.

Abstract: The present invention relates to a wire rod of which softening heat treatment can be omitted, and a manufacturing method therefor. One embodiment of the present invention provides a wire rod of which softening heat treatment can be omitted, and a manufacturing method therefor, the wire rod comprising, by wt %, 0.2-0.45% of C, 0.02-0.4% of Si, 0.3-1.5% of Mn, 0.3-1.5% of Cr, 0.02-0.05% of Al, 0.01-0.5% of Mo, 0.01% or less of N, and the balance of Fe and other inevitable impurities, and having a microstructure consisting of, by area %, 40% or more of proeutectoid ferrite based on an equilibrium phase, 40% or more of regenerated pearlite and bainite, and 20% or less of martensite, and wherein the colony average size of the pearlite in the region amounting to ? to ? of the diameter is 5 ?m or less.

Abstract: The present invention relates to a plated steel sheet having excellent corrosion resistance, workability and surface quality, and at the same time, capable of reducing occurrence of liquid metal embrittlement (LME).

Abstract: A non-oriented electrical steel sheet according to an exemplary embodiment of the present invention contains, by wt %, 0.005% or less (excluding 0%) of C, 1.2 to 2.7% of Si, 0.4 to 2.0% of Mn, 0.005% or less (excluding 0%) of S, 0.3% or less (excluding 0%) of Al, 0.005% or less (excluding 0%) of N, 0.005% or less (excluding 0%) of Ti, and a balance of Fe and inevitable impurities, wherein the non-oriented electrical steel sheet satisfies the following Expression 1, and a volume fraction of grains having an angle of 15° or less between a {112} plane and a rolling plane in the steel sheet is 40 to 60%. 0.3 ? ( [ Si ] + [ Al ] - 1 . 5 ) / [ Mn ] ? 0 . 8 ? 5 [ Expression ? 1 ] (In Expression 1, [Si], [Al], and [Mn] represent contents (wt %) of Si, Al, and Mn, respectively.

Abstract: Provided are a plated steel sheet for hot press forming including: a base steel sheet containing, by wt %, 0.14 to 0.5% of C, 0.001 to 1% of Si, 0.3 to 4% of Mn, 0.001 to 0.015% of P, 0.0001 to 0.02% of S, 0.001 to 0.1% of Al, 0.001 to 1% of Cr, 0.001 to 0.02% of N, 0.1% or less of Ti, 0.01% or less of B, 0.005 to 0.1% of Sb, and a balance of Fe and unavoidable impurities; an aluminum or aluminum alloy plating layer provided on at least one surface of the base steel sheet; and a Sb-rich layer provided between the base steel sheet and the plating layer, wherein the plated steel sheet for hot press forming satisfies the following Relational Expressions 1-1 and 1-2, a hot press formed member manufactured using the same, and methods for manufacturing the plated steel sheet for hot press forming and the hot press formed member. [Relational Expression 1-1] Sb max Sb coat ? 1.2 [Relational Expression 1-2] ( S ? b max - Sb c ? o ? a ? t ) 2 × ? ? t ? 0.

Abstract: The present invention relates to a lithium compound, a nickel-based cathode active material, a method for preparing lithium oxide, a method for preparing a nickel-based cathode active material, and a secondary battery using same. The lithium compound includes primary particles of Li2O having an average particle diameter (D50) of less than or equal to 5 ?m; and secondary particles composed of the primary particles.

Abstract: A non-oriented electrical steel sheet according to an embodiment of the present invention contains, by wt %: 3.1 to 3.8% of Si, 0.5 to 1.5% of Al, 0.3 to 1.5% of Mn, 0.01 to 0.15% of Cr, 0.003 to 0.08% of Sn, 0.003 to 0.06% of Sb, and a balance of Fe and inevitable impurities. The non-oriented electrical steel sheet according to an embodiment of the present invention includes a surface portion present from a surface of the steel sheet to 1/10 of a thickness of the steel sheet in a direction from the surface of the steel sheet toward an inside of the steel sheet, and a central portion, and when punching the non-oriented electrical steel sheet, a length of a plastically deformed portion may be 100 ?m or less. In this case, the plastically deformed portion refers to a length of a portion from a punched end portion where hardness of the surface portion exceeds 1.10 times that of the central portion.

Abstract: The present invention relates to a steel plate which can appropriately be used as a structural material and the like. Provided are a steel plate, exhibiting excellent strength and toughness on a heat affected zone even when high heat input welding is performed, and a method for manufacturing thereof.

Abstract: A non-oriented electrical steel sheet according to an embodiment of the present invention includes, in wt %, C at 0.005% or less (excluding 0%), Si at 0.5 to 2.4%, Mn at 0.4 to 1.0%, S at 0.005% or less (excluding 0%), Al at 0.01% or less (excluding 0%), N at 0.005% or less (excluding 0%), Ti at 0.005% or less (excluding 0%), Cu at 0.001 to 0.02%, and the balance of Fe and inevitable impurities, and satisfies Formula 1 below, wherein a volume fraction of grains in which an angle formed by a {111} surface and a rolling surface of the steel sheet is 15° or less is 27% or more. [Mn]/([Si]+150×[Al])?0.35??[Formula 1] (In Formula 1, [Mn], [Si], and [Al] are contents (wt %) of Mn, Si, and Al, respectively.

Abstract: An embodiment of the present invention provides a wire rod and a method of manufacturing same. The wire rod comprises, by weight %, 0.3-0.5 wt % of C, 0.02-0.4 wt % of Si, 1.0-1.5 wt % of Mn, 0.3-0.7 wt % of Cr, 0.003 wt % or less (exclusive of 0 wt %) of B, less than 0.03 wt % (exclusive of 0 wt %) of Ti, 0.03 wt % or less (inclusive of 0 wt %) of P, 0.01 wt % or less (inclusive of 0 wt %) of S, 0.02-0.05 wt % of Al, 0.001-0.01 wt % of N, and the balance being Fe and inevitable impurities, wherein a microstructure is a complex structure having a main phase of ferrite+pearlite, with at least one of bainite or martensite accounting for 5 area % or less (inclusive of 0%), and has a cementite average aspect ratio of 35 or less in an area covering ?-? of the diameter.