Abstract: The inventive concept provides a substrate treating method for etching a specific region on a substrate. The substrate treating method includes supplying a treating liquid to the substrate; and irradiating a laser to the specific region to locally heat the specific region; and wherein at the irradiating the laser, the laser is irradiated a plurality of times within the specific region, and the laser is irradiated to a region which does not overlap on the substrate, but which overlaps within the specific region.

Abstract: An apparatus for predicting performance of a wheel in a vehicle: includes a learning device that generates a latent space for a plurality of two-dimensional (2D) wheel images based on a convolutional autoencoder (CAE), extracts a predetermined number of the plurality of 2D wheel images from the latent space, and learns a dataset having the plurality of 2D wheel images and performance values corresponding to the plurality of 2D wheel images; and a controller that predicts performance for the plurality of 2D wheel images based on a performance prediction model obtained by the learning device.

Abstract: The inventive concept provides a substrate treating method. The substrate treating method includes pre-treating a substrate by cleaning the substrate; etching the substrate by supplying an etchant and heating a substrate supplied with the etchant; and post-treating the substrate after the etching the substrate, and wherein the pre-treating the substrate, the etching the substrate, and the post-treating the substrate are each performed in different chambers, a substrate on which the pre-treating the substrate is completed is transferred in a dry state to a chamber at which the etching the substrate is performed, and a substrate on which the etching the substrate is completed is transferred in a wetted state with a liquid to a chamber at which the post-treating the substrate is performed.

Abstract: Provided are a method for preparing a polyetherketoneketone and a polyetherketoneketone prepared thereby, wherein, at the time of a polymerization reaction, nitrogen gas is blown into a liquid reaction medium while stirring, thereby quickly removing hydrochloric acid, which is a by-product generated during the reaction, and preventing aggregation of resin particles, thus suppressing the generation of scales.

Abstract: An exemplary embodiment of the present invention discloses an aluminum-based blank including: a first plated steel plate; a second plated steel plate connected to the first plated steel plate; and a joint connecting the first plated steel plate and the second plated steel plate at a boundary between the first plated steel plate and the second plated steel plate.

Abstract: A lightweight cowl crossbar includes: a first cowl crossbeam located on a first side frame disposed at a first side of a vehicle body; a second cowl crossbeam fastened to the first cowl crossbeam and fixed to a second side frame disposed at a second side of the vehicle body; a support leg located on the second cowl crossbeam and configured to be supported by the vehicle body, and a drawing block part located on a region where the first cowl crossbeam and the second cowl crossbeam overlap.

Abstract: An insert molding apparatus includes: a lower mold including a seating part on which an insert member including a through-hole is seated; an upper mold mounted on the lower mold to receive the insert member seated on the seating part; and a first fixing part including a first head provided in the lower mold and inserted into the through-hole of the insert member when the insert member is seated, and a first drive unit that moves the first head. The first drive unit is moved to adjust a length by which the first head is inserted into the through-hole.

Abstract: A seat back frame for a vehicle according to an embodiment of the present invention comprises: a frame body consisting of a thermoplastic fiber reinforced composite material; a reinforcing agent joined to the inside of the frame body; and a cover sheet joined to the outside of the frame body. According to the present invention, the frame is lightweight while maintaining rigidity and strength like a steel frame, and a cover sheet is joined thereto, thereby enabling a board which is further joined to the seat back frame to be omitted, which leads to the achievement of a slimmed and fabric-integrated seat back frame for a vehicle. Also, a cover sheet is joined to a body frame by using a vacuum adsorption scheme, which leads to the achievement of a method for manufacturing a seat back frame for a vehicle having improved joining force and increased merchantability.

Abstract: A thrust supporting apparatus includes: a thrust runner configured to rotate integrally with a shaft; and a foil thrust bearing supporting an axial load of the shaft, the axial load being transmitted from the thrust runner. The foil thrust bearing includes a top foil facing a first surface of the thrust runner, and the thrust runner comprises first one or more grooves formed on the first surface.

Abstract: A method for manufacturing a lightweight cowl crossbar includes: producing an inner pipe, laminating a plurality of composite material layers wound around the inner pipe, and extruding an outer pipe on the winding layer, in which the plurality of composite material layers adjacent to each other are wound in different directions.

Abstract: A lightweight cowl crossbar includes: a first cowl crossbeam located on a first side frame disposed at a first side of a vehicle body; a second cowl crossbeam fastened to the first cowl crossbeam and fixed to a second side frame disposed at a second side of the vehicle body; a support leg located on the second cowl crossbeam and configured to be supported by the vehicle body, and a drawing block part located on a region where the first cowl crossbeam and the second cowl crossbeam overlap.

Abstract: A roof rack mounted on a roof panel of a vehicle includes a main body including a rail that extends along a lengthwise direction and forms the main body and support parts integrally formed on opposite longitudinal end portions of the rail in the lengthwise direction, and a hollow profile that extends along the lengthwise direction of the rail and has at least one through-hole formed in a surface facing the roof panel of the vehicle and that is integrally formed inside the rail.

Abstract: A roof rack mounted on a roof panel of a vehicle includes a main body including a rail that extends along a lengthwise direction and forms the main body and support parts provided on opposite longitudinal end portions of the rail in the lengthwise direction, a hollow profile that extends along the lengthwise direction of the rail and that is integrally formed inside the rail, caps mounted on opposite distal ends of the hollow profile and disposed inside the main body, and a pair of covers mounted on opposite side surfaces of each of the support parts.

Abstract: A roof rack mounted on a roof panel of a vehicle includes a main body including a rail that extends along a lengthwise direction and forms the main body and support parts provided on opposite longitudinal end portions of the rail in the lengthwise direction, a hollow profile that extends along the lengthwise direction of the rail and that is integrally formed inside the rail, and a cap mounted on at least one of opposite longitudinal end portions of the hollow profile or disposed inside the main body.

Abstract: A radial force support apparatus includes: a shaft coupled to an impeller and configured to rotate together with the impeller; and a foil radial bearing supporting the shaft. The foil radial bearing includes a top foil disposed on an inner circumferential surface of the foil radial bearing and facing at least a part of an outer circumferential surface of the shaft, and the shaft facing the top foil includes at least one groove provided on the outer circumferential surface of the shaft.

Abstract: A roof rack mounted on a roof panel of a vehicle includes a main body including a rail that extends along a lengthwise direction and forms the main body and support parts integrally formed on opposite longitudinal end portions of the rail in the lengthwise direction, and a hollow profile that extends along the lengthwise direction of the rail and has at least one through-hole formed in a surface facing the roof panel of the vehicle and that is integrally formed inside the rail.

Abstract: A roof rack mounted on a roof panel of a vehicle includes a main body including a rail that extends along a lengthwise direction and forms the main body and support parts provided on opposite longitudinal end portions of the rail in the lengthwise direction, a hollow profile that extends along the lengthwise direction of the rail and that is integrally formed inside the rail, caps mounted on opposite distal ends of the hollow profile and disposed inside the main body, and a pair of covers mounted on opposite side surfaces of each of the support parts.

Abstract: A roof rack mounted on a roof panel of a vehicle includes a main body including a rail that extends along a lengthwise direction and forms the main body and support parts provided on opposite longitudinal end portions of the rail in the lengthwise direction, a hollow profile that extends along the lengthwise direction of the rail and that is integrally formed inside the rail, and a cap mounted on at least one of opposite longitudinal end portions of the hollow profile or disposed inside the main body.

Abstract: An insert molding apparatus includes: a lower mold including a seating part on which an insert member including a through-hole is seated; an upper mold mounted on the lower mold to receive the insert member seated on the seating part; and a first fixing part including a first head provided in the lower mold and inserted into the through-hole of the insert member when the insert member is seated, and a first drive unit that moves the first head. The first drive unit is moved to adjust a length by which the first head is inserted into the through-hole.

Abstract: A method for manufacturing a roof rack that is mounted on a roof panel of a vehicle and includes a main body and a hollow profile integrally formed inside the main body may include: manufacturing the hollow profile using a drawing method, wherein the hollow profile is formed of a resin composite and has a hollow portion extending in a lengthwise direction thereof; mounting caps on opposite longitudinal end portions of the hollow profile in the lengthwise direction to seal the hollow portion; inserting the hollow profile having the caps mounted on the opposite longitudinal end portions thereof into an injection mold; and insert-molding the main body having the hollow profile integrally formed inside, by injecting a moldable material to surround the hollow profile.