Abstract: Disclosed herein is a full-size mask assembly and a manufacturing method thereof. The full-size mask assembly according to an embodiment of the present invention includes a frame having a frame opening formed therein and a support surrounding the frame opening, a structural auxiliary mask supported by the support and having a plurality of shafts in a grid shape to form a plurality of structural auxiliary mask openings, and a plurality of cell unit masks supported by the structural auxiliary mask and each of which has a deposition pattern portion through which a deposition material passes.

Abstract: Disclosed herein is a full-size mask assembly and a manufacturing method thereof. The full-size mask assembly according to an embodiment of the present invention includes a frame having a frame opening formed therein and a support surrounding the frame opening, a structural auxiliary mask supported by the support and having a plurality of shafts in a grid shape to form a plurality of structural auxiliary mask openings, and a plurality of cell unit masks supported by the structural auxiliary mask and each of which has a deposition pattern portion through which a deposition material passes.

Abstract: An apparatus for manufacturing a tension mask-frame assembly includes a frame loading unit configured to load a tension mask-frame assembly, a pressing unit configured to press the support frame, a load cell configured to measure a force applied to the support frame, and a control unit configured to control the pressing unit to pre-deform the support frame in accordance with at least a portion of a bending deformation amount of the support frame, caused by own weight of the support frame and tension of the tension mask. The pressing unit includes inward pressing members which press the pair of support frames toward the inside of the frame, and outward pressing members which press the support frame toward the outside of the frame. The outward pressing members are disposed in a slot formed in a lengthwise direction of the support frame.

Abstract: An apparatus for manufacturing a tension mask-frame assembly includes a frame loading unit configured to load a tension mask-frame assembly, a pressing unit configured to press the support frame, a load cell configured to measure a force applied to the support frame, and a control unit configured to control the pressing unit to pre-deform the support frame in accordance with at least a portion of a bending deformation amount of the support frame, caused by own weight of the support frame and tension of the tension mask. The pressing unit includes inward pressing members which press the pair of support frames toward the inside of the frame, and outward pressing members which press the support frame toward the outside of the frame. The outward pressing members are disposed in a slot formed in a lengthwise direction of the support frame.

Abstract: An apparatus for manufacturing a tension mask-frame assembly includes a frame loading unit configured to load a tension mask-frame assembly, a pressing unit configured to press the support frame, a load cell configured to measure a force applied to the support frame, and a control unit configured to control the pressing unit to pre-deform the support frame in accordance with at least a portion of a bending deformation amount of the support frame, caused by own weight of the support frame and tension of the tension mask. The pressing unit includes inward pressing members which press the pair of support frames toward the inside of the frame, and outward pressing members which press the support frame toward the outside of the frame. The outward pressing members are disposed in a slot formed in a lengthwise direction of the support frame.

Abstract: Disclosed herein is a full-size mask assembly and a manufacturing method thereof. The full-size mask assembly according to an embodiment of the present invention includes a frame having a frame opening formed therein and a support surrounding the frame opening, a structural auxiliary mask supported by the support and having a plurality of shafts in a grid shape to form a plurality of structural auxiliary mask openings, and a plurality of cell unit masks supported by the structural auxiliary mask and each of which has a deposition pattern portion through which a deposition material passes.

Abstract: Disclosed herein is a full-size mask assembly and a manufacturing method thereof. The full-size mask assembly according to an embodiment of the present invention includes a frame having a frame opening formed therein and a support surrounding the frame opening, a structural auxiliary mask supported by the support and having a plurality of shafts in a grid shape to form a plurality of structural auxiliary mask openings, and a plurality of cell unit masks supported by the structural auxiliary mask and each of which has a deposition pattern portion through which a deposition material passes.

Abstract: Disclosed herein is a full-size mask assembly and a manufacturing method thereof. The full-size mask assembly according to an embodiment of the present invention includes a frame having a frame opening formed therein and a support surrounding the frame opening, a structural auxiliary mask supported by the support and having a plurality of shafts in a grid shape to form a plurality of structural auxiliary mask openings, and a plurality of cell unit masks supported by the structural auxiliary mask and each of which has a deposition pattern portion through which a deposition material passes.

Abstract: An apparatus for manufacturing a tension mask-frame assembly includes a frame loading unit configured to load a tension mask-frame assembly, a pressing unit configured to press the support frame, a load cell configured to measure a force applied to the support frame, and a control unit configured to control the pressing unit to pre-deform the support frame in accordance with at least a portion of a bending deformation amount of the support frame, caused by own weight of the support frame and tension of the tension mask. The pressing unit includes inward pressing members which press the pair of support frames toward the inside of the frame, and outward pressing members which press the support frame toward the outside of the frame. The outward pressing members are disposed in a slot formed in a lengthwise direction of the support frame.

Abstract: Disclosed is a tension mask frame assembly manufacturing apparatus for mounting a tension mask on a rectangular frame having: a pair of support frame parts to which mutually facing edges of a tension mask having a rectangular sheet shape are fixed; and a pair of connection frame parts for mutually connecting both ends of the support frame parts. The manufacturing apparatus comprises: a frame loading unit for loading the tension mask frame assembly; a pressing unit for pressing the support frame parts along the direction of the plate surfaces of support frames between both ends thereof; and a control unit for controlling the pressing unit so as to pre-deform the support frames in correspondence to at least a part of the bending deformation amount of the support frame parts according to the weight of the support frame parts and the tension of the tension mask.

Abstract: Disclosed herein is a full-size mask assembly and a manufacturing method thereof. The full-size mask assembly according to an embodiment of the present invention includes a frame having a frame opening formed therein and a support surrounding the frame opening, a structural auxiliary mask supported by the support and having a plurality of shafts in a grid shape to form a plurality of structural auxiliary mask openings, and a plurality of cell unit masks supported by the structural auxiliary mask and each of which has a deposition pattern portion through which a deposition material passes.

Abstract: Disclosed is a tension mask frame assembly manufacturing apparatus for mounting a tension mask on a rectangular frame having: a pair of support frame parts to which mutually facing edges of a tension mask having a rectangular sheet shape are fixed; and a pair of connection frame parts for mutually connecting both ends of the support frame parts. The manufacturing apparatus comprises: a frame loading unit for loading the tension mask frame assembly; a pressing unit for pressing the support frame parts along the direction of the plate surfaces of support frames between both ends thereof; and a control unit for controlling the pressing unit so as to pre-deform the support frames in correspondence to at least a part of the bending deformation amount of the support frame parts according to the weight of the support frame parts and the tension of the tension mask.

Abstract: Disclosed is a method for removing a thermal sleeve from a cold leg of a reactor coolant system, which enables removal of an unintentionally separated thermal sleeve without implementation of a pipe cutting operation, preventing invasion of impurities into pipes and securing reliability in repetitious welding of the pipes. In particular, the method enables a remote operation and an underwater operation using wire ropes, thus being capable of minimizing a negative effect on workers due to radiation exposure.

Abstract: Disclosed is an apparatus for removing a thermal sleeve from a cold leg of a reactor coolant system, which removes an unintentionally separated thermal sleeve without pipe cutting, preventing invasion of impurities into pipes and achieving reliable pipe re-welding. The apparatus includes a sleeve removal tool including a corn head formed at a shaft, a pressure plate below the corn head to maximize hydraulic pressure inside a safety injection pipe, a spring connected to the pressure plate to keep the pressure plate unfolded, and a guide wheel to guide the sleeve removal tool into the safety injection pipe, a horizontal movement carrier including bodies connected to each other by a link, a seating rod for seating of the sleeve removal tool, and moving wheels for movement of the horizontal movement carrier, and a vertical movement carrier including first and second anti-separation bars to prevent separation of the horizontal movement carrier.

Abstract: A power transmission line dip measurement method is disclosed. The dip measurement method includes installing a measurement instrument at a place where power line support points of steel towers can be seen from the ground, collimating the measurement instrument at the power line support point of one of the steel towers, transmitting a collimated value to a PDA in a wired or wireless manner, collimating the measurement instrument at the power line support point of the other steel tower, transmitting a collimated value to the PDA, calculating the collimated values to display a horizontal angle position of a dip base line, and adjusting an angle of the measurement instrument based on the horizontal angle displayed on a screen of the PDA by a worker, collimating the measurement instrument at a power line dip point as a dip base point, and displaying a dip value on the screen of the PDA.

Abstract: Disclosed is a method for removing a thermal sleeve from a cold leg of a reactor coolant system, which enables removal of an unintentionally separated thermal sleeve without implementation of a pipe cutting operation, preventing invasion of impurities into pipes and securing reliability in repetitious welding of the pipes. In particular, the method enables a remote operation and an underwater operation using wire ropes, thus being capable of minimizing a negative effect on workers due to radiation exposure.

Abstract: Disclosed is an apparatus for removing a thermal sleeve from a cold leg of a reactor coolant system, which removes an unintentionally separated thermal sleeve without pipe cutting, preventing invasion of impurities into pipes and achieving reliable pipe re-welding. The apparatus includes a sleeve removal tool including a corn head formed at a shaft, a pressure plate below the corn head to maximize hydraulic pressure inside a safety injection pipe, a spring connected to the pressure plate to keep the pressure plate unfolded, and a guide wheel to guide the sleeve removal tool into the safety injection pipe, a horizontal movement carrier including bodies connected to each other by a link, a seating rod for seating of the sleeve removal tool, and moving wheels for movement of the horizontal movement carrier, and a vertical movement carrier including first and second anti-separation bars to prevent separation of the horizontal movement carrier.