Abstract: A TIG welded joint in a high-Mn content steel material that can be formed with reduced occurrence of hot cracking during the welding process and has high strength and excellent cryogenic impact toughness. In the TIG welded joint, the high-Mn content steel material has a chemical composition including, by mass %, C: 0.10 to 0.80%, Si: 0.05 to 1.00%, Mn: 18.0 to 30.0%, P: 0.030% or less, S: 0.0070% or less, Al: 0.010 to 0.070%, Cr: 2.5 to 7.0%, N: 0.0050 to 0.0500%, and O: 0.0050% or less, the balance being Fe and incidental impurities, and a weld metal has a chemical composition including C: 0.10 to 0.80%, Si: 0.05 to 1.00%, Mn: 15.0 to 30.0%, P: 0.030% or less, S: 0.030% or less, Al: 0.100% or less, Cr: 6.0 to 14.0%, and N: 0.100% or less, the balance being Fe and incidental impurities.

Abstract: A TIG welding filler metal is provided that has a composition including, by mass %, C: 0.20 to 0.80%, Si: 0.15 to 0.90%, Mn: 15.0 to 30.0%, P: 0.030% or less, S: 0.030% or less, Cr: 6.0 to 15.0%, and N: 0.120% or less, the balance being Fe and incidental impurities. Where necessary, the filler metal may contain one or two selected from Ni and Mo, may further contain one, or two or more selected from V, Ti, and Nb, and may additionally contain one, or two or more selected from Cu, Al, Ca, and REM. This configuration reduces the occurrence of welding cracks during TIG welding, that is, realizes excellent hot crack resistance, and allows for easy production of a weld joint having high strength and excellent cryogenic impact toughness.

Abstract: A submerged arc welded joint in a high-Mn content steel material that can be formed with reduced occurrence of hot cracking during the welding process and has high strength and excellent cryogenic impact toughness. In the welded joint, the high-Mn content steel material has a chemical composition including, by mass %, C: 0.10 to 0.80%, Si: 0.05 to 1.00%, Mn: 18.0 to 30.0%, P: 0.030% or less, S: 0.0070% or less, Al: 0.010 to 0.070%, Cr: 2.5 to 7.0%, N: 0.0050 to 0.0500%, and O: 0.0050% or less, the balance being Fe and incidental impurities, and a weld metal has a chemical composition including C: 0.10 to 0.80%, Si: 0.05 to 1.00%, Mn: 15.0 to 30.0%, P: 0.030% or less, S: 0.030% or less, Al: 0.100% or less, Cr: 6.0 to 14.0%, and N: 0.100% or less, the balance being Fe and incidental impurities.

Abstract: A submerged arc welding wire is provided that has a composition including, by mass %, C: 0.20 to 0.80%, Si: 0.15 to 0.90%, Mn: 15.0 to 30.0%, P: 0.030% or less, S: 0.030% or less, Cr: 6.0 to 15.0%, and N: 0.120% or less, the balance being Fe and incidental impurities. Where necessary, the wire may contain one or two selected from Ni and Mo, may further contain one, or two or more selected from V, Ti, and Nb, and may additionally contain one, or two or more selected from Cu, Al, Ca, and REM.

Abstract: Provided is an article sorting device that can handle various containers without necessarily requiring a change of parts. The article sorting device includes a rotating table, a pocket, a guide, a position control unit, and a sorting unit. The position control unit controls a radial position of the pocket to a specified position that is a first position or a second position located radially outward relative to the first position. The sorting unit guides an article to different paths depending on whether the radial position of the pocket is at the first position or the second position when a circumferential position of the pocket reaches a sorting position.

Abstract: Provided is a transport device that can transport two or more types of articles without necessarily requiring a change of parts. The transport device includes a guide extending in a transport direction of an article, and a holding unit configured to hold the article between the holding unit and the guide and to move in the transport direction. The holding unit includes two or more roller units. In each roller unit, two or more rollers, including a first roller and a second roller with a diameter larger than a diameter of the first roller, are aligned along an axial direction. The holding unit is movable in the axial direction. The holding unit is moved in the axial direction to thereby switch the rollers abutting the article among the two or more rollers.

Abstract: An object is to provide an air bacteria removal device in which leakage of electrolytic water to the outside is eliminated as much as possible and in which maintenance can easily be performed, the air bacteria removal device comprises a main body including a water storage section having a sealed or semi-sealed structure in which the electrolytic water is stored, and a water absorption member for supplying the electrolytic water from the water storage section to an air-liquid contact member by use of a capillary phenomenon, the air-liquid contact member and the water absorption member are integrated and detachably attached to the main body, the water absorption member attached to this main body enters the water storage section, and is submerged into the electrolytic water, and the water storage section is brought into a sealed or semi-sealed state.