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 release solvent composition for releasing a thermosetting resin coating film coated on a thermoplastic resin molded article, and the release solvent composition containing 1,1,2,2,3,3,4-heptafluorocyclopentane and aromatic alcohols and having no flash point.

Abstract: n-Propyl bromide based solvent compositions and methods for cleaning articles using said solvent compositions are provided. Such solvent composition comprise about 50 weight percent to 99 weight percent of n-propyl bromide, about 0.5 weight percent to 50 weight percent of alcohol, and at least 0.005 weight percent of a surfactant. Such solvent compositions remove at least one of water or water soluble contaminants. The solvent compositions and methods of the present invention are useful as a degreaser and/or cleaner in both for cold cleaning and hot rinsing systems for cleaning articles.

Abstract: Methods for cleaning articles using n-propyl bromide-based solvent compositions are provided. According to one method, an article to be cleaned is contacted with a solvent composition comprising about 50 weight percent to about 99 weight percent n-propyl bromide and about 0.5 weight percent to about 50 weight percent of an alcohol. Such methods remove at least one of water or water soluble contaminants. Such methods are useful as a degreaser and/or cleaner in both cold cleaning and hot rinsing systems for cleaning articles.

Abstract: A method for purifying an aqueous alkaline solution, which comprises: bringing a fibrous activated carbon into contact with an aqueous alkaline solution to remove a metal component other than alkali metals and alkaline earth metals from the aqueous alkaline solution.

Abstract: A method for purifying an aqueous alkaline solution, which comprises: bringing a fibrous activated carbon into contact with an aqueous alkaline solution-to remove a metal component other than alkali metals and alkaline earth metals from the aqueous alkaline solution.

Abstract: A coaxial cable connection assembly includes a cable tap connector for engaging with the coaxial cable, a transceiver for transmitting and receiving information signals to and from the coaxial cable via the cable tap connector, a drop cable connector for electrically connecting the transceiver to a station device, and two matable coupling members for engaging and electrically connecting the transceiver with the cable tap connector. The tap connector has an axis along which the coaxial cable is disposed when the connector is engaged with the coaxial cable. The tap connector also has an outer face substantially parallel to the axis thereof, and includes outer and center conductor contact members for respective electrical connections with the outer and center conductors of the coaxial cable. The transceiver includes a casing having first and second intersecting faces. The drop cable connector is mounted on the first face of the transceiver.