NAKAYAMA STEEL WORKS ,LTD.
|NAKAYAMA STEEL WORKS ,LTD. Patent applications|
|Patent application number||Title||Published|
|20130263973||Ni-Based Amorphous Alloy With High Ductility, High Corrosion Resistance and Excellent Delayed Fracture Resistance - [Problem] To prepare an amorphous alloy as an authentic industrial-use material with a wide range of applications by solving various problems such as delayed fracture and ductility.||10-10-2013|
|20130011570||APPARATUS AND METHOD FOR FORMING AMORPHOUS COATING FILM - An apparatus for forming an amorphous coating film by jetting flame containing particles of a flame spray material from a flame spray gun toward a base material, causing the particles to be melted by the flame, and cooling both the particles and the flame with the means of a cooling gas before they reach the base material. The apparatus includes a tubular member provided among the path along which the flame is jetted that it surrounds the flame passing through a melting zone in which the particles are melted. The tubular member has a flow channel for the cooling gas, formed along and integrally to the tubular member.||01-10-2013|
|20120234438||Process for Production of Cold-Rolled Steel Sheet Having Excellent Press Moldability, and Cold-Rolled Steel Sheet - Provided are a cold-rolled steel sheet which undergoes a small load at the time of cold-rolling, has excellent press formability and high strength, and a method of manufacturing the cold-rolled steel sheet. A hot-rolled steel sheet having the composition comprising by mass %, 0.10 to 0.30 C, 0.2 or more Mn, 0.01 or more Ni, 0.5 to 2.5 Mn+Ni, 1.2 to 9.0 Cr, and Fe and unavoidable impurities as a balance, and has a tensile strength of 1000 MPa or less is subjected to pickling and, is subjected to cold rolling at a total rolling reduction of 60% or more thus forming a cold-rolled steel sheet. A final continuous annealing treatment is performed at a soaking temperature of 750° C. or above and at a cooling rate of 3° C./s to 100° C./s so that the cold-rolled steel sheet which has a tensile strength of 1280 MPa or more, breaking elongation of 3% or more, and a thickness of 0.05 to 0.60 mm is manufactured.||09-20-2012|
|20090246398||METHOD AND APPARATUS FOR FORMING AMORPHOUS COATING FILM - The present invention provides a method and an apparatus for forming, by spraying, a commonly known amorphous coating film, which is not limited to a metallic glass or the like. According to this invention, a flame containing metal particles is ejected toward a base material from a nozzle, such that the material particles are melted with the flame. Thereafter, the melted material particles and flame are cooled before they reach the base material. For this cooling process, a gas is externally ejected toward the flame, such that the gas can gradually approach the central line of the flame. Preferably, the particle size of the material particles in the flame is within a range of 10 to 100 μm.||10-01-2009|
Patent applications by NAKAYAMA STEEL WORKS ,LTD.