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WO/2023/198634A1 |
The invention relates to an annealing device (1), in particular an annealing furnace, for the oxidation-free heat treatment of a hot-rolled steel strip (3), which is provided for the production of an electric strip and/or stainless steel...
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WO/2023/199555A1 |
This steel sheet has a chemical composition containing, in terms of mass%, at most 0.0050% of C, at most 0.050% of Si, 0.007-1.00% of Mn, 0.020-0.200% of P, 0.005-0.050% of S, at most 0.010% of Al, 0.0100-0.1000% of O, 0.010-0.060% of Cu...
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WO/2023/199777A1 |
This hot-stamp formed article comprises a steel sheet. The steel sheet has a prescribed chemical composition. In the steel sheet, the average B-concentration in a region between a depth of 5.0 μm from the surface and a depth of 25.0 μm...
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WO/2023/199776A1 |
The present invention provides a hot stamp molded body which is provided with a steel sheet, wherein: the steel sheet has a specific chemical composition; the average B concentration in a region ranging from the depth of 5 µm from the s...
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WO/2023/198720A1 |
The present invention relates to a duplex stainless steel comprising the following elements in weight%: C max 0.030; Si max 0.30; Mn 0.20 to 2.50; P max 0.030; S max 0.030; Cr 28.5 to 30.5; Ni 6.0 to 8.0; Mo 0.70 to 3.00; W 2.00 to 4.40;...
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WO/2023/199638A1 |
This hot-stamp-formed article has a specified chemical composition, in which the standard deviation of crystal grain diameters of prior austenite grains in an internal region is 5.0 μm or less, the area ratio of bainite in a surface lay...
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WO/2023/194450A1 |
The invention relates to a method for producing hardened steel components, wherein a sheet metal blank is cut out from a galvanized or alloy-galvanized strip made of a hardenable steel alloy and the sheet metal blank is then cold-formed ...
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WO/2023/195518A1 |
This grain-oriented electromagnetic steel sheet comprises a base steel sheet and an insulating coating film that is formed on the surface of the base steel sheet. The insulating coating film comprises: an intermediate layer that is forme...
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WO/2023/195517A1 |
This grain-oriented electrical steel sheet includes a parent material steel sheet and an insulating coating film that is formed on the surface of the parent material steel sheet. The insulating coating film includes an intermediate layer...
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WO/2023/195495A1 |
The present invention provides a steel material which has a good balance between high strength and excellent fracture toughness. A steel material according to the present disclosure contains 0.10-0.45% of C, 1.00% or less of Si, 0.01-1.0...
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WO/2023/195494A1 |
The present invention provides a steel material having both high strength and superior fracture toughness. A steel material according to the present disclosure: contains 0.10-0.45% of C, 1.00% or less of Si, 0.01-1.00% of Mn, 0.001-0.100...
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WO/2023/195201A1 |
This quenching method is used for quenching a to-be-quenched object including a race provided with an object through-hole. The quenching method comprises: a step for preparing a quenching jig that is a rod; a step for suspending a plural...
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WO/2023/190200A1 |
The purpose of the present invention is to provide: a high-strength steel sheet which has a tensile strength of 980 MPa or more and excellent fatigue strength; and a method for producing this high-strength steel sheet. The present inve...
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WO/2023/188504A1 |
Provided is a steel sheet having a strength of at least 1310 MPa in TS as well as excellent delayed fracture resistance. The steel sheet has a predetermined composition and a composite microstructure composed of martensite and bainite, w...
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WO/2023/190963A1 |
A nanocrystal alloy ribbon is provided. According to this method for manufacturing a nanocrystal alloy ribbon, when an amorphous alloy ribbon is contacted with a heating body and heated, the heating body is heated to a heating temperatur...
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WO/2023/188713A1 |
Provided are: a steel foil for a current collector, the steel foil not easily causing buckling or bending by heat treatment at temperatures high enough to crystallize an active substance after an active substance layer is formed; and an ...
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WO/2023/189174A1 |
Provided is a hot-stamp-formed article which has a chemical composition formed from, by mass%, 0.40 to 0.70% C, 0.100% or less P, 0.0100% or less S, 0.0200% or less N, 0.0200% or less O, 0.0010 to 0.500% Al, 0.0010 to 0.100% Nb, 0.010 to...
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WO/2023/184782A1 |
Disclosed in the present invention is a manufacturing method for a hot forging-formed, composite-quenched and structure-refined high-strength bolt. The manufacturing method comprises hot forging forming and complete quenching, critical z...
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WO/2023/188536A1 |
A heating method according to the present invention is for quenching a coil spring, wherein: the method includes a securing step for securing one end of a coil spring to an outer circumferential surface of a first shaft member and securi...
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WO/2023/188539A1 |
The present invention provides: a steel sheet having 590 MPa or greater TS, high YS, excellent press formability (ductility, hole expandability, and bendability), and fracture resistance characteristics (bending fracture characteristics ...
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WO/2023/191090A1 |
[Problem] To make it easier to prvent adhesion of foreign matter to the surface of a steel sheet transportation roll. [Solution] A steel sheet transportation roll according to the present invention has a thermal spray coating located on ...
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WO/2023/191020A1 |
Provided are technical features of a galvanized steel sheet that has a high yield ratio, excellent bending property and stretch flangeability, excellent hydrogen embrittlement resistance, and a TS that is more than or equal to 780 MPa an...
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WO/2023/190409A1 |
Provided is a mechanical structural part in which strain after an induction heat treatment is reliably reduced to eliminate the problem of eccentricity in parts having a large aspect ratio, particularly parts having an axially shaped por...
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WO/2023/188148A1 |
A method for manufacturing an oriented electromagnetic steel sheet according to the present invention comprises: a cold rolling step in which a cold rolled steel sheet is manufactured; a finish annealing step in which the cold rolled ste...
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WO/2023/188505A1 |
Provided is a steel sheet that simultaneously achieves a strength of TS: 1310 MPa or greater and excellent workability. The steel sheet has a specific component composition and a composite structure of primarily martensite and bainite. T...
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WO/2023/191021A1 |
The present invention provides technology relating to a galvanized steel sheet which has a high yield ratio, excellent bendability, and excellent hydrogen embrittlement resistance, and in which TS is not less than 980 MPa but less than 1...
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WO/2023/189563A1 |
This martensite stainless steel for high-pressure hydrogen component has a chemical configuration comprising, in terms of mass%, 0.01-0.05% of C; 0.70% or less of Is; 1.10% or less of Mn; 0.04% or less of P; 0.030% or less of S; 4.00-5.7...
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WO/2023/189175A1 |
The present invention provides a steel sheet for hot stamping, the steel sheet having a specific chemical composition, while having a metal structure that contains, in area ratios, 10% or more of ferrite and 10% or more of pearlite, with...
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WO/2023/190806A1 |
The purpose of the present invention is to provide a magnesium oxide which is for an annealing separating agent and which is used for obtaining a grain-oriented electrical steel sheet having excellent coating characteristics. The prese...
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WO/2023/189183A1 |
Provided is a hot-stamp-formed article having a specific chemical composition, the hot-stamp-formed article containing, by area ratio, 90% or more in total of at least one of martensite, bainite, and tempered martensite, and having a mic...
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WO/2023/190011A1 |
A seamless steel tube having the chemical composition set forth in the specification, the chemical composition satisfying [5C+Mo+Cr≥1.00], while also satisfying [GN-1.96×(Mn+70P+100N)≥7.50] and [GN-1.37×(Mn+85P-30Ca)≥8.90] in rel...
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WO/2023/188594A1 |
The present invention provides an electromagnetic steel sheet that is provided with an insulating film which exhibits a low iron loss and an excellent close-adhesiveness with respect to a forsterite film. For that purpose, provided is a ...
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WO/2023/189612A1 |
This machine component (10) has surfaces, and is formed from steel that has undergone quenching and tempering. The machine component is provided with a nitrided layer (11) formed on the surfaces (10a, 10b, 10c, 10d). The steel contains 0...
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WO/2023/186585A1 |
The invention relates to a method for producing a metal product in a plurality of successive process steps, each with an assigned set of manipulated variables, the method having the following steps: measuring an actual property of the me...
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WO/2023/188643A1 |
Provided are: a galvanized steel sheet having exceptional uniform deformation characteristics and local deformation characteristics, the galvanized steel sheet having a tensile strength of 980 MPa or greater; a member; and methods for pr...
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WO/2023/188792A1 |
Provided is a hot press member comprising excellent spot welding properties and cut-part corrosion resistance. The hot press member comprising: a steel plate; a coating layer disposed to at least one surface of the steel plate; and an ox...
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WO/2023/190645A1 |
Provided is a method for annealing a hot-rolled steel strip, the method controlling the annealing temperature with high accuracy to obtain good magnetic properties throughout the length of the steel strip. In a method for annealing a hot...
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WO/2023/190867A1 |
This steel member has a predetermined chemical composition. In the steel member, when a position at a depth of 1/4 of the thickness in the thickness direction from the surface is defined as a 1/4 depth position, the maximum B content in ...
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WO/2023/188441A1 |
This martensitic stainless steel to be used in a high-pressure hydrogen component has a chemical component composition which: comprises, in mass%, C in the amount of 0.01-0.05%, Si in the amount of 0.70% or less, Mn in the amount of 1.10...
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WO/2023/189142A1 |
The present invention addresses the problem of providing an electronic equipment casing having electromagnetic shielding properties in a high-frequency band up to the GHz band, as well as having strength and workability even when the thi...
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WO/2023/182266A1 |
A projection weld joint manufacturing method according to the present disclosure comprises: pressing a projection portion of a steel member, which includes the projection portion on a flat surface thereof, against a surface of a hot-stam...
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WO/2023/181821A1 |
Provided are a steel sheet dehydrogenation device, a system for manufacturing a steel sheet, and a method for manufacturing a steel sheet, with which it is possible to manufacture a steel sheet having exceptional hydrogen embrittlement r...
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WO/2023/180543A1 |
The invention relates to a method for heating a sheet-steel blank or a pre-shaped sheet-steel component having a zinc coating or a zinc-alloy coating, in which method: the sheet-steel component or the sheet-steel blank is guided through ...
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WO/2023/182333A1 |
The purpose of the present invention is to provide a gear component in which the surface layer of the dedendum has a high hardness and the bending fatigue strength is excellent. The gear component according to the present invention is ...
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WO/2023/180082A1 |
Disclosed is an inductor (1) for heating a vehicle wheel (2), which has a plurality of windings (1a) provided to heat an inner region of a rim (2a) of the vehicle wheel (2) and at least one winding (1d) provided for heating a rim flange ...
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WO/2023/181820A1 |
The present invention provides a continuous annealing apparatus which is capable of producing a steel sheet that has excellent hydrogen embrittlement resistance characteristics. A continuous annealing apparatus (100) according to the pre...
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WO/2023/181641A1 |
The purpose of the present invention is to provide: a high-strength steel sheet which has a TS of 980 MPa or more, while having excellent press moldability, excellent flatness in the sheet width direction and excellent processing embritt...
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WO/2023/181640A1 |
The purpose of the present invention is to provide a high strength steel sheet and a method for manufacturing the same, the high strength steel sheet having the TS of more than or equal to 1180 MPa and the YR of more than or equal to 85%...
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WO/2023/181485A1 |
Provided is a steel sheet which is less prone to LME cracking, has a composition containing 1.0 mass% or less of Si, achieves a strength of at least 1470 MPa in TS, and has excellent formability and excellent delayed fracture resistance....
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WO/2023/182279A1 |
The present invention provides a cold-rolled steel sheet which has high strength and excellent bore expanding properties. A cold-rolled steel sheet according to the present invention has a chemical composition that contains, in mass%, 0....
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