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WO/2024/014371A1 |
The purpose of the present invention is to manufacture a zinc-plated steel sheet that is free of pickups and that has a stable quality. In this method for heating a steel plate, a steel plate passes through a direct-fired heating furnace...
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WO/2024/013542A1 |
A hot rolled steel having a composition comprising the following elements, 5%≤Nickel≤16 %, 0.5%≤Aluminum≤3%, 0.1%≤Titanium≤1%, 4%≤Chromium≤15%, 0.0001% ≤ Carbon ≤ 0.03%, 0.002 % ≤ Phosphorus ≤ 0.02 %,0 % ≤ Sulfu...
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WO/2024/014484A1 |
The present invention addresses the problem of obtaining a low thermal expansion alloy having improved machinability. A low thermal expansion alloy according to the present invention contains, in terms of mass%, at most 0.050% of C, 0.30...
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WO/2024/009783A1 |
Provided is a technology whereby it becomes possible to highly accurately control a steel strip temperature on the heated strip outlet side and a steel strip temperature on the isothermal heating furnace outlet side in the hot-rolled ann...
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WO/2024/009564A1 |
Provided is a seamless stainless steel pipe provided with both high strength and excellent low-temperature toughness and corrosion resistance. This seamless stainless steel pipe has: a prescribed component composition; by volume, at leas...
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WO/2024/009812A1 |
This hot-rolled steel sheet has a desired chemical composition and has a metal structure which contains, in terms of area%, at least 10% of bainite, at least 10% of tempered martensite, a total of 70-96% of bainite and tempered martensit...
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WO/2024/008331A1 |
The invention relates to a method for generating a hardness profile on a steel workpiece which has a base hardness (c) and, starting from the surface of the workpiece, is hardened as far as a first depth (d15) to a first hardness value (...
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WO/2024/010232A1 |
The present invention relates to a differential heat treatment method for a forming roller, which can extend the lifetime of a forming roller and simultaneously improve productivity by differential heat treatment of the inner circumferen...
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WO/2024/009565A1 |
Provided is a seamless stainless steel pipe having high strength, excellent low-temperature toughness, and corrosion resistance. This seamless stainless steel pipe has a specific component composition and contains, by volume percentage, ...
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WO/2024/008480A1 |
A method for improving temperature longitudinal homogeneity of a steel strip (100), in particular a low carbon alloyed steel strip (100) dedicated to liquid metal coating, continuously running at a line speed in a temperature homogenizat...
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WO/2024/008761A1 |
The present disclosure relates to methods for manufacturing a unitary a bumper beam assembly of a vehicle. The method comprises providing a plurality of blanks, joining the blanks to each other to form a combined blank, and deforming the...
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WO/2024/004613A1 |
The present invention addresses the problem of suppressing deformation such as edge waves, center waves, and warping from occurring in an ultra-thin (50 μm or less in thickness) iron–nickel alloy foil, and the purpose of the present i...
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WO/2024/005283A1 |
The present invention provides a cold-rolled steel sheet comprising 0.23-0.35 wt% of carbon (C), 0.05-0.5 wt% of silicon (Si), 0.3-2.3 wt% of manganese (Mn), greater than 0 and less than or equal to 0.02 wt% of phosphorus (P), greater th...
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WO/2024/002728A1 |
An austenitic stainless steel having the following composition, in percent by weight (wt.-%): C equal to or less than 0.06, Si 0.1 – 1, Mn 3 – 5, Cr 20.5 – 23.5, Ni 11 – 15, Mo 1 – 4, Nb 0.50-0.70, N 0.40-0.60, P equal to or le...
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WO/2024/004142A1 |
This mobile quenching device performs mobile quenching on a shaft body in which a large-diameter part having a relatively large outside diameter and a small-diameter part having a relatively small outside diameter adjoin each other acros...
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WO/2024/004027A1 |
This traverse hardening device performs traverse hardening on a shaft-like body in which a large-diameter portion having a relatively large outer diameter and a small-diameter portion having a relatively small outer diameter are contiguo...
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WO/2024/003593A1 |
A steel part for the transmission system of an automobile comprising of the following elements, 0.2%≦C≦0.35%; 1.0%≦Mn≦1.6%; 0.2%≦Si≦0.7%; 0.001%≦Al≦0.1%; 0.01%≦Mo≦0.5%; 0.020%≦Nb≦0.06%; 1%≦Cr≦1.5%; 0≦P≦ 0....
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WO/2023/246799A1 |
Disclosed in the present invention are a seamless steel tube used for an electric motor shaft and having high strength and toughness and good processing performance, and a manufacturing method therefor. The seamless steel tube comprises ...
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WO/2023/249295A1 |
A method for manufacturing a non-oriented electrical steel sheet according to one embodiment of the present invention comprises the steps of: providing a steel material containing silicon (Si), manganese (Mn), and aluminum (Al); hot-roll...
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WO/2023/246905A1 |
The present invention provides a high-hole-expansion-rate and ultrahigh-plasticity steel and a manufacturing method therefor. The steel comprises the following components in percentage by weight: C: 0.10-0.35%, Si: 0.8-2.0%, Mn: 1.0-2.5%...
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WO/2023/246359A1 |
Disclosed in the present invention is a medium- and low-carbon pearlite steel rail welding method. The method comprises the following steps: welding multiple steel rails made of a medium- and low-carbon pearlite steel rail base material;...
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WO/2023/247507A1 |
The invention relates to a shaped sheet-metal part with a steel substrate and an aluminium-based anticorrosive coating arranged on at least one side of the steel substrate. The anticorrosive coating here comprises an Al base layer and an...
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WO/2023/248389A1 |
An apparatus for cooling a metal strip according to the present invention is used for the purpose of cooling a traveling metal strip; and this apparatus for cooling a metal strip comprises a plurality of nozzles which are each configured...
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WO/2023/246941A1 |
An automotive structural steel having a yield strength of ≥1000 MPa and a manufacturing method therefor. The steel comprises, in percentage by weight, the components of: 0.15-0.23% of C, 0.12-0.5% of Si, 1.6-2.4% of Mn, 0.001-0.004% of...
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WO/2023/248922A1 |
The present invention allows an electromagnetic steel sheet having Al appropriately diffused therein to be fabricated at a relatively low cost. Disclosed is a steel material processing method involving subjecting a steel material for the...
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WO/2023/248549A1 |
The quenching method is for workpieces that include lace and are provided with a workpiece through-hole. The quenching method has a step that prepares a press quenching device capable of switching between a restraint state in which the w...
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WO/2023/246950A1 |
A spring steel and a spheroidizing annealing method therefor. The method comprise the following steps of: loading a hot-rolled state spring steel into a heat treatment furnace, and rapidly heating same to a two-phase region temperature; ...
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WO/2023/243133A1 |
Provided is a ferritic stainless steel having excellent high-temperature proof stress and excellent oxidation resistance. The ferritic stainless steel has a given composition and has a solute Nb content exceeding 1.00 mass%.
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WO/2023/243533A1 |
Provided is an Fe-Mn alloy having low magnetic susceptibility and excellent workability. The Fe-Mn alloy contains, in mass%, more than 30.0% to 35.0% of manganese (Mn), 1.0% to 8.0% of aluminum (Al), 0.5% to 1.5% of carbon (C), 5.0% to 1...
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WO/2023/241574A1 |
Disclosed is a method for manufacturing a low-magnetostriction oriented silicon steel plate, comprising the steps of: (a) smelting and casting; (b) heating; (c) normalizing; (d) cold rolling; (e) decarburization annealing; (f) finished p...
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WO/2023/243323A1 |
The present invention provides a stainless steel sheet for brake disc rotors, the stainless steel sheet having a composition that contains, on a mass basis, not less than 0.001% but less than 0.080% of C, 0.0010-0.5000% of N, 0.01-5.00% ...
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WO/2023/243710A1 |
Provided are: a Fe-Ni-based alloy thin plate which can keep the thermal shrinkage amount thereof at the same level as those of the conventional materials and can be reduced in an amount of width warpage; and a method for producing the Fe...
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WO/2023/243730A1 |
Provided is a high-strength steel member that has reduced delayed fracture sensitivity at 1100 MPa or greater. During the manufacture, using a high-strength steel member in which chromium–molybdenum steel that includes 0.30–0.50% o...
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WO/2023/241700A1 |
Disclosed in the present invention is a high-strength and high-toughness easy-cutting seamless steel tube for a motor shaft, which contains Fe and inevitable impurity elements, and further contains the following chemical elements in perc...
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WO/2023/241471A1 |
An anti-delayed cracking and wear-resistant steel plate and a manufacturing method therefor. The steel plate comprises the following chemical elements in wt%: C: 0.17-0.22%, Si: 0.1-0.3%, Mn: 1.0-1.4%, P≤0.015%, S≤0.005%, Al: 0.018-0...
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WO/2023/239198A1 |
The present invention relates to an ultra high strength steel sheet and to a method for manufacturing same and, more specifically, to a steel sheet having excellent elongation and hole expansion ratio, as well as excellent strength, and ...
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WO/2023/236606A1 |
Disclosed is an electromagnetically inductive back-heating robot, comprising a frame structure, lifting hooks, wheels, driving motors, upper electromagnetic bars, lower electromagnetic bars, and a coil assembly. Four wheels are provided,...
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WO/2023/234700A1 |
The present invention pertains to a non-quenched and tempered steel wire rod with improved machinability and toughness, and a method for manufacturing same. This non-quenched and tempered steel wire rod contains, in mass%, 0.3-0.5% of C,...
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WO/2023/234508A1 |
The present invention relates to a hot stamping component, and provides a hot stamping component comprising: a base metal; a decarburization layer arranged on the base metal; and an internal oxide layer arranged on the decarburization la...
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WO/2023/234632A1 |
A method for manufacturing a non-oriented electrical steel sheet, according to an embodiment of the present invention, comprises the steps of: first hot-rolling of each of a first steel material and a second steel material which contain ...
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WO/2023/232159A1 |
The present invention provides a method for the heat treatment of an austenitic stainless steel bar by means of induction heating. The method comprises: placing a hot-rolled austenitic stainless steel bar on a conveying roller, and then ...
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WO/2023/233036A1 |
According to the invention a high strength, cold rolled steel flat product with reduced sensitivity to hydrogen embrittlement comprises a steel substrate which, in % by mass, consists of C: 0.20 to 0.40 %, Mn: 1.50 to 3.00 %, Si: 0.90 to...
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WO/2023/233186A1 |
A High Manganese hot rolled steel having a composition comprising of the following elements 0.8 % ≤ Carbon ≤ 1.3 %, 9.5 % ≤ Manganese ≤ 22%,0.01% ≤ Silicon ≤ 3%, 0.01% ≤ Aluminum ≤ 3%, 0.03 % ≤ Phosphorus ≤ 0.1%, 0.03...
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WO/2023/234337A1 |
This hot-stamp formed article has a prescribed chemical composition, and at a location 1/4 of the sheet thickness from the surface thereof and in a prior-austenite texture, the maximum pole density of an orientation group, expressed by E...
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WO/2023/234509A1 |
The present invention provides a hot stamping part, which comprises: a base material; a decarburized layer disposed on the surface of the base material; and an inner oxide layer disposed on the surface of the decarburized layer, wherein ...
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WO/2023/233450A1 |
This cooling liquid is for cooling a steel sheet, and contains a first ion that can change, in a solution, into a first substance that generates a reducing gas through decomposition, and a second ion that can form, through reaction with ...
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WO/2023/234503A1 |
An ultra-high strength cold-rolled steel sheet of the present invention comprises, in weight%, 0.23% to 0.40% of carbon (C), 0.05% to 1.0% of silicon (Si), 0.5% to 3.0% of manganese (Mn), 0.01% to 0.12% of vanadium (V), 0.01% to 0.3% of ...
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WO/2023/235169A1 |
A method of treating a valve body is disclosed herein. The method includes using a medium carbon steel, and treating the valve body to a carburizing heating step, an intermediate annealing step, a hardening step, and a tempering step. Th...
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WO/2023/233779A1 |
The purpose of the present invention is to provide a hot-pressed member in which the amount of hydrogen penetrated during a hot pressing process is reduced, from which the penetrated hydrogen can be released within a short time, and whic...
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WO/2023/234702A1 |
The present invention relates to a non-quenched and non-tempered steel wire rod having improved machinability and toughness and to a method for manufacturing same, the non-quenched and non-tempered wire rod, according to the present inve...
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