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WO/2023/085541A1 |
One embodiment of the present invention provides a method for manufacturing upper and lower cabinet doors, the method comprising the steps of: preparing a steel alloy; processing the surface of the steel alloy by means of at least one pr...
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WO/2023/083679A1 |
The invention relates to a method for producing a steel sheet for packages, comprising a two-layer recrystallization structure. The method has the following steps: • providing a cold-rolled steel sheet made of a steel with a carbon con...
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WO/2023/086673A1 |
An integrated welding and thermal processing method includes heating adjoining surfaces, at least one of which is a creep strength enhanced ferritic (CSEF) steel alloy, to a sufficiently high temperature above their melting points to for...
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WO/2023/079344A1 |
Steel sheet suitable for a multistep hot stamping process and associated manufacturing process, said steel sheet having a composition comprising, by weight percent: C : 0.13 - 0.4 %, Mn : 0.4 – 4.2 %, Si : 0.1 – 2.5%, Cr ≤ 2 %, Mo ...
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WO/2023/077838A1 |
A medium-strength steel rail. The weight percentages of the chemical components of the medium-strength steel rail are: 0.70-0.90% of carbon, 0.08-0.65% of silicon, 0.69-1.31% of manganese, 0.10-0.25% of chromium, less than or equal to 0....
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WO/2023/080135A1 |
A welded rail according to an embodiment of the present invention, which has excellent fatigue damage resistance and breakage resistance at a weld joint part, comprises multiple rail parts and a weld joint part where the rail parts are j...
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WO/2023/080632A1 |
The present invention relates to a high-strength steel sheet used for a vehicle structure member and, more specifically, to a high-strength steel sheet having excellent crashworthiness and formability and a method for manufacturing same.
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WO/2023/079454A1 |
Steel sheet suitable for a multistep hot stamping process and associated manufacturing process, said steel sheet having a composition comprising, by weight percent: C : 0.13 - 0.4 %, Mn : 0.4 – 4.2 %, Si : 0.1 – 2.5%, Cr ≤ 2 %, Mo ...
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WO/2023/080811A1 |
The invention relates to the manufacture of spherical metal articles. The present method consists in through-heating appropriately sized round workpieces in a medium-frequency induction device, rolling said workpieces into balls in a ske...
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WO/2023/080064A1 |
This shaft member is made of steel and has a surface. The steel contains 0.10-0.40 mass% (inclusive) of carbon, 0.10-2.50 mass% (inclusive) of silicon, 0.30-1.20 mass% (inclusive) of manganese, 0.40-3.00 mass% (inclusive) of chromium, an...
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WO/2023/080029A1 |
Provided is a steel material for sliding components that has excellent sliding properties and workability. The steel material for sliding components: comprises a steel material having 0.30%–0.60% by mass C content; has a structure that...
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WO/2023/079922A1 |
Provided is an annealing facility in which a steel sheet that has been cold-rolled is subjected to continuous finish annealing by passing the steel sheet through an annealing furnace having at least a first zone, a second zone and a thir...
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WO/2023/075660A1 |
A flat wire (3) and a saw blade (1) obtainable from the flat wire (3) are disclosed. The flat wire (3) is made of a steel comprising 0.45 - 0.70 wt.-% of C, 1.2 - 2.5 wt.-% of Si, 0.2 - 1.1 wt.-% of Mn, 0.5 - 1.4 wt.-% of Cr, 0.05 - 0.40...
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WO/2023/074653A1 |
The present invention provides: an alloy steel for a rolling bearing component with which it is possible to obtain insulation performance solely through a normal steel material heating process without forming an oxide coating using a ded...
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WO/2023/073406A1 |
A hot rolled steel sheet having a composition comprising of the following elements 0.38% ≤ Carbon ≤ 0.5 %, 1%≤ Manganese ≤ 2%, 0.1%≤ Silicon ≤ 0.7%, 0 01%≤ Aluminum ≤ 0.1%, 0.3% ≤ Chromium ≤ 1%, 0.002% ≤ Boron ≤ 0...
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WO/2023/074467A1 |
A hot-rolled steel strip annealing method is provided that can control with high accuracy the steel strip temperature on the heating zone exit side, and more specifically, the steel strip temperature on the soaking furnace exit side, in ...
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WO/2023/075032A1 |
The present invention provides a manufacturing method for hot-stamped parts, comprising the steps of: feeding a blank into a heating furnace; heating the blank; and transferring the heated blank from the heating furnace to a mold, wherei...
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WO/2023/071740A1 |
A production method for controlling a high-quality surface of a quenching plate, comprising the following steps: shot blasting; quenching heating: when residual oxygen exceeds 300 PPm, a nitrogen valve is fully opened and continues until...
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WO/2023/075283A1 |
The present invention relates to a ferritic stainless steel with excellent clad sheet workability, comprising, by wt%, 0.0005-0.02% of C, 0.005-0.02% of N, 0.01-1.0% of Si, 0.01-1.0% of Mn, 0.001-0.05% of P, 10.0-25.0% of Cr, 0.01-0.5% o...
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WO/2023/073410A1 |
The invention deals with a cold rolled and heat treated steel sheet comprising in weight percent: 0.2 % ≦ C ≦ 0.35 %; 0.5 % ≦ Mn ≦ 1.5 %; 0.1% ≦ Si ≦ 0.6 %; 0% ≦ Al ≦ 0.1 %; 0.01% ≦ Ti ≦ 0.1%; 0.0001% ≦ B ≦ 0.010%...
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WO/2023/075391A1 |
The present invention pertains to a hot-rolled ferritic stainless steel sheet having excellent formability, which has an R-bar value of at least 1.08 and satisfies TS/YS≤1.5 representing the ratio of tensile strength (TS) to yield stre...
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WO/2023/071690A1 |
The present invention relates to a steel plate stack transport system, comprising a traversing track and steel plate transport vehicles running on the traversing track. The guiding path of the traversing track covers matched heat treatme...
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WO/2023/073411A1 |
A cold rolled and heat treated steel sheet comprising of the following elements 0.2 % ≦ C ≦ 0.35 %; 0.2 % ≦ Mn ≦ 1.2 %; 0.1% ≦ Si ≦ 0.9 %; 0% ≦ Al ≦ 0.1 %; 0.2% ≦ Cr ≦ 0.8 %; 0.01% ≦ Nb ≦ 0.1%; 0.1% ≦ Ni ≦ 0.9...
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WO/2023/075033A1 |
The present invention provides a hot stamping part having a tensile strength of 1350 Mpa or more, wherein the hot stamping part has a microstructure including a prior austenite grain (PAG), and the average grain size of the prior austeni...
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WO/2023/074476A1 |
Provided is a production method for obtaining a grain-oriented electrical steel sheet having excellent magnetic properties and in which an underlayer film generation state is satisfactory. In said method, an annealing-separation agent co...
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WO/2023/074115A1 |
Provided is a hot-pressed member that has excellent quality appearance and corrosion resistance after coating. A hot-pressed member comprising a steel sheet, a plating layer disposed on at least one surface of the steel sheet and contain...
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WO/2023/074584A1 |
Provided is a laminated core (10) provided with: a laminate (10A) of electromagnetic steel plates (W); and, a granular oxide that contains magnetite and covers a side surface (20) of the laminate (10A), the contact angle of water droplet...
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WO/2023/075287A1 |
Disclosed in the present specification are: a ferritic stainless steel having improved elongation even if batch annealing is omitted; and a manufacturing method therefor. A ferritic stainless steel according to one embodiment of the pres...
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WO/2023/074114A1 |
Provided is a hot-pressed member which has excellent corrosion resistance after coating, and particularly excellent corrosion resistance after coating when a zirconium chemical conversion treatment has been applied, and in which microcra...
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WO/2023/074189A1 |
This hot-stamp-molded object has a predetermined chemical composition and has a metal structure including, in area percentage, 90-100% of martensite and 0-10% of remaining structures. Of all martensites, the proportion of martensites, ha...
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WO/2023/072686A1 |
The invention relates to a method for producing a dual-phase steel strip (245), to a dual-phase steel strip (245) and to a combined casting and rolling system (10) for producing the dual-phase steel strip (245), wherein the combined cast...
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WO/2023/066087A1 |
Provided in the present invention is a hot stamping forming method for a pre-coated steel plate. The method comprises: carrying out a preliminary heat treatment on a pre-coated steel plate before hot stamping forming, wherein the prelimi...
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WO/2023/068763A1 |
The present invention relates to a steel sheet used in automobiles, etc., and to a steel sheet that has high strength and high formability and is eco-friendly manufactured, and a manufacturing method therefor.
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WO/2023/068369A1 |
This steel plate has a prescribed chemical composition, the microstructure thereof comprising, by area ratio, 5.0% or less ferrite and a total of greater than 90.0% martensite and tempered martensite, with the remainder being one or more...
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WO/2023/067371A1 |
This patent relates to a method for depositing metallic coatings on a substrate comprising : - an annealing step, in an annealing furnace, forming on said substrate, a ferritic surface layer having a thickness from 10 µm to 50 µm and a...
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WO/2023/068368A1 |
This steel plate has a prescribed chemical composition and has a microstructure containing, in terms of area ratio, 5.0% or less of ferrite and over 90.0% in total of martensite and tempered martensite, the balance being one or more of b...
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WO/2023/067406A1 |
This patent relates to a method for depositing metallic coatings on a substrate comprising : - an annealing step, in an annealing furnace, forming on said substrate, a ferritic surface layer having a thickness from 10 µm to 50 µm and a...
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WO/2023/069496A1 |
A method of forming a bearing cage is generally disclosed herein. The method includes (i) forming a bearing cage from either titanium or a titanium alloy; and (ii) applying a plasma-nitriding treatment to at least one surface of the bear...
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WO/2023/062805A1 |
This structural member comprises a plurality of high strength steel pipes, and is characterized in that: the high strength steel pipes each have a hardened section, which is a central portion of the pipe, and a non-hardened portion over ...
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WO/2023/063288A1 |
This cold-rolled steel sheet has a prescribed chemical composition and is such that the metal structure at a position 1/4-3/4 of the sheet thickness in the sheet thickness direction from the surface includes, by volume, 0-10.0% of retain...
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WO/2023/063048A1 |
This hot-stamp-molded object comprises a steel material and a plating layer. The chemical composition of the plating layer contains, in mass%, 0-70% of Al, 10-60% of Fe, 0-20% of Si, and a total of 0.00001-0.3% of a C-group element which...
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WO/2023/063014A1 |
This hot-rolled steel plate has a prescribed chemical composition, has a metal structure having, in area%, a total of martensite and tempered martensite at more than 92.0% but no more than 100.0%, retained austenite at less than 3.0%, an...
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WO/2023/063010A1 |
This hot-rolled steel plate: has a prescribed chemical composition; has a metal structure having, in area%, retained austenite at less than 3.0%, ferrite at at least 15.0% to less than 60.0%, and pearlite at less than 5.0%; has, accordin...
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WO/2023/063098A1 |
The purpose of the present invention is to provide a resistance spot-welded joint and a resistance spot welding method therefor. The present invention is a resistance spot-welded joint having a resistance spot-welded part which is formed...
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WO/2023/063369A1 |
Provided is a non-oriented electromagnetic steel sheet comprising a base steel plate and an insulating coating formed on the surface of the base steel plate, wherein the base steel plate has a chemical composition containing, in mass%, 0...
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WO/2023/063097A1 |
The purpose of the present invention is to provide a resistance spot welding joint, and a resistance spot welding method for the same. The present invention is a resistance spot welding joint comprising a plurality of resistance-spot-wel...
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WO/2023/063678A1 |
The present invention relates to a graphite steel wire rod, steel wire and graphite steel, which have excellent cutting performance, and manufacturing methods therefor, and, more specifically, to: a graphite steel wire rod, steel wire an...
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WO/2023/063350A1 |
This hot-rolled steel plate has a prescribed chemical composition and metal structure, wherein: the pole density of the ｛001｝＜１１０＞, ｛１１１｝＜１１０＞, and ｛１１２｝＜１１０＞ orientation group is 2.0...
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WO/2023/063347A1 |
This hot-rolled steel sheet has a prescribed chemical composition and metallographic structure; has an extreme density for the orientation group {001}<110>, {111}<110>, and {112}<110> in the texture in a surface layer region of at least ...
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WO/2023/056497A1 |
The invention relates to a measuring system (4) for determining the temperature of a heat treatment material (2) in a continuous furnace (1), comprising a support means (7), a data processing and/or data storage device (11) and at least ...
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