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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/2023/073410A1 |
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/2023/071690A1 |
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/2023/071776A1 |
The present invention discloses a method for preparing a special high wear-resistance steel strip NGNM01 for pipeline transportation, and relates to the technical field of steel production. By means of a strict "triple-control operation"...
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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/2023/071900A1 |
Disclosed are a quenching oil membrane breaking additive and quenching oil containing the membrane breaking additive. The membrane breaking additive is an unsaturated fatty acid polyol ester; and the unsaturated fatty acid polyol ester i...
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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/2023/067371A1 |
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/2023/067406A1 |
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/2023/067544A1 |
A high hardness low alloyed hot rolled steel having improved abrasion resistance, impact toughness, hardness, and weldability is provided. The high hardness low alloyed hot rolled steel comprises the following composition expressed in we...
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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/2023/061185A1 |
The present invention relates to spheroidizing-annealed steel for a low-temperature-resistant high-strength ball screw. In percentage by mass, the chemical components of the steel comprises: C: 0.40-0.70%; Si: 1.20-1.80%; Mn: 1.00-1.60%;...
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WO/2023/062643A1 |
The present invention relates to a method for increase or decrease the tensile strength of a work-piece during casting or welding when the material is in liquid/molten state, wherein said method comprising the following steps: making an ...
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WO/2023/061960A1 |
Method to remove an oxide scale from a steel product by treating the surface of the steel with a pulsed laser wherein a laser beam interacts with the surface of the steel product in a focal spot.
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WO/2023/062210A1 |
This invention relates to a hybrid high strength low alloy cold-rolled and annealed steel strip and a method for producing said steel strip.
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WO/2023/057062A1 |
A vanadium alloyed steel comprising carbon and vanadium is provided, wherein the steel microstructure comprises coherent interphase precipitates comprising vanadium. Further, a method for producing such a vanadium alloyed steel is provid...
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WO/2023/058518A1 |
A rolling component (10) has surfaces (10a, 10b, 10c, 10d) and is made of steel. The rolling component includes a surface layer section (50), which is a region extending from the surface down to a depth of 20 μm. The steel contains 0.70...
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WO/2023/057430A1 |
The present invention refers to a method for manufacturing a track link for a running gear of a tracked vehicle, comprising the following method steps: P1) providing a forging blank of steel, P2) hot forging the forging blank to produce ...
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WO/2023/052325A1 |
The invention relates to a device for receiving and driving at least one substantially annular workpiece (4) in a processing system, said workpiece (4) at least partly undergoing a thermal expansion and/or contraction in the processing s...
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WO/2023/049722A1 |
Methods and metal products are described for simultaneously performing a solution heat treatment operation or continuous annealing operation and surface treatment operation using super-heated steam to produce a processed metal product. A...
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WO/2023/048169A1 |
This mechanical component (10) is made of steel and has surfaces (10a, 10b, 10c, 10d). The steel is quenched and tempered. The mechanical component comprises: a nitrided layer (11) on a surface; and a core section (12) which is at a fart...
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WO/2023/047991A1 |
The purpose of the present invention is to make it possible to attain a hot-pressed member which has a tensile strength TS of 1,760MPa or higher, and exhibits excellent low-temperature toughness and delayed fracture resistance, and to pr...
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WO/2023/042545A1 |
The objective of the present invention is to provide manufacturing equipment and a manufacturing method with which a film boiling state can be maintained at as low a temperature as possible without increasing ancillary equipment and with...
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WO/2023/042794A1 |
The purpose of the present invention is to provide a quenching device, continuous annealing equipment, a quenching method, a method for manufacturing a steel sheet, and a method for manufacturing a plated steel sheet with which it is pos...
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WO/2023/040034A1 |
A micro-molybdenum-type weather-resistant bridge steel plate, which is made by smelting the following components according to weight ratio: 0.05 to 0.08% C, 0.30 to 0.50% Si, 1.25 to 1.35% Mn, 0.010 to 0.014% P, S≤0.003%, 0.020 to 0.03...
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WO/2023/041953A1 |
The invention deals with a press hardened steel part having a composition comprising, by weight percent: C 0.2 - 0.34 %, Mn 0.50 – 1.24 %, Si 0.5 – 2 %, P ≤ 0.020 %, S ≤ 0.010 %, N ≤ 0.010 %, and comprising optionally one or mo...
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WO/2023/042031A1 |
The present invention relates to a high strength, high slenderness structural part having excellent energy absorption properties in the case of an impact. In particular, the present invention relates to a structural part for use in an au...
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WO/2023/041954A1 |
The present invention relates to a high strength, high slenderness structural part having excellent energy absorption properties in the case of an impact. In particular, the present invention relates to a structural part for use in an au...
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WO/2023/042018A1 |
The invention deals with a press hardened steel part having a composition comprising, by weight percent: C 0.2 - 0.34 %, Mn 0.50 – 1.24 %, Si 0.5 – 2 %, P ≤ 0.020 %, S ≤ 0.010 %, N ≤ 0.010 %, and comprising optionally one or mo...
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WO/2023/042795A1 |
The present invention addresses the problem of providing: a quenching apparatus which makes it possible to prevent the warpage of a metal sheet after quenching even when the metal sheet is warped already before the quenching; a continuou...
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WO/2023/035444A1 |
The present application provides a stainless steel wire and a preparation method therefor, and a stainless steel spring. The chemical components of the stainless steel wire comprise, in percentages by mass: 0.03-0.08% of C, 6.50-7.50% of...
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WO/2023/037975A1 |
This production method comprises: a first step in which an aluminum alloy sheet that has been subjected to a precipitation hardening treatment in advance is heated to a temperature at which press molding is possible, in a state in which ...
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WO/2023/036882A1 |
The invention relates to a method for producing a hardened steel component, wherein steel sheet blanks are cut from a coil made of steel alloy or steel strip that can be hardened, and the steel sheet blanks are then shaped into a steel s...
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WO/2023/036251A1 |
Disclosed are a temperature-variable vacuum carburizing method for obtaining dispersedly distributed fine carbides, comprising a heating and insulating stage, a pulse carburizing stage, a temperature-variable stage and a quenching stage....
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WO/2023/031645A1 |
A hot rolled steel sheet having a composition comprising of elements, 0.02%≤Carbon≤0.2%, 3%≤Manganese≤9%, 0.2%≤Silicon≤1.2%, 0.9%≤Aluminum≤2.5%, 0%≤Phosphorus≤0.03%, 0%≤Sulfur≤0.03%, 0%≤Nitrogen≤0.025%, 0%≤M...
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WO/2023/029630A1 |
Disclosed in the present invention are a steel rail in which abrasion and rolling contact fatigue are well coupled and a production method therefor. The chemical components of the steel rail comprise, in percentages by weight: 0.75-0.88%...
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WO/2023/031647A1 |
A hot rolled steel sheet having a composition comprising of the elements, 0.02%≤Carbon≤0.2%, 3%≤Manganese≤9%, 0.2%≤Silicon≤1.2%, 0.9%≤Aluminum≤2.5%, 0%≤Phosphorus≤0.03%, 0%≤Sulfur≤ 0.03%, 0%≤Nitrogen≤0.025%, 0...
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WO/2023/025635A1 |
The invention relates to a cold-rolled flat steel product having a tensile strength Rm of at least 780 MPa, a yield point RP0.2 of at least 440 MPa and not more than 600 MPa and an elongation at break A80 of at least 18%, and to a method...
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WO/2023/026903A1 |
A rack portion (21) comprises a hardened layer (26) provided over the entire circumference in a radially outer portion including rack teeth (20). A depth (tb) of a portion of the hardened layer (26) located on the opposite side of the ra...
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WO/2023/026621A1 |
To provide a roller bearing capable of suppressing the occurrence of white etching area flaking. A roller bearing comprising a structure in which the dissolved carbon content in the martensite structure after heat treatment is 0.35-0.65 ...
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WO/2023/023843A1 |
A process for manufacturing a vehicle part from steel material, such as Mn22B5 steel material, using a single transfer press is provided. The process includes stamping, trimming, and piercing the steel material in the transfer press at r...
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WO/2023/026774A1 |
The present invention addresses the problem of suppressing unevenness in the shape of a metal sheet, generated when performing quench hardening thereof. A metal-sheet quench-hardening apparatus (1) cools a metal sheet (S) while conveyi...
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WO/2023/026773A1 |
The present invention suppresses shape variation of a metal sheet which occurs at the time of quenching. This metal sheet quenching device (1) is for cooling a metal sheet while conveying the metal sheet and comprises a cooling device ...
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WO/2023/022044A1 |
This gearbox shaft (1) is used for a gearbox and has a raceway surface on which needle rollers (2) roll. The gearbox shaft (1) comprises a base material (11) and a ferrosoferric oxide coating (12). The base material (11): is formed from ...
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WO/2023/020931A1 |
The invention relates to a flat steel product for hot working, a worked steel sheet part, a process for manufacturing the flat steel product and a process for manufacturing the worked steel sheet product, the flat steel product and the s...
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WO/2023/022222A1 |
Provided is a steel material that exhibits an excellent hydrogen embrittlement resistance after the execution of a pickling treatment and that exhibits an excellent lubricant adhesiveness. The steel material according to the present embo...
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WO/2023/022134A1 |
The present disclosure provides a configuration by which a motor core can be degreased prior to stress-relief annealing without the provision of a heating device or a vacuum device dedicated for degreasing. A heat treatment furnace accor...
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