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WO/2023/246082A1 |
The present invention relates to hot work die steel and a heat treatment method therefor, and a hot work die. The hot work die steel comprises the following chemical components in percentages by weight: 4.5-12% of Ni, 0.8-2.1% of Al, 0.4...
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WO/2023/246465A1 |
Disclosed in the present invention are a martensitic heat-resistant steel for use at 630ºC or more and a preparation method therefor, which belong to the technical field of metal materials. The heat-resistant steel comprises, in percent...
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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/2023/245886A1 |
The present invention relates to a normalizing heat treatment production process, comprising the steps of: feeding a slab of a steel plate into a heating furnace for heating, wherein the final temperature before the slab is discharged ou...
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WO/2023/247214A1 |
The invention relates to a boron-alloyed steel, in particular heat-treated steel, which has the following composition: 0.1-0.6 wt.% carbon; 0.05-1.5 wt.% silicon; 0.3-1.8 wt.% manganese; 0.001-0.005 wt.% boron; 0.01-0.06 wt.% titanium; o...
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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/2023/240850A1 |
The present invention relates to a 960 MPa grade ultrahigh-strength steel plate with marine fouling resistance, which steel plate is characterized by comprising the following chemical components in percentages by weight: 0.03-0.12% of C,...
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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/2023/243710A1 |
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/2023/241677A1 |
A hydrogen induced cracking-resistant cold-rolled hot-dip galvanized ultra-high-strength dual-phase steel, comprising a substrate and a galvanized layer plated on the substrate, wherein the substrate contains Fe and inevitable impurity e...
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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/2023/236606A1 |
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/2023/232159A1 |
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/2023/235668A1 |
Disclosed herein is a method for treating an article made of self-passivating metal including applying reagent to a surface portion of the article and applying laser light to the surface portion of the article to chemically activate the ...
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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/2023/235169A1 |
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/2023/227454A1 |
The invention relates to a method for producing a shaped sheet metal part comprising one first and one second zone having different material properties, such as a shaped sheet metal part.
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WO/2023/228139A1 |
An annealing apparatus for a metal strip (9) advancing along a longitudinal direction into a coating system for coating said metal strip with a layer of molten metal, said apparatus comprising, in sequence: - at least one longitudinal-fl...
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WO/2023/224122A1 |
[Problem] The present invention addresses the problem of ameliorating both low heating rate of a layered part and heating rate difference between the layered part and a single sheet part in cases where an Al plated steel sheet is used as...
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WO/2023/223078A1 |
A martensitic steel sheet comprising of the following elements 0.08 % ≦ C ≦ 0.14 %; 1.95 % ≦ Mn ≦ 2.6 %; 0.1% ≦ Si ≦ 0.8 %;.01% ≦ Al ≦ 0.1 %; 0.001% ≦ Ti ≦ 0.1%; 0.0001% ≦ B ≦ 0.05%; 0% ≦ S ≦ 0.09%; 0% ≦ P â...
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WO/2023/223598A1 |
A temperature measurement method according to the present invention includes: a spectral measurement step in which the spectral emission spectrum from a slab is measured, said spectral emission spectrum including three or more wavelength...
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WO/2023/218784A1 |
Provided is a continuous cast slab that, even if the slab is highly alloyed and has low ductility, is configured not to cause slab fracture during cooling of the slab. The continuous cast slab for high-strength steel that, at a 10 mm pos...
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WO/2023/218785A1 |
Provided are a slab for a high-strength steel sheet and a cooling method thereof, wherein slab cracking is prevented during slab cooling. Also provided are methods for producing a high-strength hot-rolled steel sheet, a high-strength col...
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WO/2023/218975A1 |
Provided is a high-precision mechanical structural member that has excellent quality and resists deformation. A mechanical structural member according to the present invention has grooves (32) and teeth (33) that have been formed by plas...
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WO/2023/218787A1 |
The present invention provides: a continuous casting slab in which season cracking does not occur while cooling, even when the continuous casting slab has a low toughness; and a method for manufacturing the same. A continuous casting sla...
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WO/2023/218786A1 |
The present invention provides: a continuous casting slab in which season cracking does not occur while being cooled, even when the continuous casting slab has a low toughness; and a method for manufacturing the same. This continuous cas...
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WO/2023/218229A1 |
A hot rolled steel sheet having a composition comprising of the following elements 0.060%≤Carbon≤0.1%, 1.4%≤Manganese≤1.8%, 0.3%≤Silicon≤0.8%, 0.01%≤ Aluminum≤0.1%, 0.01%≤Niobium≤0.09%, 0.01%≤Titanium≤0.09%, 0.002...
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WO/2023/213109A1 |
The present invention relates to the technical field of material processing, and provides an accurate heat treatment method for a low-carbon low-alloy high-strength thin steel plate. According to the accurate heat treatment method, the s...
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WO/2023/209480A1 |
The invention relates to a method for heating at least one semi-finished metal products to be further laminated, by means of a heat exchanging device comprising a chamber containing solid particles, supporting means able to support semi-...
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WO/2023/211718A1 |
Induction heating systems and methods, in which a DC magnetic field is applied to a magnetic workpiece while one or more induction heating coils are energized with AC current for an induction heating process. The heat treatment of the wo...
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WO/2023/206715A1 |
A pulse current-assisted aluminum alloy laser peening forming and hydrophobic surface preparation method. The preparation method comprises the following steps: a pretreated aluminum alloy is placed on an impact platform (1), and electrod...
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WO/2023/209415A1 |
The invention relates to a method for heating at least one semi-finished metal products to be further laminated, by means of a heat exchanging device comprising a chamber containing solid particles, supporting means able to support semi-...
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WO/2023/203838A1 |
In the present invention, a gear is made of steel having a composition containing, by mass, 0.31-0.35% of C, 0.30% or less of Si, 0.20-0.80% of Mn, 0.030% or less of P, 0.030% or less of S, 0.35% or less of Cu, 0.25% or less of Ni, 1.00-...
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WO/2023/203810A1 |
The metal wire heating apparatus according to one embodiment of the present disclosure is provided with a casing which forms a heating chamber for heating a metal wire to be heated, a transfer mechanism which transfers the metal wire to ...
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WO/2023/198522A1 |
The invention relates to an assembly (16) comprising: - a workpiece (5); a liquid film (3) made of a liquid (2) on a surface (4) of the workpiece (5); a laser (6) for generating a pulsed laser beam (7) for laser-shock hardening of the wo...
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WO/2023/199635A1 |
This hot-stamp-formed article has a specified chemical composition, in which the area ratio of bainite in a surface layer region is more than 10%, the maximum value of a pole density in a texture is 4.0 or less, and the de-B index is 0.0...
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WO/2023/197571A1 |
Disclosed in the present invention is a 360HB-450HB grade abrasion resistant steel, comprising the following chemical components in percentage by mass: C: 0.10%-0.30%, Si: 0.20%-0.50%, Mn: 0.80%-1.60%, P≤0.020%, S≤0.005%, Ti: 0.008%-...
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WO/2023/197572A1 |
Disclosed in the present invention is 500 HB grade or above abrasion-resistant steel, the chemical components and the mass percentages thereof are as follows: 0.15%-0.45% of C, 0.15%-0.50% of Si, 0.50%-1.80% of Mn, P ≤ 0.015%, S ≤ 0....
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WO/2023/198468A1 |
The invention relates to a method for welding a component made of steel, in which a built-up welding takes place, wherein the weld site is then allowed to cool and maintained at a holding temperature above a martensite-forming temperatur...
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WO/2023/200347A1 |
The subject matter of the invention is a method of heat treatment of medium- and high-carbon alloy steels, the AIM of which is to produce a fragmented, multiphase microstructure consisting of tempered bainitic ferrite and martensite, sep...
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WO/2023/198721A1 |
The present disclosure relates to a welding duplex stainless steel material comprising the following alloying elements in wt% C max 0.030 Si max 0.50 Mn 0.50 to 2.50 P max 0.030 S max 0.030 Cr 29.0 to 32.0 Ni 7.0 to 11.0 Mo 0.50 to 1.50 ...
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WO/2023/197826A1 |
The present application provides a medium-carbon low-alloy steel material, a conveying pipe, a preparation method for the medium-carbon low-alloy steel material, and a concrete pump truck. The medium-carbon low-alloy steel material is ma...
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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/2023/199777A1 |
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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