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WO/2023/121187A1 |
The present invention relates to a steel sheet for use in automobiles, etc., and to a steel sheet that has high strength and high formability and is superb in terms of spot weldability, and a manufacturing method therefor.
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WO/2023/117135A1 |
The present invention relates to a method for manufacturing a die (20; 21) for press forming plate material (10) between an upper die (20) and a lower die (21) of a pressforming die pair (20, 21). The die (20; 21) is provided with a work...
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WO/2023/118350A1 |
The invention relates to a high strength steel strip or sheet excellent in ductility and bendability. The invention also relates to a method for producing such steel strip or sheet.
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WO/2023/120348A1 |
According to the present invention, a steel stock material having a specific chemical component composition is heated to a rolling temperature of 1150°C to 1350°C and is subsequently rolled, thereby producing a rolled material; and aft...
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WO/2023/121183A1 |
A hot rolled steel sheet having excellent cold bendability after heating and quenching-tempering heat treatment, a steel pipe, a member and manufacturing methods therefor are provided. The present invention relates to: a hot rolled steel...
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WO/2023/118298A1 |
The invention relates to a method for heating a vehicle wheel (2), in particular as a preparation for a subsequent shaping method, in which at least a part of the vehicle wheel (2) is heated by means of inductive heating using an inducto...
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WO/2023/121027A1 |
The present invention pertains to a steel plate and a method for manufacturing same. More specifically, the present invention pertains to a steel plate having high strength and excellent low-temperature impact toughness, and a method for...
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WO/2023/111632A1 |
The invention relates to a method for regulating an atmosphere A inside a furnace, wherein a steel strip having a composition and an exposed surface area A1 is heat treated from a time T0 to a time TS1END and a steel strip, having a comp...
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WO/2023/111771A1 |
The present invention relates to a method for evaluating the hydrogen content in a steel sheet while being submitted to an annealing process, comprising the following steps: estimating the microstructure of the steel sheet according to t...
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WO/2023/114498A1 |
A method for fabricating an article includes forming a billet consisting essentially of a stainless steel composition of manganese 2.00 wt.% – 24.00 wt.% chromium 19.00 wt.% – 30 wt.% molybdenum 0.50 wt.% – 4.0 wt.% nitrogen 0.25 w...
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WO/2023/111633A1 |
The invention relates to a method for heating a semi-finished steel product, comprising : a pre-heating step, performed in a pre-heating device comprising a chamber containing solid particles, a heat exchanger, a support able to support ...
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WO/2023/109005A1 |
The present invention belongs to the field of steel material preparation, and relates to a 56 kg-grade low-yield-ratio ultrahigh-strength maritime work steel plate and a preparation method therefor. The composition design of the present ...
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WO/2023/111770A1 |
The present invention relates to a method for manufacturing a heat-treated steel sheet, submitted to an annealing process following a temperature curve T as a function of time t in a furnace having atmosphere comprising hydrogen, in whic...
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WO/2023/111655A1 |
Method for evaluating the hydrogen content in a steel sheet The present invention relates to a method for evaluating the hydrogen content in a steel sheet while being submitted to an annealing process, comprising the following steps: est...
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WO/2023/111656A1 |
The present invention relates to a method for manufacturing a heat treated steel sheet, submitted to an annealing process following a temperature curve T as a function of time t in a furnace having atmosphere comprising hydrogen, in whic...
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WO/2023/111837A1 |
The invention relates to a method for regulating an atmosphere A inside a furnace, wherein a steel strip having a composition and an exposed surface area A1 is heat treated from a time T0 to a time TS1END and a steel strip, having a comp...
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WO/2023/111760A1 |
The invention relates to a method for heating a semi-finished steel product, comprising : a pre-heating step, performed in a pre-heating device comprising a chamber containing solid particles, a heat exchanger, a support able to support ...
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WO/2023/105846A1 |
A device for producing a steel strip according to the present invention comprises: a first water tank part that retains cooling water in which a steel strip is to be immersed and cooled; a water cooling nozzle unit that is provided at th...
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WO/2023/104344A1 |
The present invention relates to a method of controlling carbon potential of an atmosphere in a heating chamber used for a heat treatment of metals or metal alloys. Said method comprises the steps of: providing a flow of an inert gas - h...
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WO/2023/103758A1 |
A micro-alloyed carbon steel original austenite grain boundary etching method, comprising: using heat treatment of higher than an austenitizing temperature - ice water quenching - tempering - normal temperature quenching - sample prepara...
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WO/2023/106047A1 |
A steel plate manufacturing method according to the present invention includes: a temperature measurement step in which the surface temperature of a steel plate is measured over the entire width and the entire length of at least one of a...
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WO/2023/098125A1 |
The present invention relates to the technical field of ferrous metallurgy production, and to a zinc-aluminum-magnesium alloy coated steel containing V and B and a preparation method therefor. The present invention provides the zinc-alum...
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WO/2023/100196A1 |
The present invention discloses a descaling and antifouling formulation including an ammonium oxalate, a nitrate salt, and a nitrogen compound selected from ethylenediaminetetraacetic acid (EDTA), or urea. The said formulation is soluble...
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WO/2023/101487A1 |
Disclosed are: a cold forging wire rod and a steel part in which the microstructure is controlled through the alloy composition and manufacturing method, thus enabling cost reduction and enhancing delayed fracture resistance; and a metho...
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WO/2023/098421A1 |
A process pipeline system, comprising a vacuum release loop, a nitrogen injection loop and a process gas injection loop, wherein the vacuum release loop, the nitrogen injection loop and the process gas injection loop are respectively con...
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WO/2023/098126A1 |
The present invention relates to a zinc-aluminum-magnesium alloy coating steel containing V, Ce, La and Mn, and a preparation method therefor, and belongs to the technical field of ferrous metallurgy production. The present invention pro...
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WO/2023/098919A1 |
Disclosed in the present invention is a manufacturing method for a low-carbon nitrogen-containing austenitic stainless steel bar, sequentially comprising the following steps: smelting, electroslag remelting, and forging. In the electrosl...
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WO/2023/093798A1 |
Disclosed in the present invention is a high-strength cold-rolled steel plate for a double-sided enamel liner, the high-strength cold-rolled steel plate comprising Fe and inevitable impurities, and also comprising the following chemical ...
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WO/2023/094557A1 |
In a process and an apparatus for austempering, metal workpieces and optional tempering bodies are quenched in a quenching volume V of a quenching apparatus, wherein the quenching volume V is flowed through by a cooling fluid, and the wo...
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WO/2023/093923A1 |
The high-chrome steel resistant to creep at temperatures up to 650 °C contains W in the range of more than 2 up to 4% wt., Si in the range of more than 0.1 up to 1% wt., Mn in the range of more than 0.1 up to 1% wt., Nb in the range of ...
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WO/2023/093119A1 |
The present application relates to the technical field of metal materials, and discloses a high-toughness ultrahigh-strength steel and a manufacturing method therefor, used for solving the problems that existing low-alloy ultrahigh-stren...
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WO/2023/093111A1 |
The present invention relates to the technical field of metal processing, and in particular to high Cr-Si alloyed coating-free hot forming steel and a hot rolling preparation method therefor. For the problems existing in the prior art th...
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WO/2023/094856A1 |
The present invention relates to a steel sheet containing manganese from 3.0 to 6.0 % in weight which has both a good coatability by liquid zinc and a good LME resistance. The present invention also aims to make available an easy to impl...
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WO/2023/094909A1 |
The present invention relates to a steel sheet containing manganese from 3.0 to 6.0 % in weight which has both a good coatability by liquid zinc and a good LME resistance. The present invention also aims to make available an easy to impl...
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WO/2023/095920A1 |
A steel member according to the present invention has a specific chemical composition, and if a position corresponding to 1/4 the thickness from the surface in the thickness direction is taken as the 1/4 depth position, the metal structu...
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WO/2023/092565A1 |
Disclosed are a 35WD1600 electrical steel for a new energy vehicle drive motor and a production method therefor. The present invention relates to the technical field of production of electrical steels for new energy vehicle drive motors,...
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WO/2023/097287A2 |
A method of making high strength steel sheet with a tensile strength of 800 to 1000 MPa and a hole expansion ratio of at least 50%, comprising the steps of reheating a previously cast slab, or retaining the heat from a directly cast slab...
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WO/2023/087957A1 |
The present invention relates to an aluminum pipe having an internal thread. The aluminum pipe is made of a multi-layer composite material; the multi-layer composite material comprises a core material and a composite layer; the alloy of ...
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WO/2023/085532A1 |
An Fe-Cu alloy having a mesh structure and a method for manufacturing same are disclosed. The disclosed Fe-Cu alloy having a mesh structure comprises 65-85 atomic% of iron (Fe); and 15-35 atomic% of copper (Cu). In addition, the method f...
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WO/2023/083898A1 |
A hot-rolled steel strip product having a tensile strength (Rm) above 1400 MPa and a microstructure comprising at least 90 % by volume of martensite. The steel has a composition comprising, in percent by weight (wt.-%): C 0.20 – 0.26, ...
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WO/2023/085660A1 |
The present invention relates to an ultrahigh-strength steel sheet with excellent bendability and stretch flangeability, and a manufacturing method therefor and, more specifically, to: a steel sheet having excellent bendability and stret...
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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/2023/079454A1 |
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/2023/074660A1 |
The present disclosure is aimed at providing a heat treatment furnace and a heat treatment method that have sufficient performance in terms of the atmosphere gas in the heat treatment furnace and that can reduce the amount of carbon-base...
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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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