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WO/2023/126074A1 |
The present invention relates to a method for manufacturing lamellas (20) from sheet metal (30) for a stack of such lamellas (20), i.e. a lamination, such as the core of a transformer or of a rotor or a stator of an electric machine. Acc...
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WO/2023/037846A9 |
This machine component is composed of steel subjected to quenching and tempering. The machine component has a surface, and the residual austenite quantity A (unit: %) in the surface and the average grain diameter B (unit: µm) of prior a...
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WO/2023/127198A1 |
Provided is a soft magnetic alloy which contains at least Fe and Co. The soft magnetic alloy comprises a rich section and a poor section. The rich section has Fe and Co content ratios which are equal to or greater than those of the soft ...
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WO/2023/126506A1 |
The invention relates to a heavy plate and a thermomechanical handling method for a starting material, in particular a slab, for the production of the heavy plate consisting of a steel alloy. According to the invention, in order to be ab...
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WO/2023/126031A2 |
Disclosed is a method for preparing steel sheet strips via electro-hydrogen cooperation under microwave radiation, belonging to the technical field of ferrous metallurgy. The method, which has near-zero carbon emissions, comprises: prepa...
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WO/2023/121266A1 |
A double oriented electrical steel sheet according to an embodiment of the present invention contains, in wt%, at least 2.0% of Si, more than 0% and 0.02% or less of Al, 0.02-0.50% of Mn, more than 0% and 0.004% or less of C, and 0.0005-...
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WO/2023/121032A1 |
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 impact toughness after deformation, and a method f...
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WO/2023/121267A1 |
A non-directional electrical steel sheet according to an embodiment of the present invention comprises: by weight%, 2.5 to 4.5% of Si; 0.04 to 1.4% of Mn; 0.2 to 1.1% of Al; 0.0005 to 0.003% of Bi: 0.0005 to 0.003% of Zr; 0.0005 to 0.004...
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WO/2023/121200A1 |
A method for manufacturing a non-oriented electrical steel sheet according to one embodiment of the present invention comprises: a step of manufacturing a slab in a steelmaking process by inputting, in weight %, In: 0.0005-0.015%, Sn: 0....
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WO/2023/121179A1 |
Provided is an ultrathick steel material for a flange having excellent strength and low-temperature impact toughness, and a manufacturing method therefor. The steel material of the present invention comprises, in weight%, C: 0.05-0.2%, S...
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WO/2023/121293A1 |
A non-oriented electrical steel sheet according to one embodiment of the present invention comprises, in wt%, 2.0 to 6.5% of Si, 0.1 to 1.3% of Al, 0.3 to 2.0% of Mn, and the remainder in Fe and unavoidable impurities, and the area fract...
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WO/2023/121220A1 |
A non-oriented electrical steel sheet according to one embodiment of the present invention comprises, in weight %, 0.005% or less (excluding 0%) of C, 1.5-3.0% of Si, 0.4-1.5% of Mn, 0.005% or less (excluding 0%) of S, 0.0001-0.7% of Al,...
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WO/2023/116214A1 |
A maraging steel powder and the use thereof in additive manufacturing. The maraging steel powder comprises a maraging steel pre-alloyed powder and a metal powder. The maraging steel powder comprises the following components in percentage...
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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/2023/120475A1 |
The present invention addresses the problem of providing a compression coil spring in which an appropriate amount of residual austenite is made present near the surface thereof by optimizing tempering conditions, and cracking is suppress...
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WO/2023/121274A1 |
A grain oriented electrical steel sheet according to an embodiment of the present invention comprises: a grain oriented electrical steel sheet substrate; and a metal oxide layer disposed on both sides of the grain oriented electrical ste...
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WO/2023/121133A1 |
The present specification discloses: a steel plate for an exhaust system steel pipe, wherein the steel plate is economical and improved in terms of corrosion resistance and formability by controlling the alloy components and production m...
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WO/2023/121308A1 |
A non-oriented electrical steel sheet according to one embodiment of the present invention comprises: a steel sheet base material comprising, by wt%, 1.0-6.5% of Si, 0.1-1.3% of Al, 0.3-2.0% of Mn and the balance of Fe and inevitable imp...
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WO/2023/117163A1 |
The present application is concerned with a powder mixture for additive manufacturing processes, wherein the powder mixture comprises a duplex steel powder component and an austenitic steel powder component, wherein the powder mixture co...
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WO/2023/121040A1 |
A method for manufacturing a grain-oriented electrical steel sheet, according to one embodiment of the present invention, comprises the steps of: hot rolling a slab so as to manufacture a hot rolled sheet, the slab comprising, by wt%, 2....
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WO/2023/121194A1 |
A cold-rolled steel sheet having improved strength and elongation, according to one embodiment of the present invention, comprises, in weight%: 0.04-0.08% of C; 0.05% or less (excluding 0%) of Si; 0.1-0.6% of Mn; 0.02-0.06% of Al; 0.015%...
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WO/2023/121181A1 |
An aspect of the present invention may provide: a hot-rolled steel sheet that is excellent in terms of yield strength, vibration damping ratio, weldability, and weld site-low temperature toughness and thus has physical properties suitabl...
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WO/2023/121186A1 |
Provided are an ultra-thick steel material having excellent strength and low-temperature impact toughness for flanges and a method for manufacturing same. The steel material of the present invention comprises, by wt%, C: 0.05-0.2%, Si: 0...
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WO/2023/121253A1 |
A grain-oriented electrical steel sheet according to one embodiment of the present invention comprises a plurality of line-shaped deformation parts formed in the rolling direction, and at least two regions, in which intervals between the...
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WO/2023/120985A1 |
The present invention relates to: a steel material for hot forming, used for a vehicle, etc.; a hot formed part; and a method for manufacturing thereof.
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WO/2023/121256A1 |
A non-oriented electrical steel sheet according to an embodiment of the present invention contains, in wt%, 2.5-4.0% of Si, 0.1-1.5% of Al, and 0.1-1.5% of Mn, with the remainder comprising Fe and inevitable impurities. The non-oriented ...
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WO/2023/121295A1 |
A non-oriented electrical steel sheet according to an embodiment of the present invention comprises: a steel sheet base material containing, in wt%, 2.0-6.5% of Si, 0.1-1.3% of Al, 0.3-2.0% of Mn, and 0.005-0.06% of Cr, with the remainde...
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WO/2023/120655A1 |
The present invention provides: a unit having an alloy the Curie temperature of which is adjusted, while suppressing a decrease in the amount of change in entropy; a temperature adjustment module; and a temperature adjustment device. Pro...
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WO/2023/121191A1 |
This non-oriented electrical steel sheet comprises: 3.0-4.0 weight% of Si; 0.1-1.5 weight% of Al; 0.1-0.5 weight% of Mn; 2-20 weight% of Cr with respect to the content of Mn; 0.006-0.1 weight% of a sum of Sn and Sb; 0.0010-0.0050 weight%...
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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/2023/121294A1 |
A non-oriented electrical steel sheet according to one embodiment of the present invention comprises a steel sheet base material and an insulation film positioned on the steel sheet base material, satisfies the following formula 2 before...
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WO/2023/121201A1 |
The present invention relates to a grain-oriented electrical steel sheet and a manufacturing method therefor. The grain-oriented electrical steel sheet according to one embodiment of the present invention may comprise, in wt%, 2.0 to 6.0...
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WO/2023/121273A1 |
A manufacturing method of a grain oriented electrical steel sheet according to one embodiment of the present invention comprises: a step of manufacturing a hot-rolled steel sheet by hot-rolling a slab; a step of hot-rolled sheet annealin...
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WO/2023/121039A1 |
A steel sheet for enamel according to an embodiment of the present invention comprises, in wt%, C: 0.001 to 0.08%, Mn: 0.05 to 0.40%, Si: 0.001 to 0.03%, Al: 0.005 to 0.020%, P: 0.001 to 0.020%, S: 0.001 to 0.020%, Cu: 0.03 to 0.08%, N: ...
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WO/2023/121223A1 |
According to one aspect of the present invention, an austenitic high-manganese steel having excellent ultra-low temperature toughness in a weld heat-affected zone, and a manufacturing method therefor can be provided.
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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/2023/121063A1 |
Disclosed in the present specification are a martensitic stainless steel and manufacturing method therefor, wherein the martensitic stainless steel is induced, through control over the alloy composition in terms of Cu, Nb, etc. and manuf...
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WO/2023/120491A1 |
The problem addressed by the present invention is to provide a compression coil spring the fatigue resistance of which is improved by decreasing the quantity of coarsened pro-eutectoid ferrite grains that can become fracture origins. T...
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WO/2023/116217A1 |
Disclosed are iron-based alloy powder for plasma cladding, a preparation method and a plasma cladding method. The components of iron-based alloy powder comprise: less than or equal to 0.03% of C, less than or equal to 0.05% of Si, less t...
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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/2023/121268A1 |
A non-oriented electrical steel sheet according to one embodiment of the present invention comprises, by wt%: 1.4-3.0 % of Si; 0.001-1.5 % of Mn; and 0.001-0.2 % of Al, with the remainder of Fe and inevitable impurities, wherein a thickn...
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WO/2023/121270A1 |
A non-oriented electrical steel sheet according to an embodiment of the present invention comprises, by wt%, 3.1-3.8% of Si, 0.5-1.5% of Al, 0.3-1.5% of Mn, 0.01-0.15% of Cr, 0.02-0.08% of Sn, 0.03-0.06% of Sb, and the remainder of Fe an...
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WO/2023/119902A1 |
A welded structure (19) includes a first member (11) made of a steel plate or cast steel, a second member (12) made of a steel plate or cast steel and disposed adjacent to the first member (11) with a space (S) interposed therebetween, a...
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WO/2023/121222A1 |
An aspect of the present invention provides: an austenitic high-manganese steel having excellent extreme low temperature toughness in a heat-affected zone; and a method for manufacturing same.
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WO/2023/121182A1 |
According to an aspect of the present invention, provided are a high-carbon steel sheet with excellent durability, and industrial or automotive parts manufactured using same.
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WO/2023/118516A1 |
A low carbon steel welded tube for low internal pressure applications, wherein the pressure in the tube is, in use, less than 10 kPa, wherein the low carbon steel constituting the welded tube is a hot-rolled steel strip having a thicknes...
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WO/2023/115785A1 |
The present invention provides an iron-based amorphous/nanocrystalline alloy as shown in formula Fe(100-a-b-c-d-e)BaSibPcCdCue, wherein d+(b/c)=0.85-1.3, and a viscosity coefficient η is (3.0-8.0)*10-3 Pa/s. The present application furt...
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WO/2023/113527A1 |
The present invention pertains to a grain-oriented electrical steel sheet and a method for manufacturing same. The grain-oriented electrical steel sheet according to an embodiment of the present invention comprises: a base material conta...
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WO/2023/111403A1 |
The invention relates to a grade of ductile iron having a tensile strength (Rm) equal to or greater than 700 MPa, an elongation of 8%, a yield strength (Rp 0.2) equal to or greater than 532 MPa, and a minimum ratio of yield strength (Rp ...
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