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WO/2019/244504A1 |
A method for producing a machine component 1 with excellent pitting resistance characteristics and toughness comprises: a carburization step for heating, to a heating temperature of 850°C -1030°C, a steel material containing, in mass%,...
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WO/2019/243423A1 |
The invention relates to an apparatus (1) for cooling an automobile component (20) by means of a gas, the apparatus comprising a cooling box (11) with a re-closeable opening (12) for receiving an automobile component (20) to be cooled, w...
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WO/2019/243146A1 |
The present invention relates to a flat steel product, which is suitable for being formed into a component by hot press forming and which has a steel substrate, wherein: - an anti-corrosion coating based on aluminum and/or zinc is applie...
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WO/2019/244503A1 |
A mechanical component is provided with a core part which is composed of a steel for mechanical structures, a moderately carbon-containing layer which is formed from the steel for mechanical structures and covers the core part, and a hig...
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WO/2019/243197A1 |
A method for hardening parts made from nitridable steel is disclosed, in which a part made from nitridable steel, or a portion thereof, is subjected to initial hardening (I) by austenitisation and quenching; next, to low-temperature inte...
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WO/2019/241514A1 |
Systems and methods of quenching a metal substrate include cooling a top surface and a bottom surface of the metal substrate until a strip temperature is cooled to an intermediate temperature. Cooling of the top surface of the metal subs...
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WO/2019/235239A1 |
An rack bar includes a shaft member having a plurality of rack teeth arranged side by side in an axial direction of the shaft member. In a preliminary form before quenching, the pitch surface of the plurality of rack teeth is twisted aro...
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WO/2019/228692A1 |
The present invention relates to a device for electromagnetically measuring, in real time, the percentage of austenite contained in a continuously running steel strip during an in-line process for manufacturing or transforming the latter...
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WO/2019/228985A1 |
The invention relates to a method for avoiding strips sticking on flexibly rolled metal strip, wherein after flexible rolling (S10), a metal strip (2) is wound to form a coil (3) and is subject to thermal treatment (S40), wherein before ...
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WO/2019/223078A1 |
The present invention provides a medium-temperature gas nitrocarburizing quenching process, comprising: placing a formed crankshaft in a fluidized bed particle furnace to be heated to 600-800°C, and performing austenitizing; introducing...
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WO/2019/223491A1 |
The present invention provides a method for manufacturing a high-strength crankshaft, the method comprising feeding a molded crankshaft into a fluidized bed particle furnace and raising the temperature to 900ºC for austenitization, wher...
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WO/2019/223854A1 |
The invention relates to a shaped sheet-metal part, which has a tensile strength of Rm > 1000 MPa at a bending angle of > 70° and which is formed from a flat steel product, which consists of (in % by weight): C: 0.10 - 0.30%, Si: 0.5 - ...
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WO/2019/218135A1 |
An ultra high strength steel having a yield strength of 1,000 MPa and a low yield-tensile ratio, and a preparation method thereof. The ultra high strength steel comprises the components in percentage by weight: C: 0.06-0.14%, Mn: 2.5-3.5...
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WO/2019/218522A1 |
A method for inclined laser shock with energy compensation and equal energy density. The method comprises: acquiring a radius of curvature of a peening region of a part to be processed, and determining a range of laser incident angles; d...
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WO/2019/221459A1 |
The present invention relates to a radiant heating device for indirectly heating, in a non-oxidizing atmosphere, a steel sheet that moves within a continuous annealing furnace and a support structure therefor. Particularly, the present i...
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WO/2019/221496A1 |
The present invention relates to an atmospheric gas sealing device for controlling hydrogen concentration of a rapid cooling zone in a continuous-thermal treatment furnace for continuously heat-treating a steel plate, and a pressure cont...
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WO/2019/208556A1 |
A steel member according to one embodiment of the present invention has a specific chemical composition, while having a metal structure that contains, in volume %, 60.0-85.0% of martensite, 10.0-30.0% of bainite and 5.0-15.0% of residual...
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WO/2019/205699A1 |
Steel for hot stamping, a hot stamping process, and a hot stamped component. The steel for hot stamping comprises, in weight percent: C: 0.2-0.4%, Si: 0-0.8%, Al: 0-1.0%, B: 0-0.005%, Mn: 0.5-3.0%, Mo: 0-1%, Cr: 0-2%, Ni: 0-5%, V: 0-0.4%...
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WO/2019/208833A1 |
The invention relates to a steel wire suitable for making a spring or medical wire products which remarkably improve the performance of conventional stainless steel wire. The steel comprises (in wt. %): C: 0.02 to 0.15, Si: 0.1 to 0.9, M...
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WO/2019/208534A1 |
The present invention is a nitrided steel member in which a carbon steel having a carbon content of 0.10% by mass or more or a low alloy steel makes up a parent phase and an iron nitride compound layer is formed on the surface of the par...
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WO/2019/209933A1 |
Disclosed herein are TRIP (transformation induced plasticity) steel alloy thin metal strips or, stated differently, high strength, high ductility steel alloy thin metal strips formed of a composition described herein, being substantially...
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WO/2019/201622A1 |
The invention relates to a temperature-control device for partially cooling a component, wherein the component is blown on with a fluid in the region to be cooled by means of a nozzle. The nozzle comprises a connecting tube which is conn...
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WO/2019/202896A1 |
Provided is an induction hardening device (1) provided with: a coil member (12) which is formed in an annular shape and through which a high-frequency electric current is passed, a shaft body (101) being freely insertable inside the coil...
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WO/2019/202898A1 |
Provided is an induction hardening device (1) provided with: a heating part having a primary coil member (12) comprising a winding (12a), and a hollow cylindrical secondary coil member (13) which is disposed inside the winding (12a) of t...
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WO/2019/198415A1 |
Provided is a steel material for components that are to be carburized, whereby excellent fatigue strength can be obtained even when components are welded prior to carburizing. This steel material: comprises 0.09%–0.16 C, 0.01%–0.50% ...
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WO/2019/199599A1 |
A method of heat-treating an additively-manufactured ferromagnetic component is presented and a related ferromagnetic component (150) is presented. A saturation flux density of a heat-treated ferromagnetic component (150) is greater than...
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WO/2019/198728A1 |
A production method for hot press molded articles, whereby a die mold 11 is used to perform hot press molding on an Al-plated steel plate 10 having a zinc compound layer or a metal zinc layer as the outermost layer upon an Al plating lay...
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WO/2019/198781A1 |
A press molded steel article having a first site and a second site connected to the first site. The metal composition at the first site has a martensite volume fraction of at least 90% and the aspect ratio of the prior γ grain size at t...
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WO/2019/198539A1 |
The present invention provides a machine component which has excellent pitting resistance characteristics and bending fatigue characteristics. A machine component which has a grain boundary oxidation layer of 0.0-2.0 μm, an effective ha...
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WO/2019/193895A1 |
Provided is a conveyance roller for a heating furnace, the roller being resistant to local deformation. A steel sheet is conveyed in a state held entirely by holding projections 70, which are made of a heat-resistant alloy and protrude h...
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WO/2019/192181A1 |
Disclosed is a cold-rolled, high-strength, hot-dip galvanized steel sheet and a production method thereof. A coating layer and a substrate of the steel sheet comprise an alloy layer disposed therebetween. The thickness of the alloy layer...
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WO/2019/192703A1 |
The present invention relates to a method for producing a steel component by hot forming a steel flat coated with an aluminium-based anti-corrosion coating, a steel component produced from a steel flat coated with an aluminium-based anti...
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WO/2019/184552A1 |
The invention belongs to the technical field of composite materials, and particularly discloses a thermal treatment process for a ceramic-reinforced steel-matrix composite material, the thermal treatment process comprising the following ...
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WO/2019/189135A1 |
Provided is a heat-treatment oil composition that makes it possible to achieve both high quenching hardness and reduced quenching distortion. A heat-treatment oil composition that includes a base oil (A) and a vapor film rupturing agent ...
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WO/2019/189087A1 |
This bearing part (10) is made of steel and has a quench-hardened layer (11) on the surface thereof. The quench-hardened layer (11) contains a plurality of martensite grains. The total area percentage of the martensite grains in the quen...
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WO/2019/189136A1 |
Provided is a heat-treatment oil composition that makes it possible to suppress quenching distortion and distortion variation and to achieve improved quenching hardness. A heat-treatment oil composition that includes a base oil (A) and a...
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WO/2019/186927A1 |
This steel sheet for hot stamping, which serves as a raw material for a hot-stamped formed product offering excellent strength or bending deformability, is characterized by having a prescribed component composition and is also characteri...
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WO/2019/186257A1 |
The present disclosure discloses a method for producing high ductile bainitic steel. The process involves soaking steel ingot at first pre-determined temperature for first pre-set period of time. Then, hot working the steel ingot by a fi...
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WO/2019/187765A1 |
This traverse hardening device is a device for carrying out traverse hardening on a shaft-like body which is arranged such that the axis is along the vertical direction and which comprises a main body section and a large-diameter section...
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WO/2019/186930A1 |
This hot-stamped formed product for a high-strength steel sheet having excellent bending deformability is characterized in that: the steel sheet has a prescribed component composition; an area ratio of 90% or more in the microstructure o...
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WO/2019/186928A1 |
This hot-stamped formed product having excellent strength is characterized by having a prescribed component composition, and also characterized in that: the average grain size of prior austenite is 3 μm or less; lower bainite, martensit...
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WO/2019/186931A1 |
This hot-stamped formed product having excellent shock absorption ability is characterized by having a prescribed component composition, and also characterized in that: the microstructure contains prior austenite having an average grain ...
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WO/2019/185272A1 |
The invention relates to a method for welding steel plates consisting of CMnB and CMn steel materials, coated with an aluminum-silicon anti-corrosive layer and temperable in the quench hardening process, wherein a welding filler wire is ...
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WO/2019/188622A1 |
A steel plate for hot stamping according to the present invention contains, in terms of % by mass, 0.25% to 0.4% C, 1.05% to 1.4% Si, 0% to 1.4% Mn, 0.6% to 3.0% Cr, 0% to 0.03% P, 0% to 0.02% S, 0.01% to 1% Al, 0% to 0.01% N, 0.0005% to...
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WO/2019/187027A1 |
A steel sheet comprising, by mass%, C: 0.06% to 0.22%, Si: 0.50% to 2.00%, Mn: 1.50% to 2.80%, Al: 0.02% to 1.00%, P: 0.001% to 0.100%, S: 0.0005% to 0.0100%, N: 0.0005% to 0.0100%, and the balance: Fe and impurities, and having a hot-di...
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WO/2019/187742A1 |
This hot press processing device 1 is provided with: a heating step for heating a workpiece W; a press step for press-forming the workpiece W heated by the heating step; and a cooling step in which a portion of the workpiece W press-form...
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WO/2019/180492A1 |
A steel for forging mechanical parts comprising of the following elements, expressed in percentage by weight: 0.15% ≦C≦ 0.22%; 1.6% ≦Mn≦ 2.2%; 0.6% ≦Si≦ 1%; 1% ≦Cr≦ 1.5%; 0.01%≦Ni≦ 1%; 0% ≦S≦ 0.06%; 0% ≦P≦ 0.0...
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WO/2019/182054A1 |
The steel material according to an embodiment of the present invention has a predetermined chemical composition, and includes, in a region in which a distance r from the center of a cross-section thereof perpendicular to the length direc...
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WO/2019/181889A1 |
A device for carrying out traverse hardening on a shaft-like body comprising a main body section, a first small-diameter section provided on one axial end of the main body section and having a smaller outer diameter than the main body se...
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WO/2019/180741A1 |
This invention comprises a monometallic inlet valve for a CRAIL engine developed in a steel material that can be hardened. The steel material used may be amenable for induction hardening. In one embodiment, the steel material used is Mar...
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