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公开(公告)号：US20240360538A1
公开(公告)日：2024-10-31
申请号：US18287864
申请日：2022-04-19
发明人： Sixin Zhao , Jiaqiang Gao , Zongze Huang
IPC分类号： C22C38/26 , C21D1/18 , C21D1/26 , C21D7/13 , C21D9/28 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/24 , C22C38/28
CPC分类号： C22C38/26 , C21D1/18 , C21D1/26 , C21D7/13 , C21D9/28 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/24 , C22C38/28
摘要： Disclosed are a steel for a high-temperature carburized gear shaft and a manufacturing method for the steel. The steel for the high-temperature carburized gear shaft comprises the following chemical components in percentage by mass: 0.17-0.22% of C, 0.05-0.35% of Si, 0.80-1.40% of Mn, 0.010-0.035% of S, 0.80-1.40% of Cr, 0.020-0.046% of Al, 0.006-0.020% of N, 0.002-0.030% of Nb, V≤0.02%, and Ti≤0.01%. Also disclosed is a manufacturing method for the steel for the high-temperature carburized gear shaft, comprising the steps of: smelting and casting; heating; forging or rolling; and finishing. By reasonably controlling chemical element compositions of the steel, the steel for the gear shaft in the present invention can maintain proper austenite grain size and stability at high temperature, maintains 5-8 grades of the austenite grain size before and after the high-temperature vacuum carburizing at 940-1050° C., can be effectively applied to high-end parts such as a gearbox for a vehicle or a speed reducer and a differential of a new energy vehicle, and has good application prospects and value.
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公开(公告)号：US20240360535A1
公开(公告)日：2024-10-31
申请号：US18765620
申请日：2024-07-08
申请人： Airbus SAS
IPC分类号： C21D10/00 , B23K26/08 , B23K26/356
CPC分类号： C21D10/005 , B23K26/0884 , B23K26/356
摘要： A system and device for laser shock peening device and components thereof. The system includes umbilical cords with flexible outer sheaths surrounding the fiber optic cable within the umbilical. The umbilical may include two different sections with different outer sheathes. The applicator device may have a laser peeing pen that has a longitudinal axis that is spaced from the longitudinal axis of the applicator device. In a method of operating the device, a first step includes a vertical movement, followed by a second step of rotation movement, and then another step of vertical movement opposite the first step.
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公开(公告)号：US20240360531A1
公开(公告)日：2024-10-31
申请号：US18579903
申请日：2022-06-22
发明人： Taiyo Asakawa , Shimpei Yoshioka , Shinjiro Kaneko
CPC分类号： C21D9/46 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0242 , C21D8/0273 , C21D8/0278 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C21D2211/001 , C21D2211/008
摘要： A steel sheet contains, in mass %, C: 0.15 to 0.45%, Si: 1.5% or less, Mn: 1.7% or less, P: 0.03% or less, S: less than 0.0020%, sol. Al: 0.20% or less, N: 0.005% or less, B: 0.0015 to 0.0100%, and at least one of Nb and Ti in a total amount of 0.005 to 0.080%, with the balance being Fe and incidental impurities. The area fraction of martensite with respect to the total area of the microstructure is 95 to 100%, and the diameter of prior γ grains is less than 11.0 μm. The number density A of precipitates having an equivalent circular diameter of 500 nm or more satisfies the formula: A (particles/mm2)≤8.5×105×[B].
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公开(公告)号：US20240360529A1
公开(公告)日：2024-10-31
申请号：US18272625
申请日：2021-12-09
发明人： Shuji Nishida , Ayako Ta
CPC分类号： C21D8/0236 , B21B1/22 , C21D8/0242 , C21D8/0278 , C21D9/46 , C22C38/60
摘要： A stainless steel sheet has a surface quality in which a core height Sk is 1.50 μm or less, a reduced peak height Spk is 0.20 μm or less, and an areal material ratio Smr2 that separates a reduced dale from a core is 80% or less, where the core height Sk, the reduced peak height Spk, and the areal material ratio Smr2 are as specified in JIS B 0681-2:2018. The stainless steel sheet has a whiteness of 50 or greater and an image clarity of 1% or greater.
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公开(公告)号：US12132025B2
公开(公告)日：2024-10-29
申请号：US17437805
申请日：2020-03-12
发明人： Takashi Yamada , Akihito Nishibayashi , Teruo Haibara , Daizo Oda , Motoki Eto , Tetsuya Oyamada , Takayuki Kobayashi , Tomohiro Uno
CPC分类号： H01L24/45 , B32B15/017 , B32B15/018 , C21D9/525 , H01L2224/43848 , H01L2224/45015 , H01L2224/45124 , H01L2224/45565 , H01L2224/45639 , H01L2224/45644
摘要： There is provided a metal-coated Al bonding wire which can provide a sufficient bonding reliability of bonded parts of the bonding wire under a high temperature state where a semiconductor device using the metal-coated Al bonding wire is operated. The bonding wire includes a core wire of Al or Al alloy, and a coating layer of Ag, Au or an alloy containing them formed on the outer periphery of the core wire, and the bonding wire is characterized in that when measuring crystal orientations on a cross-section of the core wire in a direction perpendicular to a wire axis of the bonding wire, a crystal orientation angled at 15 degrees or less to a wire longitudinal direction has a proportion of 30 to 90% among crystal orientations in the wire longitudinal direction. Preferably, the surface roughness of the wire is 2 μm or less in terms of Rz.
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公开(公告)号：US12129534B2
公开(公告)日：2024-10-29
申请号：US17801134
申请日：2021-05-07
发明人： Yuri Toda , Daisuke Maeda , Shingo Fujinaka
IPC分类号： C22C38/02 , C21D6/00 , C21D8/02 , C21D9/46 , C22C38/00 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18
CPC分类号： C22C38/18 , C21D6/001 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C21D2211/002 , C21D2211/005
摘要： This hot-stamping formed body has a predetermined chemical composition and has a metallographic structure consisting of, by area ratio, a total of 10% to 30% of ferrite and granular bainite and a remainder in microstructure consisting of one or more of martensite, bainite, and tempered martensite, and, in textures of a surface layer region and an inside region, ratios between a pole density of an orientation group consisting of {001} to {001} and a pole density of an orientation group consisting of {111} to {111} are controlled.
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公开(公告)号：US12129526B2
公开(公告)日：2024-10-29
申请号：US17413781
申请日：2019-12-27
发明人： Suoquan Zhang , Sihai Jiao , Jianhua Ding , Xiaojun Liang
CPC分类号： C21D8/0247 , C21D8/0205 , C22C38/02 , C22C38/04 , C21D2211/005 , C21D2211/009
摘要： Provided are a gradient steel material having a surface layer with ferrite and an inner layer with ferrite+pearlite, and a manufacturing method, the weight percentages of the components are: C≤0.15%, Si≤1%, Mn≤1.5%, the balance of Fe and inevitable impurities, and the surface layer of the steel material is ferrite, the inner layer is ferrite+pearlite. The manufacturing method thereof includes: smelting, casting, rolling, heat treatment; wherein, in the heat treatment step, the steel material is heated above the austenitizing temperature Ac3, and hold at the temperature more than 3 min to ensure that the material is completely austenitized; subsequently, it is cooled to a temperature below Ar1 at a cooling rate lower than 0.5° C./s. The present steel material does not need to be obtained by means of the compound preparation of different materials, and is only processed and prepared by a single material, the process is short, the procedure is simple, and the cost is low.
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公开(公告)号：US20240356417A1
公开(公告)日：2024-10-24
申请号：US18653758
申请日：2024-05-02
发明人： Tesshu MURAKAWA , Yoshiaki NATORI
CPC分类号： H02K15/02 , C21D9/46 , H02K1/02 , H02K2213/03
摘要： A rotating electrical machine includes a stator, a rotor, and a casing that accommodates the stator and the rotor, in which a {111} orientation intensity (A) of a core material of the stator is in a range of 2 to 30, a {111} orientation intensity (B) of a core material of the rotor is in a range of 1 to 15, and both the orientation intensities satisfy a relationship of an expression (1) A>B.
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公开(公告)号：US12123081B2
公开(公告)日：2024-10-22
申请号：US17413638
申请日：2019-12-11
申请人： ArcelorMittal
CPC分类号： C22C38/08 , C21D8/0205 , C21D8/0226 , C21D9/08 , C21D9/46 , C22C38/002 , C22C38/105 , C22C38/12 , C22C38/14
摘要： A hot rolled steel having a composition including the following elements, expressed in percentage by weight:
15%≤Nickel≤25%
6%≤Cobalt≤12%
2%≤Molybdenum≤6%
0.1%≤Titanium≤1%
0.0001%≤Carbon≤0.03%
0.002%≤Phosphorus≤0.02%
0%≤Sulfur≤0.005%.
0%≤Nitrogen≤0.01%
and can contain one or more of the following optional elements
0%≤Aluminum≤0.1%
0%≤Niobium≤0.1%
0%≤Vanadium≤0.3%
0%≤Copper≤0.5%
0%≤Chromium≤0.5%
the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 20% to 40% Tempered Martensite, at least 60% of Reverted Austenite and inter-metallic compounds of Molybdenum, Titanium and Nickel.-
公开(公告)号：US12123069B2
公开(公告)日：2024-10-22
申请号：US17286148
申请日：2019-10-16
IPC分类号： C21D9/46 , C21D1/20 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/42 , C22C38/44 , C22C38/50 , C22C38/54 , C22C38/58 , C22C38/60
CPC分类号： C21D9/46 , C21D1/20 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/42 , C22C38/44 , C22C38/50 , C22C38/54 , C22C38/58 , C22C38/60 , C21D2211/002 , C21D2211/005 , C21D2211/008
摘要： A steel sheet having a specified chemical composition and a method for producing the steel sheet. The steel sheet has a microstructure comprising ferrite: 5% or less, and at least one of upper bainite, fresh martensite, tempered martensite, lower bainite, and retained γ: 95% to 100% by area percentage, and retained γ: 4% to 15% by volume percentage. Retained γUB has a specified area percentage SγUB, retained γLB has a specified distribution number NγLB, and at least one of (i) fresh martensite has a specified equivalent circular grain diameter and aspect ratio and (ii) retained γ grains has a specified equivalent circular grain diameter and aspect ratio.
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