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    AL-SI COATED PRESS HARDENING COMPONENT, A PREPARATION METHOD AND USE THEREOF
    11.
    发明公开
    AL-SI COATED PRESS HARDENING COMPONENT, A PREPARATION METHOD AND USE THEREOF 审中-公开

    公开(公告)号：US20240271238A1

    公开(公告)日：2024-08-15

    申请号：US18434748

    申请日：2024-02-06

    Applicant: The University of Hong Kong

    Inventor： Mingxin HUANG ,  Ming GUAN

    IPC: C21D8/00 ,  C21D1/84

    CPC classification number: C21D8/005 ,  C21D1/84 ,  C21D2201/00 ,  C21D2211/001

    Abstract: An Al—Si coated press hardening component, wherein the Al—Si coating comprises a low-Al content ferrite layer with an Al content of less than 5 wt % and a thickness of greater than 5 μm, and having a maximum bending angle of the Al—Si coated press hardening component is greater than 65°. The thickness of the tough low-Al content ferrite layer in the Al—Si coating after hot stamping, reaching 5-100 μm, by improving the hot stamping process, so that the formation or propagation of cracks on the surface or the coating is effectively prevented, and the bendability of the pre-coated steel after hot stamping is improved. At the same time, the hot stamping process of the present invention can take into account or optimize the microstructure of the steel substrate to further improve the bendability and tensile property of the whole material.

    METHOD FOR MANUFACTURING SINTERED MAGNET
    15.
    发明申请
    METHOD FOR MANUFACTURING SINTERED MAGNET 审中-公开
    制造烧结磁体的方法

    公开(公告)号：US20150206654A1

    公开(公告)日：2015-07-23

    申请号：US14408983

    申请日：2013-06-26

    Applicant: Nissan Motor Co., Ltd.

    Inventor： Michihiro Sako ,  Shinichirou Fujikawa ,  Akihiko Ikeda ,  Hiroki Matsunae ,  Takashi Furuya

    IPC: H01F41/02 ,  C22C38/00 ,  B22F3/24 ,  H01F1/057 ,  B22F3/26 ,  B22F3/12

    CPC classification number: H01F41/0266 ,  B22F3/12 ,  B22F3/164 ,  B22F3/24 ,  B22F3/26 ,  B22F2003/248 ,  B22F2998/10 ,  C21D1/26 ,  C21D2201/00 ,  C22C38/002 ,  C22C38/005 ,  H01F1/0577 ,  H01F41/0293 ,  B22F3/02 ,  B22F3/10

    Abstract: A method for manufacturing a sintered magnet includes molding a green compact formed by compacting a magnet powder by press-molding the magnet powder, the green compact forming an R—Fe—B based sintered magnet having Nd as the principal component and containing a rare earth element R, sintering the green compact by heating to a sintering temperature, so as to mold a sintered magnet, pressure molding the sintered magnet by heating to a temperature not exceeding the sintering temperature, so as to correct dimensions of the sintered magnet, and adjusting the texture of the sintered magnet by aging heat treatment using heated atmosphere produced when correcting the dimensions of the sintered magnet at a temperature not exceeding the temperature during the pressure molding.

    Abstract translation: 一种烧结磁体的制造方法，其特征在于，将通过将所述磁体粉末进行压制成型来形成通过压制磁体粉末而形成的生坯，所述生坯以形成以Nd为主要成分并含有稀土的R-Fe-B系烧结磁体 元件R，通过加热到烧结温度烧结生坯，从而模制烧结磁体，通过加热到不超过烧结温度的温度对烧结磁体进行加压成型，以校正烧结磁体的尺寸，并调整 通过在不超过压力成型时的温度的温度下校正烧结磁体的尺寸时产生的使用加热气氛的老化热处理的烧结磁体的织构。

    PULSED LASER PROCESSING METHOD FOR PRODUCING SUPERHYDROPHOBIC SURFACES
    16.
    发明申请
    PULSED LASER PROCESSING METHOD FOR PRODUCING SUPERHYDROPHOBIC SURFACES 审中-公开
    用于生产超级表面的脉冲激光加工方法

    公开(公告)号：US20140314995A1

    公开(公告)日：2014-10-23

    申请号：US14323431

    申请日：2014-07-03

    Applicant: IMRA AMERICA, INC.

    Inventor： Bing LIU ,  Yuki ICHIKAWA

    IPC: B23K26/00

    CPC classification number: B23K26/355 ,  B05D3/06 ,  B05D5/08 ,  B05D5/083 ,  B05D2451/00 ,  B23K26/009 ,  C21D1/09 ,  C21D10/00 ,  C21D2201/00 ,  Y10T428/24355 ,  B05D2401/32 ,  B05D2401/40

    Abstract: A method of pulsed laser processing of solid surface for enhancing surface hydrophobicity is disclosed wherein the solid surface is covered with a transparent medium during laser processing and the laser beam incidents through the covering medium and irradiates the solid surface. Two effects are obtained simultaneously. One is the laser-induced texture formation directly under the laser irradiation. The other is the deposition of the laser-removed materials along the laser scan lines. Both effects introduce surface roughness on nanometer scales, and both enhance surface hydrophobicity, rendering superhydrophobicity on the surfaces of both the laser-irradiated solid and the covering medium. Because the beam scan line spacing can be larger than a single scan line width by multiple times, this method provides a high processing speed of square inch per minute and enables large area processing.

    Abstract translation: 公开了一种用于提高表面疏水性的固体表面的脉冲激光加工方法，其中固体表面在激光加工期间被透明介质覆盖，并且激光束通过覆盖介质入射并照射固体表面。 同时获得两个效果。 一种是直接在激光照射下的激光诱导纹理形成。 另一种是激光去除材料沿着激光扫描线的沉积。 这两种效应都会在纳米尺度上引入表面粗糙度，同时增强表面疏水性，从而在激光照射的固体和覆盖介质的表面上产生超疏水性。 由于光束扫描线间距可以大于单个扫描线宽度多次，因此该方法提供了高达每分钟平方英寸的处理速度，可实现大面积处理。

    Ultrasonic impact machining of body surfaces to correct defects and strengthen work surfaces
    17.
    发明授权
    Ultrasonic impact machining of body surfaces to correct defects and strengthen work surfaces 有权
    超声波冲击加工机身表面以纠正缺陷并加强工作表面

    公开(公告)号：US07431779B2

    公开(公告)日：2008-10-07

    申请号：US11167863

    申请日：2005-06-28

    Applicant: Efim S. Statnikov

    Inventor： Efim S. Statnikov

    IPC: C21D1/04

    CPC classification number: B23P6/00 ,  B06B1/0253 ,  B23K9/32 ,  B23K13/00 ,  B23K20/10 ,  B23K20/106 ,  B23P9/04 ,  C21D1/09 ,  C21D7/04 ,  C21D9/0068 ,  C21D9/32 ,  C21D9/38 ,  C21D9/40 ,  C21D9/50 ,  C21D10/00 ,  C21D2201/00 ,  Y10S29/046 ,  Y10S72/71 ,  Y10S148/902 ,  Y10T428/12472 ,  Y10T428/12993

    Abstract: Metallic workpieces of diverse shapes having work surfaces which are deformed at the surface and adjacent sub-surface layers by surface impact from ultrasonic transducers employing freely axially moving impacting elements propelled and energized by a transducer oscillating surface vibrating periodically at an ultrasonic frequency. The impacting elements are propelled in a random aperiodic and controlled impact mode at different phases of the periodic oscillation cycles. The transducer may be portable and provides a series of mechanically interconnected stages having mechanical resonances harmonically related as a multiple of the primary ultrasonic frequency and have matched stage resistances under instantaneous loading when the impact elements are driven by the transducer oscillating surface into the surface of the workpiece. This mode of operation produces Q-factor amplification of the input ultrasonic power oscillator energy at the impact needles and high propulsion velocities making it possible to machine metallic workpiece bodies to greater depths for compressing the metal to increase compressive strength of the workpiece work surfaces to substantially the ultimate material strength. The impact machining is done at ambient temperatures.

    Abstract translation: 各种形状的金属工件具有工作表面，其工作表面在表面和相邻的子表面层上通过来自超声波换能器的表面冲击而产生变形，所述超声波换能器采用由以超声波频率周期性振荡的振荡器振荡表面推动和激励的自由轴向运动的冲击元件。 冲击元件在周期性振荡周期的不同阶段以随机的非周期和受控冲击模式推进。 传感器可以是便携式的，并且提供一系列机械互连的级，其具有与初级超声波频率的倍数谐波相关的机械共振，并且当冲击元件被换能器振荡表面驱动到 工件。 这种操作模式在冲击针上产生输入的超声功率振荡器能量的Q因子放大和高推进速度，使得可以将金属工件体加工到更大的深度以压缩金属，从而将工件工作表面的抗压强度基本上 最终材料力量。 冲击加工在环境温度下进行。

    Ball-and-Roller Bearing
    18.
    发明申请
    Ball-and-Roller Bearing 审中-公开
    滚珠轴承

    公开(公告)号：US20070269336A1

    公开(公告)日：2007-11-22

    申请号：US10574567

    申请日：2004-09-30

    Applicant: Chikara Ohki ,  Kikuo Maeda

    Inventor： Chikara Ohki ,  Kikuo Maeda

    IPC: C22C38/50 ,  C21D9/40 ,  C22C38/08 ,  C22C38/18 ,  C22C38/22 ,  C22C38/46

    CPC classification number: C22C38/40 ,  C21D9/40 ,  C21D2201/00 ,  C22C38/02 ,  C22C38/04

    Abstract: Ball-and-roller bearing parts are alloyed with alloyed with 0.6% to 1.3% by weight of C, 0.3% to 3.0% by weight of Si, 0.2% to 1.5% by weight of Mn, 0.03% by weight or less of P, 0.03% by weight or less of S, 0.3% to 5.0% by weight of Cr, 0.1% to 3.0% by weight of Ni, 0.050% by weight or less of Al, 0.003% by weight or less of Ti, 0.0015% by weight or less of O, and 0.015% by weight or less of N with the remainder being made up of Fe and inevitable impurities. The part has a nitrogen-enriched layer. The austenite crystals of the steel have a grain size number of greater than 10.

    Abstract translation: 滚珠轴承部件与C：0.6〜1.3重量％，Si：0.3〜3.0重量％，Mn：0.2〜1.5重量％，P：0.03重量％以下， ，0.03重量％以下的S，0.3〜5.0重量％的Cr，0.1〜3.0重量％的Ni，0.050重量％以下的Al，0.003重量％以下的Ti，0.0015质量％ 以下，N为0.015重量％以下，余量由Fe和不可避免的杂质构成。 该部分具有富氮层。 钢的奥氏体晶体的晶粒数大于10。

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