Case Hardening Steel Tube Having Improved Workability and a Process for its Manufacture
    21.
    发明申请
    Case Hardening Steel Tube Having Improved Workability and a Process for its Manufacture 审中-公开
    具有改进的可加工性的壳体硬化钢管及其制造工艺

    公开(公告)号:US20100051143A1

    公开(公告)日:2010-03-04

    申请号:US12557353

    申请日:2009-09-10

    Applicant: Kenichi Beppu

    Inventor: Kenichi Beppu

    Abstract: A case hardening steel tube which has a hardness of 72-80 HRB and which gives a carburized layer with a high strength and high wear resistance and adequate resistance to impact fracture when it is formed into a final product by working and subsequent carburizing and quenching under relatively mild conditions is manufactured by forming a tube from a steel having a steel composition comprising, in mass percent, C: 0.1-0.25%, Si: 0.2-0.4%, Mn: 0.3-0.9%, P: at most 0.02%, S: 0.001-0.15%, Cr: 0.5-0.9%, Mo: 0.15-1%, Al: 0.01-0.1%, B: 0.0005-0.009%, N: less than 0.006%, and a remainder essentially of Fe, then subjecting the resulting steel tube to normalizing by soaking at a temperature of 880-980° C. followed by cooling at a cooling rate of at most 70° C. per minute, carrying out cold working of the normalized steel tube, and then annealing the cold worked steel tube at a temperature of 700-820° C.

    Abstract translation: 一种硬化钢管,其硬度为72-80HBB,并且当通过加工和随后的渗碳和淬火形成最终产品时,其具有高强度和高耐磨性和足够的抗冲击断裂的渗碳层 通过从具有以质量%计含有C:0.1-0.25%,Si:0.2-0.4%,Mn:0.3-0.9%,P:至多0.02%的钢组成的钢制成管,制造相对温和的条件, S:0.001-0.15%,Cr:0.5-0.9%,Mo:0.15-1%,Al:0.01-0.1%,B:0.0005-0.009%,N:小于0.006%,余量基本上由Fe组成 使所得到的钢管在880-980℃的温度下浸泡均匀化,然后以每分钟70℃以下的冷却速度进行冷却,对归一化钢管进行冷加工,然后退火 冷加工钢管温度在700-820°C

    HIGH-STRENGTH COLD-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME
    22.
    发明申请
    HIGH-STRENGTH COLD-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME 审中-公开
    高强度冷轧钢板及其制造方法

    公开(公告)号:US20100035079A1

    公开(公告)日:2010-02-11

    申请号:US12527879

    申请日:2007-12-14

    Abstract: A high-strength cold-rolled steel sheet having a tensile strength of 340 MPa or more, which can prevent galling, can be manufactured even if a large number of the steel sheets are continuously press-formed. This is because a surface texture thereof is con-trolled so that the surface texture includes flat areas in which a roughness profile has a deviation of ±2 μm or less from a filtered waviness curve and a dented portion having a maximum depth between 10 μm and 50 μm from the filtered waviness curve, wherein an average area of the dented portion is more than 0.01 mm2 and 0.2 mm2 or less, and an area fraction of the dented portion relative to the entire surface thereof is 5% or more and less than 20%.

    Abstract translation: 即使连续地压制多个钢板,也可以制造能够防止磨损的抗拉强度为340MPa以上的高强度冷轧钢板。 这是因为其表面纹理被控制,使得表面纹理包括平坦区域,其中粗糙度轮廓与过滤的波纹曲线具有±2μm或更小的偏差,以及具有最大深度在10um和 50μm,其中凹陷部分的平均面积大于0.01mm 2和0.2mm 2或更小,并且凹陷部分相对于其整个表面的面积分数为5%以上且小于20% %。

    METHOD AND APPARATUS FOR HARDENING A SURFACE OF A COMPONENT
    23.
    发明申请
    METHOD AND APPARATUS FOR HARDENING A SURFACE OF A COMPONENT 审中-公开
    用于硬化组分表面的方法和装置

    公开(公告)号:US20090277541A1

    公开(公告)日:2009-11-12

    申请号:US11720735

    申请日:2005-11-24

    Abstract: A method and apparatus for surface hardening parts is disclosed. To harden a surface of a part, a relative movement, or advancing motion, is established between the part and at least one sonotrode-like tool which is excited in the ultrasonic frequency range. The tool is aligned during the surface hardening in such a way to the surface of the part to be hardened that a tool axis running in the effective direction of the tool runs at an angle to the surface of the part to be hardened.

    Abstract translation: 公开了一种用于表面硬化部件的方法和装置。 为了硬化零件的表面,在部件与在超声波频率范围内被激发的至少一个超声焊丝样工具之间建立相对运动或前进运动。 在表面硬化期间,该刀具在待硬化部件的表面上被对准,使得沿着刀具的有效方向延伸的刀具轴线与待硬化部件的表面成一定角度。

    Method for producing antifriction layer of a plain bearing
    24.
    发明申请
    Method for producing antifriction layer of a plain bearing 审中-公开
    滑动轴承的抗磨层的制造方法

    公开(公告)号:US20090205798A1

    公开(公告)日:2009-08-20

    申请号:US11597608

    申请日:2006-04-26

    Abstract: The invention relates to foundry engineering, more specifically to producing an antifriction layer of a plain bearing by casting babbitt into a bearing shell or backing and is applicable to the manufacture and renewal of plain bearings.The invention is aimed at improving the quality of a plain bearing antifriction layer.A method for producing an antifriction layer of a plain bearing including: casting babbitt into a bearing shell or backing and forcedly cooling the babbitt at a speed providing structural uniformity of the antifriction layer, mainly by cooling babbitt on the cast-in layer side, characterized in that said casting of babbitt into a bearing shell or backing produces a semifinished antifriction layer which is subjected to plastic deformation by means of a punch under superplasticity conditions to produce an antifriction layer, the bearing shell or backing being used as a die.

    Abstract translation: 本发明涉及铸造工程,更具体地涉及通过将巴氏合金铸造成轴承壳或背衬来生产滑动轴承的减摩层,并且适用于滑动轴承的制造和更新。 本发明旨在提高滑动轴承减摩层的质量。 一种用于制造滑动轴承的减摩层的方法,包括:将巴氏合金铸造到轴承壳或背衬中,并以提供减摩层的结构均匀性的速度强制冷却巴氏合金,主要通过在浇铸层侧冷却巴氏合金,其特征在于 由于所述将巴氏合金铸造成轴承壳或背衬产生半成品的减摩层,其在超塑性条件下通过冲头进行塑性变形以产生减摩层,所述轴承壳或背衬用作模具。

    LASER SHOCK PEENING OF MEDICAL DEVICES
    25.
    发明申请
    LASER SHOCK PEENING OF MEDICAL DEVICES 审中-公开
    医疗器械激光冲击

    公开(公告)号:US20090043228A1

    公开(公告)日:2009-02-12

    申请号:US11834496

    申请日:2007-08-06

    Abstract: A laser shock peening process for producing one or more compressive residual stress regions in a medical device is disclosed. A high-energy laser apparatus can be utilized to direct an intense laser beam through a confining medium and onto the target surface of a workpiece. An absorption overlay disposed on the target surface of the workpiece absorbs the laser beam, inducing a pressure shock wave that forms a compressive residual stress region deep within the workpiece. Medical devices such as stents, guidewires, catheters, and the like having one or more of these compressive residual stress regions are also disclosed.

    Abstract translation: 公开了一种用于在医疗装置中产生一个或多个压缩残余应力区域的激光冲击硬化方法。 可以使用高能激光装置将强激光束引导通过约束介质和工件的目标表面。 设置在工件的目标表面上的吸收层吸收激光束,引起在工件内部形成压缩残余应力区域的压力冲击波。 还公开了具有这些压缩残余应力区域中的一个或多个的医疗装置,例如支架,导丝,导管等。

    Ultrasonic impact machining of body surfaces to correct defects and strengthen work surfaces
    26.
    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

    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。

    Method and apparatus for preventing or arresting crack development and propagation
    27.
    发明申请
    Method and apparatus for preventing or arresting crack development and propagation 审中-公开
    防止或阻止裂纹发育和传播的方法和装置

    公开(公告)号:US20070227215A1

    公开(公告)日:2007-10-04

    申请号:US11709621

    申请日:2007-02-22

    Applicant: Paul Prevey

    Inventor: Paul Prevey

    Abstract: A method and surface treatment apparatus for preventing or arresting the development and propagation of cracks in the material surrounding a fastener. The method includes introducing compressive residual stresses in the material surrounding the fastener. The compressive residual stresses offset the high residual tensile and applied stresses which the material may be subjected to in operation and thereby prevent or arrest the development of cracks. The surface treatment apparatus comprises a compression tool, positioning device and at least one sensor for determining the location of a fastener on the surface being treated. Using the output of the sensor, the surface treatment apparatus is positioned relative to a fastener. The compression tool is impinged against the surface of the material adjacent to the fastener and rotated around the perimeter of the fastener thereby inducing a zone of compressive residual stress.

    Abstract translation: 一种用于防止或阻止紧固件周围的材料中的裂纹的展开和传播的方法和表面处理装置。 该方法包括在紧固件周围的材料中引入压缩残余应力。 压缩残余应力抵消材料在操作中可能经受的高残余拉伸和施加应力,从而防止或阻止裂纹的发展。 表面处理装置包括压缩工具,定位装置和用于确定紧固件在被处理表面上的位置的至少一个传感器。 使用传感器的输出,表面处理装置相对于紧固件定位。 压缩工具撞击靠近紧固件的材料的表面,并且围绕紧固件的周边旋转,从而引起压缩残余应力的区域。

    High efficiency hydrofoil and swim fin designs
    28.
    发明申请
    High efficiency hydrofoil and swim fin designs 审中-公开
    高效水翼和泳翅设计

    公开(公告)号:US20070173143A1

    公开(公告)日:2007-07-26

    申请号:US11489938

    申请日:2006-07-19

    Applicant: Peter McCarthy

    Inventor: Peter McCarthy

    Abstract: Methods are disclosed for increasing lift and decreasing drag on hydrofoils and swim fins. Methods are disclosed for providing a hydrofoil with a substantially longitudinal recess or venting system located substantially along the center axis of the hydrofoil. Methods also include providing the attacking surfaces of hydrofoils with an anhedral contour that forms a substantially lengthwise channel with the recess or venting means located along the center axis of this lengthwise channel. Methods are also disclosed for arranging a central recess or venting system to permit water to flow through it toward the lee surfaces in order to reduce the occurrence of outward directed spanwise flow conditions along the attacking surfaces and encourage inward directed spanwise flow conditions to occur along the attacking surfaces. Methods are disclosed for applying lift generating and drag reducing methods to both non-flexible and flexible hydrofoil blades that are used in reciprocating propulsion strokes through a fluid medium. Methods are also provided for controlling and reducing the build up of torsional stress forces within a flexible hydrofoil as it is encouraged to twist to a reduced angle of attack during use.

    Abstract translation: 公开了用于增加水翼和水翼上的牵引力和减小阻力的方法。 公开了用于提供具有基本上沿着水翼的中心轴线定位的基本上纵向的凹部或排气系统的水翼的方法。 方法还包括提供水翼的攻击表面,其具有形成沿着该纵向通道的中心轴线设置的凹部或排气装置的基本长度方向的通道。 还公开了用于布置中央凹部或排气系统以允许水通过其流向lee表面的方法,以便减少沿着攻击表面的向外指向的翼展式流动状况的发生,并且促进向内的有向的翼展式流动条件沿着 攻击表面。 公开了用于将升力产生和减阻方法应用于通过流体介质的往复推进冲程中使用的非柔性和柔性水翼叶片的方法。 还提供了用于控制和减少柔性水翼内的扭转应力的累积的方法,因为它被鼓励在使用期间扭转成减小的迎角。

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