Method for welding galvanized material
    61.
    发明授权
    Method for welding galvanized material 失效
    镀锌材料焊接方法

    公开(公告)号:US4873415A

    公开(公告)日:1989-10-10

    申请号:US151465

    申请日:1988-02-02

    Abstract: A method for welding galvanized material including a low vapor pressure mild steel core and a high vapor pressure rich zinc coating includes the steps of arranging components of such galvanized material in juxtaposed relationship at a lapped joint; and applying a high density laser energy beam along the lapped joint as a weave pattern in which the weave pattern has a width great enough to bridge the lapped joint and a weave pattern frequency which forms a predetermined weld pool between the components and wherein the lapped joint and weave pattern combine to define a vapor pressure relief path so that the weld pool will not be disrupted during the application of the high density laser energy beam to the galvanized components.

    Magnetic scale and method of manufacturing the same
    62.
    发明授权
    Magnetic scale and method of manufacturing the same 失效
    磁性刻度及其制造方法

    公开(公告)号:US4871624A

    公开(公告)日:1989-10-03

    申请号:US158707

    申请日:1988-02-22

    Inventor: Hiromi Nakamura

    Abstract: A magnetic scale includes a magnetic base member and a thin film formed on a surface of the magnetic member by plating or flame spraying nickle, chromium, manganese, silicon, boron, carbon, or a combination thereof. A laser beam or an arc discharge is applied to the outer circumferential surface of the thin film to fuse the metal of thin film and the metal of the base member under heat for thereby forming nonmagnetic modified portions on the surface of the base member.

    Abstract translation: 磁性标尺包括磁性基体和通过电镀或火焰喷涂镍,铬,锰,硅,硼,碳或其组合形成在磁性构件的表面上的薄膜。 将激光束或电弧放电施加到薄膜的外周表面,以在加热下使薄膜的金属和基底构件的金属熔合,从而在基底构件的表面上形成非磁性改性部分。

    Rugate optical filter systems
    63.
    发明授权
    Rugate optical filter systems 失效
    沉没式滤芯系统

    公开(公告)号:US4837044A

    公开(公告)日:1989-06-06

    申请号:US6661

    申请日:1987-01-23

    Abstract: A method for fabricating graded refractive index (rugate, optical filters as well as complex rugate filters having prespecified refractive index verses thickness profiles is disclosed. A plurality of at least two different compatable thin film deposition source components of different refractive index, which are stoichiometrically combinable in variable proportion, such as silicon nitride and silicon oxide, or zinc sulfide and zinc selenide, are used to form a thin film material with a refractive index which varies as a function of the proportions of the components. Each source component is separately laser flash evaporated and codeposited on a substrate to form a coating while monitoring the physical and optical thicknesses of the coating, to allow adjustment of the respective laser flash evaporation rates of the source components.

    Abstract translation: 公开了一种用于制造渐变折射率的方法(具有特殊性质的滤光器以及具有预定的折射率与厚度分布的复杂的粗糙度滤光器)。多个至少两种不同的折射率不同的兼容薄膜沉积源组件,其化学计量组合 使用诸如氮化硅和氧化硅,或硫化锌和硒化锌的可变比例来形成折射率随着部件比例而变化的薄膜材料,每个源组件分别是激光闪光 蒸发并共沉积在基材上以形成涂层,同时监测涂层的物理和光学厚度,以允许调节源组件的各自的激光闪蒸蒸发速率。

    Method for bonding using laser induced heat and pressure
    66.
    发明授权
    Method for bonding using laser induced heat and pressure 失效
    使用激光诱导的热和压力进行接合的方法

    公开(公告)号:US4684781A

    公开(公告)日:1987-08-04

    申请号:US695966

    申请日:1985-01-29

    Abstract: A coated substrate manufactured by applying a layer of a material to the substrate and generating thermal and pressure waves in the layer by exposing the layer to high intensity, short duration laser radiation, and the process of manufacturing such a coated substrate. The laser radiation is applied in an intensity range that creates an instantaneous surface vaporization of the layer material that in turn drives a pressure wave into the layer. The pressure wave interacts with the layer-substrate interface to create bonding between them of varying strengths and qualities depending on the intensity and duration of the initial laser pulse. A thermal wave is created in some regimes of operation, or results from compressional heating of the layer by the pressure wave, and is of sufficient energy to contribute to the bonding at the interface. The coating and the process for its creation has application in diverse areas where surface properties of a particular color, hardness, corrosion resistance, abrasion resistance, electrical conductivity, among others are desired.

    Abstract translation: 涂覆的基底,通过将材料层施加到基底上并通过将该层暴露于高强度,短持续时间的激光辐射以及制造这种涂覆的基底的过程而在该层中产生热和压力波。 激光辐射在强度范围内施加,其产生层材料的瞬时表面蒸发,其又将压力波驱动到层中。 压力波与层 - 衬底界面相互作用,以根据初始激光脉冲的强度和持续时间在不同强度和质量之间产生它们之间的结合。 在一些操作方式中产生热波,或者由压力波对该层的压缩加热产生热波,并且具有足够的能量以有助于界面处的键合。 涂层及其制造方法可以应用于需要特定颜色,硬度,耐腐蚀性,耐磨性,导电性等的表面特性的不同领域。

    Laser welding of galvanized steel
    67.
    发明授权
    Laser welding of galvanized steel 失效
    镀锌钢板激光焊接

    公开(公告)号:US4642446A

    公开(公告)日:1987-02-10

    申请号:US783687

    申请日:1985-10-03

    Abstract: An improved method is disclosed for producing a welded joint between galvanized steel sheet members utilizing a laser beam or the like. Surface regions of the galvanized member in the weld zone are selectively pretreated to remove the zinc coating and apply a nickel-base coating. The nickel coating avoids the vaporization problems associated with zinc, while providing suitable corrosion protection in the welded joint.

    Abstract translation: 公开了一种利用激光束等在镀锌钢板构件之间制造焊接接头的改进方法。 选择性地预处理焊接区域中的镀锌构件的表面区域以除去锌涂层并施加镍基涂层。 镍镀层避免了与锌相关的蒸发问题,同时在焊接接头上提供合适的防腐蚀保护。

    Laser welding high reflectivity metals
    69.
    发明授权
    Laser welding high reflectivity metals 失效
    激光焊接高反射率金属

    公开(公告)号:US4023005A

    公开(公告)日:1977-05-10

    申请号:US570104

    申请日:1975-04-21

    Inventor: Stephen R. Bolin

    Abstract: A method of welding high reflectivity materials by laser radiation comprising cladding material in the area to be welded with a low reflectivity material and subsequently directing a coherent beam of laser radiation, pulsed or continuous, onto the clad material to form in the weld area a molten alloy of the two materials which, when cooled, forms a weld nugget which is integrally bonded with the high reflectivity material.

    Abstract translation: 一种通过激光辐射焊接高反射率材料的方法,包括在待焊接的区域中的覆层材料与低反射率材料,并且随后将脉冲或连续的激光辐射的相干光束引导到包覆材料上,以在熔融区域中形成熔融 两种材料的合金在被冷却时形成与高反射率材料整体结合的焊点。

    Method of welding galvanized steel
    70.
    发明授权
    Method of welding galvanized steel 失效
    镀锌钢焊接方法

    公开(公告)号:US3969604A

    公开(公告)日:1976-07-13

    申请号:US512391

    申请日:1974-10-04

    Abstract: A method of welding galvanized steel with a high energy density beam is disclosed. The high energy density can be created by an electron or laser beam with a power density of at least 4.times.10.sup.6 watts per square inch. A flux material, such as iron oxide, is disposed adjacent the welding zone, preferably by painting thereon, which is effective to form a compound with the zinc of the galvanized steel upon heating. The compound has a vapor pressure substantially the same or lower than the vapor pressure of the steel substrate so that disruption of the weld puddle is prevented to insure that all of the weld puddle will be available to properly close the weld void.

    Abstract translation: 公开了一种以高能量密度束焊接镀锌钢的方法。 高能量密度可以通过功率密度至少为4×10 6瓦每平方英寸的电子或激光束产生。 助焊剂材料(例如氧化铁)被设置在焊接区附近,优选通过在其上涂漆,其在加热时与镀锌钢的锌形成化合物是有效的。 该化合物的蒸汽压基本上等于或低于钢基材的蒸汽压力,从而防止焊接熔池的破裂,以确保所有焊接熔池都可用于适当地封闭焊缝空隙。

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