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    • 76. 发明授权
    • Laser welding of a sleeve within a tube
    • 管内套筒的激光焊接
    • US4694136A
    • 1987-09-15
    • US821675
    • 1986-01-23
    • William H. KasnerGerald J. BruckRichard A. MillerVincent A. Toth
    • William H. KasnerGerald J. BruckRichard A. MillerVincent A. Toth
    • B23K26/04B23K26/28B23K26/00
    • B23K26/106B23K26/04B23K26/043B23K26/28
    • A method for welding a sleeve within a tube of a steam generator, the sleeve being in close contact with the tube. A welding head of a weld head apparatus is positioned within the tube at a predetermined weld site, a laser beam is directed to the welding head, the beam is focused with a focusing means, the focused laser beam is reflected with a welding mirror means into contact with a portion of the sleeve to be welded to the tube, the welding mirror means is maintained a predetermined focal distance from the inside surface of the sleeve, and the welding head is rotated to complete a weld fusion path about the inner periphery of the sleeve. Shielding gas is used to shield the weld site. A robotic arm positions the weld head apparatus within the steam generator. At each end of the sleeve, multiple discrete weld paths or a continuous helical multiple weld path are welded. The sleeve is preferably welded to the tube along the weld path with a fusion width at the interface between the sleeve and tube of at least 0.045 inches and the tube is penetrated to a depth of at least 0.25 inches. The laser delivers 500 to 700 watts to the weld area.
    • 一种用于将套筒焊接在蒸汽发生器的管内的方法,套筒与管子紧密接触。 焊接头装置的焊头位于预定焊接部位的管内,激光束被引导到焊接头,光束用聚焦装置聚焦,聚焦的激光束用焊接镜装置反射成 与要焊接的套筒的一部分接触管,焊接镜装置保持与套筒内表面的预定焦距,并且焊接头旋转以完成围绕着内壁的内周的焊接熔接路径 袖。 屏蔽气体用于屏蔽焊点。 机器臂将焊接头装置定位在蒸汽发生器内。 在套管的每个端部,焊接有多个分立的焊接路径或连续的螺旋形多个焊接路径。 套管优选地沿着焊接路径焊接到管子上,其中在套筒和管之间的界面处的熔化宽度至少为0.045英寸,并且管子穿透至少0.25英寸的深度。 激光器向焊接区域提供500至700瓦特。
    • 77. 发明授权
    • Pulsed laser machining apparatus
    • 脉冲激光加工设备
    • US4560856A
    • 1985-12-24
    • US414264
    • 1982-09-01
    • Richard A. MillerGeorge D. Bucher
    • Richard A. MillerGeorge D. Bucher
    • B23K26/08B23K26/00B23K26/02B23K26/04B23K26/067B23K26/12G21C3/34
    • B23K26/0673B23K26/042B23K26/043B23K26/0613B23K26/067
    • Apparatus and method for directing a controlled number of laser pulses onto a work piece to be machined. More specifically, the laser machining apparatus includes an excitable laser and an excitation lamp for continuously exciting the laser to emit a sequence of laser pulses. The application of the laser pulses to the work piece is controlled by an inner-cavity shutter that is opened to permit a precise number of pulses to be directed onto the work piece. The frequency (REP RATE) and pulse width of the laser pulses are controlled by the excitation lamp and, in turn, are set to create a progressive weld of significant depth and structural integrity. In particular there is provided control means for counting the number of laser pulses applied to a machining site of the work piece, whereby a known controllable quantity of energy is imparted to each site. To this end, the counting of the laser pulses begins after the completion of a laser pulse, whereby the actuation of the inner-cavity shutter is not synchronized to the computer but rather to the laser emission so that only whole laser pulses will be applied to the site.
    • 将受控数量的激光脉冲引导到待加工的工件上的装置和方法。 更具体地,激光加工设备包括可激发激光器和用于连续激发激光器以发射一系列激光脉冲的激励灯。 将激光脉冲施加到工件由通过打开以允许将精确数量的脉冲引导到工件上的内腔挡板来控制。 激光脉冲的频率(REP RATE)和脉冲宽度由激发灯控制,反过来又被设置为产生显着深度和结构完整性的渐进焊缝。 特别地,提供了用于对施加到工件的加工位置的激光脉冲的数量进行计数的控制装置,由此向每个位置施加已知的可控量的能量。 为此,激光脉冲的计数在激光脉冲完成之后开始,由此内腔快门的致动不与计算机同步,而是激光发射,使得仅将整个激光脉冲施加到 网站。
    • 79. 发明授权
    • Apparatus and method for laser machining in a non-reactive environment
    • 非反应性环境中激光加工的装置和方法
    • US4492843A
    • 1985-01-08
    • US414242
    • 1982-09-01
    • Richard A. MillerGerald G. Lessman
    • Richard A. MillerGerald G. Lessman
    • B23K26/08B23K26/00B23K26/12B23K26/14B23K26/20B23K26/42B23K37/00G21C3/34
    • B23K26/123B23K26/1437B23K26/1462B23K26/706
    • Apparatus and method are disclosed for machining and, in particular, welding a work piece in an environment comprised of a gas non-reactive to the material of the work piece to minimize the contamination of the welds effected on the work piece. In an illustrative embodiment of this invention, there is provided a welding chamber for receiving the work piece and for establishing the welding environment therein. The welding chamber has an input port disposed in a bottom portion thereof, that is coupled to means in the form of a controllable pump for directing or pumping the non-reactive or inert gas, e.g. argon, through the input port and into the welding chamber. The welding chamber also includes an output port, whereby the non-reactive gas may escape from the welding chamber. A diffuser plate distributes the non-reactive gas substantially uniformly across the cross section of the welding chamber, whereby a laminar flow of the non-reactive gas is directed over the work piece and is permitted to escape through the output port.
    • 公开了用于加工的装置和方法,并且特别地,将工件焊接在由与工件的材料不反应的气体组成的环境中,以最小化在工件上产生的焊缝的污染。 在本发明的说明性实施例中,提供了用于接收工件并在其中建立焊接环境的焊接室。 焊接室具有设置在其底部的输入端口,其连接到可控泵形式的装置,用于引导或泵送非反应性或惰性气体,例如, 氩气,通过输入端口进入焊接室。 焊接室还包括输出端口,由此非反应性气体可能从焊接室逸出。 扩散板将非反应性气体基本上均匀地分布在焊接室的横截面上,由此非反应性气体的层流被引导到工件上并被允许通过输出端口逸出。
    • 80. 发明授权
    • Destruction method for the wet combustion of organics
    • 有机物湿法燃烧的破坏方法
    • US4276198A
    • 1981-06-30
    • US88272
    • 1979-10-25
    • Richard A. Miller
    • Richard A. Miller
    • B01J27/25C02F1/72C02F11/08B01J27/24B01J27/06
    • C02F1/725B01J27/25C02F11/08
    • The method of oxidizing organic compounds, such as 1,3,5-trichlorobenzene, in an aqueous system of pH not more than about 4, the method comprising oxidizing the organic compound by contacting the compound with an oxidizing agent, such as air, in the aqueous system in the presence of a catalytic amount of a cocatalyst system, is improved by using as the cocatalyst system a catalytic combination of nitrate ions, at least one of either bromide ions or iodide ions, and transition metal ions of at least one transition metal having two or more oxidation states, such as vanadium ions. This cocatalyst system enhances the rate of oxidation of the organic compounds.
    • 在pH不大于约4的水性体系中氧化有机化合物如1,3,5-三氯苯的方法,包括通过使化合物与氧化剂如空气接触来氧化有机化合物的方法 在催化量的助催化剂体系存在下,水系统通过使用作为助催化剂体系的硝酸根离子,溴离子或碘离子中的至少一种和至少一个过渡的过渡金属离子的催化组合而得到改善 具有两种或更多种氧化态的金属,例如钒离子。 该助催化剂体系提高了有机化合物的氧化速率。