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747 条记录 (耗时 0.119 秒)

    Manufacture of cutting structures for rotary drill bits
    62.
    发明授权
    Manufacture of cutting structures for rotary drill bits 失效
    旋转钻头切割结构的制造

    公开(公告)号：US4956238A

    公开(公告)日：1990-09-11

    申请号：US204688

    申请日：1988-06-09

    申请人： Nigel D. Griffin

    发明人： Nigel D. Griffin

    IPC分类号： B23K35/30 ,  B23K35/32 ,  E21B10/56 ,  E21B10/567

    CPC分类号： E21B10/567 ,  B23K35/3033 ,  B23K35/322 ,  Y10T428/30 ,  Y10T428/31678

    摘要： A cutting structure, for a rotary drill bit, is of the kind comprising a preform cutting element having a front cutting face formed of superhard material, such as polycrystalline diamond, and a rear face bonded to a carrier of less hard material, such as cemented tungsten carbide. The cutting element is bonded to the carrier by means of an alloy having the following composition:Ni about 30% to about 60%Pd about 30% to about 62%Si about 3% to about 15%wherein % is weight percent.An alternative alloy has the following composition:Cr about 4% to about 10%Fe about 1% to about 5%Si about 2% to about 7%C about 0.01% to about 0.10%B about 2% to about 5%Ni Balancewherein % is weight percent.

    Method for hardfacing metal articles
    63.
    发明授权
    Method for hardfacing metal articles 失效
    金属制品表面硬化方法

    公开(公告)号：US4942059A

    公开(公告)日：1990-07-17

    申请号：US250659

    申请日：1988-09-29

    申请人： Ian L. W. Wilson

    发明人： Ian L. W. Wilson

    IPC分类号： B23K35/32 ,  C23C4/02 ,  C23C4/12 ,  C23C16/34

    CPC分类号： C23C4/02 ,  B23K35/32 ,  C23C16/34 ,  C23C4/12 ,  Y10T428/12819

    摘要： The present invention provides a method for applying a hardface alloy coating on a metal substrate concurrently with a nitriding procedure so that the hardface coating is deposited and nitrided in one step. The deposition of the metal hardface coating is conducted in an atmosphere of nitrogen under nitriding conditions. The single step of metal deposition and nitriding is made possible by using a hardface alloy composition containing 20-75% niobium, 5-35% titanium and 10-60% tungsten.

    摘要翻译： 本发明提供了一种与氮化方法同时在金属基材上施加硬质合金涂层的方法，使得在一个步骤中沉积并氮化了表面涂层。 金属表面涂层的沉积在氮气氛下在氮化条件下进行。 通过使用含有20-75％铌，5-35％钛和10-60％钨的硬质合金组合物，可以实现金属沉积和氮化的一个步骤。

    Method of discharge coating and an apparatus therefor
    65.
    发明授权
    Method of discharge coating and an apparatus therefor 失效
    放电涂布方法及其设备

    公开(公告)号：US4866237A

    公开(公告)日：1989-09-12

    申请号：US533855

    申请日：1983-09-20

    申请人： Kiyoshi Inoue

    发明人： Kiyoshi Inoue

    IPC分类号： B05B5/06 ,  B23K11/00 ,  B23K35/32 ,  C23C26/00

    CPC分类号： B23K35/327 ,  B23K11/0013

    摘要： A discharge coating apparatus comprises an assembly for applying a vibrational motion in the longitudinal direction of an electrode while applying a voltage pulse in synchronization with the vibration to cause electrical discharge between the surface of a workpiece and the electrode and the formation of a coating layer on the workpiece of the material of the electrode due to the heat produced by the electrical discharge. An additional motion is applied to the electrode to cause the electrode to undergo reciprocal travel towards and away from the suirface of the workpiece at an angle relative thereto. The additional motion can be a rotational motion. The electrode can be formed with a concave portion at its tip or with an axial bore so that only an annulus of the electrode contacts the workpiece. The additional motion can be a skipping movement by utilizing a skipping mechanism consisting of an elastic memebr.

    摘要翻译： 放电涂布装置包括用于在电极的纵向方向上施加振动运动的组件，同时施加与振动同步的电压脉冲，以在工件表面和电极之间形成电镀并形成涂层 电极材料的工件由于放电产生的热量。 对电极施加额外的运动，使得电极以相对于其的角度经历往复移动的工件的表面。 附加运动可以是旋转运动。 电极可以在其尖端或轴向孔处形成凹部，使得只有电极的环与工件接触。 附加运动可以通过利用由弹性记忆体组成的跳跃机构来跳过运动。

    High molybdenum nickel-base alloy
    66.
    发明授权
    High molybdenum nickel-base alloy 失效
    高钼镍基合金

    公开(公告)号：US4846885A

    公开(公告)日：1989-07-11

    申请号：US125895

    申请日：1987-11-27

    申请人： Aziz Asphahani ,  Steven J. Matthews

    发明人： Aziz Asphahani ,  Steven J. Matthews

    IPC分类号： B23K35/32 ,  C22C1/04 ,  C22C19/03 ,  C22C27/04 ,  C22C30/00

    CPC分类号： C22C1/04 ,  B23K35/32 ,  C22C19/03

    摘要： Disclosed is a nickel-base alloy eminently suited for use as a welding filler material. The alloy contains over 40% molybdenum with an effective content of silicon to provide a valuable combination of engineering properties which includes the combination of high strength, excellent corrosion resistance and welding characteristics. Commercial production of the alloy may be in many forms, for example, castings, powder metallurgy articles, wrought products and the like. A typical alloy of this invention contains about 42% molybdenum, 0.25% silicon and the balance nickel plus modifying elements and impurities.

    摘要翻译： 公开了一种非常适合用作焊接填料的镍基合金。 该合金含有超过40％的钼，有效含量的硅，以提供工程性能的有价值的组合，其包括高强度，优异的耐腐蚀性和焊接特性的组合。 合金的商业生产可以是许多形式，例如铸件，粉末冶金制品，锻造产品等。 本发明的典型合金包含约42％的钼，0.25％的硅和余量的镍加修饰元素和杂质。

    Nickel-palladium based brazing alloys
    70.
    发明授权
    Nickel-palladium based brazing alloys 失效
    镍 - 钯基钎焊合金

    公开(公告)号：US4802933A

    公开(公告)日：1989-02-07

    申请号：US184324

    申请日：1988-04-21

    申请人： Anatol Rabinkin

    发明人： Anatol Rabinkin

    IPC分类号： B23K35/32 ,  C22C5/04

    CPC分类号： B23K35/322 ,  Y10T428/12431

    摘要： A nickel-palladium-based brazing alloy is disclosed having a composition consisting essentially of about 38 to about 55 atom percent palladium, about 19 to about 34.5 atom percent iron, about 11 to about 20 atom percent silicon, the balance being essentially nickel and incidential impurities. These alloys are especially suited for use as brazing filler metals in joining stainless steels and/or superalloys at temperatures above about 1000.degree. C. A process for brazing honeycomb structures formed at least in part from stainless steels and/or superalloys is also disclosed.

    摘要翻译： 公开了一种镍 - 钯基钎焊合金，其组成基本上由约38至约55原子百分比的钯，约19至约34.5原子％的铁，约11至约20原子％的硅，余量基本上为镍和总成 杂质。 这些合金特别适合用作在高于约1000℃的温度下接合不锈钢和/或超级合金的钎焊料。用于钎焊至少部分由不锈钢和/或超级合金形成的蜂窝结构的方法也被公开。