Low cost brazes for titanium
    182.
    发明申请
    Low cost brazes for titanium 失效
    低成本的钛合金钎焊

    公开(公告)号:US20050011936A1

    公开(公告)日:2005-01-20

    申请号:US10621071

    申请日:2003-07-14

    摘要: A braze material and method of brazing titanium metals. The material may consist of Ti, Ni, Cu Zr, PM and M where PM is a precious metal and M may be Fe, V, Cr, Co, Mo, Nb, Mn, Si, Sn, Al, B, Gd, Ge or combinations thereof, with the (Cu+PM)/Ni ratio around 0.9. Optionally, a second brazing may be performed to rebraze any braze joint that did not braze successfully. The second brazing material has a lower braze temperature than the first and may consist of a mixture of Ti, Ni, Cu, Zr PM and M with from 1-20 wt% more Zr, PM, M or combinations thereof than the first braze. The braze material may be placed on a base material, in a vacuum furnace, and heated to form a braze joint between the braze and base material. The heating step may occur from about 800-975° C. and over 3 to 15 minutes.

    摘要翻译: 钎焊材料和钎焊钛金属的方法。 该材料可由Ti,Ni,CuZr,PM和M组成,其中PM是贵金属,M可以是Fe,V,Cr,Co,Mo,Nb,Mn,Si,Sn,Al,B,Gd,Ge 或其组合,(Cu + PM)/ Ni比约为0.9。 可选地,可以进行第二次钎焊以重新焊接未成功钎焊的任何钎焊接头。 第二钎焊材料具有比第一钎料温度低的第一钎焊温度,并且可以由Ti,Ni,Cu,Zr PM和M的混合物组成,与第一钎焊相比,具有1-20重量%以上的Zr,PM,M或其组合。 钎焊材料可以放置在基材上,在真空炉中,并被加热以在钎焊和基材之间形成钎焊接头。 加热步骤可以在约800-975℃和3至15分钟内进行。

    Diamond brazed to a metal
    185.
    发明授权
    Diamond brazed to a metal 失效
    金刚石钎焊成金属

    公开(公告)号:US5804321A

    公开(公告)日:1998-09-08

    申请号:US99640

    申请日:1993-07-30

    摘要: A unitary article that is solid at a temperature in excess of about 1100.ree. C. which includes a diamond, a metal, and a brazing material brazing the diamond and the metal. The brazing material includes a metal carbide adhering to the diamond and a platinum family metal or nickel adhering to the metal. The platinum family metal has dissolved therein carbide forming metal and contains particles of metal carbide. The article is made by depositing a platinum family metal or nickel on a metal melting above the melting point of the platinum family metal or nickel, depositing a carbide forming metal which is soluble in molten platinum family metal or nickel, heating the assembly until platinum family metal or nickel is in a molten state, and cooling the molten platinum family metal or nickel to a solid state. In another embodiment, the article of this invention is made by depositing an alloy of nickel and chromium on a metal melting above the melting point of the alloy, depositing a diamond on the alloy, heating to melt the alloy, and cooling the alloy to a solid state.

    摘要翻译: 在超过约1100℃的温度下固体的单体制品,其包括金刚石,金属和钎焊金刚石和金属的钎焊材料。 钎焊材料包括附着在金刚石上的金属碳化物和附着在金属上的铂族金属或镍。 铂族金属已经溶解有碳化物形成金属并且含有金属碳化物颗粒。 该物品通过在铂族金属或镍的熔点以上的金属熔融物上沉积铂族金属或镍制成,沉积可溶于熔融铂族金属或镍的碳化物形成金属,加热组件直至铂族 金属或镍处于熔融状态,并将熔融的铂族金属或镍冷却至固态。 在另一个实施方案中,本发明的制品是通过在合金熔点以上的金属熔体上沉积镍和铬的合金,在合金上沉积金刚石,加热熔化合金,并将合金冷却至 固体状态。

    Hardfacing material for rolling cutter drill bits
    187.
    发明授权
    Hardfacing material for rolling cutter drill bits 失效
    用于轧制刀具钻头的表面材料

    公开(公告)号:US5740872A

    公开(公告)日:1998-04-21

    申请号:US673978

    申请日:1996-07-01

    摘要: A material for applying hardfacings to the teeth of steel tooth rolling cutter drill bits comprises a mixture of refractory metal carbide, such as tungsten carbide, cobalt and metallic matrix powders formed into a core structure and surrounded by a thin metallic sheath. The metallic matrix powders include iron, deoxidizers and alloy powders. The ratio by weight of the metallic matrix powders to the sheath exceeds 2.5, so that the core structure provides most of the matrix material for the hardfacing and only a small proportion of such material is provided by the thin sheath, which may have a thickness of only 0.001" to 0.010". The core structure may include an organic binder, such as methylcellulose, to provide strength and to prevent segregation of the core materials.

    摘要翻译: 用于对钢齿切割钻头的牙齿施加硬化的材料包括形成为芯结构并被薄金属护套包围的难熔金属碳化物如碳化钨,钴和金属基质粉末的混合物。 金属基质粉末包括铁,脱氧剂和合金粉末。 金属基质粉末与护套的重量比超过2.5,使得芯结构提供用于表面硬化的大部分基质材料,并且只有一小部分这种材料由薄护套提供,薄护套可以具有 只有0.001“到0.010”。 核心结构可以包括有机粘合剂,例如甲基纤维素,以提供强度并防止芯材料的分离。

    Method of hard facing a substrate, and weld rod used in hard facing a
substrate
    188.
    发明授权
    Method of hard facing a substrate, and weld rod used in hard facing a substrate 失效
    面对基板的硬化方法以及用于硬面对基板的焊条

    公开(公告)号:US5667903A

    公开(公告)日:1997-09-16

    申请号:US438999

    申请日:1995-05-10

    摘要: A weld rod is prepared by placing a plurality of tungsten carbide/cobalt nuggets, preferably mixed with loose material, into a steel tube. The nuggets are previously sintered and have a generally ellipsoidal shape. A substrate is hard faced by progressively melting the weld rod onto the surface to be hard faced, and allowing the melted material to solidify on the surface.

    摘要翻译: 通过将多个优选与松散材料混合的碳化钨/钴块放置在钢管中来制备焊条。 矿块预先烧结并具有大致椭圆形状。 通过将焊条逐渐熔化到待硬表面的表面上并使熔融的材料在表面上固化,使基材硬面。

    Solid lubricant and hardenable steel coating system
    189.
    发明授权
    Solid lubricant and hardenable steel coating system 失效
    固体润滑剂和可硬化钢涂层系统

    公开(公告)号:US5464486A

    公开(公告)日:1995-11-07

    申请号:US239824

    申请日:1994-05-09

    申请人: V. Durga N. Rao

    发明人: V. Durga N. Rao

    摘要: A method of making anti-friction coated surfaces subject to sliding wear, comprising: (a) forming grains of agglomerated solid lubricant particles and air-hardenable, fusable ingredients such as steel particles, the particles being agglomerated by a low melting medium such as wax; (b) providing a light metal-based component surface; (c) thermally spraying such grains onto said surface in a thickness range of 100-250 microns to form a coating substantially devoid of the low melting medium (the temperature of said thermal spraying liquifying and eliminating the wax by ash-free combustion); (d) removing at least a portion of the fusable particles by honing to expose edges of such particles; and (e) subjecting the exposed particles to air hardening (i.e., by available interfacing friction).

    摘要翻译: 一种制造抗摩擦涂层表面经受滑动磨损的方法,包括:(a)形成附聚的固体润滑剂颗粒和可燃性易熔的成分如钢颗粒的颗粒,所述颗粒通过低熔点介质如蜡粘附 ; (b)提供基于轻金属的组分表面; (c)在100-250微米的厚度范围内将这种晶粒热喷涂到所述表面上以形成基本上不含低熔点介质的涂层(所述热喷涂的温度通过无灰燃烧来液化和除去蜡); (d)通过珩磨去除至少一部分可熔化颗粒以暴露这些颗粒的边缘; 和(e)使暴露的颗粒经受空气硬化(即,通过可用的接合摩擦)。

    Method and apparatus for forming rings from an active brazing alloy
    190.
    发明授权
    Method and apparatus for forming rings from an active brazing alloy 失效
    从活性钎焊合金形成环的方法和装置

    公开(公告)号:US5366000A

    公开(公告)日:1994-11-22

    申请号:US25264

    申请日:1993-03-02

    CPC分类号: B23K35/32 B22D11/0611

    摘要: The method for forming rings of uniform thickness from an active brazing alloy by melt-spinning the liquid alloy has the following steps: The alloy is liquefied in a crucible having a lateral opening whose height is approximately equal to the width of the ring material; the liquid alloy is forced out of the crucible onto the side surface of a metal drum of high thermal conductivity at a radial distance from the drum center approximately equal to the ring diameter, said metal drum rotating at a high circumferential velocity at a distance from the crucible approximately equal to the ring thickness; after an,,,approximately quarter to three-quarter turn of the active brazing alloy solidified on the metal drum into ring material, the latter is lifted off the metal drum by a mechanical deflector or a gas stream blown onto it in a direction opposite to the direction of rotation of the metal drum, and guided past the crucible; the ring helix being formed is guided around a lateral, coaxial extension of the metal drum which is located on one side of the crucible, serves as a winding mandrel, and has an end flange and a diameter slightly smaller than the inner diameter of the rings, and from the ring helix, the rings are cut off.

    摘要翻译: 通过熔融纺丝液态合金从活性钎焊合金形成均匀厚度的环的方法具有以下步骤:合金在具有高度近似等于环材料宽度的侧开口的坩埚中液化; 将液体合金从坩埚中被迫离开滚筒中心的径向距离大约等于环直径的高导热性金属滚筒的侧表面上,所述金属滚筒以高的圆周速度在与 坩埚大约等于环厚度; 在大约四分之一至四分之一圈的活性钎焊合金在金属滚筒上固化成环形材料后,后者通过机械偏转器或气流沿着与其相反的方向吹向金属滚筒 金属滚筒的旋转方向,并引导通过坩埚; 所形成的环形螺旋围绕位于坩埚一侧的金属滚筒的侧向同轴延伸部分引导,用作卷绕心轴,并且具有端部凸缘和直径略小于环的内径 ,并且从环形螺旋,环被切断。