Composite constructions having ordered microstructures
    3.
    发明授权
    Composite constructions having ordered microstructures 有权
    具有有序微结构的复合结构

    公开(公告)号:US06361873B1

    公开(公告)日:2002-03-26

    申请号:US09499929

    申请日:2000-02-08

    IPC分类号: B22F300

    摘要: Composite constructions of this invention comprise an ordered microstructure made up of multiple structural units that can be the same or different, and that comprise at least a first structural phase and a second structural phase. The first structural phase comprises a hard material that is selected from the group consisting of cermet materials, PCD, PCBN and mixtures thereof. The second structural phase is in contact with the first phase and comprises a material that is different than that selected to form the first structural phase. Additionally, the second structural phase is in contact with at least a portion of the first structural phase. Composite constructions of this invention can also have a multi-layer structures comprising two or more layers, wherein at least one of the layers comprises a composite construction having an ordered microstructure made up of the multiple structural units described above.

    摘要翻译: 本发明的复合结构包括由相同或不同的多个结构单元构成的并且包括至少第一结构相和第二结构相的有序微结构。 第一结构相包括选自金属陶瓷材料,PCD,PCBN及其混合物的硬质材料。 第二结构相与第一相接触并且包括不同于选择以形成第一结构相的材料。 另外,第二结构相与第一结构相的至少一部分接触。 本发明的复合结构还可以具有包括两层或更多层的多层结构,其中至少一层包括具有由上述多个结构单元构成的有序微结构的复合结构。

    Composite constructions with oriented microstructure
    4.
    发明授权
    Composite constructions with oriented microstructure 有权
    具有定向显微组织的复合结构

    公开(公告)号:US07264879B2

    公开(公告)日:2007-09-04

    申请号:US10957326

    申请日:2004-09-30

    IPC分类号: B22F3/00 B22F3/18

    摘要: In one embodiment, composite constructions of the invention are in the form of a plurality of coated fibers bundled together to produce a fibrous composite construction in the form of a rod. Each fiber has a core formed from a hard phase material, that is surrounded by a shell formed from a binder phase material. In another embodiment of the invention, monolithic sheets of the hard phase material and the binder phase material are stacked and arranged to produce a swirled composite in the form of a rod. In still another embodiment of the invention, sheets formed from coated fibers are arranged to produce a swirled composite. Inserts for use in such drilling applications as roller cone rock bits and percussion hammer bits, and shear cutters for use in such drilling applications as drag bits, that are manufactured using conventional methods from these composite constructions exhibit increased fracture toughness due to the continuous binder phase around the hard phase of the composites. These binder phases increase the overall fracture toughness of the composite by blunting or deflecting the tip of a propagating crack.

    摘要翻译: 在一个实施方案中,本发明的复合结构是多个涂覆纤维的形式,其捆扎在一起以产生呈杆形式的纤维复合结构。 每个纤维具有由硬相材料形成的芯,其由由粘结相材料形成的壳包围。 在本发明的另一个实施方案中,硬质相材料和粘合剂相材料的整体片层叠并布置成产生呈棒状的旋转复合材料。 在本发明的另一个实施例中,布置由涂覆纤维形成的片材以产生旋转复合材料。 用于诸如滚子锥形岩石钻头和冲击锤钻头的钻孔应用中的插入件以及用于诸如使用这些复合结构的常规方法制造的拖曳钻头的钻孔应用中的剪切切割机显示出由于连续粘合剂相的增加的断裂韧性 围绕复合材料的硬相。 这些粘合剂相通过钝化或偏转传播裂纹的尖端来增加复合材料的总断裂韧性。

    Composite constructions with oriented microstructure
    5.
    发明授权
    Composite constructions with oriented microstructure 失效
    具有定向显微组织的复合结构

    公开(公告)号:US06841260B2

    公开(公告)日:2005-01-11

    申请号:US10242203

    申请日:2002-09-12

    摘要: In one embodiment, composite constructions of the invention are in the form of a plurality of coated fibers bundled together to produce a fibrous composite construction in the form of a rod. Each fiber has a core formed from a hard phase material, that is surrounded by a shell formed from a binder phase material. In another embodiment of the invention, monolithic sheets of the hard phase material and the binder phase material are stacked and arranged to produce a swirled composite in the form of a rod. In still another embodiment of the invention, sheets formed from coated fibers are arranged to produce a swirled composite. Inserts for use in such drilling applications as roller cone rock bits and percussion hammer bits, and shear cutters for use in such drilling applications as drag bits, that are manufactured using conventional methods from these composite constructions exhibit increased fracture toughness due to the continuous binder phase around the hard phase of the composites. These binder phases increase the overall fracture toughness of the composite by blunting or deflecting the tip of a propagating crack.

    摘要翻译: 在一个实施方案中,本发明的复合结构是多个涂覆纤维的形式,其捆扎在一起以产生呈杆形式的纤维复合结构。 每个纤维具有由硬相材料形成的芯,其由由粘结相材料形成的壳包围。 在本发明的另一个实施方案中,硬质相材料和粘合剂相材料的整体片层叠并布置成产生呈棒状的旋转复合材料。 在本发明的另一个实施例中,布置由涂覆纤维形成的片材以产生旋转复合材料。 用于诸如滚子锥形岩石钻头和冲击锤钻头的钻孔应用中的插入件以及用于诸如使用这些复合结构的常规方法制造的拖曳钻头的钻孔应用中的剪切切割机显示出由于连续粘合剂相的增加的断裂韧性 围绕复合材料的硬相。 这些粘合剂相通过钝化或偏转传播裂纹的尖端来增加复合材料的总断裂韧性。

    Composite constructions with oriented microstructure
    6.
    发明授权
    Composite constructions with oriented microstructure 有权
    具有定向显微组织的复合结构

    公开(公告)号:US06451442B1

    公开(公告)日:2002-09-17

    申请号:US09549974

    申请日:2000-04-14

    IPC分类号: B22F300

    摘要: In one embodiment, composite constructions of the invention are in the form of a plurality of coated fibers bundled together to produce a fibrous composite construction in the form of a rod. Each fiber has a core formed from a hard phase material, that is surrounded by a shell formed from a binder phase material. In another embodiment of the invention, monolithic sheets of the hard phase material and the binder phase material are stacked and arranged to produce a swirled composite in the form of a rod. In still another embodiment of the invention, sheets formed from coated fibers are arranged to produce a swirled composite. Inserts for use in such drilling applications as roller cone rock bits and percussion hammer bits, and shear cutters for use in such drilling applications as drag bits, that are manufactured using conventional methods from these composite constructions exhibit increased fracture toughness due to the continuous binder phase around the hard phase of the composites. These binder phases increase the overall fracture toughness of the composite by blunting or deflecting the tip of a propagating crack.

    摘要翻译: 在一个实施方案中,本发明的复合结构是多个涂覆纤维的形式,其捆扎在一起以产生呈杆形式的纤维复合结构。 每个纤维具有由硬相材料形成的芯,其由由粘结相材料形成的壳包围。 在本发明的另一个实施方案中,硬质相材料和粘合剂相材料的整体片层叠并布置成产生呈棒状的旋转复合材料。 在本发明的另一个实施例中,布置由涂覆纤维形成的片材以产生旋转复合材料。 用于诸如滚子锥形岩石钻头和冲击锤钻头的钻孔应用中的插入件以及用于诸如使用这些复合结构的常规方法制造的拖曳钻头的钻孔应用中的剪切切割机显示出由于连续粘结相而导致的断裂韧性增加 围绕复合材料的硬相。 这些粘合剂相通过钝化或偏转传播裂纹的尖端来增加复合材料的总断裂韧性。

    Composite construction with oriented microstructure
    7.
    发明授权
    Composite construction with oriented microstructure 失效
    具有定向微观结构的复合结构

    公开(公告)号:US6063502A

    公开(公告)日:2000-05-16

    申请号:US903668

    申请日:1997-07-31

    摘要: In one embodiment, composite constructions of the invention are in the form of a plurality of coated fibers bundled together to produce a fibrous composite construction in the form of a rod. Each fiber has a core formed from a hard phase material, that is surrounded by a shell formed from a binder phase material. In another embodiment of the invention, monolithic sheets of the hard phase material and the binder phase material are stacked and arranged to produce a swirled composite in the form of a rod. In still another embodiment of the invention, sheets formed from coated fibers are arranged to produce a swirled composite. Inserts for use in such drilling applications as roller cone rock bits and percussion hammer bits, and shear cutters for use in such drilling applications as drag bits, that are manufactured using conventional methods from these composite constructions exhibit increased fracture toughness due to the continuous binder phase around the hard phase of the composites. These binder phases increase the overall fracture toughness of the composite by blunting or deflecting the tip of a propagating crack.

    摘要翻译: 在一个实施方案中,本发明的复合结构是多个涂覆纤维的形式,其捆扎在一起以产生呈杆形式的纤维复合结构。 每个纤维具有由硬相材料形成的芯,其由由粘结相材料形成的壳包围。 在本发明的另一个实施方案中,硬质相材料和粘合剂相材料的整体片层叠并布置成产生呈棒状的旋转复合材料。 在本发明的另一个实施例中,布置由涂覆纤维形成的片材以产生旋转复合材料。 用于诸如滚子锥形岩石钻头和冲击锤钻头的钻孔应用中的插入件以及用于诸如使用这些复合结构的常规方法制造的拖曳钻头的钻孔应用中的剪切切割机显示出由于连续粘合剂相的增加的断裂韧性 围绕复合材料的硬相。 这些粘合剂相通过钝化或偏转传播裂纹的尖端来增加复合材料的总断裂韧性。

    Boronized wear-resistant materials and methods thereof
    8.
    发明授权
    Boronized wear-resistant materials and methods thereof 有权
    硼化耐磨材料及其方法

    公开(公告)号:US06478887B1

    公开(公告)日:2002-11-12

    申请号:US09212170

    申请日:1998-12-16

    IPC分类号: B22F708

    CPC分类号: C23C8/68 C23C8/08 C23C30/005

    摘要: A boronized wear-resistant material that includes a boron-containing composition is disclosed. The boron-containing composition includes tungsten carbide and a compound represented by the formula W3MB3, where M is selected from the group consisting of iron, nickel, cobalt and alloys thereof. Particularly, a boride layer containing WC and W3CoB3 may be formed over a cemented tungsten carbide substrate by a suitable boronizing process. Additional compounds present in the boride layer include CoB, W2CoB2, and WB. A relatively thick and uniform boride layer may be obtained over a carbide substrate to form a wear-resistant body. Such a wear-resistant body may be used to manufacture cutting tools, drawing dies, inserts for an earth-boring bit, face seals, bearing surfaces, nozzles, and so on.

    摘要翻译: 公开了一种包含含硼组合物的硼化耐磨材料。 含硼组合物包括碳化钨和由式W3MB3表示的化合物,其中M选自铁,镍,钴及其合金。 特别地,含有WC和W3CoB 3的硼化物层可以通过合适的硼化工艺在粘结的碳化钨衬底上形成。 存在于硼化物层中的另外的化合物包括CoB,W2CoB2和WB。 可以在碳化物基材上获得相对厚且均匀的硼化物层,以形成耐磨体。 这种耐磨体可用于制造切削工具,拉丝模,用于钻头的刀片,表面密封件,支承表面,喷嘴等。

    Hardfacing compositions and hardfacing coatings formed by pulsed
plasma-transferred arc
    9.
    发明授权
    Hardfacing compositions and hardfacing coatings formed by pulsed plasma-transferred arc 有权
    通过脉冲等离子体转移电弧形成的表面硬化组合物和表面硬化涂层

    公开(公告)号:US06124564A

    公开(公告)日:2000-09-26

    申请号:US153130

    申请日:1998-09-15

    IPC分类号: B23K9/28 B23K10/02 B23K10/00

    摘要: A new hardfacing composition is disclosed. In addition, a pulsed plasma transferred arc method for depositing hardfacing material with a higher content of carbide and lower dilution by a substrate metal is disclosed. The disclosed method produces a hardfacing coating which has a strong metallurgical bond to the substrate metal. The method includesthe following steps: (1) establishing a transferred plasma arc between an electrode and an area of a work piece, (2) optionally preheating the work piece to at least 250.degree. F., (3) forming a plasma column of inert gas in the arc by passing an electrical current between the electrode and the work piece, (4) feeding a stream of hardfacing material in powder form into the plasma column, and (5) pulsing the current between a pre-selected high pulse current value and low pulse current value while feeding the powdered hardfacing material. In this method, the low pulse current is selected to be sufficiently high to melt at least one component of the hardfacing material. The pulse rate and the high pulse current are selected to minimize the formation of a weld pool on the metal substrate during the hardfacing process. This method has applications in hardfacing any metallic work piece which requires wear resistance or erosion resistance. This method is especially effective in hardfacing roller cone surfaces and the milled teeth of a rock bit for erosion and wear protection.

    摘要翻译: 公开了一种新的表面硬化组合物。 另外,公开了一种脉冲等离子体转移电弧法,用于沉积具有较高碳化物含量和较低稀释度的基底金属的表面硬化材料。 所公开的方法产生与基底金属具有强烈冶金结合的表面硬化涂层。 该方法包括以下步骤:(1)在电极和工件区域之间建立转移的等离子弧,(2)任选地将工件预热至至少250°F,(3)形成惰性等离子体柱 通过在电极和工件之间通过电流来使电弧中的气体,(4)将粉末形式的表面硬化材料流供给到等离子体柱中,以及(5)将电流脉冲在预先选择的高脉冲电流值 和低脉冲电流值,同时供给粉末状的表面硬化材料。 在该方法中,选择低脉冲电流足够高以熔化表面硬化材料的至少一种组分。 选择脉冲速率和高脉冲电流以在表面硬化过程中最小化金属基底上的焊池的形成。 该方法具有耐磨性或抗侵蚀性的任何金属工件的表面硬化应用。 该方法特别有效地用于加工滚子锥面和用于侵蚀和磨损保护的钻头的铣削齿。

    Metal-matrix diamond or cubic boron nitride composites
    10.
    发明授权
    Metal-matrix diamond or cubic boron nitride composites 有权
    金属基质金刚石或立方氮化硼复合材料

    公开(公告)号:US6106957A

    公开(公告)日:2000-08-22

    申请号:US266111

    申请日:1999-03-10

    申请人: Zhigang Fang

    发明人: Zhigang Fang

    摘要: A metal-matrix diamond or cubic boron nitride composite and method of making the same are disclosed. The metal-matrix/diamond composite includes grains of diamond uniformly distributed in a metal matrix. Alternatively, grains of cubic boron nitride may be used. Suitable metals for the metal matrix material may include nickel, cobalt, iron, and mixtures or alloys thereof. Other transition metals also may be used. The metal-matrix/diamond or metal-matrix/cubic boron nitride composite has high fracture toughness due to its fine microstructure. Such a metal-matrix/diamond or metal-matrix/cubic boron nitride composite is suitable for use in blanks or cutting elements for cutting tools, drill bits, dressing tools, and wear parts. It also may be used to make wire drawing dies.

    摘要翻译: 公开了金属基质金刚石或立方氮化硼复合物及其制备方法。 金属基质/金刚石复合材料包括均匀分布在金属基体中的金刚石颗粒。 或者,可以使用立方氮化硼的晶粒。 用于金属基质材料的合适的金属可以包括镍,钴,铁及其混合物或合金。 也可以使用其它过渡金属。 金属基体/金刚石或金属基体/立方氮化硼复合材料具有高的断裂韧性,由于其精细的微观结构。 这种金属基质/金刚石或金属基体/立方氮化硼复合材料适用于切割工具,钻头,修整工具和磨损部件的坯料或切割元件。 它也可用于制作拉丝模具。