CARBURIZED MONOTUNGSTEN AND DITUNGSTEN CARBIDE EUTECTIC PARTICLES, MATERIALS AND EARTH-BORING TOOLS INCLUDING SUCH PARTICLES, AND METHODS OF FORMING SUCH PARTICLES, MATERIALS, AND TOOLS
    2.
    发明申请
    CARBURIZED MONOTUNGSTEN AND DITUNGSTEN CARBIDE EUTECTIC PARTICLES, MATERIALS AND EARTH-BORING TOOLS INCLUDING SUCH PARTICLES, AND METHODS OF FORMING SUCH PARTICLES, MATERIALS, AND TOOLS 审中-公开
    渗碳的单钨和碳化钨共晶颗粒,材料和包括这种颗粒的镗土工具,以及形成这种颗粒,材料和工具的方法

    公开(公告)号:WO2010056476A3

    公开(公告)日:2010-07-29

    申请号:PCT/US2009061636

    申请日:2009-10-22

    Abstract: Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of at least partially carburized monotungsten carbide and ditungsten carbide eutectic particles dispersed throughout a matrix material. In some embodiments, the particles are at least substantially fully carburized monotungsten carbide and ditungsten carbide eutectic particles. In further embodiments, the particles are generally spherical or at least substantially spherical. Methods of forming such particles include exposing a plurality of monotungsten carbide and ditungsten carbide eutectic particles to a gas containing carbon. Methods of manufacturing such tools include providing a plurality of at least partially carburized monotungsten carbide and ditungsten carbide eutectic particles or at least substantially completely carburized monotungsten carbide and ditungsten carbide eutectic particles within a matrix material.

    Abstract translation: 钻地下地层的钻地工具包括颗粒基质复合材料,该颗粒基质复合材料包含多个分散在整个基体材料中的至少部分渗碳的碳化钨和碳化钨共晶颗粒。 在一些实施例中,颗粒至少基本上完全渗碳碳化一碳化钨和碳化二钨共晶颗粒。 在进一步的实施方案中,颗粒通常为球形或至少基本球形。 形成这种颗粒的方法包括将多个碳化钨和碳化钨共晶颗粒暴露于含碳气体。 制造这种工具的方法包括在基体材料内提供多个至少部分渗碳的碳化钨和碳化钨共晶颗粒或至少基本完全渗碳的碳化钨和碳化钨共晶颗粒。

    METHOD OF PRODUCING A SINTER-HARDENED COMPONENT
    4.
    发明申请
    METHOD OF PRODUCING A SINTER-HARDENED COMPONENT 审中-公开
    生产烧结组件的方法

    公开(公告)号:WO2009030290A1

    公开(公告)日:2009-03-12

    申请号:PCT/EP2008/004270

    申请日:2008-05-29

    Abstract: The invention describes a method of producing a sinter-hardened component from a metallic powder containing chromium which is pre-alloyed in particular, comprising the steps of compacting the powder to form a green compact and then sintering the green compact in a reducing sintering atmosphere at a sintering temperature in excess of 1100° C. A gas containing carbon is added to the sintering atmosphere.

    Abstract translation: 本发明描述了一种从含有预先合金化的铬的金属粉末制备烧结硬化组分的方法,包括以下步骤:将粉末压实成生坯,然后在还原烧结气氛中烧结生坯 烧结温度超过1100℃。将含有碳的气体加入到烧结气氛中。

    CEMENTED CARBIDE INSERT WITH BINDER PHASE ENRICHED SURFACE ZONE
    6.
    发明申请
    CEMENTED CARBIDE INSERT WITH BINDER PHASE ENRICHED SURFACE ZONE 审中-公开
    具有粘结相增强表面区域的碳化硅嵌段

    公开(公告)号:WO00003048A1

    公开(公告)日:2000-01-20

    申请号:PCT/SE1999/001220

    申请日:1999-07-05

    Abstract: The present invention relates to a coated cemented carbide insert with a binder phase enriched surface zone. The WC-grains have an average grain size in the range 1.0-3.5 mu m, preferably 1.3-3.0 mu m and the number of WC-grains larger than 2 times the average grain size is less than 10 grains/cm measured on a representative polished section 0.5 cm large, preferably less than 5 grains/cm , and the number larger than 3 times the average grain size is less than 5 grains/cm , preferably less than 3 grains/cm . The cemented carbide is made by powder metallurgical methods and is in particular characterized in that the cooling rate, CR, from the sintring temperature, ST, exhibits the relationship 10

    Abstract translation: 本发明涉及具有粘结相富集表面区域的涂覆硬质合金刀片。 WC颗粒的平均晶粒尺寸在1.0-3.5μm,优选1.3-3.0μm的范围内,并且大于平均晶粒尺寸的2倍的WC颗粒数小于10个谷物/ cm 2 在0.5cm 2以上,优选小于5个/ cm 2的代表性抛光部上,平均粒径的3倍以上的数小于5个/ cm 2,优选为3个以下 /厘米<2>。 硬质合金通过粉末冶金方法制成,其特征在于从冷却温度(ST)的冷却速率(CR)表现出10

    A PROCESS AND PLANT FOR PRODUCING ATOMIZED METAL POWDER, METAL POWDER AND THE USE OF THE METAL POWDER
    7.
    发明申请
    A PROCESS AND PLANT FOR PRODUCING ATOMIZED METAL POWDER, METAL POWDER AND THE USE OF THE METAL POWDER 审中-公开
    用于生产金属粉末,金属粉末和使用金属粉末的方法和设备

    公开(公告)号:WO1997041986A1

    公开(公告)日:1997-11-13

    申请号:PCT/SE1997000656

    申请日:1997-04-18

    CPC classification number: B22F9/082 B22F2009/088 B22F2201/30

    Abstract: The present invention relates to a process for manufacturing atomized metal powder in an atomization plant comprising a casting box, a reactor vessel, a powder container and sedimentation equipment. The production process takes place with controlled thermal balance. The invention also relates to an atomization plant, atomized metal powder and the use of the metal powder as coolant in the manufacture of steel.

    Abstract translation: 本发明涉及一种雾化装置中的雾化金属粉末的制造方法,其包括浇铸箱,反应容器,粉末容器和沉淀设备。 生产过程发生在受控热平衡。 本发明还涉及雾化装置,雾化金属粉末以及在制造钢中使用金属粉末作为冷却剂。

    A PRE-ALLOYED IRON- BASED POWDER, AN IRON-BASED POWDER MIXTURE CONTAINING THE PRE-ALLOYED IRON-BASED POWDER AND A METHOD FOR MAKING PRESSED AND SINTERED COMPONENTS FROM THE IRON-BASED POWDER MIXTURE
    9.
    发明申请
    A PRE-ALLOYED IRON- BASED POWDER, AN IRON-BASED POWDER MIXTURE CONTAINING THE PRE-ALLOYED IRON-BASED POWDER AND A METHOD FOR MAKING PRESSED AND SINTERED COMPONENTS FROM THE IRON-BASED POWDER MIXTURE 审中-公开
    一种基于铁合金的粉末,含有基于铁的粉末的基于铁的粉末混合物以及用于从基于铁的粉末混合物制备压制和烧结组分的方法

    公开(公告)号:WO2016041977A1

    公开(公告)日:2016-03-24

    申请号:PCT/EP2015/071115

    申请日:2015-09-15

    Inventor: BERGMAN, Ola

    Abstract: The present invention provides a low cost pre-alloyed iron based powder which has high compressibility, capable of rendering a compacted and sintered component high green density, (GD), and high sintered density, (SD). Also, a method or process for producing components, especially gears, including compaction of powder mixture containing the pre-alloyed iron-based powder, sintering of the compacted component, Low Pressure carburizing, (LPC), High Pressure Gas Quenching, (HPGQ), and tempering, is provided. In one embodiment, the process includes high temperature sintering. Other aspects of the present invention include a powder mixture containing the pre-alloyed iron based powder and components produced by the new process from the powder mixture. Such carburized components exhibit a hard surface combined with a softer and tougher core, necessary properties for e.g. automotive gears subjected to harsh environment.

    Abstract translation: 本发明提供一种低成本的预合金铁基粉末,其具有高压缩性,能够使压实和烧结组分高生坯密度(GD)和高烧结密度(SD)。 另外,用于生产组分,特别是齿轮的方法或方法,包括压实含有预合金铁基粉末的粉末混合物,压实组分的烧结,低压渗碳(LPC),高压气体淬火(HPGQ) ,并提供回火。 在一个实施方案中,该方法包括高温烧结。 本发明的其它方面包括含有预合金铁基粉末和由粉末混合物通过新方法制备的组分的粉末混合物。 这种渗碳组分表现出与更软和更坚硬的芯组合的硬表面, 汽车齿轮经受恶劣环境。

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