FUNCTIONALLY GRADED CEMENTED TUNGSTEN CARBIDE WITH ENGINEERED HARD SURFACE AND THE METHOD FOR MAKING THE SAME
    2.
    发明申请
    FUNCTIONALLY GRADED CEMENTED TUNGSTEN CARBIDE WITH ENGINEERED HARD SURFACE AND THE METHOD FOR MAKING THE SAME 有权
    具有工程硬表面的功能分级硬质合金碳化物及其制造方法

    公开(公告)号:US20110116963A1

    公开(公告)日:2011-05-19

    申请号:US12621629

    申请日:2009-11-19

    IPC分类号: B32B15/16 B22F3/12 B22F3/24

    摘要: A method of preparing a functionally graded cemented tungsten carbide material via heat treating a sintered cemented tungsten carbide is disclosed and described. The heat treating process comprises at least a step that heats the sintered material to the multi-phase non-equilibrium temperature range in which multiple phases including solid tungsten carbide, liquid metal binder, and solid metal binder coexist. Additionally, the material, after the heat treating process comprises a surface layer with lower metal binder content than the nominal value of metal binder content of the bulk of the material.

    摘要翻译: 公开并描述了通过热处理烧结的粘结碳化钨制备功能梯度的碳化钨材料的方法。 热处理方法至少包括将烧结材料加热到多相非平衡温度范围的步骤,其中包括固体碳化钨,液态金属粘合剂和固体金属粘合剂的多相共存。 此外,在热处理工艺之后的材料包括具有低于材料主体的金属粘结剂含量的标称值的较低金属粘合剂含量的表面层。

    Functionally graded cemented tungsten carbide with engineered hard surface and the method for making the same
    5.
    发明授权
    Functionally graded cemented tungsten carbide with engineered hard surface and the method for making the same 有权
    功能分级的硬质合金碳化钨与工程硬表面及其制造方法

    公开(公告)号:US09388482B2

    公开(公告)日:2016-07-12

    申请号:US13449062

    申请日:2012-04-17

    摘要: A functionally graded cemented tungsten carbide material produced via heat treating a sintered cemented tungsten carbide is disclosed and described. The heat treating process comprises at least a step that heats the sintered material to the multi-phase temperature range in which multiple phases including solid tungsten carbide, liquid metal binder, and solid metal binder coexist. Additionally, the material, after the heat treating process comprises a surface layer with lower metal binder content than the nominal value of metal binder content of the bulk of the material. The material is used to make tools for rock drilling, machining of metal alloys, and machining of non-metallic materials. The material can also be used to make engineered wear parts that are used in mechanical systems and applications where wear resistance is required or desired.

    摘要翻译: 公开和描述了通过热处理烧结的粘结碳化钨产生的功能梯度的硬质合金碳化物材料。 热处理方法至少包括将烧结材料加热到多相温度范围的步骤,其中包括固体碳化钨,液态金属粘合剂和固体金属粘合剂的多相共存。 此外,在热处理工艺之后的材料包括具有低于材料主体的金属粘结剂含量的标称值的较低金属粘合剂含量的表面层。 该材料用于制造岩石钻孔,金属合金加工和非金属材料加工的工具。 该材料还可用于制造用于需要或需要耐磨性的机械系统和应用中的工程磨损部件。

    Functionally graded cemented tungsten carbide with engineered hard surface and the method for making the same
    7.
    发明授权
    Functionally graded cemented tungsten carbide with engineered hard surface and the method for making the same 有权
    功能分级的硬质合金碳化钨与工程硬表面及其制造方法

    公开(公告)号:US08936750B2

    公开(公告)日:2015-01-20

    申请号:US12621629

    申请日:2009-11-19

    IPC分类号: C22C1/05

    摘要: A method of preparing a functionally graded cemented tungsten carbide material via heat treating a sintered cemented tungsten carbide is disclosed and described. The heat treating process comprises at least a step that heats the sintered material to the multi-phase non-equilibrium temperature range in which multiple phases including solid tungsten carbide, liquid metal binder, and solid metal binder coexist. Additionally, the material, after the heat treating process comprises a surface layer with lower metal binder content than the nominal value of metal binder content of the bulk of the material.

    摘要翻译: 公开并描述了通过热处理烧结的粘结碳化钨制备功能梯度的碳化钨材料的方法。 热处理方法至少包括将烧结材料加热到多相非平衡温度范围的步骤,其中包括固体碳化钨,液态金属粘合剂和固体金属粘合剂的多相共存。 此外,在热处理工艺之后的材料包括具有低于材料主体的金属粘结剂含量的标称值的较低金属粘合剂含量的表面层。

    Tool for coldforming operations
    9.
    发明授权
    Tool for coldforming operations 失效
    冷成型工具

    公开(公告)号:US06464748B2

    公开(公告)日:2002-10-15

    申请号:US09962589

    申请日:2001-09-26

    IPC分类号: C22C2908

    摘要: The present invention relates to cemented carbide tools for coldforming and drawing operations. The cemented carbide comprises WC with an average grain of

    摘要翻译: 本发明涉及用于冷成形和拉拔操作的硬质合金工具。 硬质合金包括平均颗粒小于1um的WC和0.5-4wt%的由Co和Ni组成的粘结相,<0.5wt%的Mo和<1wt%的晶粒生长抑制剂V和/或Cr。 重量比Co:(Co + Ni)为0.25-0.75,结构含有1-5体积%的精细分布的等级为5微米的等级相。

    METHODS OF MAKING SINTERED ARTICLES
    10.
    发明申请
    METHODS OF MAKING SINTERED ARTICLES 审中-公开
    制造烧结物品的方法

    公开(公告)号:US20160375493A1

    公开(公告)日:2016-12-29

    申请号:US14591630

    申请日:2015-01-07

    申请人: Kennametal Inc.

    摘要: Methods of making sintered articles from powder metal carbide compositions by additive manufacturing techniques are described herein. Sintered carbide articles fabricated by such additive manufacturing techniques, in some embodiments, exhibit densities equaling articles formed according to conventional techniques employed in powder metallurgy. For example, a method of manufacturing an article comprises providing sintered cemented carbide powder comprising a hard particle phase including tungsten carbide and a metallic binder phase and forming the sintered cemented carbide powder into a green article by one or more additive manufacturing techniques. The green article is sintered to provide a sintered article having density greater than 90% theoretical full density, wherein the green article has a density less than 50% theoretical full density prior to sintering.

    摘要翻译: 本文描述了通过添加剂制造技术制造来自粉末金属碳化物组合物的烧结制品的方法。 在一些实施例中,通过这种添加剂制造技术制造的烧结碳化物制品的密度显示出与根据粉末冶金技术中使用的常规技术形成的制品相等的密度。 例如,制造制品的方法包括提供包括硬质颗粒相包括碳化钨和金属粘合剂相的烧结硬质合金粉末,并通过一种或多种添加剂制造技术将烧结的硬质合金粉末形成为绿色制品。 将绿色制品烧结以提供密度大于理论全密度的90%的烧结制品,其中在烧结之前,绿色制品具有小于理论全密度的50%的密度。