Pick-style tool with a cermet insert having a Co-Ni-Fe-binder
    2.
    发明授权
    Pick-style tool with a cermet insert having a Co-Ni-Fe-binder 失效
    具有Co-Ni-Fe粘合剂的金属陶瓷插入件的拾取式工具

    公开(公告)号:US06170917B2

    公开(公告)日:2001-01-09

    申请号:US08918990

    申请日:1997-08-27

    IPC分类号: E21C35183

    摘要: A pick-style tool that includes an elongate tool body with an axially forward end and an axially rearward end, and a hard insert affixed to the tool body at the axially forward end is disclosed. The hard insert comprises a WC-cermet comprising tungsten carbide and about 5 wt. % to 27 wt. % Co—Ni—Fe-binder. The Co—Ni—Fe-binder is unique in that even when subjected to plastic deformation, the binder substantially maintains its face centered cubic (fcc) crystal structure and avoids stress and/or strain induced transformations.

    摘要翻译: 公开了一种拾取式工具,其包括具有轴向前端和轴向后端的细长工具主体,以及在轴向前端处固定到工具主体上的硬质插入件。 硬质插入物包括WC-金属陶瓷,其包含碳化钨和约5wt。 %至27wt。 %Co-Ni-Fe-粘合剂。 Co-Ni-Fe粘合剂是独特的,因为即使经受塑性变形,粘合剂基本保持其面心立方(fcc)晶体结构,并避免应力和/或应变诱导的转变。

    Cemented carbide body containing zirconium and niobium and method of making the same
    5.
    发明授权
    Cemented carbide body containing zirconium and niobium and method of making the same 有权
    含有锆和铌的硬质合金体及其制造方法

    公开(公告)号:US07309466B2

    公开(公告)日:2007-12-18

    申请号:US11395981

    申请日:2006-03-31

    IPC分类号: B22F3/12 B22F3/15 C22C29/02

    摘要: A sintered cemented carbide body (e.g., a cutting tool) and a method of making the same. The sintered cemented carbide body includes tungsten carbide, a binder phase of at least one metal of the iron group or an alloy thereof, and one or more solid solution phases. Each one of the solid solution phases has at least one of the carbides and carbonitrides of a combination of zirconium, niobium, and tungsten. The method includes the steps of providing a powder mixture that contains tungsten carbide, a binder metal powder comprising at least one metal of the iron group or an alloy thereof, and at least one of the carbides and carbonitrides of both zirconium and niobium including a powder of the carbides or carbonitrides of zirconium and niobium, forming a green compact of said powder mixture, and vacuum sintering or sinter-HIP said green compact at a temperature of from 1400 to 1560° C.

    摘要翻译: 烧结硬质合金体(例如切削工具)及其制造方法。 烧结硬质合金体包括碳化钨,至少一种铁基金属或其合金的粘结相和一个或多个固溶相。 固溶体相中的每一个具有锆,铌和钨的组合的碳化物和碳氮化物中的至少一种。 该方法包括以下步骤:提供包含碳化钨的粉末混合物,包含至少一种铁基金属或其合金的粘合剂金属粉末,以及锆和铌中的至少一种碳化物和碳氮化物,包括粉末 的锆和铌的碳化物或碳氮化物,形成所述粉末混合物的生坯,并在1400至1560℃的温度下真空烧结或烧结HIP所述生坯。

    Cemented carbide body containing zirconium and niobium and method of making the same
    9.
    发明授权
    Cemented carbide body containing zirconium and niobium and method of making the same 有权
    含有锆和铌的硬质合金体及其制造方法

    公开(公告)号:US08394169B2

    公开(公告)日:2013-03-12

    申请号:US11395980

    申请日:2006-03-31

    IPC分类号: C22C29/02

    摘要: A sintered cemented carbide body (e.g., a cutting tool) and a method of making the same. The sintered cemented carbide body includes tungsten carbide, a binder phase of at least one metal of the iron group or an alloy thereof, and one or more solid solution phases. Each one of the solid solution phases has at least one of the carbides and carbonitrides of a combination of zirconium, niobium, and tungsten. The method includes the steps of providing a powder mixture that contains tungsten carbide, a binder metal powder comprising at least one metal of the iron group or an alloy thereof, and at least one of the carbides and carbonitrides of both zirconium and niobium including a powder of the carbides or carbonitrides of zirconium and niobium, forming a green compact of said powder mixture, and vacuum sintering or sinter-HIP said green compact at a temperature of from 1400 to 1560° C.

    摘要翻译: 烧结硬质合金体(例如切削工具)及其制造方法。 烧结硬质合金体包括碳化钨,至少一种铁基金属或其合金的粘结相和一个或多个固溶相。 固溶体相中的每一个具有锆,铌和钨的组合的碳化物和碳氮化物中的至少一种。 该方法包括以下步骤:提供包含碳化钨的粉末混合物,包含至少一种铁基金属或其合金的粘合剂金属粉末,以及锆和铌中的至少一种碳化物和碳氮化物,包括粉末 的锆和铌的碳化物或碳氮化物,形成所述粉末混合物的生坯,并在1400至1560℃的温度下真空烧结或烧结HIP所述生坯。

    Fine grained sintered cemented carbide, process for manufacturing and use thereof
    10.
    发明授权
    Fine grained sintered cemented carbide, process for manufacturing and use thereof 有权
    细晶粒烧结硬质合金,其制造及使用方法

    公开(公告)号:US07179319B2

    公开(公告)日:2007-02-20

    申请号:US10759478

    申请日:2004-01-16

    IPC分类号: C22C29/08

    摘要: The invention proposes a fine grained sintered cemented carbide containing chromium and based on WC and a binder based on Co or CoNiFe, and having at least one additional phase comprising at least one carbide or mixed carbide of tantalum. For improving the high-temperature properties while simultaneously maintaining a good trade-off between hardness and bending strength, it is proposed that the sintered cemented carbide contains approximately 0.3 to 4% Ta, as related to the total mass of the sintered cemented carbide, that the WC has a grain size of between 0.1 and 1.3 μm, that the binder phase contains the metals W, Cr and Ta, dissolved in solid solution, and that the at least one additional phase comprises a TaC phase visible by optical microscopy. The invention further relates to a powder-metallurgical process for manufacturing the sintered cemented carbide and to the use of the sintered cemented carbide for manufacturing cutting tools having improved high-temperature properties.

    摘要翻译: 本发明提出了一种包含铬并基于WC的细晶粒烧结硬质合金和基于Co或CoNiFe的粘合剂,并且具有至少一个包含至少一种碳化物或钽的混合碳化物的附加相。 为了提高高温性能同时保持硬度和弯曲强度之间的良好折衷,提出烧结硬质合金含有约0.3至4%的Ta,与烧结硬质合金的总质量相关, WC的粒径为0.1〜1.3μm,粘结相含有溶解在固溶体中的金属W,Cr和Ta,并且至少一个附加相包括通过光学显微镜可见的TaC相。 本发明还涉及用于制造烧结硬质合金的粉末冶金方法,以及使用烧结硬质合金制造具有改进的高温性能的切削工具。