Titanium-based carbonitride alloy with controllable wear resistance and
toughness
    3.
    发明授权
    Titanium-based carbonitride alloy with controllable wear resistance and toughness 失效
    钛基碳氮化合物,耐磨性和韧性可控

    公开(公告)号:US6129891A

    公开(公告)日:2000-10-10

    申请号:US378761

    申请日:1999-08-23

    摘要: The present invention relates to a sintered body of titanium-based carbonitride alloy comprising hard constituents containing at least tungsten in addition to titanium in a binder phase based on cobalt. There are four distinctly different microstructural components, namely: A) cores which are remnants of and have a metal composition determined by the raw material powder; B) tungsten-rich cores formed during the sintering; C) outer rims with intermediate tungsten content formed during the sintering; and D) a binder phase of a solid solution of at least titanium and tungsten in cobalt. Toughness and wear resistance are varied by adding WC, (Ti,W)C, and/or (Ti,W)(C,N) in varying amounts as raw materials.

    摘要翻译: 本发明涉及一种钛基碳氮化物合金的烧结体,其包含除基于钴的粘结相中的至少含有钨的硬质成分。 有四种明显不同的显微组织成分,即:A)由原料粉末确定的残留物并具有金属组成的芯; B)在烧结期间形成的富钨芯; C)在烧结期间形成具有中等钨含量的外缘; 和D)至少钛和钨在钴中的固溶体的粘结相。 通过以不同的量添加WC,(Ti,W)C和/或(Ti,W)(C,N)作为原料来改变韧性和耐磨性。

    Titanium-based carbonitride alloy with controllable wear resistance and
toughness
    5.
    发明授权
    Titanium-based carbonitride alloy with controllable wear resistance and toughness 失效
    钛基碳氮化合物,耐磨性和韧性可控

    公开(公告)号:US6004371A

    公开(公告)日:1999-12-21

    申请号:US875139

    申请日:1998-02-02

    摘要: The present invention relates to a sintered body of titanium-based carbonitride alloy comprising hard constituents containing at least tungsten in addition to titanium in a binder phase based on cobalt. There are four distinctly different microstructural components, namely: A) cores which are remnants of and have a metal composition determined by the raw material powder; B) tungsten-rich cores formed during the sintering; C) outer rims with intermediate tungsten content formed during the sintering; and D) a binder phase of a solid solution of at least titanium and tungsten in cobalt. Toughness and wear resistance are varied by adding WC, (Ti,W)C, and/or (Ti,W)(C,N) in varying amounts as raw materials.

    摘要翻译: PCT No.PCT / SE96 / 00052 Sec。 371日期1998年2月2日 102(e)1998年2月2日PCT 1996年1月19日PCT PCT。 WO96 / 22403 PCT出版物 日期:1996年7月25日本发明涉及一种钛基碳氮化物合金烧结体,其包含除基于钴的粘结相中的钛以外含有至少钨的硬质成分。 有四种明显不同的显微组织成分,即:A)由原料粉末确定的残留物并具有金属组成的芯; B)在烧结期间形成的富钨芯; C)在烧结期间形成具有中等钨含量的外缘; 和D)至少钛和钨在钴中的固溶体的粘结相。 通过以不同的量添加WC,(Ti,W)C和/或(Ti,W)(C,N)作为原料来改变韧性和耐磨性。

    Method for obtaining well defined edge radii on cutting tool inserts by
electropolishing technique
    6.
    发明授权
    Method for obtaining well defined edge radii on cutting tool inserts by electropolishing technique 失效
    通过电抛光技术在切削刀具刀片上获得良好定义的边缘半径的方法

    公开(公告)号:US5591320A

    公开(公告)日:1997-01-07

    申请号:US566952

    申请日:1995-12-04

    申请人: Ulf Rolander

    发明人: Ulf Rolander

    CPC分类号: C25F3/08

    摘要: There is disclosed a method for edge rounding of cutting tool inserts of cemented carbide or titanium based carbonitride alloys. An electrolytic method is used with an electrolyte which provides an even removal of both binder phase and hard constituent phases. The electrolyte comprises perchloric (HC10.sub.4) sulphuric (H.sub.2 SO.sub.4) acid, 2-15 vol %, and mixtures thereof in methanol or other suitable organic liquid. The method is easier to control than conventional mechanical methods and is particularly useful for providing very small edge radii of about 10 .mu.m which cannot be made by mechanical methods.

    摘要翻译: 公开了一种用于硬质合金或钛基碳氮化物合金的切削工具刀片的边缘倒圆的方法。 电解方法与电解质一起使用,其提供粘结相和硬组分相的均匀去除。 电解质包括高氯酸(HC104)硫酸(H 2 SO 4)酸,2-15体积%,以及它们在甲醇或其它合适的有机液体中的混合物。 该方法比常规机械方法更容易控制,并且特别可用于提供不能通过机械方法制造的约10μm的非常小的边缘半径。

    Method of making a sintered body, a powder mixture and a sintered body
    7.
    发明申请
    Method of making a sintered body, a powder mixture and a sintered body 失效
    制造烧结体,粉末混合物和烧结体的方法

    公开(公告)号:US20080127776A1

    公开(公告)日:2008-06-05

    申请号:US11984486

    申请日:2007-11-19

    IPC分类号: C22C19/00 C22C1/04

    摘要: Method of producing a sintered body comprising the steps of mixing one or more powders forming hard constituents with powders forming a binder phase comprising cobalt powder where the cobalt powder comprises cobalt having mainly a fcc-structure defined as the peak height ratio between the Co-fcc(200)/Co-hcp(101) being greater than or equal to about 3/2, as measured between the baseline and maximum peak height, measured by XRD with a 2θ/θ focusing geometry and Cu-Kα radiation. The present invention also relates to a ready-to-press powder comprising cobalt having mainly a fcc-structure and where the cobalt powder has a grain size (FSSS) of from about 0.2 to about 2.9 μm. The present invention also relates to sintered bodies made according to the method. The sintered bodied according to the present invention have reduced porosity and less crack formation.

    摘要翻译: 制备烧结体的方法包括以下步骤:将形成硬组分的一种或多种粉末与形成包含钴粉末的粘结相的粉末混合,其中钴粉末包含主要具有fcc结构的钴,其定义为Co-fcc之间的峰高比 (200)/ Co-hcp(101)大于或等于约3/2,如通过X射线衍射仪测量的基线和最大峰高之间测量的,其具有2θ/θ聚焦几何形状和Cu-Kalpha辐射。 本发明还涉及一种包含主要具有fcc结构的钴并且其中钴粉末的粒度(FSSS)为约0.2至约2.9μm的即用粉末粉末。 本发明还涉及根据该方法制造的烧结体。 根据本发明的烧结体具有减小的孔隙率和较少的裂纹形成。