CN85108173A - 最适于岩石钻孔和矿石切割的硬质合金体 - Google Patents

最适于岩石钻孔和矿石切割的硬质合金体 Download PDF

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CN85108173A
CN85108173A CN85108173.8A CN85108173A CN85108173A CN 85108173 A CN85108173 A CN 85108173A CN 85108173 A CN85108173 A CN 85108173A CN 85108173 A CN85108173 A CN 85108173A
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尤多·卡尔·雷霍德·弗斯彻
埃里克·托布约恩·哈塞尔
简·冈纳·扎马·阿克曼
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Abstract

本发明涉及最适于岩石钻孔和矿石切割的硬质合金体。通过使该合金体含有η—相硬质合金芯体，其外围是无η—相硬质合金表面层。并且使该合金体在表面内的钴含量低，而邻近η—相区的钴含量高，从而使上述硬质合金体在实用中增加了强度和工作寿期。

Description

本发明涉及最适于岩石和矿石钻孔刀具的硬质合金体。也包括用于切割沥青和混凝土的刀具。
迄今认为，适于上述用途的硬质合金应该具有双-相成份，也就是，由均匀布的WC（α-相）和钴（β-相）组成。专家认为，诸如M6-碳化物、W3CO3C（η-相）-类游离碳或中间相的存在-分别由于含碳量高或含碳量低-对于上述产品是有害的。
实际上试验已经证明了上述见解，特别是关于η-相一类的低碳相，上述低碳相分布在整个硬质合金体内或位于表面。造成上述不利后果的原因是η-相性能比较脆，也就是，从表面开始，产生的微裂纹经常起始于η-相内，硬质合金体将很容易破裂。
在冲击岩石钻孔中有两种类型的刀具，例如钎焊镶嵌件刀具和压入块刀具。要求增加硬质合金的耐磨性。通常用减少钴含量来获取上述硬质合金。然而，钴含量低的硬质合金意味着岩石钻孔镶嵌件不能钎焊，因为钎焊压力有造成破裂的危险。如今，基本上都使用压入块钻头，在此情况下，可以使用低含量钴的硬质合金。在装配压入块时，由于螺纹底孔钻孔，在钻头内压入块与钢之间接触面的上部内，经常形成空隙。当使用钻头时空隙扩大，并最终导致断裂，这可以发生在相当接近于压入块的底面处。
然而，目前意外地发现，如果在硬质合金体的中心，形成细小而均匀分布的η-相区（嵌在正常的α+β-相结构层间）的条件下，制造硬质合金，就能显著地提高强度。同时，周围表面层必须只有α+β-相。关于η-相，我们是指诸如M6C-碳化物和M12C-碳化物一类的W-C-C0-系低碳相，和具有近似化学式M4C的K-相。
必要的是表面层完全没有η-相，以便使WC-C0硬质合金保持极好的断裂强度特性。例如，在高温时，将碳加入到各处都有η-相的硬质合金体内，可以产生无η-相区。通过改变时间和温度，就可以得到所要求厚度的无η-相区。
硬质合金体具有较高的强度可以解释如下。η-相芯体比WC-C0硬质合金具有较大的刚度，这意味合金体产生的弹性形变较小，因而当钻孔合金体荷载时，在临界表面区内引起的抗拉压力较小。结论是本发明特别适合于这样的硬质合金体，其高与最大宽度之比大于0.75的压入块，最好是大于1.25。
在无η-相区的外层内，结合剂相的含量必须低，也就是低于结合剂相的名义含量。业已发现，在无η-相区内层内结合剂相的含量，也就是钴的含量应该相当高，即高于名义含量。富钴区在表面区内引起压应力，并且对强度和韧性也有有利作用。结果是刀具具有较高的耐磨性，刀具能承受较高荷载，并且也可以进行钎焊。
当进行钻孔时，压入块平磨损增加，在压入块旋转中，这将引起机械应力的增加。硬质合金与岩石之间接触面增加，对压入块的作用力很块变得极高，从而增加破裂危险。根据本发明具有η-相芯体的压入块，由于实际上增加了刚度和强度，与普通压入块比较，可以具有相当高的平耐磨性。（普通压入块需再研磨的原因，在于去除平磨损，以便降低应力-也就是断裂危险。使用本发明的压入块，基本上可以不用再研磨。）
含有η-相的硬质合金比相冈成份但无η-相的相应材料，通常具有较高的硬度。从以下实例来看将很清楚，无法用较高的硬度，也就是耐磨性增加来解释η-相芯体的加强作用。WC-C0-型相具有的硬度与η-相相当，但在所有的实例中都已显示出低劣的性能。
η-相必须具有细小的粒度，0.5-10μm，最好是1-5μm。并且均匀地分布在硬质合金体中心的正常WC-C0结构基体中。已经发现，η-相芯体的厚度，必须是硬质合金宽度的10-95%，最好是30-65%，以便能达到良好结果。
芯体至少应该含有2%（按体积）的η-相，最好至少含有10%（按体积），否则，将毫无作用，但至多为60%（按体积），最好至多为35%（按体积）。
在无η-相区，结合剂相的含量，也就是钴的含量，在表面内必须是结合剂相名义含量的0.1-0.9倍，最好是0.2-0.7倍。在邻近η-相芯体的边界处，结合剂相的含量，必须逐步增加到至少结合剂相名义含量的1.2倍，最好是1.4-2.5倍。结合剂相贫乏区的宽度，必须是无η-相区宽度的0.2-0.8倍，最好是0.3-0.7倍，宽度至少是0.4mm，最好至少是0.8mm。
以上述应用中正常使用的全部硬质合金的等级中，从含有3%（按重量）钴的等级直到含有3.5%（按重量）钴的等级，都看到性能的有利提高。对于冲击岩石钻孔最好是含有5-10%（按重量）的钴，对于旋转-破裂岩石钻孔最好是含有6-25%（按重量）的钴，以及对于矿石刀具最好含有6-13%（按重量）的钴。WC的粒度可以从1.5μm直到8μm，最好是2-5μm。
图1表示本发明压入块的纵向和横向截面。在图中，A表示含有η-相的硬质合金，B1表示无η-相和含钴量高的硬质合金，B2表示无η-相和含钴量低的硬质合金，以及C表示嵌入物质（胶木）。图2表示沿图1压入块直径方向的钴和钨的分布。业已发现，η-相中的钴量能够全部或部分地被任何金属铁或镍代替，也就是，真正的η-相能够由一种或多种呈化合物的铁族金属组成。在这种情况下，硬质合金的性能也提高到意外的程度。
在上文以及以下实例中，仅仅在α-相是WC和β-相基于一种或多种铁族金属（铁、镍或钴）的情况中，才显示出硬质合金压入块中心内η-相的有利作用。然后，当α-相中至少15%（按重量）的钨被钛、锆、铪、钒、铌、钽、铝和钼金属碳化形成物中的一种或多种代替时，初步实验给出了非常有希望的结果。
本文仅仅涉及用于冲击岩石钻孔的硬质合金压入块，但很明显，本发明也可以用于各种类型的硬质合金体，例如岩石钻孔镶嵌件、磨损部分或者受到磨损的其它部分。
实例1
用含0.30%亚化学计量含碳量（对于普通硬质合金，含碳量是5.5%而不是5.8%）的WC-6%钴粉，压制高为16mm直径为10mm的压入块。在900℃，将压入块在N2气中预烧结1小时，并在1450℃烧结样品。此后，在石墨砂箱内用Al2O3细粉稀稀地填充压入块，并在1450℃的推进式炉内，在渗碳气氛中间热处理2小时。在烧结的初始阶段，形成α+β-相结构，其中均匀分布细粒化的η-相。同时在压入块的表面内，形成极窄的仅有α+β结构的带区，因为碳开始扩散进入压入块，并使η-相转变成α+β-相。在烧结2小时以后，有足够的碳量扩散并在宽表面区内使全部的η-相转变。用这种方法制造的压入块，在烧结后具有2mm的无η-相表面区和直径为6mm的含有细密分布的η-相芯体。在表面处的钴含量为4.8%，邻近外侧的η-相为10.1%。钴含量低的部分的宽度约为1mm。
实例2
岩石：含量少量长英麻粒岩的硬磨料花岗岩，抗压强度2800-3100巴。
机械：Atlas    Copco    Cop    1038    HD。用于重型凿岩机设备的液压钻机。进刀压力85巴，旋转压力45巴，转200rpm（转数/分）。
钻头：45mm压入块钻头。双盘具有10mm外围压入块，高为16mm，每种方案做10个钻头。
硬质合金成份：94%（按重量）的WC和60%（按重量）的钴。粒度（方案1-3）＝2.5μm。
试验方案：
η-相方案1.η-相芯φ6mm，具有钴含量梯度的无η-相的表面层2mm。
2.η-相芯φ7.5mm，具有钴含量梯度的无η-相的表面层1.25mm。
普通等级3.无η-相的WC-C0结构。
4.无η-相的WC-C0结构，但粒度较细，约为1.8μm。
操作过程：
在5公尺内钻头钻7个孔，并移开以示出钻孔条件。压入块出现第一次损坏，立即从试验中取出钻头，并且记下已钻孔的米数。
方案    已钻孔的米数
平均    最大    最小    分散
1    300.8    359    270    32.9
2    310.2    361    271    39.8
3    225.8    240    195    17.2
4    220    340    103    65
最好的η-相方案显示出，比最好的普通等级工作寿期长约40%。
实例3
岩石：具有约2000巴抗压强度的磨料花岗岩
机械：Atlas    Copco    Cop    62，用于下孔岩石钻孔的气压履带式传动装置。空气压力18巴，转数40rpm。
钻头：具有φ14压入块的165mm向下孔钻头，高24mm，每个方案做5个钻头。再研磨的间距：42m。孔深：21m。
硬质合金成份按照实例2。全部方案粒度为2.5μm。
试验方案：
η-相方案1.φ7mm    η-相芯和3.5m无η-相的表面层。表面内的钴含量为3.5%，富钴部分内的钴含量为10.5%。钴含量低的部分的宽度为1.5mm。
普通标准等级2.无η-相的WC-C0。
3.无η-相的WC-C0，细粒度，1.8μm。
操作过程：
在各次再研磨时，也就是，在每个第二孔以后，颠倒钻头次序，以保证相等的钻孔条件。当每个钻头直径磨损太大，或者能够看出某些压入块损坏时，即停止钻孔。
结果：
方案    已钻孔的米数    钻孔前的硬度
平均    分数    表面层区    距表面3mm处，中心处
1    820    100    1560    1390    1520
2    570    70    1420    1420    1415
3    429    52    1520    1520    1515
实例4
不经加热将500m2的沥青介质碾碎成强磨科试样。空气温度15℃。试验三种方案。
机械：Arrow Cp 2000平路机。具有自动切割控制的液压
Figure 85108173_IMG1
轮开凿机。
切割转筒：宽度2m，直径1英寸。刀具：950mm圆周速度3.8m/s，切割深度40mm。
设备：166个凿刀均匀安装在滚筒周围，60个凿刀（每种方案有20个）为普通硬质合金（1）和（2）以及本发明的硬质合金（3）。试验方案同时成对地工作，并且沿整个宽度等距分布在滚筒周围。
试验方案
钴W/O    凿刀数    备注
1普通等级    9.5    106    正常
2普通等级    8    20    较低的钴含量以增加
耐磨性和硬度
3η-相方案    9.5    20    约1.5mm的具有钴含量
梯度的无η-相表面层。
全部压入块高为17mm，直径为16mm。
试验压入块或正常压入块一受到损坏，就立即用标准凿刀代替上述凿刀。
结果：
方案    减少高度（磨损）mm    受损坏或被代替压入块    次序
1    3.5    1.2（相对数）    Ⅲ
2    2.6    2    Ⅱ
3    2.6    0    Ⅰ
实例5
试验场所：用滚筒钻头（三个圆锥形头）对露天矿井钻孔。
机械：Bycyrus    Eris    60    R.在70rpm时，进刀力40公吨。钻孔孔深在10到17m之间。
钻孔钻头：12个1/4英寸的滚筒钻头，每种方案2个钻头。
岩石：主要是含有石英晶带的 石，抗压强度1350-1600kp/cm。
试验方案：
1.标准样品    10%钴、压入块    14mm，高21mm。
2.η-相方案    10%钴、压入块    14mm，高21mm，具有2mm无η-相表面层和φ9mm    η-相芯。表面内的钴含量梯度为7%，而在富钴部分内含量梯度为15%。贫钴部分的宽度为1.5mm。
结果：
方案    已钻孔的米数    分数    钻孔硬度m/h    分数
1    1220    100    13    100
2    1750    140    16    123
在本实例中，按照本发明的方案具有较长的工作寿期和较大的钻孔速度。
实例6
在掘进钻孔装置中，使用装有硬质合金压入块的碾压机。在7英尺的钻头上试验含有η-相芯的压入块。
天然岩石：片麻岩，抗压强度262MPa，坚硬耐磨。
钻孔装置：Ro    BBins    71R
钻孔长度：149.5m
钻孔速度：0.8m/h
在一台碾压机上装备具有15%钴和剩余物为2μmWc的标准等级的压入块（φ22mm，高30mm）。在沿直径方向位于掘进钻孔头部上面的试验碾压机上装备具有以下参数的η-相芯：
15%钴，2μmWc
无η-相表面层：3mm
η-相芯宽度：16mm
结果：
在装有标准压入块的碾压机中，30%的压入块已损坏，而在试验压入块中，仅有5%的压入块报废。
实例7：
用φ48mm镶嵌件钻头试验。
岩石：磁铁矿石十片麻岩。
钻机：Atlas    Copco    Cop    1038    HD。
凿岩机钻孔
切割镶嵌件：高21mm，宽13mm，长17mm。
硬质合金等级：11%钴，4μmWc。
方案1无η-相表面层：3mm
表面内的钴含量：8%
方案2标准品
结果
工作寿期，已钻孔米数    直径耐磨性m/mm
方案1    508    416
方案2    375    295
耐磨损表面层具有较好的抗磨性能，因为整个工作寿期增加了35%。

Claims (10)

1、最适于岩石钻孔和矿石切割的硬质合金体，它含有至少一种钴、镍或铁的结合剂相(β-相)的Wc(α-相)，其特征在于，该硬质合金体含有η-相硬质合金芯体，在其外围有无η-相的表面层。
2、按照权利要求1的硬质合金体，其特征在于，η-相的粒度为0.5～10μm，最好是1-5μm。
3、按照权利要求1的硬质合金体，其特征在于，芯体内η-相的含量为2～60%（按体积）最好是10～35%（按体积）。
4、按照权利要求1的硬质合金体，其特征在于，η-相芯体的宽度是合金体直径的10～95%，最好是40～75%。
5、按照权利要求1的硬质合金体，其特征在于，α-相内至多15%（按重量）的钨被Ti、Zr、Hf、V、Nb、Ta、Cr和Mo金属碳化形成物中的一种或多种所代替。
6、按照权利要求1的硬质合金体，其特征在于，表面层外层部分内结合剂相含量低于结合剂相的名义含量。
7、按照权利要求1的硬质合金体，其特征在于，结合剂相贫乏的最外层区宽度，为无η-相区宽度的0.2～0.8倍，最好是0.3～0.7倍。
8、按照权利要求1的硬质合金体，其特征在于，结合剂相贫乏的最外层区内结合剂相的含量，为结合剂相名义含量的0.1～0.9倍，最好是0.2～0.7倍。
9、按照权利要求1的硬质合金体，其特征在于，邻近含有η-相芯体的无η-相表面层的内层部分，其中结合剂相的含量大于名义含量。
10、按照权利要求1的硬质合金体，其特征在于，紧贴着η-相芯体的界面处，表面层内结合剂相的含量逐渐增加到结合剂相名义含量的1.2倍，最好是1.4～2.5倍。
CN85108173A 1984-11-13 1985-11-12 最适于岩石钻孔和矿石切割的硬质合金体 Expired CN1016711B (zh)

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SE8405667A SE446195B (sv) 1984-11-13 1984-11-13 Hardmetallstift for bergborrning o dyl
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SE8503804A SE446196B (sv) 1984-11-13 1985-08-14 Hardmetallkropp for bergborrning o dyl

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Families Citing this family (132)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE453202B (sv) * 1986-05-12 1988-01-18 Sandvik Ab Sinterkropp for skerande bearbetning
USRE35538E (en) * 1986-05-12 1997-06-17 Santrade Limited Sintered body for chip forming machine
SE456428B (sv) * 1986-05-12 1988-10-03 Santrade Ltd Hardmetallkropp for bergborrning med bindefasgradient och sett att framstella densamma
DE68916987T2 (de) * 1988-03-11 1994-12-01 Vermont American Corp Borbehandeltes Hartmetall.
JP2775810B2 (ja) * 1989-02-10 1998-07-16 住友電気工業株式会社 複合領域を有する超硬合金
JP2760007B2 (ja) * 1989-02-21 1998-05-28 住友電気工業株式会社 耐摩工具用超硬合金及びその製造方法
US5066553A (en) * 1989-04-12 1991-11-19 Mitsubishi Metal Corporation Surface-coated tool member of tungsten carbide based cemented carbide
US5074623A (en) * 1989-04-24 1991-12-24 Sandvik Ab Tool for cutting solid material
SE463574B (sv) * 1989-04-24 1990-12-10 Sandvik Ab Verktyg samt skaer av haardmetall foer skaerande bearbetning av fasta material
JP2762745B2 (ja) * 1989-12-27 1998-06-04 住友電気工業株式会社 被覆超硬合金及びその製造法
EP0438916B2 (en) * 1989-12-27 2000-12-20 Sumitomo Electric Industries, Ltd. Coated cemented carbides and processes for the production of same
US5154245A (en) * 1990-04-19 1992-10-13 Sandvik Ab Diamond rock tools for percussive and rotary crushing rock drilling
SE9002136D0 (sv) * 1990-06-15 1990-06-15 Sandvik Ab Cement carbide body for rock drilling, mineral cutting and highway engineering
SE9002137D0 (sv) * 1990-06-15 1990-06-15 Diamant Boart Stratabit Sa Improved tools for cutting rock drilling
SE9002135D0 (sv) * 1990-06-15 1990-06-15 Sandvik Ab Improved tools for percussive and rotary crusching rock drilling provided with a diamond layer
US5266388A (en) * 1990-09-17 1993-11-30 Kennametal Inc. Binder enriched coated cutting tool
US5250367A (en) * 1990-09-17 1993-10-05 Kennametal Inc. Binder enriched CVD and PVD coated cutting tool
SE9003251D0 (sv) * 1990-10-11 1990-10-11 Diamant Boart Stratabit Sa Improved tools for rock drilling, metal cutting and wear part applications
SE9004124D0 (sv) * 1990-12-21 1990-12-21 Sandvik Ab Haardmetallverktyg foer klippning och stansning
SE500049C2 (sv) * 1991-02-05 1994-03-28 Sandvik Ab Hårdmetallkropp med ökad seghet för mineralavverkning samt sätt att framställa denna
JPH0726173B2 (ja) * 1991-02-13 1995-03-22 東芝タンガロイ株式会社 高靭性サーメット及びその製造方法
SE500050C2 (sv) * 1991-02-18 1994-03-28 Sandvik Ab Hårdmetallkropp för slitande mineralavverkning och sätt att framställa denna
JP3191878B2 (ja) * 1991-02-21 2001-07-23 三菱マテリアル株式会社 気相合成ダイヤモンド被覆切削工具の製造法
DE69231381T2 (de) * 1991-04-10 2000-12-28 Sandvik Ab Verfahren zur herstellung zementierter karbidartikel
AU651210B2 (en) * 1991-06-04 1994-07-14 De Beers Industrial Diamond Division (Proprietary) Limited Composite diamond abrasive compact
SE505461C2 (sv) * 1991-11-13 1997-09-01 Sandvik Ab Hårdmetallkropp med ökad slitstyrka
SE469822B (sv) * 1992-02-07 1993-09-27 Sandvik Ab Hårdmetallvals för valsning av metallband och trådplattning
SE9200530D0 (sv) * 1992-02-21 1992-02-21 Sandvik Ab Haardmetall med bindefasanrikad ytzon
EP0560212B2 (en) * 1992-03-05 1999-12-15 Sumitomo Electric Industries, Limited Coated cemented carbides
CA2092932C (en) * 1992-04-17 1996-12-31 Katsuya Uchino Coated cemented carbide member and method of manufacturing the same
US6623516B2 (en) * 1992-08-13 2003-09-23 Mark A. Saab Method for changing the temperature of a selected body region
US5417475A (en) * 1992-08-19 1995-05-23 Sandvik Ab Tool comprised of a holder body and a hard insert and method of using same
US5374471A (en) * 1992-11-27 1994-12-20 Mitsubishi Materials Corporation Multilayer coated hard alloy cutting tool
US5467669A (en) * 1993-05-03 1995-11-21 American National Carbide Company Cutting tool insert
SE503038C2 (sv) * 1993-07-09 1996-03-11 Sandvik Ab Diamantbelagt skärande verktyg av hårdmetall eller keramik
SE501913C2 (sv) * 1993-10-21 1995-06-19 Sandvik Ab Skär för skärande verktyg
KR100374975B1 (ko) * 1993-10-29 2003-07-22 어낵시스 발처스 악티엔게젤샤프트 코팅된물체와그의제조방법및사용법
US5837071A (en) * 1993-11-03 1998-11-17 Sandvik Ab Diamond coated cutting tool insert and method of making same
SE507098C2 (sv) * 1994-10-12 1998-03-30 Sandvik Ab Stift av hårdmetall och bergborrkrona för slående borrning
US5679445A (en) * 1994-12-23 1997-10-21 Kennametal Inc. Composite cermet articles and method of making
US5541006A (en) * 1994-12-23 1996-07-30 Kennametal Inc. Method of making composite cermet articles and the articles
US5762843A (en) * 1994-12-23 1998-06-09 Kennametal Inc. Method of making composite cermet articles
US5594931A (en) * 1995-05-09 1997-01-14 Newcomer Products, Inc. Layered composite carbide product and method of manufacture
SE513740C2 (sv) * 1995-12-22 2000-10-30 Sandvik Ab Slitstark hårmetallkropp främst för användning vid bergborrning och mineralbrytning
SE510778C2 (sv) * 1996-07-11 1999-06-21 Sandvik Ab Belagt skär för finfräsning av grått gjutjärn
US5955186A (en) * 1996-10-15 1999-09-21 Kennametal Inc. Coated cutting insert with A C porosity substrate having non-stratified surface binder enrichment
SE510763C2 (sv) * 1996-12-20 1999-06-21 Sandvik Ab Ämne för ett borr eller en pinnfräs för metallbearbetning
US5979578A (en) 1997-06-05 1999-11-09 Smith International, Inc. Multi-layer, multi-grade multiple cutting surface PDC cutter
US6022175A (en) * 1997-08-27 2000-02-08 Kennametal Inc. Elongate rotary tool comprising a cermet having a Co-Ni-Fe binder
US5992546A (en) * 1997-08-27 1999-11-30 Kennametal Inc. Rotary earth strata penetrating tool with a cermet insert having a co-ni-fe-binder
US6170917B1 (en) * 1997-08-27 2001-01-09 Kennametal Inc. Pick-style tool with a cermet insert having a Co-Ni-Fe-binder
US6024776A (en) * 1997-08-27 2000-02-15 Kennametal Inc. Cermet having a binder with improved plasticity
US6010283A (en) * 1997-08-27 2000-01-04 Kennametal Inc. Cutting insert of a cermet having a Co-Ni-Fe-binder
JP3135877B2 (ja) 1997-11-27 2001-02-19 シャープ株式会社 Ｕｐ／Ｄｏｗｎチューナ
ZA99430B (en) 1998-01-23 1999-07-21 Smith International Hardfacing rock bit cones for erosion protection.
US6244364B1 (en) 1998-01-27 2001-06-12 Smith International, Inc. Earth-boring bit having cobalt/tungsten carbide inserts
US6217992B1 (en) 1999-05-21 2001-04-17 Kennametal Pc Inc. Coated cutting insert with a C porosity substrate having non-stratified surface binder enrichment
US6908688B1 (en) 2000-08-04 2005-06-21 Kennametal Inc. Graded composite hardmetals
SE522845C2 (sv) 2000-11-22 2004-03-09 Sandvik Ab Sätt att tillverka ett skär sammansatt av olika hårdmetallsorter
AT5837U1 (de) * 2002-04-17 2002-12-27 Plansee Tizit Ag Hartmetallbauteil mit gradiertem aufbau
US6869460B1 (en) 2003-09-22 2005-03-22 Valenite, Llc Cemented carbide article having binder gradient and process for producing the same
US7384443B2 (en) * 2003-12-12 2008-06-10 Tdy Industries, Inc. Hybrid cemented carbide composites
ES2301959T3 (es) * 2003-12-15 2008-07-01 Sandvik Intellectual Property Ab Placa de carburo cementado y metodo para su fabricacion.
JP5448300B2 (ja) * 2003-12-15 2014-03-19 サンドビック インテレクチュアル プロパティー アクティエボラーグ 採鉱及び構造物適用の超硬合金工具、及びその製造方法
US20050262774A1 (en) * 2004-04-23 2005-12-01 Eyre Ronald K Low cobalt carbide polycrystalline diamond compacts, methods for forming the same, and bit bodies incorporating the same
US9428822B2 (en) 2004-04-28 2016-08-30 Baker Hughes Incorporated Earth-boring tools and components thereof including material having hard phase in a metallic binder, and metallic binder compositions for use in forming such tools and components
US20050211475A1 (en) * 2004-04-28 2005-09-29 Mirchandani Prakash K Earth-boring bits
US7699904B2 (en) * 2004-06-14 2010-04-20 University Of Utah Research Foundation Functionally graded cemented tungsten carbide
US7513320B2 (en) * 2004-12-16 2009-04-07 Tdy Industries, Inc. Cemented carbide inserts for earth-boring bits
US8637127B2 (en) 2005-06-27 2014-01-28 Kennametal Inc. Composite article with coolant channels and tool fabrication method
US7687156B2 (en) 2005-08-18 2010-03-30 Tdy Industries, Inc. Composite cutting inserts and methods of making the same
US7997359B2 (en) * 2005-09-09 2011-08-16 Baker Hughes Incorporated Abrasive wear-resistant hardfacing materials, drill bits and drilling tools including abrasive wear-resistant hardfacing materials
US8002052B2 (en) 2005-09-09 2011-08-23 Baker Hughes Incorporated Particle-matrix composite drill bits with hardfacing
US7776256B2 (en) * 2005-11-10 2010-08-17 Baker Huges Incorporated Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies
US7597159B2 (en) * 2005-09-09 2009-10-06 Baker Hughes Incorporated Drill bits and drilling tools including abrasive wear-resistant materials
US7703555B2 (en) 2005-09-09 2010-04-27 Baker Hughes Incorporated Drilling tools having hardfacing with nickel-based matrix materials and hard particles
US7887747B2 (en) * 2005-09-12 2011-02-15 Sanalloy Industry Co., Ltd. High strength hard alloy and method of preparing the same
US7913779B2 (en) * 2005-11-10 2011-03-29 Baker Hughes Incorporated Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits
US7784567B2 (en) * 2005-11-10 2010-08-31 Baker Hughes Incorporated Earth-boring rotary drill bits including bit bodies comprising reinforced titanium or titanium-based alloy matrix materials, and methods for forming such bits
US8770324B2 (en) 2008-06-10 2014-07-08 Baker Hughes Incorporated Earth-boring tools including sinterbonded components and partially formed tools configured to be sinterbonded
US7802495B2 (en) * 2005-11-10 2010-09-28 Baker Hughes Incorporated Methods of forming earth-boring rotary drill bits
US7807099B2 (en) * 2005-11-10 2010-10-05 Baker Hughes Incorporated Method for forming earth-boring tools comprising silicon carbide composite materials
US7510032B2 (en) * 2006-03-31 2009-03-31 Kennametal Inc. Hard composite cutting insert and method of making the same
WO2007127680A1 (en) 2006-04-27 2007-11-08 Tdy Industries, Inc. Modular fixed cutter earth-boring bits, modular fixed cutter earth-boring bit bodies, and related methods
US20090058174A1 (en) * 2006-08-11 2009-03-05 Hall David R Attack Tool
WO2008027484A1 (en) * 2006-08-30 2008-03-06 Baker Hughes Incorporated Methods for applying wear-resistant material to exterior surfaces of earth-boring tools and resulting structures
MX2009003114A (es) 2006-10-25 2009-06-08 Tdy Ind Inc Articulos que tienen resistencia mejorada al agrietamiento termico.
US8272295B2 (en) * 2006-12-07 2012-09-25 Baker Hughes Incorporated Displacement members and intermediate structures for use in forming at least a portion of bit bodies of earth-boring rotary drill bits
US7775287B2 (en) 2006-12-12 2010-08-17 Baker Hughes Incorporated Methods of attaching a shank to a body of an earth-boring drilling tool, and tools formed by such methods
US7841259B2 (en) * 2006-12-27 2010-11-30 Baker Hughes Incorporated Methods of forming bit bodies
DE102007006943A1 (de) * 2007-02-13 2008-08-14 Robert Bosch Gmbh Schneidelement für einen Gesteinsbohrer und ein Verfahren zur Herstellung eines Schneidelements für einen Gesteinsbohrer
US8512882B2 (en) * 2007-02-19 2013-08-20 TDY Industries, LLC Carbide cutting insert
US20080202814A1 (en) * 2007-02-23 2008-08-28 Lyons Nicholas J Earth-boring tools and cutter assemblies having a cutting element co-sintered with a cone structure, methods of using the same
US7846551B2 (en) 2007-03-16 2010-12-07 Tdy Industries, Inc. Composite articles
FR2914206B1 (fr) * 2007-03-27 2009-09-04 Sas Varel Europ Soc Par Action Procede pour fabriquer une piece comprenant au moins un bloc en materiau dense constitue de particules dures dispersees dans une phase liante : application a des outils de coupe ou de forage.
US8858871B2 (en) * 2007-03-27 2014-10-14 Varel International Ind., L.P. Process for the production of a thermally stable polycrystalline diamond compact
US8435626B2 (en) * 2008-03-07 2013-05-07 University Of Utah Research Foundation Thermal degradation and crack resistant functionally graded cemented tungsten carbide and polycrystalline diamond
EP2653580B1 (en) 2008-06-02 2014-08-20 Kennametal Inc. Cemented carbide-metallic alloy composites
US8790439B2 (en) 2008-06-02 2014-07-29 Kennametal Inc. Composite sintered powder metal articles
US7703556B2 (en) 2008-06-04 2010-04-27 Baker Hughes Incorporated Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methods
US20090308662A1 (en) * 2008-06-11 2009-12-17 Lyons Nicholas J Method of selectively adapting material properties across a rock bit cone
US8261632B2 (en) 2008-07-09 2012-09-11 Baker Hughes Incorporated Methods of forming earth-boring drill bits
US8025112B2 (en) 2008-08-22 2011-09-27 Tdy Industries, Inc. Earth-boring bits and other parts including cemented carbide
US8322465B2 (en) 2008-08-22 2012-12-04 TDY Industries, LLC Earth-boring bit parts including hybrid cemented carbides and methods of making the same
GB0816836D0 (en) 2008-09-15 2008-10-22 Element Six Holding Gmbh Steel wear part with hard facing
GB0816837D0 (en) * 2008-09-15 2008-10-22 Element Six Holding Gmbh A Hard-Metal
FR2936817B1 (fr) * 2008-10-07 2013-07-19 Varel Europ Procece pour fabriquer une piece comprenant un bloc en materiau dense du type carbure cemente, presentant un grandient de proprietes et piece obtenue
US8163232B2 (en) * 2008-10-28 2012-04-24 University Of Utah Research Foundation Method for making functionally graded cemented tungsten carbide with engineered hard surface
US8220566B2 (en) * 2008-10-30 2012-07-17 Baker Hughes Incorporated Carburized monotungsten and ditungsten carbide eutectic particles, materials and earth-boring tools including such particles, and methods of forming such particles, materials, and tools
EP2184122A1 (en) * 2008-11-11 2010-05-12 Sandvik Intellectual Property AB Cemented carbide body and method
US8069937B2 (en) 2009-02-26 2011-12-06 Us Synthetic Corporation Polycrystalline diamond compact including a cemented tungsten carbide substrate that is substantially free of tungsten carbide grains exhibiting abnormal grain growth and applications therefor
US20120177453A1 (en) 2009-02-27 2012-07-12 Igor Yuri Konyashin Hard-metal body
US8272816B2 (en) 2009-05-12 2012-09-25 TDY Industries, LLC Composite cemented carbide rotary cutting tools and rotary cutting tool blanks
EP2221131A1 (en) * 2009-05-29 2010-08-25 Sandvik Intellectual Property AB Methods of producing a powder compact and a sintered composite body
US8201610B2 (en) 2009-06-05 2012-06-19 Baker Hughes Incorporated Methods for manufacturing downhole tools and downhole tool parts
US8308096B2 (en) 2009-07-14 2012-11-13 TDY Industries, LLC Reinforced roll and method of making same
US8440314B2 (en) * 2009-08-25 2013-05-14 TDY Industries, LLC Coated cutting tools having a platinum group metal concentration gradient and related processes
US9643236B2 (en) 2009-11-11 2017-05-09 Landis Solutions Llc Thread rolling die and method of making same
US9388482B2 (en) 2009-11-19 2016-07-12 University Of Utah Research Foundation Functionally graded cemented tungsten carbide with engineered hard surface and the method for making the same
US8936750B2 (en) * 2009-11-19 2015-01-20 University Of Utah Research Foundation Functionally graded cemented tungsten carbide with engineered hard surface and the method for making the same
CA2799911A1 (en) 2010-05-20 2011-11-24 Baker Hughes Incorporated Methods of forming at least a portion of earth-boring tools, and articles formed by such methods
RU2012155102A (ru) 2010-05-20 2014-06-27 Бейкер Хьюз Инкорпорейтед Способ формирования по меньшей мере части бурильного инструмента и изделия, сформированные таким способом
MX2012013454A (es) 2010-05-20 2013-05-01 Baker Hughes Inc Metodos para formar al menos una porcion de herramientas para perforar la tierra.
US8800848B2 (en) 2011-08-31 2014-08-12 Kennametal Inc. Methods of forming wear resistant layers on metallic surfaces
US9016406B2 (en) 2011-09-22 2015-04-28 Kennametal Inc. Cutting inserts for earth-boring bits
CN102720434B (zh) * 2012-06-29 2015-09-09 河南晶锐超硬材料有限公司 聚晶金刚石硬质合金复合片基体、复合片及其制备方法
US9242215B2 (en) * 2012-08-30 2016-01-26 Diamond Innovations, Inc. Infiltration compositions for PCD by using coated carbide substrates
US9108301B2 (en) 2013-03-15 2015-08-18 Diamond Innovations, Inc. Delayed diffusion of novel species from the back side of carbide
US10040127B2 (en) 2014-03-14 2018-08-07 Kennametal Inc. Boring bar with improved stiffness
US11162161B2 (en) 2015-12-21 2021-11-02 Sandvik Intellectual Property Ab Cutting tool
WO2018113923A1 (en) 2016-12-20 2018-06-28 Sandvik Intellectual Property Ab Cutting tool
EP4104952A1 (en) 2021-06-16 2022-12-21 Sandvik Mining and Construction Tools AB Cemented carbide insert with eta-phase core

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2121448A (en) * 1936-02-14 1938-06-21 Siemens Ag Hard metal composition
US2285900A (en) * 1941-02-05 1942-06-09 Steel Fabricators Co Supporting device for infants
GB1133995A (en) * 1964-11-21 1968-11-20 Sumitomo Electric Industries Improved point ball of ball point pens and method of manufacturing same
US3329487A (en) * 1965-02-15 1967-07-04 Firth Sterling Inc Sintered three-phase welding alloy of fe3w3c, wc, and fe
SE375474B (zh) * 1969-02-21 1975-04-21 Sandvik Ab
US4097275A (en) * 1973-07-05 1978-06-27 Erich Horvath Cemented carbide metal alloy containing auxiliary metal, and process for its manufacture
DE2433737C3 (de) * 1974-07-13 1980-05-14 Fried. Krupp Gmbh, 4300 Essen Hartmetallkörper, Verfahren zu seiner Herstellung und seine Verwendung
US4049876A (en) * 1974-10-18 1977-09-20 Sumitomo Electric Industries, Ltd. Cemented carbonitride alloys
US4035541A (en) * 1975-11-17 1977-07-12 Kennametal Inc. Sintered cemented carbide body coated with three layers
US4066451A (en) * 1976-02-17 1978-01-03 Erwin Rudy Carbide compositions for wear-resistant facings and method of fabrication
US4150195A (en) * 1976-06-18 1979-04-17 Sumitomo Electric Industries, Ltd. Surface-coated cemented carbide article and a process for the production thereof
JPS5420909A (en) * 1977-07-17 1979-02-16 Sumitomo Electric Ind Ltd Method of apparatus for sintering supper hard alloy
US4265662A (en) * 1977-12-29 1981-05-05 Sumitomo Electric Industries, Ltd. Hard alloy containing molybdenum and tungsten
US4368788A (en) * 1980-09-10 1983-01-18 Reed Rock Bit Company Metal cutting tools utilizing gradient composites
CA1174438A (en) * 1981-03-27 1984-09-18 Bela J. Nemeth Preferentially binder enriched cemented carbide bodies and method of manufacture

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100341647C (zh) * 2003-09-24 2007-10-10 自贡硬质合金有限责任公司 一种性能呈梯度变化的硬质合金拉丝模具的生产方法
CN102560169A (zh) * 2012-02-27 2012-07-11 中南大学 将硬度突变型转变为硬度渐变型梯度硬质合金的方法
CN103184382A (zh) * 2013-04-11 2013-07-03 北京工业大学 一种耐腐蚀的硬质合金及制备方法
CN103184382B (zh) * 2013-04-11 2015-11-18 北京工业大学 一种耐腐蚀的硬质合金及制备方法
CN105156038A (zh) * 2015-08-27 2015-12-16 武汉钢铁(集团)公司 牙轮钻头梯度复合材料合金齿及其加工方法
CN108085556A (zh) * 2017-12-21 2018-05-29 洛阳名力科技开发有限公司 一种WC-Fe-Ni-Co硬质合金的制备方法
CN111042745A (zh) * 2018-10-12 2020-04-21 中国石油化工股份有限公司 钻铤
CN110629095A (zh) * 2019-08-09 2019-12-31 株洲美特优硬质合金有限公司 梯度硬质合金复合棒材及其制备方法

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FI79862C (fi) 1991-12-27
BR8505668A (pt) 1986-08-12
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EP0182759A1 (en) 1986-05-28
CN1016711B (zh) 1992-05-20
PT81474B (pt) 1991-10-31
IE852817L (en) 1986-05-13
FI854321A (fi) 1986-05-14
FI854321A0 (fi) 1985-11-04
AU4973685A (en) 1986-05-22
EP0182759B2 (en) 1993-12-15
MX170150B (es) 1993-08-10
PT81474A (en) 1985-12-01
ES548783A0 (es) 1987-06-01
EP0182759B1 (en) 1989-12-13
NO165447C (no) 1991-08-20
AU588003B2 (en) 1989-09-07
FI79862B (fi) 1989-11-30
DE3574738D1 (de) 1990-01-18
US4743515A (en) 1988-05-10
NO165447B (no) 1990-11-05
ES8706093A1 (es) 1987-06-01
JPH068477B2 (ja) 1994-02-02
CA1249606A (en) 1989-01-31
NO854508L (no) 1986-05-14

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