公开(公告)号：WO2016184956A1

公开(公告)日：2016-11-24

申请号：PCT/EP2016/061238

申请日：2016-05-19

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： ÅKERMAN, Jan ,  SEGER, Urban ,  ARVANITIDIS, Ioannis

IPC: B22F7/08 ,  C22C29/08 ,  E21B10/00

CPC classification number: B22F7/08 ,  B22F2005/001 ,  B22F2999/00 ,  C22C1/051 ,  C22C1/055 ,  C22C1/056 ,  C22C1/1094 ,  C22C29/005 ,  C22C29/08 ,  E21C35/19 ,  B22F2207/03 ,  B22F2201/02

Abstract: A tool (1) for cutting, drilling or crushing of solid material, wherein -said tool (1) comprises a cemented carbide body (2) attached to a steel holder (3) by a braze joint located between a base surface (8) of the cemented carbide body (2) and the steel holder (3), -said cemented carbide body (2) comprises a hard phase mainly comprised by tungsten carbide, WC, and a binder consisting of cobalt, wherein the cobalt content of the cemented carbide body (2) is equal to or lower than about 5.5 wt%, and wherein, - the cemented carbide body (2) presents a cobalt content gradient therein wherein the cobalt content increases towards said base surface (8) and is at least 4.5 wt% at said base surface (8), - the ratio cobalt content at the base surface to cobalt content of the cemented carbide is ≥ 1.09. A method for producing the tool is also presented.

Abstract translation: 1.一种用于切割，钻孔或破碎固体材料的工具（1），其中所述工具（1）包括通过位于基面（8）之间的钎焊接头连接到钢支架（3）的硬质合金体（2） 的硬质合金体（2）和钢支架（3），硬质合金体（2）包括主要由碳化钨，WC和由钴组成的粘合剂的硬质相，其中胶结的钴含量 硬质合金体（2）等于或低于约5.5重量％，其中， - 硬质合金体（2）中含有钴含量梯度，其中钴含量朝向所述基面（8）增加并且至少为4.5 （8）时，基底表面的钴含量与硬质合金的钴含量的比值≥1.09。 还提出了一种生产该工具的方法。

公开(公告)号：WO2010056191A1

公开(公告)日：2010-05-20

申请号：PCT/SE2009/051285

申请日：2009-11-11

Applicant: SANDVIK INTELLECTUAL PROPERTY AB ,  ARVANITIDIS, Ioannis

Inventor： ARVANITIDIS, Ioannis

IPC: B22F7/06 ,  C22C29/08 ,  C22C1/05

CPC classification number: C22C29/08 ,  B22F7/06 ,  B22F2999/00 ,  C22C1/051 ,  Y10T428/12014 ,  Y10T428/24942 ,  Y10T428/24983 ,  Y10T428/252 ,  B22F2207/01 ,  B22F2207/13 ,  B22F3/22

Abstract: The present invention relates to a method of producing a cemented carbide body comprising providing: (1 ) a grain refiner compound comprising a grain refiner and carbon and/or nitrogen, and, (2) a grain growth promoter, on at least one portion of the surface of a compact of a WC-based starting material comprising one or more hard- phase components and a binder, and then sintering the compact, the invention also relates to a cemented carbide body comprising a WC-based hard phase and a binder phase, wherein at least one part of an intermediate surface zone has a lower average binder content than a part further into the body, and at least one part of an upper surface zone has in average a larger average WC grain size than the intermediate surface zone. The cemented carbide body can be used as a cutting tool insert for metal machining, an insert for a mining tool, or a coldforming tool.

Abstract translation: 本发明涉及一种生产硬质合金体的方法，包括提供：（1）包含晶粒细化剂和碳和/或氮的晶粒细化剂化合物，和（2）晶粒生长促进剂，在至少一部分 包含一种或多种硬相组分和粘合剂的WC基原料的压块的表面，然后烧结该压块，本发明还涉及一种硬质合金体，其包含基于WC的硬质相和粘结相 其中中间表面区域的至少一部分具有比进一步进入体内的部分更低的平均粘合剂含量，并且上表面区域的至少一部分平均具有比中间表面区域更大的平均WC晶粒尺寸。 硬质合金体可用作金属加工的切削刀片，用于采矿工具的刀片或冷成型工具。

公开(公告)号：WO2018060125A1

公开(公告)日：2018-04-05

申请号：PCT/EP2017/074193

申请日：2017-09-25

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： MÅRTENSSON, Malin ,  ARVANITIDIS, Ioannis ,  TURBA, Krystof

IPC: C04B35/56 ,  C22C29/08

Abstract: A rock drill insert made of cemented carbide that comprises hard constituents of tungsten carbide (WC) in a binder phase comprising Co, wherein the cemented 5 carbide comprises 4-18 mass % Co and balance WC and unavoidable impurities, characterized in that said cemented carbide also comprises Cr in such an amount that the mass ratio Cr/Co is within the range of 0.04-0.19, and, the difference between the hardness at 0.3 mm depth at any point of the surface of the rock drill insert and the hardness of the bulk of the rock drill insert is at least 40 HV3. 10

Abstract translation: 一种由硬质合金制成的凿岩机刀片，其在包含Co的粘结相中包含硬质碳化物（WC）的硬质成分，其中该硬质碳化物包含4-18质量％的Co和余量的WC并且不可避免地 杂质，其特征在于所述硬质合金还含有Cr，其质量比Cr / Co在0.04-0.19的范围内，并且在所述硬质合金表面的任何点处的0.3mm深度处的硬度之间的差值 凿岩机刀片和凿岩机刀片本体的硬度至少为40HV3。 10

公开(公告)号：EP3519371A1

公开(公告)日：2019-08-07

申请号：EP17777852.9

申请日：2017-09-25

Applicant: Sandvik Intellectual Property AB

Inventor： MÅRTENSSON, Malin ,  ARVANITIDIS, Ioannis ,  TURBA, Krystof

IPC: C04B35/56 ,  C22C29/08

公开(公告)号：EP2355948B1

公开(公告)日：2018-05-16

申请号：EP09753234.5

申请日：2009-11-11

Applicant: Sandvik Intellectual Property AB

Inventor： ARVANITIDIS, Ioannis

IPC: B22F7/06 ,  C22C29/08 ,  C22C1/05

CPC classification number: C22C29/08 ,  B22F7/06 ,  B22F2999/00 ,  C22C1/051 ,  Y10T428/12014 ,  Y10T428/24942 ,  Y10T428/24983 ,  Y10T428/252 ,  B22F2207/01 ,  B22F2207/13 ,  B22F3/22

Abstract: The present invention relates to a method of producing a cemented carbide body comprising providing: (1) a grain refiner compound comprising a grain refiner and carbon and/or nitrogen, and, (2) a grain growth promoter, on at least one portion of the surface of a compact of a WC-based starting material comprising one or more hard-phase components and a binder, and then sintering the compact. the invention also relates to a cemented carbide body comprising a WC-based hard phase and a binder phase, wherein at least one part of an intermediate surface zone has a lower average binder content than a part further into the body, and at least one part of an upper surface zone has in average a larger average WC grain size than the intermediate surface zone. The cemented carbide body can be used as a cutting tool insert for metal machining, an insert for a mining tool, or a coldforming tool.

公开(公告)号：EP3808867A1

公开(公告)日：2021-04-21

申请号：EP20206630.4

申请日：2017-09-25

Applicant: Sandvik Intellectual Property AB

Inventor： TURBA, Krystof ,  ARVANITIDIS, Ioannis ,  MÅRTENSSON, Malin

IPC: C22C29/08 ,  B22F5/00

Abstract: A rock drill insert made of cemented carbide that comprises hard constituents of tungsten carbide (WC) in a binder phase comprising Co, wherein the cemented carbide comprises 4-18 mass % Co and balance WC and unavoidable impurities, characterized in that said cemented carbide also comprises Cr in such an amount that the mass ratio Cr/Co is within the range of 0.04-0.19, and, the difference between the hardness at 0.3 mm depth at any point of the surface of the rock drill insert and the hardness of the bulk of the rock drill insert is at least 40 HV3.

公开(公告)号：EP3297782A1

公开(公告)日：2018-03-28

申请号：EP16725458.0

申请日：2016-05-19

Applicant: Sandvik Intellectual Property AB

Inventor： ÅKERMAN, Jan ,  SEGER, Urban ,  ARVANITIDIS, Ioannis

IPC: B22F7/08 ,  C22C29/08 ,  E21B10/00

Abstract: A tool for cutting, drilling or crushing of solid material, wherein the tool includes a cemented carbide body attached to a steel holder by a braze joint located between a base surface of the cemented carbide body and the steel holder. The cemented carbide body has a hard phase mainly of tungsten carbide, WC, and a binder consisting of cobalt, wherein the cobalt content of the cemented carbide body is equal to or lower than about 5.5 wt %. The cemented carbide body has a cobalt content gradient therein wherein the cobalt content increases towards the base surface and is at least 4.5 wt % at the base surface. The ratio of the cobalt content at the base surface to the cobalt content of the cemented carbide is ≥1.09. A method for producing the tool is also presented.

公开(公告)号：EP2355948A1

公开(公告)日：2011-08-17

申请号：EP09753234.5

申请日：2009-11-11

Applicant: Sandvik Intellectual Property Ab

Inventor： ARVANITIDIS, Ioannis

IPC: B22F7/06 ,  C22C29/08 ,  C22C1/05

CPC classification number: C22C29/08 ,  B22F7/06 ,  B22F2999/00 ,  C22C1/051 ,  Y10T428/12014 ,  Y10T428/24942 ,  Y10T428/24983 ,  Y10T428/252 ,  B22F2207/01 ,  B22F2207/13 ,  B22F3/22

Abstract: The present invention relates to a method of producing a cemented carbide body comprising providing: (1) a grain refiner compound comprising a grain refiner and carbon and/or nitrogen, and, (2) a grain growth promoter, on at least one portion of the surface of a compact of a WC-based starting material comprising one or more hard-phase components and a binder, and then sintering the compact. the invention also relates to a cemented carbide body comprising a WC-based hard phase and a binder phase, wherein at least one part of an intermediate surface zone has a lower average binder content than a part further into the body, and at least one part of an upper surface zone has in average a larger average WC grain size than the intermediate surface zone. The cemented carbide body can be used as a cutting tool insert for metal machining, an insert for a mining tool, or a coldforming tool.