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公开(公告)号：US09725794B2
公开(公告)日：2017-08-08
申请号：US14573893
申请日：2014-12-17
Applicant: Kennametal Inc.
Inventor： Pankaj B. Trivedi , Pankaj Kumar Mehrotra
CPC classification number: C22C29/08 , B22F2005/001 , C22C1/051 , C22C29/005 , C22C29/04
Abstract: In one aspect sintered cemented carbide articles are described herein which, in some embodiments, exhibit enhanced resistance to wear and thermal fatigue. Further, sintered cemented carbide articles described herein can tolerate variations in carbon content without formation of undesirable phases, including eta phase and/or free graphite (C-type porosity). Such tolerance can facilitate manufacturing and use of carbide grades where carbon content is not strictly controlled. A sintered cemented carbide body described herein comprises a hard particle phase including tungsten carbide and a metallic binder phase comprising at least one of cobalt, nickel and iron and one or more alloying additives, wherein the sintered cemented carbide has a magnetic saturation (MS) ranging from 0% to 73% and no eta phase.
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公开(公告)号：US09475945B2
公开(公告)日：2016-10-25
申请号：US14045152
申请日：2013-10-03
Applicant: Kennametal Inc.
Inventor： Pankaj B. Trivedi , Pankaj K. Mehrotra , Neal S. Myers
IPC: C09D191/06 , C09D5/03 , C08K3/08 , C08K3/14 , C08K5/17 , C08K5/06 , B02C17/18 , B02C23/18 , B22F9/04 , B22F3/22 , C22C29/02 , C22C29/16 , C22C29/08
CPC classification number: C04B35/71 , B02C17/18 , B02C17/186 , B02C23/18 , B22F1/0003 , B22F3/16 , B22F3/22 , B22F7/008 , B22F9/04 , B22F2009/043 , B22F2301/15 , B22F2302/10 , B22F2302/45 , B22F2998/10 , C04B35/5626 , C04B35/6263 , C04B35/6264 , C04B35/63488 , C04B2235/3847 , C04B2235/405 , C04B2235/94 , C08K3/08 , C08K3/14 , C08K5/06 , C08K5/17 , C08K2003/0843 , C08L57/00 , C08L2205/03 , C09D5/033 , C09D191/06 , C22C29/02 , C22C29/08 , C22C29/16 , B22F1/0059
Abstract: An aqueous slurry that is useful upon being spray dried for the formation of a powder of hard material. The aqueous slurry includes starting powder components of the hard material. The slurry further includes an oxidation inhibitor, a surfactant in an amount between about 0.05 weight percent and about 0.30 weight percent of the weight of the starting powder components of the hard material, a binder, a defoamer and water in an between about 15 weight percent and about 30 weight percent of the weight of the weight of the starting powder components of the hard material. The aqueous slurry has a percent solids value that is between about 70 percent and about 85 percent.
Abstract translation: 用于喷雾干燥以形成硬质材料粉末的水性浆料。 含水浆料包括硬质材料的起始粉末组分。 该浆料还包括氧化抑制剂，表面活性剂，其量为硬质材料的起始粉末组分，粘合剂，消泡剂和水的约0.05重量％至约0.30重量％，其含量为约15重量％ 和约30重量％的硬质材料的起始粉末组分的重量的重量。 含水浆料的固含量百分比在约70％至约85％之间。
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公开(公告)号：US11958115B2
公开(公告)日：2024-04-16
申请号：US17185240
申请日：2021-02-25
Applicant: Kennametal Inc.
Inventor： Pankaj K. Mehrotra , Pankaj B. Trivedi , Kent P. Mizgalski
IPC: B22F3/16 , B22F1/148 , B22F3/02 , B22F3/10 , B22F9/02 , B22F9/04 , C04B35/56 , C22C29/08 , B22F9/00
CPC classification number: B22F3/02 , B22F1/148 , B22F3/10 , B22F3/16 , B22F9/026 , B22F9/04 , C04B35/5626 , C22C29/08 , B22F2009/001 , B22F2009/043 , B22F2201/20 , B22F2301/15 , B22F2302/10 , B22F2998/10 , B22F2999/00 , C04B2235/404 , C04B2235/405 , B22F2999/00 , B22F9/04 , B22F2009/001 , C22C29/08 , B22F2998/10 , C22C29/08 , B22F9/026 , B22F3/02 , B22F3/10 , B22F2999/00 , B22F3/10 , B22F2201/20
Abstract: In one aspect, grade powder compositions are described herein comprising electrochemically processed sintered carbide scrap. In some embodiments, a grade powder composition comprises a reclaimed powder component in an amount of at least 75 weight percent of the grade powder composition, wherein the reclaimed carbide component comprises electrochemically processed sintered carbide scrap.
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公开(公告)号：US20210178476A1
公开(公告)日：2021-06-17
申请号：US17185240
申请日：2021-02-25
Applicant: Kennametal Inc.
Inventor： Pankaj K. Mehrotra , Pankaj B. Trivedi , Kent P. Mizgalski
Abstract: In one aspect, grade powder compositions are described herein comprising electrochemically processed sintered carbide scrap. In some embodiments, a grade powder composition comprises a reclaimed powder component in an amount of at least 75 weight percent of the grade powder composition, wherein the reclaimed carbide component comprises electrochemically processed sintered carbide scrap.
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Patent Agency Ranking
公开(公告)号：US10415119B2
公开(公告)日：2019-09-17
申请号：US15645475
申请日：2017-07-10
Applicant: Kennametal Inc.
Inventor： Pankaj B. Trivedi , Pankaj Kumar Mehrotra
Abstract: In one aspect sintered cemented carbide articles are described herein which, in some embodiments, exhibit enhanced resistance to wear and thermal fatigue. Further, sintered cemented carbide articles described herein can tolerate variations in carbon content without formation of undesirable phases, including eta phase and/or free graphite (C-type porosity). Such tolerance can facilitate manufacturing and use of carbide grades where carbon content is not strictly controlled. A sintered cemented carbide body described herein comprises a hard particle phase including tungsten carbide and a metallic binder phase comprising at least one of cobalt, nickel and iron and one or more alloying additives, wherein the sintered cemented carbide has a magnetic saturation (MS) ranging from 0% to 73% and no eta phase.
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公开(公告)号：US20240207929A1
公开(公告)日：2024-06-27
申请号：US18595965
申请日：2024-03-05
Applicant: Kennametal Inc.
Inventor： Pankaj K. Mehrotra , Pankaj B. Trivedi , Kent P. Mizgalski
IPC: B22F3/02 , B22F1/148 , B22F3/10 , B22F3/16 , B22F9/00 , B22F9/02 , B22F9/04 , C04B35/56 , C22C29/08
CPC classification number: B22F3/02 , B22F1/148 , B22F3/10 , B22F3/16 , B22F9/026 , B22F9/04 , C04B35/5626 , C22C29/08 , B22F2009/001 , B22F2009/043 , B22F2201/20 , B22F2301/15 , B22F2302/10 , B22F2998/10 , B22F2999/00 , C04B2235/404 , C04B2235/405
Abstract: In one aspect, grade powder compositions are described herein comprising electrochemically processed sintered carbide scrap. In some embodiments, a grade powder composition comprises a reclaimed powder component in an amount of at least 75 weight percent of the grade powder composition, wherein the reclaimed carbide component comprises electrochemically processed sintered carbide scrap.
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公开(公告)号：US10940538B2
公开(公告)日：2021-03-09
申请号：US15675078
申请日：2017-08-11
Applicant: Kennametal Inc.
Inventor： Pankaj K. Mehrotra , Pankaj B. Trivedi , Kent P. Mizgalski
IPC: C22C29/08 , B22F3/16 , B22F9/04 , C04B35/56 , B22F3/02 , B22F3/10 , B22F1/00 , B22F9/02 , B22F9/00
Abstract: In one aspect, grade powder compositions are described herein comprising electrochemically processed sintered carbide scrap. In some embodiments, a grade powder composition comprises a reclaimed powder component in an amount of at least 75 weight percent of the grade powder composition, wherein the reclaimed carbide component comprises electrochemically processed sintered carbide scrap.
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公开(公告)号：US09796633B2
公开(公告)日：2017-10-24
申请号：US15267804
申请日：2016-09-16
Applicant: KENNAMETAL INC.
Inventor： Pankaj B. Trivedi , Pankaj K. Mehrotra , Neal S. Myers
IPC: C04B35/56 , C08K3/14 , C04B35/71 , C09D5/03 , C09D191/06 , C08K3/08 , C08K5/17 , C08K5/06 , B02C17/18 , B02C23/18 , B22F9/04 , B22F3/22 , C22C29/02 , C22C29/16 , B22F1/00 , B22F3/16 , B22F7/00 , C04B35/626 , C04B35/634 , C08L57/00 , C22C29/08
CPC classification number: C04B35/71 , B02C17/18 , B02C17/186 , B02C23/18 , B22F1/0003 , B22F3/16 , B22F3/22 , B22F7/008 , B22F9/04 , B22F2009/043 , B22F2301/15 , B22F2302/10 , B22F2302/45 , B22F2998/10 , C04B35/5626 , C04B35/6263 , C04B35/6264 , C04B35/63488 , C04B2235/3847 , C04B2235/405 , C04B2235/94 , C08K3/08 , C08K3/14 , C08K5/06 , C08K5/17 , C08K2003/0843 , C08L57/00 , C08L2205/03 , C09D5/033 , C09D191/06 , C22C29/02 , C22C29/08 , C22C29/16 , B22F1/0059
Abstract: An aqueous slurry that is useful upon being spray dried for the formation of a powder of hard material. The aqueous slurry includes starting powder components of the hard material. The slurry further includes an oxidation inhibitor, a surfactant in an amount between about 0.05 weight percent and about 0.30 weight percent of the weight of the starting powder components of the hard material, a binder, a defoamer and water in an between about 15 weight percent and about 30 weight percent of the weight of the weight of the starting powder components of the hard material. The aqueous slurry has a percent solids value that is between about 70 percent and about 85 percent.
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公开(公告)号：US20150096467A1
公开(公告)日：2015-04-09
申请号：US14045152
申请日：2013-10-03
Applicant: Kennametal Inc.
Inventor： Pankaj B. Trivedi , Pankaj K. Mehrotra , Neal S. Myers
CPC classification number: C04B35/71 , B02C17/18 , B02C17/186 , B02C23/18 , B22F1/0003 , B22F3/16 , B22F3/22 , B22F7/008 , B22F9/04 , B22F2009/043 , B22F2301/15 , B22F2302/10 , B22F2302/45 , B22F2998/10 , C04B35/5626 , C04B35/6263 , C04B35/6264 , C04B35/63488 , C04B2235/3847 , C04B2235/405 , C04B2235/94 , C08K3/08 , C08K3/14 , C08K5/06 , C08K5/17 , C08K2003/0843 , C08L57/00 , C08L2205/03 , C09D5/033 , C09D191/06 , C22C29/02 , C22C29/08 , C22C29/16 , B22F1/0059
Abstract: An aqueous slurry that is useful upon being spray dried for the formation of a powder of hard material. The aqueous slurry includes starting powder components of the hard material. The slurry further includes an oxidation inhibitor, a surfactant in an amount between about 0.05 weight percent and about 0.30 weight percent of the weight of the starting powder components of the hard material, a binder, a defoamer and water in an between about 15 weight percent and about 30 weight percent of the weight of the weight of the starting powder components of the hard material. The aqueous slurry has a percent solids value that is between about 70 percent and about 85 percent.
Abstract translation: 用于喷雾干燥以形成硬质材料粉末的水性浆料。 含水浆料包括硬质材料的起始粉末组分。 该浆料还包括氧化抑制剂，表面活性剂，其量为硬质材料的起始粉末组分，粘合剂，消泡剂和水的约0.05重量％至约0.30重量％，其含量为约15重量％ 和约30重量％的硬质材料的起始粉末组分的重量的重量。 含水浆料的固含量百分比在约70％至约85％之间。
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