公开(公告)号：US09499888B2

公开(公告)日：2016-11-22

申请号：US14458918

申请日：2014-08-13

申请人： Kennametal Inc.

发明人： Terry W. Kirk ,  Hongbo Tian ,  Xin Deng ,  Debangshu Banerjee ,  Qingjun Zheng

IPC分类号： C22C29/06 ,  C22C29/10 ,  C22C29/08

CPC分类号： C22C29/10 ,  B22F2998/00 ,  B22F2998/10 ,  C22C29/06 ,  C22C29/067 ,  C22C29/08 ,  B22F3/02 ,  B22F9/04 ,  B22F3/10 ,  B22F2304/15

摘要： Carbide pellets including relatively small amounts of metallic binder are produced by steps of pressing, comminuting, shaping and sintering. The carbide pellets may be used as wear resistant hard facing materials that are applied to various types of tools. The carbide pellets provide improved mechanical properties such as hardness and abrasiveness while maintaining required levels of toughness and strength.

摘要翻译： 通过压制，粉碎，成型和烧结的步骤制造包含相对少量金属粘合剂的硬质合金丸。 碳化物颗粒可以用作耐磨硬面材料，其应用于各种类型的工具。 碳化物颗粒提供改善的机械性能，例如硬度和磨损性，同时保持所需的韧性和强度水平。

公开(公告)号：US20210285109A1

公开(公告)日：2021-09-16

申请号：US16817578

申请日：2020-03-12

申请人： Kennametal Inc.

发明人： Joern Kohlscheen ,  Debangshu Banerjee

IPC分类号： C23C28/00 ,  C23C14/08 ,  C23C14/06

摘要： A coated body has a substrate and a coating applied to the substrate by physical vapor deposition. The coating includes a main layer adjacent to the substrate and a multilayer adjacent to the main layer. The main layer includes a nitride of at least Al and Ti. The multilayer includes alternating layers of an oxide or oxynitride layer and a nitride layer. The oxide or oxynitride layer includes an oxide or oxynitride of at least one of Zr, Hf, and Cr. The nitride layer includes a nitride of at least one of Zr, Hf, and Cr. A metallic interlayer is between the main layer and the multilayer or between the oxide or oxynitride layer and the nitride layer of the multilayer.

公开(公告)号：US10968512B2

公开(公告)日：2021-04-06

申请号：US16015618

申请日：2018-06-22

申请人： Kennametal Inc.

发明人： Debangshu Banerjee ,  Rodrigo Cooper

IPC分类号： C23C16/34 ,  C23C16/40 ,  C04B35/581 ,  C04B35/622 ,  C04B35/48 ,  C04B35/119 ,  C04B41/00 ,  C23C28/04 ,  C04B35/488

摘要： In one aspect, articles are described comprising wear resistant coatings employing composite architectures including refractory layers of varying compositions and phases. Briefly, a coated article comprises a substrate and a coating deposited by chemical vapor deposition (CVD) adhered to the substrate, the coating comprising an inner refractory layer comprising M1-xAlxN wherein x≥0.7 and M is titanium, chromium or zirconium and an outer zirconia layer or outer multiphase refractory layer comprising an alumina phase and an oxide phase comprising at least one Group IVB metal, wherein the M1-xAlxN has less than 15 weight percent hexagonal phase.

公开(公告)号：US20150343667A1

公开(公告)日：2015-12-03

申请号：US14291578

申请日：2014-05-30

申请人： Kennametal Inc.

发明人： J. Denny Robertson ,  Debangshu Banerjee ,  Hugo Serrano ,  Yujiao Zou

IPC分类号： B29B11/02 ,  C22C29/08 ,  B02C18/18 ,  C22C29/06

CPC分类号： B29B11/02 ,  B22F2998/10 ,  B22F2999/00 ,  B26D2001/002 ,  B26D2001/0033 ,  B29B9/06 ,  B29B9/065 ,  C22C29/06 ,  C22C29/067 ,  C22C29/08 ,  C22C29/10 ,  C22C1/1084 ,  B22F1/0059 ,  B22F3/02 ,  B22F3/1021 ,  B22F3/04 ,  B22F3/15 ,  B22F3/225 ,  B22F3/20 ,  B22F2009/042 ,  B22F2009/043 ,  B22F2201/013 ,  B22F2201/20

摘要： Pelletizing die and knife assemblies that may be used for pelletization of plastic extrudate are disclosed. The knife assemblies may include an extrusion die and a rotary knife hub assembly. The rotary knife hub assembly may comprise a hub having multiple pelletizer cutting knives mounted thereon. Each knife may include a cutting blade insert mounted on a body of the knife. The cutting blade inserts may comprise a composite material having a continuous metal matrix with hard metal carbide particles dispersed therein. The composite material has relatively high hardness and good wear resistance properties, but may have a hardness less than the hardness of the pelletizing die surface in order to reduce wear of the die face.

摘要翻译： 公开了可用于塑料挤出物造粒的造粒模和刀组件。 刀组件可以包括挤出模头和旋转刀毂组件。 旋转刀毂组件可以包括具有安装在其上的多个造粒机切割刀的轮毂。 每个刀可以包括安装在刀体上的切割刀片插入件。 切割刀片插入件可以包括具有分散在其中的硬质金属碳化物颗粒的连续金属基体的复合材料。 复合材料具有相对较高的硬度和良好的耐磨性能，但是其硬度可以小于造粒模具表面的硬度，以减少模具表面的磨损。

公开(公告)号：US20140345423A1

公开(公告)日：2014-11-27

申请号：US14458918

申请日：2014-08-13

申请人： Kennametal Inc.

发明人： Terry W. Kirk ,  Hongbo Tian ,  Xin Deng ,  Debangshu Banerjee ,  Qingjun Zheng

IPC分类号： C22C29/10 ,  C22C29/08 ,  C22C29/06

CPC分类号： C22C29/10 ,  B22F2998/00 ,  B22F2998/10 ,  C22C29/06 ,  C22C29/067 ,  C22C29/08 ,  B22F3/02 ,  B22F9/04 ,  B22F3/10 ,  B22F2304/15

摘要： Carbide pellets including relatively small amounts of metallic binder are produced by steps of pressing, comminuting, shaping and sintering. The carbide pellets may be used as wear resistant hard facing materials that are applied to various types of tools. The carbide pellets provide improved mechanical properties such as hardness and abrasiveness while maintaining required levels of toughness and strength.

摘要翻译： 通过压制，粉碎，成型和烧结的步骤制造包含相对少量金属粘合剂的硬质合金丸。 碳化物颗粒可以用作耐磨硬面材料，其应用于各种类型的工具。 碳化物颗粒提供改善的机械性能，例如硬度和磨损性，同时保持所需的韧性和强度水平。