公开(公告)号：US20210332453A1

公开(公告)日：2021-10-28

申请号：US16614247

申请日：2018-05-25

Applicant: WALZENGIESSEREI COSWIG GMBH

Inventor： Sven BAUMGART ,  Stefan NELLE ,  Tino NOACK ,  Thomas FÜSSEL

IPC: C21D9/28 ,  C21D1/09 ,  C21D9/22 ,  F16C3/02 ,  B21B3/02

Abstract: The invention relates to a surface-hardened, rotationally symmetrical workpiece, to a hardening method and to a hardening apparatus. The proposed hardening apparatus comprises a machine frame on which two coaxially arranged rotary bearings designed to support a rotationally symmetrical workpiece are arranged, at least one rotary bearing being operatively connected to a drive device to generate rotation of the workpiece; and at lease one laser apparatus for generating focused, high-energy radiation is arranged on said rotary bearing, said laser apparatus being movable in the axial direction, and the radiation being directed toward the workpiece.

公开(公告)号：US10597744B2

公开(公告)日：2020-03-24

申请号：US15571117

申请日：2016-05-18

Applicant: ATLAS COPCO SECOROC AB

Inventor： Tomas Rostvall ,  Pär Sundqvist ,  Thomas Andersson

IPC: C21D9/22 ,  B24B31/108 ,  B24C1/08 ,  B24B31/02 ,  B08B3/04 ,  B08B7/02 ,  B24B31/03 ,  B24B31/023 ,  C22C1/10 ,  C22C29/08 ,  C22C29/14 ,  C22F1/10 ,  C22C26/00 ,  C21D7/04

Abstract: A method, performed by a centrifuge, for treating toughness and hardness of drill bit buttons is provided. The centrifuge comprises a chamber formed by a stationary side wall and a bottom which is rotatable around a rotation axis, the bottom comprising one or more protrusions which at least partly extends between the rotation axis and the side wall, the side wall comprising at least six pushing elements arranged around a periphery of the side wall. The method comprises rotating, by rotation of the bottom with the protrusions, the drill bit buttons around the rotation axis, pushing, by the pushing elements, the drill bit buttons from the side wall during the rotation of the bottom, collectively forming the drill bit buttons into a torus shape at the bottom of the chamber for inducing collisions between the drill bit buttons, thereby treating the toughness and hardness of the drill bit.

公开(公告)号：US10184161B2

公开(公告)日：2019-01-22

申请号：US15321298

申请日：2015-06-22

Applicant: B & J ROCKET SALES AG

Inventor： Bent Toft Andersen

IPC: B23D71/02 ,  B23D1/18 ,  C21D9/22 ,  C21D1/42 ,  C21D1/18 ,  C21D11/00

Abstract: A method for producing a tire rasp blade for mounting on a rasp hub is described. The tire rasp blade has a blade body and blade teeth. A main part of the tire rasp blade is austenitized by heating the main part to an austenitization temperature. The tire rasp blade is then tempered. The austenitizing process is performed by induction heating the tire rasp blade until the austenitization temperature is reached. The austenitizing process is followed by a quenching process, wherein the quenching is started before austenitization temperature is reached, whereby the quenching process briefly overlaps the induction heating. A tire rasp blade is also described.

公开(公告)号：US20180171427A1

公开(公告)日：2018-06-21

申请号：US15571098

申请日：2015-12-18

Applicant: Halliburton Energy Services, Inc.

Inventor： Venkkateesh Parthasarathi Padmarekha ,  Grant O. Cook, III ,  Daniel Brendan Voglewede

IPC: C21D9/22 ,  E21B10/54 ,  E21B10/42 ,  C21D1/06 ,  C21D1/18

Abstract: The disclosure provides downhole tools with shaft regions that are hardened by a compressive residual stress created when an allotropic material in a precursor region transforms from a first allotrope to a second allotrope in response to heat, while continuing to occupy the same physical space. The disclosure further provides methods of forming such downhole tools.

公开(公告)号：US20180147636A1

公开(公告)日：2018-05-31

申请号：US15579626

申请日：2016-06-21

Applicant: HITACHI METALS, LTD.

Inventor： Shiho FUKUMOTO ,  Taishiroh FUKUMARU

IPC: B23B27/14 ,  B23C5/16 ,  C21D9/22 ,  C21D8/06 ,  C21D6/00 ,  C21D1/18 ,  C21D6/02 ,  C22C38/22 ,  C22C38/24 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/06 ,  C22C38/30 ,  C21D1/26

CPC classification number: B23B27/148 ,  B23B27/14 ,  B23B51/00 ,  B23C5/16 ,  C21D1/18 ,  C21D1/26 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D6/02 ,  C21D8/00 ,  C21D8/06 ,  C21D8/065 ,  C21D9/22 ,  C21D9/24 ,  C21D2211/001 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/30 ,  C22C38/36

Abstract: Provided are: a method for producing a high-speed tool steel material capable of increasing carbides in the structure of a high-speed tool steel product; a method for producing a high-speed tool steel product; and a high-speed tool steel product. The method for producing a high-speed tool steel material is provided with: a casting step for casting molten steel to obtain a steel ingot; a blooming step for heating the steel ingot obtained in said casting step to a temperature higher than 1120° C. and thereafter hot-working same to obtain an intermediate material; and a finishing step for heating the intermediate material obtained in the blooming step to a temperature of 900-1120° C. and thereafter hot-working same to obtain the high-speed tool steel material. Further, said method for producing a high-speed tool steel material is provided with an annealing step for annealing the high-speed tool steel material obtained in said finishing step. The present invention is also: a method for producing a high-speed tool steel product, wherein quenching and annealing is performed on the high-speed tool steel material obtained in the production method above; and a high-speed tool steel product.

公开(公告)号：US20160333523A1

公开(公告)日：2016-11-17

申请号：US15112008

申请日：2015-01-17

Applicant: VOESTALPINE PRECISION STRIP AB

Inventor： Chris MILLWARD

IPC: D21G3/04 ,  C22C38/22 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  B22F3/24 ,  C21D9/52 ,  C21D8/02 ,  C21D1/18 ,  C21D1/56 ,  B22F9/08 ,  B22F3/15 ,  C22C38/24 ,  C21D9/22

CPC classification number: D21G3/04 ,  B22F3/15 ,  B22F3/24 ,  B22F9/082 ,  B22F2003/248 ,  B22F2005/001 ,  B22F2009/0824 ,  B31F1/145 ,  C21D1/18 ,  C21D1/25 ,  C21D1/56 ,  C21D6/002 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0247 ,  C21D9/18 ,  C21D9/22 ,  C21D9/52 ,  C21D9/58 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24

Abstract: The invention relates to a creping blade for the detachment of a travelling paper web from a dryer cylinder, said blade having a working edge to be placed against the cylinder, wherein the creping blade has a tensile strength of 1800-2500 N/mm2 and a hardness of 57-66 HRC in the hardened and tempered condition and wherein the blade is made from a steel, which comprises the following main components (in wt. %): C: 1.2-1.5; Si: 0.1-0.8; Mn: 0.1-0.7; Cr: 4.2-5.2; Mo: 3.0-4.0; V: 3.2-4.2; N: 0.01-0.15; balance Fe and impurities.

Abstract translation: 本发明涉及一种用于将移动的纸幅从烘缸中分离的起皱刀片，所述刀片具有一工作边缘以抵靠该缸体放置，其中该起皱刀片具有1800-2500N / mm2的拉伸强度和一 在硬化和回火状态下的硬度为57-66HRC，并且其中所述刀片由钢制成，所述钢包括以下主要组分（重量％）：C：1.2-1.5; Si：0.1-0.8; Mn：0.1-0.7; Cr：4.2-5.2; Mo：3.0-4.0; V：3.2-4.2; N：0.01-0.15; 平衡铁和杂质。

公开(公告)号：US09199338B2

公开(公告)日：2015-12-01

申请号：US14352146

申请日：2011-11-02

Applicant: Liehua Zhang ,  Quansheng Song

Inventor： Liehua Zhang ,  Quansheng Song

IPC: B23K35/32 ,  B23K35/22 ,  B23K35/02 ,  C21D9/22 ,  C21D1/06

CPC classification number: B23K35/228 ,  B23K35/0266 ,  B23K35/327 ,  C21D1/06 ,  C21D9/22

Abstract: A tube welding rod resistant to high stress abrasion is used for hard facing of an abrasion-resistant layer, and comprises a welded tube and a filler filling the welded tube. The filler comprises, in weight percentages, 65-90% of spherical sintered tungsten carbide particles, 5-30% of spherical cast tungsten carbide particles, 0-15% of mechanically ground cast tungsten carbide particles, 2-6% of alloy power, and 0.2-1% of an organic binder. The used of the mixed spherical sintered tungsten carbide particles and the spherical cast tungsten carbide particles improves the abrasion resistance performance of the hard-faced layer in the high stress working condition, improves the overall abrasion resistance of the abrasion-resistant hard-faced layer formed by the welding rod, and is suitable for surface hardening of bits.

Abstract translation: 用于高耐磨性的管焊条用于耐磨层的硬面，并且包括焊管和填充焊管的填料。 填料包括重量百分数为65-90％的球形烧结碳化钨颗粒，5-30％的球形铸造碳化钨颗粒，0-15％的机械研磨铸造碳化钨颗粒，2-6％的合金功率， 和0.2-1％的有机粘合剂。 使用混合球形烧结碳化钨颗粒和球形铸造碳化钨颗粒改善了在高应力工作条件下硬面层的耐磨性能，提高了形成的耐磨硬面层的总体耐磨性 通过焊条，适用于钻头的表面硬化。

公开(公告)号：US08968495B2

公开(公告)日：2015-03-03

申请号：US12370906

申请日：2009-02-13

Applicant: Christon L. Shepard ,  Shrinidhi Chandrasekharan ,  Ronald R. LaParre ,  David L. Turpin ,  Alan L. Shaffer

Inventor： Christon L. Shepard ,  Shrinidhi Chandrasekharan ,  Ronald R. LaParre ,  David L. Turpin ,  Alan L. Shaffer

IPC: C21D7/13 ,  B21D37/01 ,  B21J5/08 ,  B21K5/20 ,  B26F1/14 ,  C21D1/18 ,  C21D1/19 ,  C21D1/20 ,  C21D6/00 ,  C21D9/22 ,  B22F5/00 ,  B26F1/44

CPC classification number: B21D37/01 ,  B21J5/08 ,  B21K5/20 ,  B22F2005/002 ,  B22F2998/00 ,  B26F1/14 ,  B26F1/44 ,  B26F2001/4436 ,  B32B15/011 ,  C21D1/185 ,  C21D1/19 ,  C21D1/20 ,  C21D6/002 ,  C21D7/13 ,  C21D9/22 ,  C21D2201/05 ,  C21D2211/001 ,  C21D2211/008 ,  Y10T83/929 ,  Y10T83/9428 ,  Y10T428/12063 ,  Y10T428/12965 ,  B22F3/162 ,  B22F3/17

Abstract: A method of thermo-mechanically processing a preform composed of tool steel and a tool to modify a workpiece. The preform has a region containing austenite. The method comprises establishing the region at a process temperature between a martensitic start temperature and a stable austenitic temperature. While at the process temperature, the region is deformed to change an outer dimension and to modify the microstructure to a depth of 1 millimeter or more. The tool comprises a member composed of tool steel. The member includes a first region that extends from the outer surface to a depth of greater than 1 millimeter and a second region. The first region includes a plurality of grains having an average misorientation angle greater than about 34°, an average grain size that is at least 10% smaller than the second region, and has a different grain orientation than the second region.

Abstract translation: 一种热机械加工由工具钢制成的预制件和工具以修改工件的方法。 预制件具有包含奥氏体的区域。 该方法包括在马氏体开始温度和稳定的奥氏体温度之间的过程温度下建立该区域。 而在工艺温度下，该区域变形以改变外部尺寸并将微结构改变到1毫米或更深的深度。 该工具包括由工具钢构成的构件。 该构件包括从外表面延伸到大于1毫米深度的第一区域和第二区域。 第一区域包括具有大于约34°的平均取向角的多个晶粒，平均晶粒尺寸比第二区域小至少10％，并且具有与第二区域不同的晶粒取向。

公开(公告)号：US6146476A

公开(公告)日：2000-11-14

申请号：US247470

申请日：1999-02-08

Applicant: Ronald E. Boyer

Inventor： Ronald E. Boyer

IPC: B23B51/00 ,  B23C5/00 ,  B23D77/00 ,  B23K26/34 ,  B23K35/30 ,  B23K35/32 ,  B23P15/28 ,  B23P15/32 ,  C21D9/22 ,  C23C24/10 ,  B05D5/00

CPC classification number: C23C24/106 ,  B23B51/00 ,  B23C5/00 ,  B23D77/00 ,  B23K26/32 ,  B23K26/34 ,  B23K35/0244 ,  B23K35/228 ,  B23K35/30 ,  B23K35/32 ,  B23P15/28 ,  B23P15/32 ,  C23C24/103 ,  B23K2201/20 ,  B23K2203/50 ,  B23K35/3093 ,  B23K35/327 ,  C21D9/22 ,  Y10T407/1946 ,  Y10T407/26 ,  Y10T408/78 ,  Y10T408/81 ,  Y10T408/85843 ,  Y10T408/909

Abstract: A cutting tool has a tool body and cutters metallurgically bonded to the tool body. The cutters are formed from laser to the tool body, with each cutter having a cutting edge formed thereon.

Abstract translation: 切削工具具有与工具主体冶金结合的工具主体和切割器。 切割器由激光形成在工具主体上，每个切割器具有形成在其上的切割刃。

公开(公告)号：US06051079A

公开(公告)日：2000-04-18

申请号：US045639

申请日：1998-03-23

Applicant: Jan Magnus Andersson ,  Nathan Anderson

Inventor： Jan Magnus Andersson ,  Nathan Anderson

IPC: E21B10/46 ,  E21C35/18 ,  E21C35/183 ,  G06F3/12 ,  C21D9/22

CPC classification number: G06F3/1293 ,  E21C35/183 ,  E21C2035/1816

Abstract: A wear resistant, diamond enhanced cutting tool for excavating is disclosed. The cutting tool includes a cutting insert having a diamond coated cutting tip brazed to the cutting insert. The cutting tool is formed by brazing the insert to a tool body with a braze alloy by heating the insert and tool body to a temperature at which the braze alloy melts. The insert and tool body are then cooled to solidify the braze alloy and quenched to cause a martensitic transformation. Finally, the diamond enhanced tip is brazed to the insert while the temperature of the tool body is maintained below a temperature at which the tool body would soften. According to this method, the cutting tool is formed without creating a tempered zone of reduced hardness.

Abstract translation: 公开了一种用于挖掘的耐磨钻石增强切削工具。 该切削工具包括具有钎焊到切削刀片的金刚石涂层切削刀片的切削刀片。 切割工具通过将刀片和刀具体加热至钎焊合金熔化的温度，将刀片钎焊到具有钎焊合金的刀具本体上而形成。 然后将刀片和刀具体冷却以固化钎焊合金并淬火以引起马氏体转变。 最后，金刚石增强尖端钎焊到刀片上，同时刀具体的温度保持在刀具体软化温度以下。 根据该方法，形成切削工具，而不产生硬度降低的回火区域。