公开(公告)号：US20090152017A1

公开(公告)日：2009-06-18

申请号：US11958314

申请日：2007-12-17

申请人： Yuelin SHEN ,  Youhe ZHANG ,  Guodong ZHAN

发明人： Yuelin SHEN ,  Youhe ZHANG ,  Guodong ZHAN

IPC分类号： E21B10/46

CPC分类号： B24D3/10 ,  B22F7/06 ,  B22F2005/002 ,  B22F2999/00 ,  B24D18/0009 ,  C22C26/00 ,  E21B10/567 ,  E21B10/5735 ,  B22F2207/03

摘要： Polycrystalline diamond constructions comprises a diamond body attached to a metallic substrate, and having an engineered metal content. The body comprises bonded together diamond crystals with a metal material disposed interstitially between the crystals. A body working surface has metal content of 2 to 8 percent that increases moving away therefrom. A transition region between the body and substrate includes metal rich and metal depleted regions having controlled metal content that provides improved thermal expansion matching/reduced residual stress. A point in the body adjacent the metal rich zone has a metal content that is at least about 3 percent by weight greater than that at a body/substrate interface. The metal depleted zone metal content increases gradually moving from the body, and has a thickness greater than 1.25 mm. Metal depleted zone metal content changes less about 4 percent per millimeter moving along the substrate.

摘要翻译： 多晶金刚石结构包括连接到金属基底上并具有工程金属含量的金刚石体。 身体包括将金刚石晶体与在晶体之间间隙设置的金属材料结合在一起。 身体工作表面的金属含量为2至8％，从而增加其移动。 主体和衬底之间的过渡区域包括具有受控金属含量的富金属和金属贫化区域，其提供改进的热膨胀匹配/降低的残余应力。 邻近金属富集区的身体中的一个点的金属含量比身体/底物界面的金属含量大至少约3重量％。 金属贫化带金属含量从身体逐渐增加，厚度大于1.25mm。 金属贫化区金属含量随着衬底的移动而减少约4％/毫米。

公开(公告)号：US20080142276A1

公开(公告)日：2008-06-19

申请号：US11745726

申请日：2007-05-08

申请人： Anthony GRIFFO ,  Madapusi K. KESHAVAN ,  Youhe ZHANG ,  Yuelin SHEN ,  Michael JANSSEN

发明人： Anthony GRIFFO ,  Madapusi K. KESHAVAN ,  Youhe ZHANG ,  Yuelin SHEN ,  Michael JANSSEN

IPC分类号： E21B10/52

CPC分类号： E21B10/5735

摘要： Thermally stable ultra-hard compact constructions comprise a polycrystalline diamond body substantially free of a catalyst material, and a substrate that is joined thereto. The substrate can be ceramic, metallic, cermet and combinations thereof, and can be joined to the body by a braze material or other material that forms an attachment bond at high pressure/high temperature conditions. The body and substrate are specially formed having complementary interfacing surface features to facilitate providing an improved degree of attachment therebetween. The complementary surface features can in the form of openings and projections, e.g., one of the body or substrate can comprise one or more openings, and the other of the body or substrate can comprise one or more projections, disposed within or extending from respective interfacing surfaces. The complementary surface features operate to resist unwanted delamination between the body and substrate, thereby extending effective service life of the construction.

摘要翻译： 热稳定的超硬紧凑结构包括基本上不含催化剂材料的多晶金刚石体和与其结合的基底。 基材可以是陶瓷，金属，金属陶瓷及其组合，并且可以通过钎焊材料或在高压/高温条件下形成附着结合的其它材料接合到本体。 主体和基底是特别形成的，具有互补的界面表面特征，以便于提供改进的连接程度。 互补的表面特征可以是开口和突起的形式，例如，主体或基底中的一个可以包括一个或多个开口，并且主体或基底中的另一个可以包括设置在相应接口内或从相应接口延伸的一个或多个突起 表面。 互补的表面特征用于抵抗主体和基底之间的不必要的分层，从而延长了结构的有效使用寿命。

公开(公告)号：US20080073126A1

公开(公告)日：2008-03-27

申请号：US11858817

申请日：2007-09-20

申请人： Yuelin SHEN ,  Youhe ZHANG ,  SuJian HUANG ,  Madapusi KESHAVAN

发明人： Yuelin SHEN ,  Youhe ZHANG ,  SuJian HUANG ,  Madapusi KESHAVAN

IPC分类号： E21B10/46 ,  B01J3/06 ,  C01B31/06

CPC分类号： E21B10/567 ,  E21B10/5676

摘要： Polycrystalline diamond composites comprise a polycrystalline diamond body having a plurality of ultra-hard discrete regions dispersed within a polycrystalline diamond second region. The plurality of discrete regions has an density different from of the polycrystalline diamond second region. A metallic substrate can be joined to the body. The discrete regions can be relatively more thermal stable than, have a higher diamond density than, and/or may comprise a binder material that is different from the polycrystalline diamond second region. Polycrystalline diamond composites can be formed by combining already sintered granules with diamond grains to form a mixture, and subjecting the mixture to high pressure/high temperature conditions, wherein the granules form the plurality of discrete regions, or can be made by forming a plurality of unsintered granules, combining them with diamond grains to form a mixture, and then subjecting the mixture to first and second high pressure/high temperature conditions.

摘要翻译： 多晶金刚石复合材料包括具有分散在多晶金刚石第二区域内的多个超硬离散区域的多晶金刚石体。 多个离散区域具有与多晶金刚石第二区域不同的密度。 金属基底可以接合到身体。 离散区域可以比具有比金刚石更高的金刚石密度和/或可以包含不同于多晶金刚石第二区域的粘合剂材料相对更稳定。 多晶金刚石复合体可以通过将已经烧结的颗粒与金刚石晶粒组合以形成混合物而形成，并将混合物经受高压/高温条件，其中颗粒形成多个离散区域，或者可以通过形成多个 未烧结的颗粒，将它们与金刚石晶粒组合以形成混合物，然后使混合物经受第一和第二高压/高温条件。

公开(公告)号：US20220093574A1

公开(公告)日：2022-03-24

申请号：US17092350

申请日：2020-11-09

申请人： Ligang ZHAO ,  Guangming SONG ,  Youhe ZHANG ,  Jie ZHOU ,  Lei LIANG

发明人： Ligang ZHAO ,  Guangming SONG ,  Youhe ZHANG ,  Jie ZHOU ,  Lei LIANG

IPC分类号： H01L25/075 ,  H01L33/62

摘要： The present invention discloses an LED display screen layout method, including an LED display screen, wherein the LED display screen is formed by splicing a plurality of LED modules; each LED module includes four tricolored LED lamps; the four tricolored LED lamps form a square; and the four tricolored LED lamps are arranged in directions formed by sequentially rotating one of the tricolored LED lamps by 90 degrees. With such layout design, when the LED display screen is rotated, no blue line appears at neighboring borders of the LED modules, thus not influencing the display effect of the display screen.