公开(公告)号：US5027878A

公开(公告)日：1991-07-02

申请号：US417306

申请日：1989-10-05

Applicant: Gopal S. Revankar ,  Daniel L. DeRoo ,  John J. Maberry ,  David P. Jones

Inventor： Gopal S. Revankar ,  Daniel L. DeRoo ,  John J. Maberry ,  David P. Jones

IPC: B22C9/04 ,  B22D19/08

CPC classification number: B22C9/046 ,  B22D19/08

Abstract: A method for impregnating an iron product with a hard wear-resistant material surface layer comprises providing a destructible pattern of the desired iron product and applying a paste which comprises a powder of the wear-resistant material and a binder comprising a solution of polyvinyl alcohol onto a portion of the surface of the pattern. The pattern is then coated with a refractory layer by applying a suitable aqueous slurry. A mold is made using the pattern and then an iron melt is cast into the mold thereby forming an iron product having a cast in-place wear-resistant material surface layer. In other embodiments, the method includes the formation of a cavity in the pattern where the binder and particles are introduced into the cavity. In addition, a sheet comprising the binder and particles can be formed, which sheet is then attached to the pattern.

Abstract translation: 用硬质耐磨材料表面层浸渍铁产品的方法包括提供所需铁产品的破坏性图案，并将包含耐磨材料的粉末和包含聚乙烯醇溶液的粘合剂的糊料涂覆到 图案表面的一部分。 然后通过施加合适的含水浆料，将该图案用耐火层涂覆。 使用图案制造模具，然后将铁熔体浇铸到模具中，从而形成具有铸造就地耐磨材料表面层的铁产品。 在其他实施例中，该方法包括在图案中形成空腔，其中粘合剂和颗粒被引入空腔中。 此外，可以形成包含粘合剂和颗粒的片材，然后将该片材附着到图案上。

公开(公告)号：US07163754B2

公开(公告)日：2007-01-16

申请号：US10690566

申请日：2003-10-23

Applicant: Gopal S. Revankar ,  Timothy D. Wodrich ,  Todd B. Niemann

Inventor： Gopal S. Revankar ,  Timothy D. Wodrich ,  Todd B. Niemann

IPC: F16H55/17 ,  F16H55/30 ,  C21D1/10 ,  C21D9/32 ,  C22F1/10

CPC classification number: C23C26/02 ,  C23C2/28 ,  C23C10/18 ,  F16H55/06 ,  F16H55/30 ,  Y10T29/4948 ,  Y10T428/12937 ,  Y10T428/12944

Abstract: A sprocket has a base steel member including an outer toothed profile surface, at least a portion of the outer toothed profile surface having a wear and corrosion resistant coating disposed thereon; the coating comprising an alloy, the alloy comprising at least 60 weight % iron, cobalt, nickel, or alloys thereof. A method of producing a wear and corrosion resistant sprocket includes:(i) machining a base steel member to form an outer toothed profile surface thereon; (ii) applying a coating to at least a portion of the surface; and (iii) fusing the coating to the base steel member.

Abstract translation: 链轮具有包括外齿形轮廓表面的基础钢构件，外齿轮廓表面的至少一部分具有设置在其上的耐磨损和耐腐蚀涂层; 所述涂层包括合金，所述合金包含至少60重量％的铁，钴，镍或其合金。 一种耐磨损和耐腐蚀链轮的制造方法包括：（i）加工基底钢构件以在其上形成外齿轮廓表面; （ii）将涂层施加到所述表面的至少一部分; 和（iii）将涂层熔合到基体钢构件上。

公开(公告)号：US06948784B2

公开(公告)日：2005-09-27

申请号：US10090617

申请日：2002-03-06

Applicant: Timothy D. Wodrich ,  Todd B. Niemann ,  Gopal S. Revankar

Inventor： Timothy D. Wodrich ,  Todd B. Niemann ,  Gopal S. Revankar

IPC: B62D55/21 ,  B60D55/12 ,  B21D53/10 ,  F16C33/02 ,  F16G13/02

CPC classification number: B62D55/21 ,  Y10T29/49707

Abstract: A track pin bushing for cooperating with a track pin in an endless track has a tubular body with a metallurgically bonded wear-resistant coating and a method for forming such a coated track pin bushing is taught herein. The tubular body, formed of an iron-based alloy, has an outer surface that is carburized and quenched, i.e., case-hardened, in at least a section thereof. At least a portion of the case hardened section has been removed to a depth sufficient to expose a non-carburized layer of the iron-based alloy. A hard metal alloy slurry is disposed on the non-carburized layer and forms a metallurgical bond between the non-carburized layer and the coated unfused slurry by fusing the hard metal alloy. The thickness of the unfused slurry is adjusted to be from 1.67 to 2.0 times a final thickness of the wear-resistant coating. The wear-resistant coating comprises a fused, metal alloy comprising at least 60% iron, cobalt, nickel, or alloys thereof. The portion of the outer surface with the wear-resistant coating corresponds to a contact surface adapted to engage with a drive sprocket in the endless track of the track-type vehicle.

Abstract translation: 用于与循环轨道中的轨道销配合的履带销衬套具有带有冶金结合的耐磨涂层的管状体，并且在此教导了用于形成这种涂覆的履带销衬套的方法。 由铁基合金形成的管状体在其至少一部分中具有被渗碳淬火的表面硬化的外表面。 壳体硬化部分的至少一部分被去除到足以露出铁基合金的非渗碳层的深度。 在非渗碳层上设置硬质合金浆料，通过熔融硬质合金，在非渗碳层与被覆未熔融浆料之间形成冶金结合体。 将未熔融浆料的厚度调节至耐磨涂层的最终厚度的1.67至2.0倍。 耐磨涂层包括熔融金属合金，其包含至少60％的铁，钴，镍或其合金。 具有耐磨涂层的外表面的部分对应于适于与轨道式车辆的环形轨道中的驱动链轮接合的接触表面。

公开(公告)号：US4954058A

公开(公告)日：1990-09-04

申请号：US471195

申请日：1990-01-25

Applicant: Gopal S. Revankar

Inventor： Gopal S. Revankar

IPC: C22C33/02 ,  F01C19/00 ,  F02F7/00 ,  F16J9/26

CPC classification number: C22C33/0292 ,  C22C33/0207 ,  F01C19/005 ,  F02F7/0087 ,  F16J9/26

Abstract: A apex seal is formed by cold pressing and sintering a mixture of Clevite and tungsten carbide powders to form a seal wherein harder rounded carbide particles are distributed within a softer matrix.

Abstract translation: 通过冷压和烧结Clevite和碳化钨粉末的混合物形成顶点密封，以形成密封，其中更硬的圆形碳化物颗粒分布在较软的基质内。