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公开(公告)号：US5443916A
公开(公告)日：1995-08-22
申请号：US112530
申请日：1993-08-27
Applicant: Gopal S. Revankar
Inventor： Gopal S. Revankar
CPC classification number: B22D19/08 , C22C1/1036 , B22F2998/00 , Y10T428/12056 , Y10T428/12063 , Y10T428/12139 , Y10T428/12146
Abstract: A method for impregnating a metal product with a hard wear-resistant surface area comprises providing a wear-resistant layer in the form of a sintered sheet having at least one "pin" integrally attached onto a surface of the sheet. This wear-resistant layer is attached onto the sand core and a metal melt is cast so as to produce the final product. This method can be used to produce a variety of metal products although cast iron, and in particular, ductile iron are preferred. Moreover, this process can effectively employ any of the hard phases which can be sintered, e.g., tungsten carbide, chromium carbide, and the like. Preferably, both the sheet and the "pins" are made from the same mixture of a wear-resistant material, an organic binder, and at least one plasticizer.
Abstract translation: 浸渍具有耐磨损表面积的金属制品的方法包括提供一种具有至少一个“销”的烧结片形式的耐磨层，所述至少一个“销”一体地附着在片材的表面上。 该耐磨层附着在砂芯上，并铸造金属熔体以产生最终产品。 该方法可以用于生产各种金属制品，尽管铸铁，特别是球墨铸铁是优选的。 此外，该方法可以有效地利用可烧结的任何硬质相，例如碳化钨，碳化铬等。 优选地，片和“针”均由耐磨材料，有机粘合剂和至少一种增塑剂的相同混合物制成。
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公开(公告)号：US5267600A
公开(公告)日：1993-12-07
申请号：US822904
申请日：1992-01-21
Applicant: Gopal S. Revankar
Inventor： Gopal S. Revankar
CPC classification number: B22D19/08 , C22C1/1036 , B22F2998/00 , Y10T428/12056 , Y10T428/12063 , Y10T428/12139 , Y10T428/12146
Abstract: A method for impregnating a metal product with a hard wear-resistant surface area comprises providing a wear-resistant layer in the form of a sintered sheet having at least one "pin" integrally attached onto a surface of the sheet. This wear-resistant layer is attached onto the sand core and a metal melt is cast so as to produce the final product. This method can be used to produce a variety of metal products although cast iron, and in particular, ductile iron are preferred. Moreover, this process can effectively employ any of the hard phases which can be sintered, e.g., tungsten carbide, chromium carbide, and the like. Preferably, both the sheet and the "pins" are made from the same mixture of a wear-resistant material, an organic binder, and at least one plasticizer.
Abstract translation: 浸渍具有耐磨损表面积的金属制品的方法包括提供一种具有至少一个“销”的烧结片形式的耐磨层，所述至少一个“销”一体地附着在片材的表面上。 该耐磨层附着在砂芯上，并铸造金属熔体以产生最终产品。 该方法可以用于生产各种金属制品，尽管铸铁，特别是球墨铸铁是优选的。 此外，该方法可以有效地利用可烧结的任何硬质相，例如碳化钨，碳化铬等。 优选地，片和“针”均由耐磨材料，有机粘合剂和至少一种增塑剂的相同混合物制成。
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公开(公告)号：US5190092A
公开(公告)日：1993-03-02
申请号：US564184
申请日：1990-08-08
Applicant: Gopal S. Revankar
Inventor： Gopal S. Revankar
CPC classification number: B22D19/08
Abstract: A method for impregnating an iron product with a hard wear-resistant material surface layer comprises providing a pattern of particles onto a high temperature adhesive layer on a sand core and casting of the iron melt around the particles so as to produce an iron product. Preferably, the pattern of particles is produced by providing a mesh plate having a desired pattern of holes and spreading the particles onto the sheet. The pattern of particles is then transferred on to the adhesive layer so as to minimize contact with the adhesive. This can be accomplished, for example, through the use of adhesive tape. Preferably, the iron product of the present invention comprises ductile iron while the wear-resistant material comprises tungsten carbide which can include about 12 wt % Co.
Abstract translation: 用硬质耐磨材料表面层浸渍铁制品的方法包括在砂芯上的高温粘合剂层上提供颗粒图案，并且在颗粒周围铸造铁熔体以产生铁产品。 优选地，通过提供具有所需图案的孔的网板并将颗粒铺展在片材上来产生颗粒图案。 然后将颗粒的图案转移到粘合剂层上，以使与粘合剂的接触最小化。 这可以通过例如使用粘合带来实现。 优选地，本发明的铁产品包括球墨铸铁，而耐磨材料包括可包含约12重量％的钴的碳化钨
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公开(公告)号：US4936912A
公开(公告)日：1990-06-26
申请号：US211732
申请日：1988-06-27
Applicant: Gopal S. Revankar
Inventor： Gopal S. Revankar
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。
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公开(公告)号：US5879743A
公开(公告)日：1999-03-09
申请号：US955170
申请日：1997-10-21
Applicant: Gopal S. Revankar
Inventor： Gopal S. Revankar
Abstract: A wear-resistant hardfacing and a method for applying such a hardfacing is taught herein. A finely powdered, wear-resistant alloy and a polyvinyl alcohol (PVA) solution slurry is coated onto the metal surface of a tool, implement, or similar item to be hardfaced. Alternatively, a binding coating of PVA solution may be applied to the metal surface followed by application of a layer of a powdered alloy. After the slurry or PVA binding coating has dried, leaving a dry coat of alloy in a PVA matrix, the metal surface is heated to the fusion temperature of the alloy in vacuum, in an inert gas atmosphere, or in hydrogen atmosphere. The metal item with the fused coating is heat treated to impart desired mechanical properties to the part substrate material. The method of the present invention gives a smooth, dense coating of the wear-resistant hardfacing without nonmetallic inclusions.
Abstract translation: 本文教导了耐磨硬化面和应用这种硬化面的方法。 将精细粉末状耐磨合金和聚乙烯醇（PVA）溶液浆料涂覆在工具，工具或类似物品的金属表面上以进行硬表面处理。 或者，可以将金属表面施加PVA溶液的粘合涂层，然后施加一层粉末状合金。 在浆料或PVA粘结涂层干燥后，在PVA基体中留下干燥的合金涂层，金属表面在惰性气体气氛或氢气氛中在真空中加热至合金的熔融温度。 具有熔敷涂层的金属物品被热处理以赋予部件基材材料所需的机械性能。 本发明的方法给出了没有非金属夹杂物的耐磨硬化面的光滑，致密的涂层。
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Patent Agency Ranking
公开(公告)号：US5383513A
公开(公告)日：1995-01-24
申请号：US53697
申请日：1993-04-29
Applicant: Gopal S. Revankar
Inventor： Gopal S. Revankar
CPC classification number: B22D19/08 , C22C1/1036 , B22F2998/00 , Y10T428/12056 , Y10T428/12063 , Y10T428/12139 , Y10T428/12146
Abstract: A method for impregnating a metal product with a hard wear-resistant surface area comprises providing a wear-resistant layer in the form of a sintered sheet having a pattern which facilitates metallurgical bonding with a metal melt and optionally, at least one "pin" integrally attached onto a surface of the sheet. This wear-resistant layer is attached onto the sand core and a metal melt is cast so as to produce the final product. This method can be used to produce a variety of metal products although cast iron is preferred. Moreover, this process can effectively employ any of the hard phases which can be sintered, e.g., tungsten carbide, chromium carbide, and the like.
Abstract translation: 浸渍具有耐磨损表面积的金属产品的方法包括提供具有图案形式的耐磨层，所述耐磨层具有促进与金属熔体的冶金结合的图案，并且可选地，至少一个“销” 附着在片材的表面上。 该耐磨层附着在砂芯上，并铸造金属熔体以产生最终产品。 尽管铸铁是优选的，但该方法可用于生产各种金属产品。 此外，该方法可以有效地利用可烧结的任何硬质相，例如碳化钨，碳化铬等。
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公开(公告)号：US5190091A
公开(公告)日：1993-03-02
申请号：US564185
申请日：1990-08-08
Applicant: Gopal S. Revankar
Inventor： Gopal S. Revankar
CPC classification number: B22D19/08
Abstract: A method for impregnating an aluminum product with a hard wear resistant surface area comprises providing a desired pattern of particles thereon, providing a sand core which has an high temperature adhesive layer on at least a portion thereof and transferring the pattern of particles onto the adhesive layer, in such a manner so as to minimize contact with the adhesive. After the adhesive is cured, an aluminum melt is cast around the carbides so as to produce an aluminum product having a wear resistant material surface layer. Preferably, the aluminum alloy contains about 4% by weight of copper and the wear resistant material comprises tungsten carbide containing 12 wt. % Co. In one embodiment, the particles are transferred onto the adhesive layer through the use of an adhesive tape which is used to pick up the pattern of particle and then placed upon the adhesive layer on the core surface.
Abstract translation: 用于浸渍具有耐磨损表面积的铝制品的方法包括在其上提供所需的颗粒图案，提供在至少一部分上具有高温粘合剂层的砂芯，并将颗粒图案转移到粘合剂层上 ，以便使与粘合剂的接触最小化。 粘合剂固化后，在碳化物周围浇铸铝熔体，以生产具有耐磨材料表面层的铝制品。 优选地，铝合金含有约4重量％的铜，耐磨材料包含含有12重量％ ％Co.在一个实施方案中，通过使用粘合带将颗粒转移到粘合剂层上，粘合带用于拾取颗粒图案，然后放置在芯表面上的粘合剂层上。
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8.发明授权公开(公告)号：US08684475B2
公开(公告)日：2014-04-01
申请号：US11171193
申请日：2005-07-01
Applicant: Timothy D. Wodrich , Todd B. Niemann , Gopal S. Revankar
Inventor： Timothy D. Wodrich , Todd B. Niemann , Gopal S. Revankar
IPC: F16H55/48
CPC classification number: B62D55/14 , B62D55/12 , B62D55/15 , B62D55/21 , B62D55/32 , C21D9/0087 , C23C30/005
Abstract: Undercarriage assembly components of track-type machines having a metallurgically bonded wear-resistant coating and methods for forming such coated undercarriage assembly components is taught herein. The bodies of the undercarriage assembly components, formed of an iron-based alloy, have a hard metal alloy slurry disposed on a surface or into an undercut or channel and then fused to form a metallurgical bond with the iron-based alloy. 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 of the undercarriage assembly components having the wear-resistant coating corresponds to a wear surface of the component during operation of the endless track of the track-type vehicle.
Abstract translation: 本文教导了具有冶金结合的耐磨涂层的轨道式机器的底架组件部件和用于形成这种涂覆的底架组件部件的方法。 由铁基合金形成的底盘组件部件的主体具有设置在表面上或底切或通道中的硬质合金浆料，然后熔合以与铁基合金形成冶金结合。 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。 具有耐磨涂层的底盘组件部件的外表面的部分对应于轨道式车辆的环形轨道的操作期间部件的磨损表面。
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公开(公告)号：US5299620A
公开(公告)日：1994-04-05
申请号：US822903
申请日：1992-01-21
Applicant: Gopal S. Revankar , Daniel L. DeRoo
Inventor： Gopal S. Revankar , Daniel L. DeRoo
CPC classification number: B22D19/08
Abstract: A method for impregnating a metal product with a hard wear-resistant surface layer comprises providing a wear-resistant layer in the form of a partially sintered sheet having at least one peg formed therein; attaching the wear-resistant layer to a mold surface; and casting a metal melt so as to produce a metal product having a wear-resistant material surface layer. Preferably the mold surface is a sand core and the sheet has a hexagonal pattern molded therein so as to form a plurality of pegs.
Abstract translation: 用硬质耐磨表面层浸渍金属产品的方法包括提供形成在其中的至少一个钉的部分烧结片形式的耐磨层; 将耐磨层附接到模具表面; 并铸造金属熔体以制造具有耐磨材料表面层的金属产品。 优选地，模具表面是砂芯，并且片材具有模制在其中的六边形图案，以便形成多个钉。
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10.发明授权Method for forming a polymeric plastic product having a hard wear-resistant surface 失效形成具有耐磨损表面的聚合物塑料制品的方法
公开(公告)号：US5288353A
公开(公告)日：1994-02-22
申请号：US822905
申请日：1992-01-21
Applicant: Gopal S. Revankar
Inventor： Gopal S. Revankar
IPC: B29C43/18 , B29C31/00 , B29C43/34 , B29C45/14 , B29C69/00 , B29C70/64 , B29K23/00 , B29K75/00 , B29K105/16 , B32B19/02
CPC classification number: B29C31/008 , B29C70/64 , B29K2995/0087
Abstract: A method for impregnating a plastic product with a hard wear-resistant material surface layer comprises providing a support plate having a desired shape and further having an adhesive layer on at least a portion thereof; introducing a plurality of particles comprising a hard wear-resistant material onto the adhesive layer; curing the adhesive so as to anchor the particles onto the support plate; placing the support plate into a mold cavity; introducing a polymer material into the cavity; exposing the sheet and polymer material to conditions effective to provide a polymer product having a hard wear-resistant material surface layer therein; cooling the mold and removing the support sheet therefrom. In a preferred embodiment, a regular pattern of particles is provided by providing a mesh plate having a desired pattern of holes set for predetermined size of wear-resistant particles; spreading the particles onto the mesh plate so as to provide a particle in substantially all of the holes; and transferring the pattern of particles onto the adhesive layer so as to minimize contact with the adhesive. The polymer material employed in the present invention can be a polymer powder, a liquified polymer or a two part adhesive mixture which reacts to form a thermoset polymer product.
Abstract translation: 用硬质耐磨材料表面层浸渍塑料制品的方法包括提供具有所需形状的支撑板，并在其至少一部分上还具有粘合剂层; 将多个包含硬质耐磨材料的颗粒引入所述粘合剂层上; 固化粘合剂以将颗粒锚定到支撑板上; 将支撑板放置在模腔中; 将聚合物材料引入空腔中; 将片材和聚合物材料暴露于有效提供其中具有耐磨损材料表面层的聚合物产品的条件下; 冷却模具并从中移出支撑片。 在优选实施例中，通过提供具有为预定尺寸的耐磨颗粒设置的所需孔的图案的网板来提供规则图案的颗粒; 将颗粒铺展在网板上，以便在几乎所有的孔中提供颗粒; 并将颗粒图案转移到粘合剂层上，以使与粘合剂的接触最小化。 用于本发明的聚合物材料可以是聚合物粉末，液化聚合物或两部分粘合剂混合物，它们反应形成热固性聚合物产品。
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