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公开(公告)号：US5535838A
公开(公告)日：1996-07-16
申请号：US250894
申请日：1994-05-31
申请人： Madapusi K. Keshavan , Kuttaripalayam T. Kembaiyan , Wayne C. Quantz , Robert C. Tucker, Jr. , Melvin D. Mendenhall , Jean M. Quets
发明人： Madapusi K. Keshavan , Kuttaripalayam T. Kembaiyan , Wayne C. Quantz , Robert C. Tucker, Jr. , Melvin D. Mendenhall , Jean M. Quets
摘要： A method to apply a high performance overlay to a metal substrate of a rock bit to render the substrate surfaces of the rock bit more resistant to erosion, corrosion and substrate cracking while performing in an earthen formation is described. The method comprises the steps of bombarding the surfaces with a thermal spray of entrained fine particles of a cermet based composition at a velocity in excess of 3,000 ft/per sec. The resultant coating of the cermet based composition has a tensile bond strength in excess of 20,000 psi that results in an increase of the strain to fracture of the rock bit surface. The hard overlay has a resistance to severe service environments of high strain and shock tolerance as well as a higher load carrying capacity.
摘要翻译： 描述了一种在岩石钻头的金属基底上施加高性能覆盖层以使得岩石钻头的基底表面在进行土层形成时更耐腐蚀，腐蚀和基底裂纹的方法。 该方法包括以超过3,000ft / sec的速度用基于金属陶瓷的组合物夹带的细颗粒的热喷雾轰击表面的步骤。 金属陶瓷基组合物的所得涂层具有超过20,000psi的拉伸粘合强度，导致岩石钻头表面的断裂应变增加。 硬覆盖层具有耐应变和抗冲击能力强的严苛使用环境以及较高的承载能力。
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公开(公告)号：US4519840A
公开(公告)日：1985-05-28
申请号：US546480
申请日：1983-10-28
CPC分类号： C22C29/08 , C23C4/067 , Y10T428/12014 , Y10T428/12049
摘要： A coating composition applied to a substrate by a thermal spray process which consists essentially of from about 11.0 to about 18.0 weight percent cobalt, from about 2.0 to about 6.0 weight percent chromium, from about 3.0 to about 4.5 weight percent carbon and the balance tungsten.
摘要翻译： 涂料组合物通过热喷涂方法施加到基材上，其基本上由约11.0至约18.0重量％的钴，约2.0至约6.0重量％的铬，约3.0至约4.5重量％的碳和余量的钨组成。
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3.发明授权High strength, wear and corrosion resistant coatings and method for producing the same 失效高强度，耐磨损和耐腐蚀的涂料及其制备方法
公开(公告)号：US4588608A
公开(公告)日：1986-05-13
申请号：US712649
申请日：1985-03-18
摘要： A coating composition applied to a substrate by a thermal spray process which consists essentially of from about 11.0 to about 18.0 weight percent cobalt, from about 2.0 to about 6.0 weight percent chromium, from about 3.0 to about 4.5 weight percent carbon and the balance tungsten.
摘要翻译： 涂料组合物通过热喷涂方法施加到基材上，其基本上由约11.0至约18.0重量％的钴，约2.0至约6.0重量％的铬，约3.0至约4.5重量％的碳和余量的钨组成。
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4.发明授权
公开(公告)号：US5137422A
公开(公告)日：1992-08-11
申请号：US599482
申请日：1990-10-18
CPC分类号： C23C4/06 , Y10T29/49337
摘要： An improved erosion resistant coating for a gas path component of a turbo machine which comprises the thermal spraying of a chromium carbide, such as Cr.sub.3 C.sub.2, and an age hardenable nickel base alloy, such as Inconel 718, onto the gas path component and then, preferably, heat treating the deposited coating to harden the coating.
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公开(公告)号：US5223332A
公开(公告)日：1993-06-29
申请号：US531168
申请日：1990-05-31
申请人： Jean M. Quets
发明人： Jean M. Quets
CPC分类号： C23C28/04 , C23C4/02 , Y02T50/67 , Y10T428/12535 , Y10T428/12611 , Y10T428/1284 , Y10T428/24975
摘要： A duplex coating for substrates that comprises an undercoat of tungsten carbide-cobalt having a strain-to-fracture of greater than 4.3.times.10.sup.-3 inch per inch and a top coat of a ceramic material such as alumina in which the ratio of the thickness of the top coat to the undercoat is from 6:1 to 1:3.
摘要翻译： 一种用于基材的双面涂层，其包括具有大于4.3×10 -3英寸/英寸的应变 - 断裂的碳化钨 - 钴的底涂层和诸如氧化铝的陶瓷材料的顶涂层，其中， 底漆的外涂层为6：1至1：3。
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公开(公告)号：US4826734A
公开(公告)日：1989-05-02
申请号：US163945
申请日：1988-03-03
CPC分类号： C23C4/06
摘要： The invention relates to a coated article comprising a substrate coated with a tungsten carbide-cobalt layer having a strain-to-fracture greater than 4.3.times.10.sup.-3 inch per inch and a Vickers hardness of greater than about 875 HV.sub.0.3.
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公开(公告)号：US4626477A
公开(公告)日：1986-12-02
申请号：US831325
申请日：1986-02-20
申请人： John E. Jackson , Thomas A. Adler , Jean M. Quets
发明人： John E. Jackson , Thomas A. Adler , Jean M. Quets
CPC分类号： C22C29/08 , C23C4/067 , Y10T428/31678 , Y10T442/2148 , Y10T442/273
摘要： A coating composition applied to a substrate by a thermal spray process which consists essentially of from about 6.5 to about 9.0 weight percent cobalt, from about 2.0 to about 4.0 weight percent chromium, from about 3.0 to about 4.0 weight percent carbon and the balance tungsten.
摘要翻译： 涂料组合物通过热喷涂方法施用于基材，其基本上由约6.5至约9.0重量％的钴，约2.0至约4.0重量％的铬，约3.0至约4.0重量％的碳和余量的钨组成。
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