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51. 发明授权

US5443663A Plasma nitrided titanium and titanium alloy products 失效
标题翻译：等离子氮化钛和钛合金产品
公开(公告)号：US5443663A
公开(公告)日：1995-08-22
申请号：US235171
申请日：1994-04-29
申请人： Efstathius Meletis
发明人： Efstathius Meletis
IPC分类号： C23C8/24 , C23C8/36 , C22C14/00
CPC分类号： C23C8/24 , C23C8/36
摘要： The present invention relates to ion nitriding of pure titanium or titanium-containing alloys at low pressure by intensifying the glow discharge. Plasma intensification was produced by thermionic emission in conjunction with a triode glow discharge system. Effective ion nitriding can be achieved by employing the present invention at relatively low temperatures (480.degree. C.) and with significantly enhanced compound layer growth kinetics compared to the conventional nitriding techniques. Processed Ti and Ti-6Al-4V developed a surface layer of TiN followed by a Ti.sub.2 N layer and an interstitial nitrogen diffusion zone. Processed specimens showed a three fold increase in surface hardness. Surface roughness was found to be a function of the degree of plasma intensification. Processing of Ti-6Al-4V resulted in a higher wear, corrosion and wear-corrosion resistance. The present invention indicates that ion nitriding with intensified glow discharge has a great potential as a surface modification method for Ti and Ti alloys. Materials nitriding by the present invention having the properties defined above are suitable for use as orthopaedic implant devices as well as other applications of titanium and titanium alloys requiring resistance to wear and corrosion.
摘要翻译：本发明涉及通过强化辉光放电在低压下对纯钛或含钛合金的离子渗氮。通过热电子发射与三极管辉光放电系统结合产生等离子体增强。通过在相对较低的温度（480℃）下采用本发明并且与常规氮化技术相比，可显着提高化合物层生长动力学，可以实现有效的离子渗氮。加工的Ti和Ti-6Al-4V开发了TiN的表面层，然后是Ti2N层和间隙氮扩散区。加工样品的表面硬度增加了三倍。发现表面粗糙度是等离子体增强度的函数。 Ti-6Al-4V的加工导致更高的磨损，腐蚀和耐磨损性。本发明表明，加强辉光放电的离子氮化作为Ti和Ti合金的表面改性方法具有很大的潜力。具有上述性质的本发明氮化的材料适合用作矫形植入装置以及需要耐磨损和腐蚀的钛和钛合金的其它应用。

52. 发明授权

US5376188A Method of nitriding austenitic stainless steel products 失效
标题翻译：奥氏体不锈钢产品渗氮方法
公开(公告)号：US5376188A
公开(公告)日：1994-12-27
申请号：US17175
申请日：1993-02-12
申请人： Masaaki Tahara , Haruo Senbokuya , Kenzo Kitano , Tadashi Hayashida , Teruo Minato
发明人： Masaaki Tahara , Haruo Senbokuya , Kenzo Kitano , Tadashi Hayashida , Teruo Minato
IPC分类号： C23C8/26 , C21D1/76 , C21D6/00 , C21D9/00 , C23C8/34 , C23C8/24 , C23F1/28
CPC分类号： C21D1/76 , C21D6/004 , C23C8/34 , C21D9/0093
摘要： A hard nitrided layer is formed on austenitic stainless steel by holding the austenitic stainless steel in a heated condition under a fluorine- or fluoride-containing atmosphere and then nitriding it so that a close uniform nitriding layer can be formed, resulting the remarkable improvement in the surface hardness of the above-mentioned austenitic stainless steel. The temperature in the above-mentioned nitriding treatment is set below 450.degree. C. so that high anti-corrosion property, originally inherent in austenitic stainless steel, can be retained without deterioration.
摘要翻译：通过在奥氏体不锈钢的含氟或氟化物气氛下将奥氏体不锈钢保持在加热条件下，然后对其进行氮化，形成硬质氮化层，从而形成密切均匀的氮化层，从而显着提高上述奥氏体不锈钢的表面硬度。上述渗氮处理中的温度设定在450℃以下，可以保持奥氏体不锈钢本来固有的高抗腐蚀性，而不会变质。

53. 发明授权

US5314675A Process for direct nitriding of metals of low melting point 失效
标题翻译：直接氮化低熔点金属的工艺
公开(公告)号：US5314675A
公开(公告)日：1994-05-24
申请号：US816235
申请日：1992-01-03
申请人： Dominique Dubots , Pierre Faure
发明人： Dominique Dubots , Pierre Faure
IPC分类号： C23C8/24 , C01B21/068 , C01B21/072 , C01B21/082 , C04B35/58 , C04B35/581 , C04B35/591 , C04B35/65 , C04B35/56 , C01B21/06
CPC分类号： C04B35/65 , C01B21/0682 , C01B21/0722 , C01B21/0828 , C04B35/58 , C04B35/581 , C04B35/591
摘要： Process for direct nitriding of metals of relatively low melting point with the aid of a nitrogen-containing gas, in which a powder of at least one of the metals is mixed with a refractory powder, the mixture is heated under an atmosphere of nitrogen-containing gas at atmospheric pressure until the start of a rapid and exothermic nitriding reaction, and this reaction, which proceeds at a temperature generally higher than that of the melting point of the metals without apparent melting being observed, is allowed to proceed until all of the metals have been consumed, in order to obtain a highly porous solid mass which is easy to grind and is based on metal nitrides or metal oxynitrides.
摘要翻译：借助于含有至少一种金属的粉末与难熔粉末混合的含氮气体直接氮化相对低熔点的金属的方法，将混合物在含氮气氛下加热在大气压下的气体直到开始快速和放热的氮化反应，并且该反应在通常高于未观察到熔融的金属的熔点的温度下进行，直到所有金属已经被消耗，以获得易于研磨并且基于金属氮化物或金属氮氧化物的高度多孔的固体物质。

54. 发明授权

US5254183A Gas turbine elements with coke resistant surfaces 失效
标题翻译：具有耐焦表面的燃气轮机元件
公开(公告)号：US5254183A
公开(公告)日：1993-10-19
申请号：US811346
申请日：1991-12-20
申请人： John A. Harris, III , William H. Edwards, III , Edward S. Smith
发明人： John A. Harris, III , William H. Edwards, III , Edward S. Smith
IPC分类号： C23C8/24 , C23C8/26 , C23C8/80 , C22F1/00
CPC分类号： C23C8/24 , C23C8/26 , C23C8/80
摘要： Elements for use as protecting fuel contacting surfaces of a gas turbine engine are protected from carbon deposition by heating the element in a nitrogen containing atmosphere for sufficient time to cause penetration and absorption of nitrogen into the grain boundaries of the alloy surface, which acts as a barrier between the hydrocarbon fuel and the catalytic elements in the surfaces.
摘要翻译：用于保护燃气涡轮发动机的燃料接触表面的元件通过在含氮气氛中加热元件足够的时间来保护氮气进入合金表面的晶界，从而避免碳沉积，其作为烃燃料和表面中的催化元素之间的阻挡。

55. 发明授权

US5186764A Method and apparatus for treating plates with gas 失效
标题翻译：用气体处理板的方法和装置
公开(公告)号：US5186764A
公开(公告)日：1993-02-16
申请号：US746793
申请日：1991-08-12
申请人： Carl-Heinz Stiasny
发明人： Carl-Heinz Stiasny
IPC分类号： C23C8/26 , C23C8/24
CPC分类号： C23C8/24
摘要： A method of treating apertured plates with a gaseous medium, e.g. to produce a nitride surface layer thereon, by placing the plates in rows in a furnace and causing the gaseous medium to flow across the surfaces of the plates by circulating the medium through the furnace and deflecting the medium as it flows along the furnace walls away from the walls to give a substantially uniform flow of gas across the plate surfaces.
摘要翻译：用气体介质处理多孔板的方法，例如在其上产生氮化物表面层，通过将板放置在炉中并使气体介质流过板的表面，通过使介质循环通过炉并使介质沿着炉壁流动而偏转，这些壁使得气体跨过板表面产生基本上均匀的气流。

56. 发明授权

US5154779A Method of nitriding, carburizing, or oxidizing refractory metal articles using microwaves 失效
$Method of nitriding, carburizing, or oxidizing refractory metal articles using microwaves$
标题翻译：使用微波渗氮，渗碳或氧化难熔金属制品的方法
公开(公告)号：US5154779A
公开(公告)日：1992-10-13
申请号：US837096
申请日：1992-02-18
申请人： Cressie E. Holcombe , Norman L. Dykes , Terry N. Tiegs
发明人： Cressie E. Holcombe , Norman L. Dykes , Terry N. Tiegs
IPC分类号： C23C8/24 , H05B6/64
CPC分类号： C23C8/24 , H05B6/64
摘要： A method of nitriding an article of refractory-nitride-forming metal or metalloids. A consolidated metal or metalloid article is placed inside a microwave oven and nitrogen containing gas is introduced into the microwave oven. The metal or metalloid article is heated to a temperature sufficient to react the metal or metalloid with the nitrogen by applying a microwave energy within the microwave oven. The metal or metalloid article is maintained at that temperature for a period of time sufficient to convert the article of metal or metalloid to an article of refractory nitride. in addition, a method of applying a coating, such as a coating of an oxide, a carbide, or a carbo-nitride, to an article of metal or metalloid by microwave heating.
摘要翻译：氮化形成难熔氮化物的金属或准金属的方法。将固结的金属或准金属物品放置在微波炉内，并将含氮气体引入微波炉。将金属或准金属物品加热到足以通过在微波炉内施加微波能量使金属或准金属与氮反应的温度。金属或准金属物品在该温度下保持足以将金属或准金属物质转化为难熔氮化物制品的时间。此外，通过微波加热将诸如氧化物，碳化物或碳氮化物的涂层的涂层施加到金属或准金属物品上的方法。

57. 发明授权

US4915361A Rapid thermochemical treatment automatic installation 失效
标题翻译：快速热化学处理自动安装
公开(公告)号：US4915361A
公开(公告)日：1990-04-10
申请号：US248139
申请日：1988-09-23
申请人： Oliver Schwebel , Denis Lebeaupin
发明人： Oliver Schwebel , Denis Lebeaupin
IPC分类号： B65G47/80 , C21D1/00 , C21D9/00 , C23C8/20 , C23C8/24 , C23C14/56 , F27B19/02
CPC分类号： C23C14/568 , C21D9/0018
摘要： A rapid thermochemical treatment automatic installation for a charge constituted by parts, intended particularly for the mechanical industry, which includes a plurality of treatment modules such as an induction preheating module, thermochemical treatment modules, a quenching module, a device for carrying out the loading and unloading of the parts stacked in columns and a transfer device of the columns of parts between the various treatment modules. The installation includes a fixed circular plate on the periphery of which are distributed various treatment modules, which are suspended beneath the lower surface of the plate, which plate is formed with openings which can be tightly closed for the introduction of the parts to be treated in the respective modules, and a mobile disc rotably and coaxially mounted above the fixed plate, the mobile disc receiving the transfer device so that the transfer device can be brought successively above the loading/unloading station and the access station to the various modules for respectively introducing in the installation a column of parts to be treated, transferring the column of parts to be treated, transferring the column successively to the various modules and extracting from the installation the column of parts after treatment.
摘要翻译：一种用于特别用于机械工业的部件的电荷的快速热化学处理自动安装，其包括多个处理模块，例如感应预热模块，热化学处理模块，淬火模块，用于执行装载的装置和堆放在柱上的部件的卸载和各种处理模块之间的各列的转移装置。该装置包括在其周边上的固定圆板，其分布有各种处理模块，其悬挂在板的下表面下方，该板形成有可以紧密关闭的开口，用于将待处理的部件引入相应的模块和可旋转地并同轴地安装在固定板上方的移动盘，移动盘接收传送装置，使得传送装置可以连续地在加载/卸载站和接入站之上连接到各个模块，以分别引入在安装中要处理的一列零件，转移待处理的零件列，将柱连续转移到各种模块，并从处理后从安装柱中提取零件。

58. 发明授权

US4894090A Powder particles for fine-grained hard material alloys 失效
标题翻译：粉末颗粒用于细粒硬质合金
公开(公告)号：US4894090A
公开(公告)日：1990-01-16
申请号：US163155
申请日：1988-02-25
申请人： Carl S. G. Ekemar , Rolf G. Oskarsson
发明人： Carl S. G. Ekemar , Rolf G. Oskarsson
IPC分类号： B22F9/02 , B22F1/00 , B22F9/04 , C22C1/05 , C22C1/10 , C22C29/00 , C22C32/00 , C23C8/24 , C23C8/32
CPC分类号： B22F9/04 , C22C1/051 , C22C1/1078 , C22C32/0026 , B22F2009/041
摘要： The present invention relates to powder particles consisting of hard principles and binder metal for the manufacture of superior, uniquely fine-grained hard material alloys and to a procedure for the preparation of said particles.The preparation is performed in an economical way because the procedure starts from conventional melt metallurgical raw materials. A pre-alloy consisting of hard principle forming and binder phase forming elements is subjected to a heat treatment such as nitriding and carburizing after being crushed. The final product is particles composed by hard principle phases and binder metal phases formed "in situ" in an effective binding.
摘要翻译：本发明涉及由硬原理和粘合剂金属组成的粉末颗粒，用于制造优良的，独特的细粒硬质合金，以及制备所述颗粒的方法。该制备以经济的方式进行，因为该方法从常规熔融冶金原料开始。由硬质成型和粘结相成形元素构成的预合金在被粉碎后进行氮化，渗碳等热处理。最终产品是由硬原相和由“原位”形成的粘结金属相组成的颗粒，有效结合。

59. 发明授权

US4857360A Process for the manufacture of NbN superconducting cavity resonators 失效
标题翻译：制造NbN超导腔谐振器的工艺
公开(公告)号：US4857360A
公开(公告)日：1989-08-15
申请号：US24830
申请日：1987-03-12
申请人： Jurgen Halbritter , Hartmut Baumgartner
发明人： Jurgen Halbritter , Hartmut Baumgartner
IPC分类号： C23C8/24 , H01P11/00
CPC分类号： C23C8/24 , H01P11/008 , Y10S505/818 , Y10S505/819 , Y10S505/866
摘要： The quality of superconducting cavity resonators depends to a very great extent on the surface quality of the cavities. The invention relates to a process for the manufacture of superconducting cavity resonators with improved surface quality, whereby even complex shaped cavity resonators can be made with cavities coated with NbN.
摘要翻译：超导腔谐振器的质量在很大程度上取决于空腔的表面质量。本发明涉及一种用于制造具有改进的表面质量的超导腔谐振器的方法，由此甚至复杂形状的腔谐振器可以被制成具有涂覆有NbN的空腔。

60. 发明授权

US4786526A Surface treating method and apparatus 失效
标题翻译：表面处理方法和装置
公开(公告)号：US4786526A
公开(公告)日：1988-11-22
申请号：US66483
申请日：1987-05-29
申请人： Tohru Arai , Junji Endo , Hiromasa Takeda
发明人： Tohru Arai , Junji Endo , Hiromasa Takeda
IPC分类号： C23C8/20 , C23C8/06 , C23C8/24 , C23C10/08 , C23C10/14 , C23C16/32 , C23C16/34 , C23C16/448 , B05D1/22
CPC分类号： C23C16/34 , C23C16/32 , C23C16/4488 , C23C8/06 , Y10S118/05
摘要： A method and apparatus for forming a layer of a carbide or nitride of, for example, titanium or vanadium on the surface of material to be treated in a fluidized bed furnace. A refractory powder for forming a fluidized bed, a vessel or vessels filed with powder of a treating agent, and the material to be treated are placed in the furnace. The treating agent includes powder of at least one carbide or nitride forming metal or alloy and powder of at least one compound selected from the group consisting of chlorides, fluorides, bromides, iodides and boro-fluorides of alkali and alkaline earth metals and/or at least one of an ammonium halide and a metal halide. A fluidizing gas is introduced into the furnace under heat to form a fluidized bed in which the surface of the material to be treated is treated. The vessel or vessels are placed in the furnace in a spaced-apart relation from the material to be treated, so that no powder of the treating agent may adhere to the surface of the material to be treated.
摘要翻译： PCT No.PCT / JP86 / 00360 Sec。 371日期1987年5月29日 102（e）日期1987年5月29日PCT提交1986年7月14日PCT公布。公开号WO87 / 0207300 日期：1987年4月9日。一种用于在流化床炉中在待处理材料的表面上形成例如钛或钒的碳化物或氮化物层的方法和装置。将用于形成流化床的耐火材料粉末，装有处理剂粉末的容器和容器以及被处理材料放入炉中。处理剂包括至少一种碳化物或氮化物形成金属或合金的粉末和至少一种选自碱金属和碱土金属的氯化物，氟化物，溴化物，碘化物和硼氟化物的化合物和/或在卤化铵和金属卤化物中的至少一种。在加热下将流化气体引入炉中以形成待处理材料的表面的流化床。容器或容器以与待处理材料间隔开的关系放置在炉中，使得处理剂的粉末不会粘附到待处理材料的表面。

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