-
1.发明授权Carbide method and article for hard finishing resulting in improved wear resistance 有权硬质合金方法和硬质合金制品，提高耐磨性公开(公告)号：US07169238B2
公开(公告)日：2007-01-30
申请号：US10745107
申请日：2003-12-22
申请人： John B. Walenta , Charles F. Berndt , Thomas E. Clements , Steven M. Cross , Timothy M. Hoefft , Gary D. Keil
发明人： John B. Walenta , Charles F. Berndt , Thomas E. Clements , Steven M. Cross , Timothy M. Hoefft , Gary D. Keil
IPC分类号： C23C8/22
摘要： An article and method for forming an article having a hard-finished surface including a predetermined density of carbides to improve pitting and wear resistance and to significantly increase the overall life of the article. This method comprises selecting a carburizing grade material to form an article, carburizing the article to form a microstructure on at least one portion of the article having a predetermined density of carbides dispersed in the microstructure to a predetermined depth, quenching the article to form a hardened matrix dispersed with carbides and hard finishing the article to form the surface, the surface having at least approximately 20% by volume fraction carbides dispersed in the hardened matrix.
摘要翻译： 一种用于形成具有包括预定密度的碳化物的硬化表面以改善点蚀和耐磨性并且显着增加制品的整个寿命的制品的制品和方法。 该方法包括选择渗碳级材料以形成制品，使制品渗碳以在具有分散在微结构中的预定密度的碳化物的至少一部分上形成微结构至预定深度，淬火制品以形成硬化 基质用碳化物分散并硬化整理制品以形成表面，该表面具有分散在硬化基体中的至少约20体积％的碳化物。
-
公开(公告)号：US5601363A
公开(公告)日：1997-02-11
申请号：US255625
申请日：1994-06-09
申请人： Gary D. Keil , Wayne A. Supak , Sheryl A. Tipton
发明人： Gary D. Keil , Wayne A. Supak , Sheryl A. Tipton
CPC分类号： G01N27/18
摘要： A quench system cooling effectiveness meter including a reference sensor and a measurement sensor is disclosed. The reference sensor and the measurement sensor are included in a resistance bridge. The amount of heat that can be removed by the quench system from the measurement sensor is recorded to determine the cooling effectiveness of the quench system. The meter can be moved to different locations within the quench system to measure cooling variations within the system as a function of location.
摘要翻译： 公开了一种包括参考传感器和测量传感器的淬火系统冷却效能仪表。 参考传感器和测量传感器包括在电阻桥中。 记录骤冷系统从测量传感器中除去的热量，以确定淬火系统的冷却效果。 该仪表可以移动到淬火系统内的不同位置，以测量系统内的冷却变化作为位置的函数。
-
3.发明授权Automatic control of endothermic gas generators using low cost oxygen sensing probes 失效使用低成本氧传感探头自动控制吸热气体发生器
公开(公告)号：US5828582A
公开(公告)日：1998-10-27
申请号：US824108
申请日：1997-03-25
CPC分类号： B01D53/30
摘要： A control system for a gas generator is disclosed. The control system includes an automotive type oxygen sensor that produces a signal responsive to the oxygen content of a product gas. The automotive type oxygen sensor is connected to a controller and is installed in the gas generator so that the sensor tip is in the product gas, downstream of a first heat exchanger. Preferably, the installation of the automotive sensor is at a point where the product gas has been cooled to at least 1500.degree. F. at a rate of at least 4000.degree. F. The controller produces an output signal responsive to the oxygen sensor signal. A trim valve receives the controller output signal and responsively varies an input gas to vary the composition of the product gas.
摘要翻译： 公开了一种用于气体发生器的控制系统。 控制系统包括汽车型氧传感器，其产生响应于产品气体的氧含量的信号。 汽车式氧传感器连接到控制器并且安装在气体发生器中，使得传感器尖端位于第一热交换器下游的产品气体中。 优选地，汽车传感器的安装处于产品气体以至少4000°F的速率被冷却至至少1500°F的点。控制器响应于氧传感器信号产生输出信号。 调节阀接收控制器输出信号并响应于改变输入气体以改变产品气体的组成。
-
公开(公告)号：US5801296A
公开(公告)日：1998-09-01
申请号：US900684
申请日：1997-07-25
CPC分类号： G01N7/02 , G01N33/0054
摘要： A process for automated measurement of ammonia in a gas mixture containing ammonia gas and one or more water-insoluble gases includes providing a water reservoir adapted for supplying water therefrom through a first solenoid valve and providing a measurement vessel adapted for receiving water. The vessel is adapted for draining the water therefrom through a second solenoid valve. The vessel is also adapted for receiving the gas mixture through a third solenoid valve and purging the gas mixture from the vessel through a fourth solenoid valve. The vessel is adapted for maintaining the gas in the vessel and receiving water thereinto in an amount sufficient to dissolve the ammonia gas contained in the gas mixture, into the water, and allowing a differential pressure between the gas mixture and the water containing dissolved ammonia to be measured. The process also includes providing a measurement vessel adapted for allowing height of water within the vessel to be measured, providing means for measuring height of water within measurement vessel, and providing recording means for converting the measured height signal to an ammonia concentration value.
摘要翻译： 一种用于在含有氨气和一种或多种不溶于水的气体的气体混合物中自动测量氨的方法包括提供适于通过第一电磁阀从其中供水以及提供适于接收水的测量容器的储水器。 容器适于通过第二电磁阀将水从其排出。 容器还适于通过第三电磁阀接收气体混合物，并通过第四电磁阀从容器中清除气体混合物。 容器用于将气体保持在容器中并以足以将包含在气体混合物中的氨气溶解到水中的量接收水，并且允许气体混合物和含有溶解氨的水之间的压差 被测量。 该方法还包括提供适于允许测量容器内的水的高度的测量容器，提供用于测量测量容器内的水的高度的装置，以及提供用于将测量的高度信号转换为氨浓度值的记录装置。
-
公开(公告)号：US4921025A
公开(公告)日：1990-05-01
申请号：US348736
申请日：1989-04-13
CPC分类号： C21D1/78 , C23C8/22 , Y10T428/12576
摘要： A process for forming a carburized steel article includes carburizing a steel material containing not more than 0.10% silicon and less than 1.1% chromium to form an austenitic surface matrix having a high density of carbides dispersed therein. After quenching, the carburized steel article is characterized by an outer surface having a high ratio of carbides and is substantially free of intergranular oxides. As a result of preventing undesirable surface oxide formations and simultaneously providing a beneficial surface carbide structure, the bending fatigue strength, wear properties, and contact fatigue strength of articles such as gears, shafts, bearings and couplings are greatly enhanced.
摘要翻译： PCT No.PCT / US88 / 04470 Sec。 371日期：1989年4月13日 102（e）日期1989年4月13日PCT提交1988年12月14日PCT公布。 出版物WO89 / 05865 日本1982年6月29日。一种渗碳钢制品的制造方法，包括对含有不大于0.10％的硅和小于1.1％的铬的钢材进行渗碳，以形成其中分散有高密度碳化物的奥氏体表面基体。 淬火后，渗碳钢制品的特征在于具有高比例的碳化物的外表面，并且基本上不含晶间氧化物。 作为防止不希望的表面氧化物形成并同时提供有益的表面碳化物结构的结果，大大提高了诸如齿轮，轴，轴承和联轴器的制品的弯曲疲劳强度，磨损性能和接触疲劳强度。
-
公开(公告)号：US5928604A
公开(公告)日：1999-07-27
申请号：US106412
申请日：1998-06-29
申请人： Gary D. Keil , Fredric A. Woldow
发明人： Gary D. Keil , Fredric A. Woldow
摘要： The present automated system for carburizing a component decreases the energy used to manufacture the component. The operations of heating the component in a first heating apparatus, forging the component in a forge and transferring the hot forged component directly to a second heating apparatus having a controlled atmosphere, increasing the temperature of the component, absorbing carbon within the component to a predetermined surface carbon content and depth and directly transferring the component to a quenching chamber and quenching the component defining a heat treated component.
摘要翻译： 本发明的用于渗碳部件的自动化系统降低了用于制造部件的能量。 在第一加热装置中加热部件的操作，将部件锻造成锻造并将热锻件直接转移到具有受控气氛的第二加热装置，增加部件的温度，将部件内的碳吸收到预定的 表面碳含量和深度，并将组分直接转移到淬火室，并淬火限定热处理组分的组分。
-
7.发明授权Steel article having high hardness and improved toughness and process for forming the article 失效具有高硬度和改进韧性的钢制品以及用于形成制品的方法
公开(公告)号：US5910223A
公开(公告)日：1999-06-08
申请号：US978326
申请日：1997-11-25
申请人： Sheryl A. Tipton , Gary D. Keil
发明人： Sheryl A. Tipton , Gary D. Keil
CPC分类号： C23C8/22
摘要： A steel article is formed of a steel material containing from about 0.08 to about 0.35 carbon and is characterized by having a plurality of carbides dispersed on at least one pre-selected surface area of the article, with the surface carbides being dispersed within a predominantly lower bainitic matrix. A method for forming the steel article having high hardness and higher toughness includes carburizing the article at a temperature and for a period of time, in an atmosphere having a carbon potential, sufficient to form carbides and austenite on at least one preselected surface of the article, and then quenching the carburized article to a temperature below the Ar.sub.1 temperature and above the M.sub.s temperature of the steel material for a time sufficient to transform a major portion of the austenite in the preselected surface area microstructure to lower bainite. The steel article has an equivalent Knoop 500 gram maximum particle hardness of at least 900 and a Charpy unnotched, room temperature toughness of at least 50 Joules, thereby providing an article having both high hardness and improved toughness properties.
摘要翻译： 钢制品由含有约0.08至约0.35碳的钢材形成，其特征在于，在制品的至少一个预选表面积上分散有多个碳化物，其中表面碳化物分散在主要较低的 贝氏体矩阵。 用于形成具有高硬度和较高韧性的钢制品的方法包括在具有碳势的气氛中在一定温度和一段时间内对制品进行渗碳，足以在制品的至少一个预选表面上形成碳化物和奥氏体 然后将渗碳制品淬火至低于Ar1温度并高于钢材的Ms温度的温度足以将预选表面积微结构中的大部分奥氏体转变成较低的贝氏体。 钢制品具有至少900的等效的Knoop 500克最大颗粒硬度和至少50焦耳的Charpy无缺口的室温韧性，从而提供具有高硬度和改善的韧性的制品。
-
8.发明授权
公开(公告)号：US5767383A
公开(公告)日：1998-06-16
申请号：US799754
申请日：1997-02-11
CPC分类号： G01N7/02 , G01N33/0054
摘要： A process for automated measurement of ammonia in a gas mixture containing ammonia gas and one or more water-insoluble gases includes providing a water reservoir adapted for supplying water therefrom through a first solenoid valve and providing a measurement vessel adapted for receiving water. The vessel is adapted for draining the water therefrom through a second solenoid valve. The vessel is also adapted for receiving the gas mixture through a third solenoid valve and purging the gas mixture from the vessel through a fourth solenoid valve. The vessel is adapted for maintaining the gas in the vessel and receiving water thereinto in an amount sufficient to dissolve the ammonia gas contained in the gas mixture, into the water, and allowing a differential pressure between the gas mixture and the water containing dissolved ammonia to be measured. The process also includes providing a measurement vessel adapted for allowing height of water within the vessel to be measured, providing means for measuring height of water within measurement vessel, and providing recording means for converting the measured height signal to an ammonia concentration value.
摘要翻译： 一种用于在含有氨气和一种或多种不溶于水的气体的气体混合物中自动测量氨的方法包括提供适于通过第一电磁阀从其中供水以及提供适于接收水的测量容器的储水器。 容器适于通过第二电磁阀将水从其排出。 容器还适于通过第三电磁阀接收气体混合物，并通过第四电磁阀从容器中清除气体混合物。 容器用于将气体保持在容器中并以足以将包含在气体混合物中的氨气溶解到水中的量接收水，并且允许气体混合物和含有溶解氨的水之间的压差 被测量。 该方法还包括提供适于允许测量容器内的水的高度的测量容器，提供用于测量测量容器内的水的高度的装置，以及提供用于将测量的高度信号转换为氨浓度值的记录装置。
-
9.发明授权
公开(公告)号：US5324366A
公开(公告)日：1994-06-28
申请号：US742818
申请日：1991-08-09
CPC分类号： C23C8/20 , C21D9/0037 , C21D9/0062
摘要： A heat treat furnace system 20 for heat treating metal workpieces includes a rotary carburizing chamber 24 containing a carburizing atmosphere, a cooling chamber 40A or 40B adjacent the carburizing chamber 24, a gas barrier device 50 cooperating with the cooling chamber opening and the carburizing chamber outlet for impeding movement of atmosphere therethrough; and transfer mechanisms for operatively moving at least one selected workpiece from the carburizing chamber 24 to the cooling chamber 40A or 40B and vice versa, and from the cooling chamber 40B to the equalizing chamber 26 and vice versa. The carburizing chamber 24 has a circular rotatable hearth for supporting an array of workpieces, and an inlet for loading the workpieces into the carburizing chamber 24. The cooling chamber 40A or 40B also has means for providing a protective atmosphere within it. This arrangement provides a system that can perform different heat treat operations, either singly or simultaneously, and/or the same heat treat operation on different piece parts. For example, the system can simultaneously perform a process where carbides are desired and a process where carbides are not desired.
摘要翻译： 用于热处理金属工件的热处理炉系统20包括含有渗碳气氛的旋转渗碳室24，与渗碳室24相邻的冷却室40A或40B，与冷却室开口和渗碳室出口配合的阻气装置50 用于阻止大气通过其的运动; 以及用于将至少一个所选择的工件从渗碳室24可操作地移动到冷却室40A或40B，反之亦然，以及从冷却室40B到均化室26以及反之亦然的传送机构。 渗碳室24具有用于支撑工件阵列的圆形可旋转炉床和用于将工件装载到渗碳室24中的入口。冷却室40A或40B还具有用于在其内提供保护气氛的装置。 这种布置提供了可以单独地或同时地执行不同的热处理操作和/或在不同零件上进行相同的热处理操作的系统。 例如，系统可以同时进行需要碳化物的过程和不希望碳化物的过程。
-
公开(公告)号：US6024893A
公开(公告)日：2000-02-15
申请号：US104021
申请日：1998-06-24
摘要： Dissociated ammonia carrier gas used as a reference gas is obtained from an ammonia dissociator which also provides dissociated ammonia carrier gas to a nitriding furnace whereby the source of ammonia supply gas is the same. An oxygen probe is used to regulate the nitriding potential of a nitriding furnace and atmosphere for process control and high quality nitrided parts. The method further includes correlating the probe mV output signal to a nitriding potential and adjusting the ratio of ammonia supply gas to dissociated ammonia carrier gas at the inlet of the nitriding furnace.
摘要翻译： 用作参考气体的离解的氨载体气体是从氨解离器获得的，氨解离器还提供离解的氨载气到氮化炉，由此氨供气源是相同的。 氧气探头用于调节氮化炉的氮化电位和气氛，用于过程控制和高质量氮化部件。 该方法还包括将探针mV输出信号与氮化电位相关联并且调节氨氮供应气体与氮化炉入口处的解离氨载气的比率。
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.028 秒)
