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1. 发明授权

US6024893A Method for controlling a nitriding furnace 失效
标题翻译：控制氮化炉的方法
公开(公告)号：US6024893A
公开(公告)日：2000-02-15
申请号：US104021
申请日：1998-06-24
申请人： Gary D. Keil , Sheryl A. Tipton , Philip A. Newman , Paul E. Hoernlein
发明人： Gary D. Keil , Sheryl A. Tipton , Philip A. Newman , Paul E. Hoernlein
IPC分类号： C23C8/30 , C21D1/76 , C23C8/24 , F27D19/00 , C01B3/04
CPC分类号： F27D19/00 , C23C8/24
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。

2. 发明授权

US5722772A Quench cooling effectiveness apparatus for continous monitoring 失效
标题翻译：淬火冷却效果仪器进行连续监测
公开(公告)号：US5722772A
公开(公告)日：1998-03-03
申请号：US584029
申请日：1996-01-11
申请人： Gary D. Keil , Wayne A. Supak , Sheryl A. Tipton
发明人： Gary D. Keil , Wayne A. Supak , Sheryl A. Tipton
IPC分类号： G01K1/08 , C21D1/00 , C21D1/55 , C21D1/56 , C21D1/62 , C21D11/00 , G01K13/00 , G01K17/00 , G01N25/18 , G01N25/00
CPC分类号： G01N25/18 , C21D1/62 , C21D11/005 , C21D1/56
摘要： A quench cooling effectiveness apparatus for continuous monitoring of a heat treat quench system and method of operation is provided. The apparatus preferably includes first and second heat conductive sheaths having temperature sensors installed therein. The heat conductive sheaths are thermally insulated from each other with a heat resistive sheath. A microprocessor is preferably connected to said sensors, applies a known current to one sensor, and calculates a cooling effectiveness of the heat treat quench system from the temperature of the two sensors and the known applied current.
摘要翻译：提供了一种用于连续监测热处理淬火系统和操作方法的淬火冷却效果装置。该装置优选地包括其中安装有温度传感器的第一和第二导热护套。导热护套通过耐热护套彼此绝热。微处理器优选地连接到所述传感器，向一个传感器施加已知的电流，并且根据两个传感器的温度和已知的施加电流计算热处理骤冷系统的冷却效果。

3. 发明授权

US5407180A Heat treat furnace system for performing different carburizing processes simultaneously 失效
标题翻译：同时进行不同渗碳工艺的热处理炉系统
公开(公告)号：US5407180A
公开(公告)日：1995-04-18
申请号：US38311
申请日：1993-03-29
申请人： Gary D. Keil , Loren D. Thompson, deceased
发明人： Gary D. Keil , Loren D. Thompson, deceased
IPC分类号： C21D1/74 , C21D9/00 , C23C8/20 , F27B9/04 , F27B9/16
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。

4. 发明授权

US5187670A Control system for scheduling parts in a heat-treating process 失效
标题翻译：用于在热处理过程中调度零件的控制系统
公开(公告)号：US5187670A
公开(公告)日：1993-02-16
申请号：US609359
申请日：1990-11-05
申请人： Gary D. Keil , Gregory S. Holloway
发明人： Gary D. Keil , Gregory S. Holloway
IPC分类号： C21D1/00 , C21D1/06 , C21D9/00 , C21D11/00 , C23C8/22 , G05B19/418 , G05D23/19
CPC分类号： G05B19/41865 , C21D11/00 , C21D9/00 , G05D23/1917 , Y02P90/20
摘要： A control system for heat-treating parts in a furnace structure is provided. A plurality of processing chambers, each having at least one part position, are adapted to simultaneously process a plurality of parts each for a respective predetermined processing time. A memory device stores first records representing processing times associated with each of the parts within each processing chamber, second records representing a desired processing path associated with each part through at least one processing chamber, and third records representing the number and location of occupied part positions within each processing chamber. A computerized control center calculates desired processing times associated with at least one processing chamber for a new part to be processed in the processing chamber. Additionally, the computerized control center determines an entrance time for the new part to enter the furnace structure, in response to the first, second, and third records, and to the calculated desired processing times.
摘要翻译：提供了一种用于在炉结构中热处理部件的控制系统。每个具有至少一个部分位置的多个处理室适于同时处理多个部件，每个部件各自预定的处理时间。存储器设备存储表示与每个处理室内的每个部件相关联的处理时间的第一记录，表示通过至少一个处理室与每个部件相关联的期望处理路径的第二记录，以及表示占用部件位置的数量和位置的第三记录在每个处理室内。计算机化控制中心计算与处理室中待处理的新部件的至少一个处理室相关联的期望处理时间。此外，计算机化控制中心响应于第一，第二和第三记录以及计算出的所需处理时间来确定新部件进入炉结构的入口时间。

5. 发明授权

US4763880A Rotary hearth multi-chamber, multi-purpose furnace system 失效
标题翻译：旋转炉床多室多功能炉系统
公开(公告)号：US4763880A
公开(公告)日：1988-08-16
申请号：US33971
申请日：1987-04-03
申请人： John W. Smith , Gary D. Keil
发明人： John W. Smith , Gary D. Keil
IPC分类号： C23C8/22 , C21D20060101 , C21D1/00 , C21D9/00 , C23C8/20 , F27B9/02 , F27B9/06 , F27B9/16 , F27D7/04
CPC分类号： C21D9/0037 , C23C8/20 , F27B9/02 , F27B9/068 , F27B9/16 , F27D7/04
摘要： A continuous carburizing furnace system is disclosed having at least two series-connected rotary furnaces. The rotary carburizing furnace, a rotary equalizing furnace, and a rotary diffusion furnace which may be included between the carburizing and equalizing furnaces, allow trays of parts to be discharged from any position at any time by suitable rotation of their hearths, thus allowing parts with different cycle times to be run simultaneously in each rotary furnace. Each donut-shaped rotary furnace includes one or more captive chain type pusher mechanisms mounted in vertical fashion within a central area or hole, and the rotary carburizing furnace is multi-zoned and includes wall-mounted fans for uniform circumferential control of the gaseous atmosphere within its annular chambers. Two different quenching apparatuses and a slow cool assembly adjacent multiple outlets of the equalizing furnace permit the use of different cooling/quenching processes on selected parts, and parts may also be returned from the slow cool assembly to the equalizing furnace for reheating.
摘要翻译：公开了一种具有至少两个串联连接的旋转炉的连续渗碳炉系统。旋转渗碳炉，旋转均质炉和可包含在渗碳和均质炉之间的旋转扩散炉允许托盘从任何位置通过其炉床的适当旋转从任何位置排出，从而允许部件与在每个旋转炉中同时运行不同的循环时间。每个环形旋转炉包括在中心区域或孔内以垂直方式安装的一个或多个固定式链式推进器机构，并且旋转渗碳炉是多区域的，并且包括壁挂式风扇，用于均匀地周向控制气态气氛其环形室。两个不同的淬火装置和邻近均压炉的多个出口的缓慢冷却组件允许在所选择的部件上使用不同的冷却/淬火工艺，并且部件也可以从慢冷组件返回到均化炉以进行再加热。

6. 发明授权

US07169238B2 Carbide method and article for hard finishing resulting in improved wear resistance 有权
标题翻译：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
CPC分类号： C21D1/06 , C21D1/19 , C21D1/20 , C21D1/25 , 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。

7. 发明授权

US5828582A Automatic control of endothermic gas generators using low cost oxygen sensing probes 失效
标题翻译：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
申请人： Randall R. Conklen , Gary D. Keil , Paul R. Luebbers
发明人： Randall R. Conklen , Gary D. Keil , Paul R. Luebbers
IPC分类号： C10K3/00 , B01D53/30 , C23C8/20 , G05D11/08 , G05D21/00 , G01N27/26 , G05D7/00
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。

8. 发明授权

US5928604A Automated system for carburizing a component 失效
标题翻译：用于渗透部件的自动化系统
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
IPC分类号： C21D1/78 , C23C8/20 , C21D1/62
CPC分类号： C23C8/20 , C21D1/78
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。

9. 发明授权

US5910223A Steel article having high hardness and improved toughness and process for forming the article 失效
标题翻译：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
IPC分类号： C23C8/22 , C22C38/02
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。

10. 发明授权

US5767383A Apparatus for automated measurement of ammonia concentration in a gas mixture 失效
标题翻译：用于自动测量气体混合物中氨浓度的装置
公开(公告)号：US5767383A
公开(公告)日：1998-06-16
申请号：US799754
申请日：1997-02-11
申请人： Gary D. Keil , Ronald G. Morgan , Sheryl A. Tipton , Wayne A. Supak
发明人： Gary D. Keil , Ronald G. Morgan , Sheryl A. Tipton , Wayne A. Supak
IPC分类号： G01N31/00 , G01N1/00 , G01N7/02 , G01N33/00 , G01N7/00
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。

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