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1. 发明授权

US4897518A Method of monitoring induction heating cycle 失效
标题翻译：感应加热循环监测方法
公开(公告)号：US4897518A
公开(公告)日：1990-01-30
申请号：US284825
申请日：1988-12-14
申请人： George M. Mucha , Jonathan W. Alexander , George D. Pfaffmann , Richard H. McKelvey
发明人： George M. Mucha , Jonathan W. Alexander , George D. Pfaffmann , Richard H. McKelvey
IPC分类号： H05B6/06
CPC分类号： H05B6/06
摘要： A method of monitoring a heating cycle of an induction heating system wherein an inductor encircles a metal workpiece and an alternating current is applied through the inductor from a power supply during the heating cycle. This method comprising the steps of generating an analog signal representative of the voltage across the inductor, as the voltage varies during the heating cycle by changes in the electromagnetic characteristics of the workpiece as the workpiece is being heated; digitizing the voltage representative analog signal; creating a trace of the digitized voltage representative analog signal, with the trace being indicative of the electromagnetic characteristic of the workpiece as sensed by the inductor voltage during the heating cycle; and, comparing the created trace with a preselected pattern. This method can be performed with the workpiece moving through the inductor during said heating cycle and when the heating cycle includes a number of sub-cycles when the power supply is energizing the inductor separated by periods when the power supply is not energizing the inductor.
摘要翻译：一种监测感应加热系统的加热循环的方法，其中电感器环绕金属工件，并且在加热循环期间通过电源通过电感器施加交流电。该方法包括以下步骤：当加热循环期间电压随工件被加热时的电磁特性的变化而产生代表电感器两端的电压的模拟信号; 数字化电压代表性模拟信号; 创建数字化电压代表性模拟信号的轨迹，其中迹线表示在加热循环期间由电感器电压感测的工件的电磁特性; 并将所创建的跟踪与预选图案进行比较。该方法可以在工件在所述加热循环期间移动通过电感器，并且当电源在电源未被电感器通电时由电源激励电感而分离的周期包括多个子周期，来执行。

2. 发明授权

US4855551A Method and apparatus for hardening gears 失效
标题翻译：硬化齿轮的方法和装置
公开(公告)号：US4855551A
公开(公告)日：1989-08-08
申请号：US229697
申请日：1988-08-08
申请人： George M. Mucha , George D. Pfaffmann , Donald E. Novorsky
发明人： George M. Mucha , George D. Pfaffmann , Donald E. Novorsky
IPC分类号： C21D9/32
CPC分类号： C21D9/32
摘要： Method and apparatus for hardening the outwardly facing teeth surfaces of a gear is disclosed. First and second induction heating coils with power sources controlled by an appropriate microprocessor preheat the gear when in the first coil at precisely controlled cycles to generate an unstable circular band of high temperature positioned radially inwardly from the tips of the gear. Before the band can dissipate, the microprocessor actuates an appropriate drive to locate the gear in the second coil energized by an appropriate power source to impart a high skin temperature to the teeth. A liquid spray quench in the second coil is immediately actuated to effectively quench the gear. By sizing the cycles, the gear teeth are rapidly hardened at minimal power levels.
摘要翻译：公开了一种用于硬化齿轮朝外的齿表面的方法和装置。具有由适当的微处理器控制的动力源的第一和第二感应加热线圈在第一线圈中以精确控制的周期预热齿轮，以产生从齿轮的尖端径向向内定位的不稳定的高温环带。在带可以消散之前，微处理器致动适当的驱动器以将由适当电源供电的第二线圈中的齿轮定位，以赋予牙齿高的皮肤温度。立即启动第二线圈中的液体喷射淬火以有效地淬火齿轮。通过调整循环尺寸，齿轮齿以最小功率水平快速硬化。

3. 发明授权

US4749834A Method and apparatus of hardening gears by induction heating 失效
标题翻译：感应加热硬化齿轮的方法和装置
公开(公告)号：US4749834A
公开(公告)日：1988-06-07
申请号：US23564
申请日：1987-03-09
申请人： George M. Mucha , George D. Pfaffmann , Donald E. Novorsky
发明人： George M. Mucha , George D. Pfaffmann , Donald E. Novorsky
IPC分类号： C21D9/32 , H05B6/14
CPC分类号： C21D9/32
摘要： A method of hardening the radially, outwardly facing surfaces of a generally circular, toothed workpiece adapted to rotate about a central axis generally concentric with the outwardly facing surfaces whereby the extremities of the surfaces define an outer circle by the tips of the teeth of the workpiece. This type of workpiece is generally a gear. The method comprises the steps of providing first and second induction heating coils, locating the workpiece concentric in the first induction heating coil, energizing the first induction heating coil with a first alternating frequency current for a first time period, deenergizing the first coil with the workpiece therein for a first time delay period, again energizing this first induction heating coil with a second alternating frequency current for a second time period substantially less than the first time period, immediately transferring the workpiece concentrically into the second induction heating coil in a second delay time, then energizing the second induction heating coil with a radio frequency current for a third time period and immediately quenching the outer surfaces by quenching liquid sprayed against the surfaces while the workpiece is in the second induction heating coil. This process can be employed for hardening various convoluted surfaces where the area to be hardened, compared to the mass adjacent thereto, is substantially less than the area compared to adjacent mass at the protruding convolution, i.e. generally gear teeth.
摘要翻译：一种硬化大致圆形的齿形工件的径向向外表面的方法，其适于围绕大致与向外表面同心的中心轴线旋转，由此表面的末端由工件的齿的尖端限定外圆。这种类型的工件通常是齿轮。该方法包括以下步骤：提供第一和第二感应加热线圈，将工件同心地定位在第一感应加热线圈中，使第一感应加热线圈在第一时间段内以第一交流频率电流通电，使第一线圈与工件断电在第一时间延迟时段内，再次以第二交流频率电流对第一感应加热线圈施加基本上小于第一时间段的第二时间段，在第二延迟时间内立即将工件同心地转移到第二感应加热线圈中然后以第三时间段的射频电流对第二感应加热线圈通电，并且通过在工件处于第二感应加热线圈中时喷射到表面上的液体骤冷而立即淬火外表面。该方法可以用于硬化各种回旋表面，其中与其相邻的质量相比，要被硬化的区域与在突出卷绕处的相邻质量（即，通常为齿轮齿）相比大大小于该区域。

4. 发明授权

US4675488A Method for hardening gears by induction heating 失效
标题翻译：感应加热硬化齿轮的方法
公开(公告)号：US4675488A
公开(公告)日：1987-06-23
申请号：US878186
申请日：1986-06-25
申请人： George M. Mucha , Donald E. Novorsky , George D. Pfaffmann
发明人： George M. Mucha , Donald E. Novorsky , George D. Pfaffmann
IPC分类号： C21D9/32 , H05B6/14
CPC分类号： C21D9/32
摘要： A method of hardening the radially, outwardly facing surfaces of a generally circular, toothed workpiece adapted to rotate about a central axis generally concentric with the outwardly facing surfaces whereby the extremities of the surfaces define an outer circle by the tips of the teeth of the workpiece. This type of workpiece is generally a gear. The method comprises the steps of providing first and second induction heating coil, locating the workpiece concentric in the first induction heating coil, energizing the first induction heating coil with a first alternating frequency current for a first time period, deenergizing the first coil with the workpiece therein for a first time delay period, again energizing this first induction heating coil with a second alternating frequency current for a second time period substantially less than the first time period, immediately transferring the workpiece concentrically into the second induction heating coil in a second delay time, then energizing the second induction heating coil with a radio frequency current for a third time period and immediately quenching the outer surfaces by quenching liquid sprayed against the surfaces while the workpiece is in the second induction heating coil. This process can be employed for hardening various convoluted surfaces where the area to be hardened, compared to the mass adjacent thereto, is substantially less than the area compared to adjacent mass at the protruding convolution, i.e. generally gear teeth.
摘要翻译：一种硬化大致圆形的齿形工件的径向向外表面的方法，其适于围绕大致与向外表面同心的中心轴线旋转，由此表面的末端由工件的齿的尖端限定外圆。这种类型的工件通常是齿轮。该方法包括以下步骤：提供第一和第二感应加热线圈，将工件同心地定位在第一感应加热线圈中，用第一交变频率电流对第一感应加热线圈施加第一时间段，使第一线圈与工件断电在第一时间延迟时段内，再次以第二交流频率电流对第一感应加热线圈施加基本上小于第一时间段的第二时间段，在第二延迟时间内立即将工件同心地转移到第二感应加热线圈中然后以第三时间段的射频电流对第二感应加热线圈通电，并且通过在工件处于第二感应加热线圈中时喷射到表面上的液体骤冷而立即淬火外表面。该方法可以用于硬化各种回旋表面，其中与其相邻的质量相比，要被硬化的区域与在突出卷绕处的相邻质量（即，通常为齿轮齿）相比大大小于该区域。

5. 发明授权

US4625090A Apparatus for inductively heat treating workpiece bore walls 失效
标题翻译：用于感应加热处理工件孔壁的装置
公开(公告)号：US4625090A
公开(公告)日：1986-11-25
申请号：US720001
申请日：1985-04-04
申请人： George D. Pfaffmann , George M. Mucha
发明人： George D. Pfaffmann , George M. Mucha
IPC分类号： C21D1/10 , C21D9/14 , H05B6/10 , C21D1/18
CPC分类号： C21D1/10 , C21D9/14 , Y02P10/253
摘要： A method and apparatus of quench hardening to a desired depth the full axial extent of the wall surface, or selected portions of the wall surface, of an axially extending bore in an elongated workpiece wherein the bore has a selected uniform cross-sectional shape throughout the length thereof and is closed at one end, which method and apparatus involves providing an inductor with an outer shape generally matching but smaller than the cross-sectional shape of the bore to permit passage of the inductor through the bore, supporting the workpiece with the axis of the bore extending vertically and the open end facing downward, electrically energizing the inductor with a known frequency and at a selected power level, passing the energized inductor upwardly through the bore to inductively heat the wall surface of the bore progressively upwardly from the lower end thereof while progressively liquid quenching the wall surface immediately below the inductor during the upward passage thereof through the bore, and directing additional liquid quenching medium from the top of the inductor for impingement against the innermost end regions of the wall surface of the bore, at the limit of the upward passage of the inductor into the bore, to quench the innermost end regions of the bore wall surface above the reach of the progressive liquid quenching of such wall surface below the inductor when located in its limiting upward position in the bore.
摘要翻译：一种将细长工件中的轴向延伸的孔的壁表面或壁表面的选定部分的完整轴向范围淬火至所需深度的方法和装置，其中孔具有选定的均匀横截面形状并且在一端封闭，该方法和装置包括提供具有大致匹配但小于孔的横截面形状的外部形状的电感器，以允许电感器通过孔，以轴线支撑工件所述孔垂直延伸并且所述开口端面向下，以已知频率和选定的功率水平对所述电感器进行电激励，使所述通电电感器向上通过所述孔，以从所述下端向上逐渐加热所述孔的壁表面同时在其向上通过期间在电感器正下方逐渐液化淬火壁面并且从电感器的顶部引导另外的液体淬火介质，以在电感器向上通过孔的极限处撞击孔的壁表面的最内端部区域，以使淬火的最内端当位于孔内的限制向上位置时，孔壁表面的该区域在电感器下方的这种壁表面的逐渐液体淬火的范围之上。

6. 发明授权

US4785147A System for hardening gears by induction heating 失效
标题翻译：感应加热硬化齿轮系统
公开(公告)号：US4785147A
公开(公告)日：1988-11-15
申请号：US106537
申请日：1987-10-07
申请人： George M. Mucha , George D. Pfaffmann , Donald E. Novorsky
发明人： George M. Mucha , George D. Pfaffmann , Donald E. Novorsky
IPC分类号： C21D9/32 , H05B6/14
CPC分类号： C21D9/32
摘要： An apparatus for hardening the outwardly facing teeth surfaces of a gear is disclosed. First and second induction heating coils with power sources controlled by an appropriate microprocessor heat the gear when in the first coil at a precisely controlled cycle to generate an unstable, circular band of high temperature positioned radially inwardly from the tips of the gear. Before the band can dissipate, the microprocessor actuates an appropriate drive to locate the gear in the second coil energized by an appropriate power source to impart a high skin temperature to the teeth. A liquid spray quench in the second coil is immediately actuated to effectively quench the gear. By sizing the cycles, the apparatus is thus able to rapidly harden the gear teeth at minimal power levels.
摘要翻译：公开了一种用于硬化齿轮朝外的齿面的装置。具有由适当的微处理器控制的动力源的第一和第二感应加热线圈在第一线圈中以精确控制的周期加热齿轮，以产生从齿轮的尖端径向向内定位的不稳定的高温环形带。在带可以消散之前，微处理器致动适当的驱动器以将由适当电源供电的第二线圈中的齿轮定位，以赋予牙齿高的皮肤温度。立即启动第二线圈中的液体喷射淬火以有效地淬火齿轮。通过调整循环尺寸，装置能够以最小的功率水平快速地硬化齿轮齿。

7. 发明授权

US4894501A Method and apparatus for induction heating of gear teeth 失效
标题翻译：齿轮齿感应加热方法及装置
公开(公告)号：US4894501A
公开(公告)日：1990-01-16
申请号：US318347
申请日：1989-03-02
申请人： George D. Pfaffmann , Norbert R. Balzer , George M. Mucha , Donald E. Novorsky
发明人： George D. Pfaffmann , Norbert R. Balzer , George M. Mucha , Donald E. Novorsky
IPC分类号： C21D1/10 , C21D9/32
CPC分类号： C21D9/32 , C21D1/10 , Y02P10/253
摘要： A method and apparatus for induction heating and quench hardening of an undulating cylindrical surface, such as that defined by gear or sprocket teeth, provide a hardness pattern uniformly distributed to a controlled depth across and between the teeth surfaces by means of axial scanning of the workpiece relative to a single induction heating coil. A distinct final heating scanning process follows a preheating scanning process whereby preheating and final heating can be conducted at differing controlled axial velocities. Axial scanning of the workpiece repeatedly past a single inductor coil enables preheating and final heating of workpieces which cannot be axially shifted directly between separate inductor coils, such as internal planetary ring gears having a closed end or external gears having a flange or shoulder protruding radially from the cylindrical gear teeth surface.
摘要翻译：一种用于感应加热和淬火硬化的方法和装置，例如由齿轮或链轮齿限定的波浪形圆柱形表面，通过工件的轴向扫描提供均匀地分布到齿表面之间和之间的受控深度的硬度图案相对于单个感应加热线圈。独特的最终加热扫描过程遵循预热扫描过程，由此可以以不同的受控轴向速度进行预热和最终加热。反复通过单个电感线圈的工件的轴向扫描使得能够在不同的电感线圈之间直接轴向移动的工件的预热和最终加热，例如具有封闭端的内部行星环形齿轮或具有从圆柱齿轮齿面。

8. 发明授权

US4855556A Method and apparatus for hardening gears and similar workpieces 失效
标题翻译：用于硬化齿轮和类似工件的方法和装置
公开(公告)号：US4855556A
公开(公告)日：1989-08-08
申请号：US184588
申请日：1988-06-21
申请人： George M. Mucha , Donald E. Novorsky , George D. Pfaffmann
发明人： George M. Mucha , Donald E. Novorsky , George D. Pfaffmann
IPC分类号： C21D9/32 , H05B6/14
CPC分类号： C21D9/32
摘要： A method and apparatus for progressively hardening an elongated workpiece having an outer generally cylindrical surface concentric with the central axis including the concept of providing closely spaced first and second induction heating coils each having workpiece receiving openings generally concentric with the axis of the workpiece; energizing the first coil with a low frequency such as a frequency less than about 50 KHz; energizing the second coil with a high radio frequency, such as the frequency exceeding 100 KHz; causing relatively axial and progressive motion between the workpiece and the first and second closely spaced coils in a direction entering the first coil and exiting the second coil whereby the cylindrical surface is progressively first preheated by the first coil and then immediately final heated by the second coil; and, then immediately quenching the cylindrical surface as it passes from the second coil whereby the cylindrical surface is progressively preheated, heated and quench hardened as the workpiece is moved through the induction heating coil.
摘要翻译：一种用于逐渐硬化具有与中心轴同心的外部大致圆柱形表面的细长工件的方法和装置，包括提供紧密间隔的第一和第二感应加热线圈的概念，每个感应加热线圈具有大致与工件的轴线同心的工件接收开口; 以低频（例如小于约50KHz的频率）激励第一线圈; 以高频率（例如超过100KHz的频率）激励第二线圈; 在进入第一线圈并离开第二线圈的方向上在工件和第一和第二紧密间隔的线圈之间产生相对轴向和逐渐运动，由此圆柱形表面逐渐地被第一线圈预热，然后立即被第二线圈最终加热 ; 然后在圆柱形表面从第二线圈通过时立即淬火，由此当工件移动通过感应加热线圈时，圆柱形表面被逐渐预热，加热淬火硬化。

9. 发明授权

US4816633A Method of monitoring induction heating cycle 失效
标题翻译：感应加热循环监测方法
公开(公告)号：US4816633A
公开(公告)日：1989-03-28
申请号：US138561
申请日：1987-12-28
申请人： George M. Mucha , Jonathan W. Alexander , George D. Pfaffmann , Richard H. McKelvey
发明人： George M. Mucha , Jonathan W. Alexander , George D. Pfaffmann , Richard H. McKelvey
IPC分类号： H05B6/06
CPC分类号： H05B6/06
摘要： A method of monitoring a heating cycle of an induction heating system wherein an inductor encircles a metal workpiece and an alternating current is applied through the inductor from a power supply during the heating cycle. This method comprising the steps of generating an analog signal representative of the voltage across said inductor, as the voltage varies during said heating cycle by changes in the electromagnetic characteristics of the workpiece as the workpiece is being heated; digitizing the voltage representative analog signal; creating a trace of the digitized voltage representative analog signal, with the trace being indicative of the electromagnetic characteristic of the workpiece as sensed by the inductor voltage during the heating cycle; and, comparing the created trace with a preselected pattern. This method can be performed with the workpiece moving through the inductor during said heating cycle and when the heating cycle includes a number of sub-cycles when the power supply is energizing the inductor separated by periods when the power supply is not energizing the inductor.
摘要翻译：一种监测感应加热系统的加热循环的方法，其中电感器环绕金属工件，并且在加热循环期间通过电源通过电感器施加交流电。该方法包括以下步骤：当所述加热循环期间电压随着工件被加热时工件的电磁特性的变化而产生代表所述电感器两端的电压的模拟信号; 数字化电压代表性模拟信号; 创建数字化电压代表性模拟信号的轨迹，其中迹线表示在加热循环期间由电感器电压感测的工件的电磁特性; 并将所创建的跟踪与预选图案进行比较。该方法可以在工件在所述加热循环期间移动通过电感器，并且当电源在电源未被电感器通电时由电源激励电感而分离的周期包括多个子周期，来执行。

10. 发明授权

US4757170A Method and apparatus for induction heating gears and similar workpieces 失效
标题翻译：感应加热齿轮和类似工件的方法和装置
公开(公告)号：US4757170A
公开(公告)日：1988-07-12
申请号：US1624
申请日：1987-01-08
申请人： George M. Mucha , Donald E. Novorsky , George D. Pfaffmann
发明人： George M. Mucha , Donald E. Novorsky , George D. Pfaffmann
IPC分类号： C21D9/32 , H05B6/14
CPC分类号： C21D9/32
摘要： A method and apparatus for progressively hardening an elongated workpiece having an outer generally cylindrical surface concentric with the central axis including the concept of providing closely spaced first and second induction heating coils each having workpiece receiving openings generally concentric with the axis of the workpiece; energizing the first coil with a low frequency such as a frequency less than about 50 KHz; energizing the second coil with a high radio frequency, such as the frequency exceeding 100 KHz; causing relatively axial and progessive motion between the workpiece and the first and second closely spaced coils in a direction entering the first coil and exiting the second coil whereby the cylindrical surface is progressively first preheated by the first coil and then immediately final heated by the second coil; and, then immediately quenching the cylindrical surface as it passes from the second coil whereby the cylindrical surface is progressively preheated, heated and quench hardened as the workpiece is moved through the induction heating coil.
摘要翻译：一种用于逐渐硬化具有与中心轴同心的外部大致圆柱形表面的细长工件的方法和装置，包括提供紧密间隔的第一和第二感应加热线圈的概念，每个感应加热线圈具有大致与工件的轴线同心的工件接收开口; 以低频（例如小于约50KHz的频率）激励第一线圈; 以高频率（例如超过100KHz的频率）激励第二线圈; 在进入第一线圈并离开第二线圈的方向上在工件与第一和第二紧密间隔的线圈之间产生相对轴向和渐进运动，由此圆柱形表面逐渐地被第一线圈预热，然后由第二线圈立即最终加热 ; 然后在圆柱形表面从第二线圈通过时立即淬火，由此当工件移动通过感应加热线圈时，圆柱形表面被逐渐预热，加热淬火硬化。

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