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1. 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。

2. 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。

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

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。

6. 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。

7. 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。

8. 发明授权

US4675057A Method of heat treating using eddy current temperature determination 失效
标题翻译：使用涡流温度测定法进行热处理
公开(公告)号：US4675057A
公开(公告)日：1987-06-23
申请号：US834570
申请日：1986-02-28
申请人： George D. Pfaffmann , Donald E. Novorsky
发明人： George D. Pfaffmann , Donald E. Novorsky
IPC分类号： C21D1/54 , C21D11/00
CPC分类号： C21D11/005 , C21D1/54
摘要： A method and apparatus for the heat treating of quench hardenable ferrous alloy workpieces utilizing periodic eddy current excitation and reflection to determine the in-line cooling rate from the critical temperature of the workpiece material and comparing the in-line cooling rate against a standard rate for establishing acceptance or rejection of the quenched workpiece.
摘要翻译：一种利用周期性涡流激发和反射对淬火可硬化铁合金工件进行热处理的方法和装置，用于确定从工件材料的临界温度得到的在线冷却速率，并将在线冷却速率与标准速率进行比较确定淬火工件的接受或拒收。

9. 发明授权

US4867810A Method and apparatus for hardening cam lobes on a camshaft 失效
标题翻译：用于在凸轮轴上硬化凸轮凸角的方法和装置
公开(公告)号：US4867810A
公开(公告)日：1989-09-19
申请号：US201913
申请日：1988-06-03
申请人： Donald E. Novorsky
发明人： Donald E. Novorsky
IPC分类号： C21D1/10 , C21D9/30
CPC分类号： C21D9/30 , C21D1/10 , Y02P10/253
摘要： A method and apparatus for inductively heating in an inductor and quench hardening the finished ground cam lobes of steel camshafts to a uniform shallow pattern depth with minimal lobe surface deformation. The inductor is shaped to correspond to the contour of and encircle the individual cam lobes with a minimal uniform induction coupling gap therebetween of less than 0.1 inch, and it is energized with high intensity power at a high frequency greater than 200 KHz, with sufficient power to create a power density of at least 25 KW/inch.sup.2 at the surface of the cam lobe being heated in the inductor, for only a short heat time less than 1.0 second so as to effect the rapid inductive heating of the cam lobe surface to a uniform elevated temperature and uniform shallow depth therearound without causing unacceptable reheating and resultant drawing back or tempering of the previsouly hardened next adjacent cam lobe. The inductor is comprised of two complementary elongated copper segments which are normally interconnected at one end to form a conductor loop and conjointly provide a ring-shaped inductor element of the aforementioned contour for receiving the individual cam lobes in inductive heating position therein. The inductor segments are movable apart laterally outward from the camshaft a sufficient distance to permit both axial and rotative index movement of the camshaft relative to the inductor to position the other cam lobes of the camshaft individually in proper axial and rotative oriented position for encirclement and inductive heating by the inductor.
摘要翻译：一种用于感应加热电感器的方法和装置，并将钢凸轮轴的完成的接地凸轮凸角淬火硬化成均匀的浅图案深度，并具有最小的凸角表面变形。电感器被成形为对应于各个凸轮凸角的轮廓并且围绕各个凸轮凸角，其间具有小于0.1英寸的最小均匀的感应耦合间隙，并且以大于200KHz的高频率以高强度功率被激励，具有足够的功率以在电感器中加热的凸轮凸轮的表面上产生至少25KW /英寸2的功率密度，只需要小于1.0秒的短加热时间，以便实现凸轮凸角表面的快速感应加热到均匀的高温和均匀的浅深度，不会导致不可接受的再加热，并导致预先硬化的下一个相邻凸轮凸角的拉拔或回火。电感器由两个互补的细长铜段构成，这两个互补的细长铜段通常在一端互连以形成导体环，并且共同地提供上述轮廓的环形电感器元件，用于在其中感应加热位置中接收各个凸轮凸角。电感器段可从凸轮轴横向向外移动足够的距离，以允许凸轮轴相对于电感器的轴向和旋转指数运动，以将凸轮轴的另一个凸轮凸角单独地定位在适当的轴向和旋转取向位置，用于环绕和感应通过电感加热。

10. 发明授权

US4468010A Method and apparatus for quench hardening thin-walled, elongated workpieces 失效
标题翻译：用于淬火硬化薄壁细长工件的方法和设备
公开(公告)号：US4468010A
公开(公告)日：1984-08-28
申请号：US484559
申请日：1983-04-13
申请人： Donald E. Novorsky
发明人： Donald E. Novorsky
IPC分类号： C21D1/10 , C21D9/14
CPC分类号： C21D9/14 , C21D1/10 , Y02P10/253
摘要： A method and apparatus of quench hardening to a desired depth the inner surface of an axially extending bore in an elongated, thin-walled workpiece having an outer, axially extending surface wherein the bore has a selected, uniform cross-sectional shape, which method and apparatus involves providing an inductor with an outer shape generally matching, but smaller than, the cross-sectional shape of the bore, supporting the workpiece with the axis entending vertically, energizing the inductor with a known frequency and at a selected power level, moving the energized inductor downwardly through the bore to inductively heat the inner surface progressively while applying no fluid quench to the inner surface, letting the workpiece cool and then moving the inductor upwardly through the bore to progressively heat the inner surface while progressively liquid quenching the inner surface immediately below and after the progressive heating operation.
摘要翻译：一种在具有外部轴向延伸表面的细长的薄壁工件中淬火硬化到所需深度的轴向延伸孔的内表面的方法和装置，其中孔具有选定的均匀横截面形状，该方法和设备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，其支撑工件，其中轴线垂直缠绕，以已知频率和选定的功率电平激励电感器，使电感器向下通过孔，以逐渐感应加热内表面，同时不向内表面施加流体淬火，使工件冷却，然后将电感器向上移动穿过孔，以逐渐加热内表面，同时逐渐液体淬火内表面在逐渐加热操作之后和之后。

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