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1. 发明授权

US06765181B1 Inductor assembly 失效
标题翻译：电感器总成
公开(公告)号：US06765181B1
公开(公告)日：2004-07-20
申请号：US10663423
申请日：2003-09-16
申请人： Madhu S. Chatterjee , Byron L. Taylor , Micah Robert Black
发明人： Madhu S. Chatterjee , Byron L. Taylor , Micah Robert Black
IPC分类号： H05B640
CPC分类号： H05B6/14 , H05B6/40
摘要： An apparatus and process are provided for induction heat treatment of electrically conductive workpieces. The inductor assembly is formed from a single piece inductor that utilizes an electrically non-conductive top, side and bottom frames to hold flux concentrators in place over the sides of the inductor. Flux concentrators can be changed by unfastening the frame members, removing the existing flux concentrators, inserting new flux concentrators, and fastening the frame members. One or more of the frame members may serve as a receiving chamber for supply of a quench medium to an induction heated workpiece positioned in an opening in the inductor.
摘要翻译：提供了一种用于导电工件的感应热处理的装置和工艺。电感器组件由单片式电感器形成，该电感器利用不导电的顶部，侧面和底部框架来将电流集中器保持在电感器侧面的适当位置。可以通过松开框架构件，去除现有的流量聚集器，插入新的流量聚集器和紧固框架构件来改变通量集中器。一个或多个框架构件可以用作接收室，用于将淬火介质供应到位于电感器的开口中的感应加热工件。

2. 发明授权

US5234201A Contour hardening apparatus 失效
标题翻译：轮廓硬化装置
公开(公告)号：US5234201A
公开(公告)日：1993-08-10
申请号：US906185
申请日：1992-06-29
申请人： Madhu S. Chatterjee , William I. Stuehr
发明人： Madhu S. Chatterjee , William I. Stuehr
IPC分类号： C21D1/10 , C21D9/32
CPC分类号： C21D9/32 , C21D1/10 , Y02P10/253
摘要： A contour hardening apparatus for flat steel work pieces, such as gears, having convoluted surfaces around their circumferences, the apparatus including an annular inductor housing, a mandrel in the center of the inductor housing, and air bearing rotatably mounting the work piece on the mandrel, an air nozzle on the inductor housing aimed at the convoluted surfaces and operative in an ON condition to direct a jet of compressed air against the convoluted surfaces to develop on the work piece a first turning moment in a first direction to rotate the work piece in the first direction during heating, an oil manifold on the inductor housing supplied with oil under pressure and including a first plurality of oil nozzles in the plane of the work piece each oriented to direct a jet of oil at the convoluted surfaces to develop on the work piece a second turning moment opposite the first turning moment, and means to supply the oil manifold with oil under pressure when the air nozzle is in an OFF condition. The jets of oil from the first plurality of nozzles stop the rotation of the work piece at the onset of oil quench.
摘要翻译：一种用于扁平钢工件的轮廓硬化装置，例如齿轮，其周围具有回旋表面，该装置包括环形电感器壳体，电感器壳体中心的心轴和可旋转地将工件安装在心轴上的空气轴承所述电感器壳体上的空气喷嘴朝向所述回旋表面并且在接通状态下操作以将压缩空气的喷射流引导到所述回旋表面，以在所述工件上沿第一方向在所述第一方向上产生第一转动，以使所述工件在在加热期间的第一方向，在电感器壳体上的油歧管，其在压力下被供应油并且包括在工件的平面中的第一多个油喷嘴，每个油喷嘴定向成在回旋表面处引导油喷射以在工件与第一转矩相反的第二转向力，并且当空气喷嘴处于关闭状态时向油歧管供油的装置条件。来自第一多个喷嘴的油喷射在油淬的开始时停止工件的旋转。

3. 发明授权

US4639279A Single frequency induction hardening process 失效
标题翻译：单频感应淬火工艺
公开(公告)号：US4639279A
公开(公告)日：1987-01-27
申请号：US797707
申请日：1985-11-13
申请人： Madhu S. Chatterjee
发明人： Madhu S. Chatterjee
IPC分类号： C21D1/10 , C21D9/32 , C21D9/24
CPC分类号： C21D1/10 , C21D9/32 , Y02P10/253 , Y10T29/49462
摘要： The teeth and roots of a gear are contour hardened by induction at a single work station with a single solid state power supply. The inductor or coil is full-faced and encircles the gear during the preheat and final heat steps of the process. The power supply energizes the inductor with alternating current of a single frequency in the general range of 50-100 kHz according to a predetermined schedule of on-time and power level. The supply of current to the inductor is such that the time required for the supplied power level to achieve the scheduled power level in the final heat step is no more than approximately one-third of the scheduled final heat time.
摘要翻译：齿轮的齿和根通过在具有单个固态电源的单个工作站上感应而轮廓硬化。电感器或线圈是全面的，并在该过程的预热和最终加热步骤期间环绕齿轮。根据预定的导通时间和功率级别，电源在50-100kHz的一般范围内通过单个频率的交流电激励电感。向电感器提供电流使得所提供的功率电平达到最终加热步骤中的预定功率电平所需的时间不超过预定的最后加热时间的大约三分之一。

4. 发明授权

US5428208A Method of induction case hardening a rack bar 失效
标题翻译：感应箱淬火方法
公开(公告)号：US5428208A
公开(公告)日：1995-06-27
申请号：US340782
申请日：1994-11-17
申请人： Madhu S. Chatterjee , William I. Stuehr
发明人： Madhu S. Chatterjee , William I. Stuehr
IPC分类号： C21D1/10 , C21D9/32 , H05B6/40
CPC分类号： H05B6/40 , C21D9/32 , C21D1/10 , Y02P10/253
摘要： A method of case hardening a steering gear rack bar having a plain cylindrical barrel portion and an integral toothed portion on which are formed a plurality of rack gear teeth each having a predetermined helix angle relative to a longitudinal centerline of the rack bar. The method includes forming an induction coil having a linear section and a spiral section with a helix angle equal to the helix angle of the rack gear teeth, locating the rack bar inside the induction coil with the barrel portion thereof juxtaposed the linear section of the induction coil and with the spiral section of the induction coil surrounding the toothed portion, rotating the rack bar about its longitudinal centerline while passing alternating electric current through the coil to concurrently induction heat both the barrel portion and the toothed portion, and quenching the rack bar after the alternating current is turned off.
摘要翻译：一种用于对具有平坦圆筒形部分和整体齿形部分的转向齿条杆进行表面硬化的方法，其上形成有相对于齿条的纵向中心线具有预定螺旋角的多个齿条齿。该方法包括形成具有线性部分的感应线圈和具有等于齿条齿的螺旋角的螺旋角的螺旋部分，将齿条定位在感应线圈内部，其筒部分并入感应线的直线部分线圈，并且包围有齿部分的感应线圈的螺旋部分，使齿条围绕其纵向中心线旋转，同时使交流电流通过线圈，同时感应加热筒体部分和齿部，并且在齿条之后淬火交流电被关闭。

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