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1. 发明申请

US20070012384A1 Process for producing tempered steel motor vehicle parts 审中-公开
标题翻译：生产回火钢机车部件的工艺
公开(公告)号：US20070012384A1
公开(公告)日：2007-01-18
申请号：US11488877
申请日：2006-07-17
申请人： Philip Betz , Christian Erdmann , Gustav Hanisch , Marcus Rieth
发明人： Philip Betz , Christian Erdmann , Gustav Hanisch , Marcus Rieth
IPC分类号： C21D8/02
CPC分类号： C21D1/18
摘要： A process for production of tempered steel support structures for motor vehicles of multiple steel parts including the steps deforming and/or trimming at least two soft-hardened steel parts, hardening the at least two steel parts, joining the steel parts to form a support structure, wherein the support structure is subject to annealing and total stress relieving in a combined thermal treatment only after the joining step.
摘要翻译：一种生产用于多个钢部件的机动车辆的回火钢支撑结构的方法，包括使至少两个软化钢部件变形和/或修整的步骤，硬化所述至少两个钢部件，连接钢部件以形成支撑结构其中，仅在接合步骤之后，在组合热处理中，支撑结构进行退火和总应力消除。

2. 发明授权

US6077475A Arrangement and process for the inductive hardening of profiled camshafts 失效
标题翻译：异形凸轮轴感应淬火的布置和工艺
公开(公告)号：US6077475A
公开(公告)日：2000-06-20
申请号：US62771
申请日：1998-04-20
申请人： Gustav Hanisch , Gerhard Haubold , Reiner Schmid
发明人： Gustav Hanisch , Gerhard Haubold , Reiner Schmid
IPC分类号： H05B6/10 , C21D1/10 , C21D1/42 , C21D9/30 , C21D1/06
CPC分类号： C21D9/30 , C21D1/10 , Y02P10/253
摘要： In a device for inductive hardening of profiled camshafts (especially those having valve cams and zero cams) during a hardening operation, the camshaft is surrounded by an inductor and is heated by means of a magnetic field emanating from the inductor. The inductor has several axial members and radial members through which the induction current flows during the hardening operation. Dynamo sheets provided on the axial branches focus the magnetic field in the radial direction. The position and the width of the dynamo sheets is adapted to the surface profile of the camshaft, so that the focusing is aimed at areas with a small diameter.
摘要翻译：在用于硬化操作期间的异型凸轮轴（特别是具有阀凸轮和零凸轮的凸轮轴）的感应淬火的装置中，凸轮轴由电感器包围，并且通过从电感器发出的磁场被加热。电感器具有几个轴向构件和径向构件，在硬化操作期间感应电流通过该轴向构件和径向构件流动。设置在轴向分支上的发电机片将径向的磁场聚焦。发电机的位置和宽度适应于凸轮轴的表面轮廓，使得聚焦瞄准具有小直径的区域。

3. 发明授权

US6153030A Method for the manufacture of hollow shafts 失效
标题翻译：空心轴的制造方法
公开(公告)号：US6153030A
公开(公告)日：2000-11-28
申请号：US362745
申请日：1999-07-29
申请人： Gustav Hanisch , Volker Keck
发明人： Gustav Hanisch , Volker Keck
IPC分类号： B21K1/06 , B23P15/00 , C21D9/08 , C21D9/28 , C23C8/20
CPC分类号： B21K1/06 , B21K1/063 , B23P15/00 , C21D9/08 , B23P2700/02 , C21D2221/00 , C21D9/28
摘要： A method for the production of hollow shafts from welded or seamlessly produced steel tubes having a maximum carbon content of 0.35% includes (1) carburizing a tube to a carbon content greater than 0.5%; (2) slowly cooling the carburized steel tube down from the process temperature, so that it undergoes no increase in hardness; (3) machining and/or non-cutting processing the carburized and soft steel tube to produce a workpiece blank; and (4) hardening the workpiece blank by local heating and quenching at desired points.
摘要翻译：从最大碳含量为0.35％的焊接或无缝钢管生产空心轴的方法包括（1）将管渗碳至大于0.5％的碳含量; （2）从加工温度缓慢冷却渗碳钢管，使其硬度不增加; （3）加工和/或非切削加工渗碳软管，生产工件坯料; 和（4）通过局部加热硬化工件坯料并在所需要的点淬火。

4. 发明授权

US6006429A Method of inductively hardening the cams of a camshaft 失效
标题翻译：感应硬化凸轮轴凸轮的方法
公开(公告)号：US6006429A
公开(公告)日：1999-12-28
申请号：US956650
申请日：1997-10-23
申请人： Gustav Hanisch , Christoph Duell
发明人： Gustav Hanisch , Christoph Duell
IPC分类号： B23P11/00 , C21D1/10 , C21D9/30 , F01L1/047 , F16H53/02 , B23P15/00
CPC分类号： F01L1/047 , B23P11/00 , C21D1/10 , C21D9/30 , F16H53/025 , B23P2700/02 , Y02P10/253 , Y10T29/49293 , Y10T74/2107
摘要： A built-up camshaft has cam discs which are secured to a tube under mechanical prestress, are of annular design, and are inductively hardened all the way around at a boundary layer on their outer periphery before they are secured to the tube. The hardening of the boundary layer is formed in such a manner that, due to the hardening, high residual compressive stresses (at least -450 N/mm.sup.2) are produced in an at least approximately 0.5 mm deep boundary zone near the surface in such a manner that, even after the cam discs are mounted on the tube, the superimposing residual tensile stresses in the boundary zone, induced by the joining, only partly compensate the original residual compressive stresses, i.e. there are still only residual compressive stresses (at least -150 N/mm.sup.2) in the boundary zone near the surface even after the pressing-on. Sufficiently high residual compressive stress in the boundary zone can be produced by effecting the inductive heating of the cam disc in two stages. Specifically, first of all the cam disc is loaded with a medium-frequency alternating magnetic field and thus the entire annular body of the cam disc is preheated to at least 250.degree. C. but below the transformation temperature. The cam disc is then loaded with a second alternating magnetic field changed in its intensity and/or its frequency relative to the alternating magnetic field of the first stage, as a result of which only the boundary zone is heated up to the transformation temperature or below it. After the quenching of the cam disc heated in such a manner, the high residual compressive stresses appearing a boundary zone of sufficient depth.
摘要翻译：集成凸轮轴具有凸轮盘，其在机械预应力下固定在管上，呈环形设计，并且在它们被固定到管之前在其外周边缘的边界处感应性地硬化。边界层的硬化是这样形成的，即由于硬化，在这样的表面附近的表面附近的至少约0.5mm深的边界区域中产生高残留压应力（至少为-450N / mm2）即使在凸轮盘安装在管上之后，由接合引起的边界区域中的叠加残余拉伸应力仅部分地补偿了原始的残余压应力，即仍然只有残余的压应力（至少为 - 150 N / mm2）。可以通过两个阶段实现凸轮盘的感应加热来产生边界区域中足够高的残余压缩应力。具体地说，首先，凸轮盘装载有中频交变磁场，因此凸轮盘的整个环形体被预热到至少250℃但低于转变温度。然后，相对于第一级的交变磁场，凸轮盘被加载其强度和/或其频率改变的第二交变磁场，结果仅将边界区域加热到相变温度或更低它。在以这种方式加热的凸轮盘的淬火之后，高残余压应力出现足够深度的边界区域。

5. 发明授权

US5737975A Built-up camshaft having induction-hardened cams and method of inductively hardening the cams 失效
标题翻译：具有感应淬火凸轮的组合凸轮轴和感应硬化凸轮的方法
公开(公告)号：US5737975A
公开(公告)日：1998-04-14
申请号：US458648
申请日：1995-06-02
申请人： Gustav Hanisch , Christoph Duell
发明人： Gustav Hanisch , Christoph Duell
IPC分类号： F01L1/04 , B23P11/00 , C21D1/10 , C21D9/30 , F01L1/047 , F16H53/02
CPC分类号： B23P11/00 , C21D1/10 , C21D9/30 , F01L1/047 , F16H53/025 , B23P2700/02 , Y02P10/253 , Y10T74/2101
摘要： A built-up camshaft has cam discs which are secured to a tube under mechanical prestress, are of annular design, and are inductively hardened all the way around at a boundary layer on their outer periphery before they are secured to the tube. The hardening of the boundary layer is formed such that, due to the hardening, high residual compressive stresses (at least -450 N/mm.sup.2) are produced in an at least approximately 0.5 mm deep boundary zone near the surface such that, even after the cam discs are mounted on the tube, the superimposing residual tensile stresses in the boundary zone, induced by the joining, only partly compensate the original residual compressive stresses, i.e. there are still only residual compressive stresses (at least -150 N/mm.sup.2) in the boundary zone near the surface. Sufficiently high residual compressive stress in the boundary zone are produced by effecting the inductive heating of the cam disc in two stages. First of all, the cam disc is loaded with a medium-frequency alternating magnetic field and thus the entire annular body of the cam disc is preheated to at least 250.degree. C. but below the transformation temperature. The cam disc is then loaded with a second alternating magnetic field changed in its intensity and/or its frequency relative to the alternating magnetic field of the first stage, as a result of which only the boundary zone is heated up to the transformation temperature or below it. After the quenching of the cam disc heated in such a manner, the high residual compressive stresses appear in a boundary zone of sufficient depth.
摘要翻译：集成凸轮轴具有凸轮盘，其在机械预应力下固定在管上，呈环形设计，并且在它们被固定到管之前在其外周边缘的边界处感应性地硬化。形成边界层的硬化使得由于硬化，在表面附近的至少约0.5mm深的边界区域中产生高的残留压应力（至少为-450N / mm2），使得即使在凸轮盘安装在管上，由接合引起的边界区域中的叠加残余拉伸应力仅部分补偿原始的残余压应力，即仍然只有残余压应力（至少为-150N / mm2）表面附近的边界区。通过两个阶段实现凸轮盘的感应加热来产生边界区域中足够高的残余压应力。首先，凸轮盘装载有中频交变磁场，因此凸轮盘的整个环形体预热到至少250℃但低于转变温度。然后，相对于第一级的交变磁场，凸轮盘被加载其强度和/或其频率改变的第二交变磁场，结果仅将边界区域加热到相变温度或更低它。在以这种方式加热的凸轮盘的淬火之后，高残余压应力出现在足够深度的边界区域中。

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