公开(公告)号：US06627856B2

公开(公告)日：2003-09-30

申请号：US10025755

申请日：2001-12-26

申请人： Michel J. Korwin ,  Janusz Szymborski

发明人： Michel J. Korwin ,  Janusz Szymborski

IPC分类号： C23C824

CPC分类号： F27D9/00 ,  C21D1/767 ,  C21D1/84 ,  C23C8/24 ,  F25D17/02 ,  F27B17/0083 ,  F27D19/00 ,  Y10S165/912

摘要： Disclosed is a moveable heat exchanger for use with a high temperature chamber, such as for instance a nitriding furnace. The heat exchanger is between a first position external to the furnace, and a second position in which the heat exchanger projects substantially into the furnace through an opening in a wall surface of the furnace. In use, the heat exchanger is in the first position during a high temperature portion of a process and is in the second position during a cooling portion subsequent to the high temperature portion of the process. The heat exchanger sealingly engages the wall surface about its periphery to prevent the exchange of atmospheric components in either direction between the interior of the furnace and the outside.

摘要翻译： 公开了一种用于高温室的可移动热交换器，例如氮化炉。 热交换器位于炉外部的第一位置和第二位置之间，其中热交换器通过炉的壁表面中的开口基本上投入到炉中。 在使用中，热交换器在工艺的高温部分处于第一位置，并且在处理的高温部分之后的冷却部分期间处于第二位置。 热交换器围绕其周边密封地接合壁表面，以防止在炉内部和外部之间沿任一方向交换大气成分。

公开(公告)号：US06902635B2

公开(公告)日：2005-06-07

申请号：US10025503

申请日：2001-12-26

申请人： Michel J. Korwin ,  Janusz Szymborski

发明人： Michel J. Korwin ,  Janusz Szymborski

IPC分类号： C21D9/00 ,  C23C8/00 ,  C23C8/20 ,  C23C8/24 ,  F27B17/00 ,  F27D3/00 ,  F27D7/06 ,  C21D10/00

CPC分类号： C21D9/00 ,  C21D9/0018 ,  C23C8/00 ,  C23C8/20 ,  C23C8/24 ,  F27B2017/0091 ,  F27D3/00 ,  F27D2007/063

摘要： The present invention relates to a multi cell thermal processing unit. The thermal processing unit comprises an air tight common chamber containing an atmosphere other than ambient air. A loading cell is linked to the common chamber via a gas tight door for providing to and receiving from the common chamber a workpiece. Further, a preheating cell is linked to the common chamber via a heat insulating door. The preheating cell provides a substantially fixed temperature for activating the workpiece. Thermochemical processing of the workpiece is provided by a first and a second thermochemical processing cell each linked to the common chamber via a heat insulating door. The first thermochemical processing cell provides substantially fixed first thermochemical processing conditions for nitriding the workpiece. The second thermochemical processing cell provides substantially fixed second thermochemical processing conditions for post nitriding treatment of the workpiece. A cooling cell linked to the common chamber provides controlled cooling of the workpiece. The thermal processing unit according to the invention, wherein thermochemical processing cells are operated under substantially constant conditions considerably facilitates control functions for providing predetermined conditions. This allows a substantially more accurate control of the thermochemical processing conditions which is especially advantageous for reproducibly thermochemical processing workpieces using nitriding processes.

摘要翻译： 本发明涉及多单元热处理单元。 热处理单元包括包含除了环境空气之外的气氛的气密公共室。 装载单元通过气密门连接到公共室，用于向公共室提供工件和从公共室接收工件。 此外，预热单元经由隔热门连接到公共室。 预热池提供用于启动工件的基本上固定的温度。 工件的热化学处理由第一和第二热化学处理室提供，每个第一和第二热化学处理室通过隔热门连接到公共室。 第一热化学处理池提供用于氮化工件的基本固定的第一热化学处理条件。 第二热化学处理池为工件的后氮化处理提供基本上固定的第二热化学处理条件。 连接到公共室的冷却单元提供对工件的受控冷却。 根据本发明的热处理单元，其中热化学处理单元在基本恒定的条件下运行大大地有助于提供预定条件的控制功能。 这允许对热化学处理条件的实质上更精确的控制，这对于使用氮化方法的可再热的热化学处理工件是特别有利的。