公开(公告)号：US06709629B2

公开(公告)日：2004-03-23

申请号：US10108770

申请日：2002-03-28

申请人： Hidetoshi Juryozawa ,  Keiji Yokose ,  Fumitaka Abukawa ,  Jun Takahashi ,  Hisashi Ebihara

发明人： Hidetoshi Juryozawa ,  Keiji Yokose ,  Fumitaka Abukawa ,  Jun Takahashi ,  Hisashi Ebihara

IPC分类号： C21D162

CPC分类号： C23C8/20 ,  F27B5/04 ,  F27B5/08 ,  F27B5/14 ,  F27B5/18 ,  F27B9/045 ,  F27B9/34 ,  F27B2005/166 ,  F27D1/0009 ,  F27D11/00 ,  F27D2007/066 ,  F27D2009/0016 ,  G01N27/12

摘要： A vacuum heat treatment furnace comprising a furnace shell, a casing arranged in an inner side of the furnace shell, a heat insulating layer consisting of a thick plate-like alumina-silica series ceramic fiber blanket and a thin plate-like alumina series ceramic material arranged in an inside of the casing, and a heater arranged in a heating room surrounded by the heat insulating layer. A method of and apparatus for measuring a carbon concentration in an atmosphere in a treating room having a reduced pressure, wherein a carbon concentration measuring body is transferred from an external portion of a furnace shell of a heat treatment furnace into the treating room within the furnace shell, the carbon concentration measuring body is reacted with the atmosphere in the treating room for a predetermined time, the carbon concentration measuring body is gradually cooled for a predetermined time, and an amount of carbon in the carbon concentration measuring body is measured in the atmospheric pressure at a room temperature.

摘要翻译： 一种真空热处理炉，包括炉壳，布置在炉壳内侧的壳体，由厚板状氧化铝 - 二氧化硅系陶瓷纤维毯和薄板状氧化铝系陶瓷材料构成的隔热层 布置在壳体的内部，以及布置在由绝热层包围的加热室中的加热器。 一种用于测量具有减压的处理室中的气氛中的碳浓度的方法和装置，其中将碳浓度测量体从热处理炉的炉壳的外部转移到炉内的处理室中 将碳浓度测定体与处理室内的气氛反应规定时间，将碳浓度测定体逐渐冷却规定时间，在大气中测定碳浓度测定体的碳量 室温下的压力。

公开(公告)号：US06620374B2

公开(公告)日：2003-09-16

申请号：US09681757

申请日：2001-05-31

申请人： Dean P. Stefanac ,  Thomas J. Bowers ,  Donald H. Wiseman ,  William C. Weller

发明人： Dean P. Stefanac ,  Thomas J. Bowers ,  Donald H. Wiseman ,  William C. Weller

IPC分类号： C21D162

CPC分类号： C21D1/667 ,  C21D1/42 ,  C21D1/63 ,  C21D9/0018 ,  C21D9/0037 ,  C21D9/0093 ,  Y02P10/253

摘要： A system and method for inductively heating and then quench hardening a portion of a workpiece, such as a several threads of a screw or bolt are disclosed. The system includes a conveyor system having a rotary conveyor for separating, aligning, and transporting each of the workpieces in aligned succession through an induction heater positioned about the rotary conveyor to heat-treat at least a portion of each of the workpieces. A sensor determines whether a workpiece is heat-treated to a minimum temperature and causes an ejector to separate heat-treated workpieces that have reached the minimum temperature from heat-treated workpieces that have failed to reach the minimum temperature. The separated workpieces are then quenched in a tank & separately removed automatically.

公开(公告)号：US06174389B1

公开(公告)日：2001-01-16

申请号：US09375628

申请日：1999-08-17

申请人： Kenneth R. Mann

发明人： Kenneth R. Mann

IPC分类号： C21D162

CPC分类号： C21D1/667 ,  C21D9/0025 ,  C21D2221/00

摘要： An apparatus and method for excluding specific areas of a workpiece from quenching during a heat treat process. A workpiece, having preselected areas to be quenched, is positioned in a manner so that quench sprays are aimed toward the surface to be quenched. The area to be excluded from the quench is protected by a shroud, and steam is forced under the shroud during the quenching operation. Steam pressure within the shroud is maintained at a pressure sufficient to prevent the quench media from passing through a sealed edge of the shroud. The steam has a temperature sufficient to prevent a sudden drop in the workpiece temperature in the area protected from the quench media.

摘要翻译： 一种用于在热处理过程中排除工件的特定区域淬火淬火的装置和方法。 具有预选区域被淬火的工件以这样的方式定位，使得淬火喷雾瞄准要淬火的表面。 排除淬火的区域由护罩保护，在淬火操作期间，蒸汽被迫在护罩下方。 护罩内的蒸汽压力保持在足以防止淬火介质通过护罩密封边缘的压力。 蒸汽的温度足以防止在被淬火介质保护的区域内工件温度突然下降。