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1. 发明授权

US5524020A Vacuum furnace with movable hot zone 失效
标题翻译：真空炉具有可移动热区
公开(公告)号：US5524020A
公开(公告)日：1996-06-04
申请号：US294448
申请日：1994-08-23
申请人： Suresh C. Jhawar , John K. Grier , Brian K. Grier , Ardishir Rashidi
发明人： Suresh C. Jhawar , John K. Grier , Brian K. Grier , Ardishir Rashidi
IPC分类号： C21D1/767 , C21D1/773 , F27B5/16 , F27D1/18 , F27D7/06
CPC分类号： F27B5/16 , C21D1/773 , F27D1/1858 , C21D1/767
摘要： A high temperature vacuum heat treating furnace has a hot zone, including heating elements and thermal insulation, which is movable between a heating location at least partly surrounding a load space and a cooling location remote from the load space. A cooling gas plenum around the hot zone in the heating location can eject cooling gas toward a load in the load space after the hot zone is retracted. Cooling rates approximately comparable to a furnace operable at four bar pressure can thereby be obtained in a furnace rated for no more than two bar internal pressure.
摘要翻译：高温真空热处理炉具有热区，包括加热元件和绝热，其可在至少部分地围绕负载空间的加热位置与远离负载空间的冷却位置之间移动。在加热位置周围的热区周围的冷却气体加压室可以在热区缩回之后将冷却气体朝着负载空间中的负载喷出。因此，可以在不超过2巴内压的炉中获得大约相当于在四巴压力下操作的炉的冷却速度。

2. 发明授权

US5497394A Electric heater element support 失效
标题翻译：电加热元件支撑
公开(公告)号：US5497394A
公开(公告)日：1996-03-05
申请号：US308758
申请日：1994-09-19
申请人： Suresh C. Jhawar , John K. Grier , Brian K. Grier
发明人： Suresh C. Jhawar , John K. Grier , Brian K. Grier
IPC分类号： H05B3/66
CPC分类号： H05B3/66
摘要： A vacuum furnace has a heating chamber heated by metal strip electric heater elements. The elements have insulated mechanical support between their ends to hold them in position in the furnace. Support is provided by a ceramic post having an internal thread in an outer end threaded onto a rod secured to a portion of the furnace. A transverse member at an inner end of the post includes a straight surface normal to the length of the post for engaging the heater element. The heater element is compliantly connected to the straight surface. One embodiment of heater element support is in the form of a T-shaped ceramic post having an internal thread in the leg of the T and a ceramic crossbar having a straight surface normal to the length of the post for receiving the heater element. Another embodiment has a ceramic post having an internal thread in the outer end of the post and a metallic crossbar having a straight surface normal to the length of the post for receiving a heater element.
摘要翻译：真空炉具有由金属带电加热器元件加热的加热室。这些元件在其端部之间具有绝缘的机械支撑以将它们保持在炉中的适当位置。支撑件由陶瓷柱提供，该陶瓷柱的外螺纹内螺纹固定在熔炉的一部分上的杆上。在柱的内端处的横向构件包括垂直于用于接合加热器元件的柱的长度的直表面。加热器元件顺从地连接到直表面。加热器元件支撑件的一个实施例是T型陶瓷柱的形式，其具有在T的腿部中的内螺纹，陶瓷横梁具有垂直于用于接收加热器元件的柱的长度的直表面。另一实施例具有陶瓷柱，其在柱的外端具有内螺纹，金属横杆具有垂直于柱的长度的直表面，用于接收加热元件。

3. 发明授权

US5267257A Vacuum furnace with convection heating and cooling 失效
标题翻译：真空炉采用对流加热和冷却
公开(公告)号：US5267257A
公开(公告)日：1993-11-30
申请号：US744976
申请日：1991-08-14
申请人： Suresh C. Jhawar , John K. Grier , Michael T. Mercer
发明人： Suresh C. Jhawar , John K. Grier , Michael T. Mercer
IPC分类号： F27B5/16 , F27B15/14 , F27B15/16 , F27D7/06
CPC分类号： F27B5/16
摘要： A high temperature vacuum furnace has a circulating path external to the heating chamber for facilitating inert gas circulation during initial convection heating of a high temperature vacuum furnace. The heating chamber of the furnace and a surrounding cooling gas introduction chamber are within a metallic convection shroud in such a way that the space in between defines a heating gas circulation chamber for circulating heated inert gas during low temperature heating for accelerating the heating-up of the hot zone to its normal operating temperatures. Once the hot zone has reached a selected temperature, the inert gas is pumped out and the furnace then operates in a vacuum. Quenching is achieved by introducing cooling gas into the heating chamber via nozzles through the heating chamber walls.
摘要翻译：高温真空炉具有在加热室外部的循环路径，用于在高温真空炉的初始对流加热期间促进惰性气体循环。炉的加热室和周围的冷却气体引入室在金属对流罩内，其间的空间限定了用于在低温加热期间循环加热的惰性气体的加热气体循环室，以加速热区达到其正常工作温度。一旦热区达到选定的温度，则将惰性气体抽出，然后炉子在真空中运行。通过经由加热室壁的喷嘴将冷却气体引入加热室来实现淬火。

4. 发明授权

US4771166A Electric furnace heater mounting 失效
标题翻译：电炉加热器安装
公开(公告)号：US4771166A
公开(公告)日：1988-09-13
申请号：US82049
申请日：1987-08-05
申请人： Dane T. McGuire , John K. Grier , Harold M. Bone , Suresh C. Jhawar , Michael T. Mercer
发明人： Dane T. McGuire , John K. Grier , Harold M. Bone , Suresh C. Jhawar , Michael T. Mercer
IPC分类号： H05B3/66 , H05B3/06
CPC分类号： H05B3/66
摘要： A vacuum furnace has a heating chamber heated by metal strip electric heater elements. The elements have insulated mechanical support between their ends to hold them in position in the furnace. Support is provided by assemblies having spaced apart mounting assemblies with a rigid bridge compliantly mounted therebetween. The heater strip is compliantly connected to the bridge. Each mounting assembly has a metal post connected to the furnace heating chamber and surrounded by a ceramic sleeve. The ceramic sleeve is surrounded by two ceramic tubes which hold an end of the bridge therebetween.

5. 发明授权

US07758339B2 Method and apparatus for directional and controlled cooling in vacuum furnaces 有权
标题翻译：真空炉中定向和控制冷却的方法和装置
公开(公告)号：US07758339B2
公开(公告)日：2010-07-20
申请号：US11208282
申请日：2005-08-18
申请人： Suresh C. Jhawar , Ronald Garcia
发明人： Suresh C. Jhawar , Ronald Garcia
IPC分类号： F27B5/04 , F27B5/16
CPC分类号： F27D9/00 , C21D1/613 , C21D1/667 , F27B5/16
摘要： A vacuum furnace with a gas manifold branching into a plurality of secondary gas manifolds, the secondary gas manifolds each including a valve that is contained in each secondary gas manifold; a hot gas plenum including an inner and an outer shell with the outer shell attached at one side to the secondary gas manifold; a series of gas restrictor walls between the inner and outer shells of the hot gas manifold that serves the purpose of dividing the plenum into a plurality of non-circumferential sectors so that the load in the plenum may be cooled from the top, bottom, left, or right side or any combination thereof.
摘要翻译：一种具有分支到多个第二气体歧管中的气体歧管的真空炉，所述二次气体歧管各自包括容纳在每个二次气体歧管中的阀; 一个热气体通风室，包括内壳和外壳，外壳在一侧连接到二次气体歧管; 在气体歧管的内壳和外壳之间的一系列气体限制器壁，其用于将集气室分成多个非圆周扇段，使得气室中的负载可以从顶部，底部，左侧，或右侧或其任何组合。

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