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1. 发明授权

US5333844A Non-graphite crucible for high temperature applications 失效
标题翻译：非石墨坩埚用于高温应用
公开(公告)号：US5333844A
公开(公告)日：1994-08-02
申请号：US951742
申请日：1992-09-25
申请人： Cressie E. Holcombe , William A. Pfeiler
发明人： Cressie E. Holcombe , William A. Pfeiler
IPC分类号： F27B14/06 , F27B14/10 , C21B3/00
CPC分类号： F27B14/10 , F27B14/061 , Y10S137/91
摘要： A multi-piece crucible for high temperature applications comprises a tubular side wall member having a lip on the inside surface and a bottom member or members forming a container for containing a melt of a material during a high temperature melt-casting operations. The multi-piece design prevents cracking of the crucible or leakage of the melt from the crucible during the melt-casting operation. The lip of the tubular member supports the bottom member. The contacting surfaces where the lip of the tubular side wall member contacts the bottom member of the multi-piece crucible contains a ceramic sealing material. The ceramic sealing material forms a seal sufficient to prevent the melt of the material from leaking out of the multi-piece crucible during the melt-casting process. The multi-piece crucible is made of a material which is chemically inert to the melt and has structural integrity at the melting point temperature of the melt, or of a material coated with such a material.
摘要翻译：用于高温应用的多件式坩埚包括在内表面具有唇缘的管状侧壁构件和形成用于在高温熔融浇铸操作期间容纳材料的熔体的容器的底部构件或构件。该多件式设计可以防止在熔融铸造操作期间坩埚的裂纹或熔体从坩埚泄漏。管状构件的唇部支撑底部构件。管状侧壁构件的唇部与多片坩埚的底部构件接触的接触表面包含陶瓷密封材料。陶瓷密封材料形成足够的密封，以防止在熔体浇铸过程中材料的熔体从多片坩埚中泄漏出来。多件式坩埚由对熔体具有化学惰性的材料制成，并且在熔体的熔点温度或涂覆有这种材料的材料上具有结构完整性。

2. 发明授权

US5482257A Non-graphite crucible for high temperature applications 失效
标题翻译：非石墨坩埚用于高温应用
公开(公告)号：US5482257A
公开(公告)日：1996-01-09
申请号：US186837
申请日：1994-01-25
申请人： Cressie E. Holcombe , William A. Pfeiler
发明人： Cressie E. Holcombe , William A. Pfeiler
IPC分类号： F27B14/06 , F27B14/10 , B22D41/00
CPC分类号： F27B14/10 , F27B14/061
摘要： A multi-piece crucible for high temperature applications comprises a tubular side wall member having a lip on the inside surface and a bottom member or members forming a container for containing a melt of a material during a high temperature melt-casting operations. The multi-piece design prevents cracking of the crucible or leakage of the melt from the crucible during the melt-casting operation. The lip of the tubular member supports the bottom member. The contacting surfaces where the lip of the tubular side wall member contacts the bottom member of the multi-piece crucible contains a ceramic sealing material. The ceramic sealing material forms a seal sufficient to prevent the melt of the material from leaking out of the multi-piece crucible during the melt-casting process. The multi-piece crucible is made of a material which is chemically inert to the melt and has structural integrity at the melting point temperature of the melt, or of a material coated with such a material. The multi-piece crucible is contained in a thermal can assembly of a high temperature induction furnace during a high temperature melt-casting operation. One embodiment of the multi-piece crucible comprises a tubular member having a vertical slot filled with a ceramic sealing material to provide expansion of the tubular member without cracking during the high temperature melt-casting operation.
摘要翻译：用于高温应用的多件式坩埚包括在内表面具有唇缘的管状侧壁构件和形成用于在高温熔融浇铸操作期间容纳材料的熔体的容器的底部构件或构件。该多件式设计可以防止在熔融铸造操作期间坩埚的裂纹或熔体从坩埚泄漏。管状构件的唇部支撑底部构件。管状侧壁构件的唇部与多片坩埚的底部构件接触的接触表面包含陶瓷密封材料。陶瓷密封材料形成足够的密封，以防止在熔体浇铸过程中材料的熔体从多片坩埚中泄漏出来。多件式坩埚由对熔体具有化学惰性的材料制成，并且在熔体的熔点温度或涂覆有这种材料的材料上具有结构完整性。在高温熔融铸造操作期间，多片坩埚被包含在高温感应炉的热罐组件中。多片坩埚的一个实施例包括管状构件，其具有填充有陶瓷密封材料的垂直狭槽，以在高温熔融浇铸操作期间提供管状构件的膨胀而不会开裂。

3. 发明授权

US4550412A Carbon-free induction furnace 失效
标题翻译：无碳感应炉
公开(公告)号：US4550412A
公开(公告)日：1985-10-29
申请号：US568770
申请日：1984-01-06
申请人： Cressie E. Holcombe , David R. Masters , William A. Pfeiler
发明人： Cressie E. Holcombe , David R. Masters , William A. Pfeiler
IPC分类号： F27B14/06 , F27B14/10 , F27D1/00 , H05B6/02
CPC分类号： F27D1/0009 , F27B14/061 , F27B14/10 , F27D1/0006
摘要： An induction furnace for melting and casting highly pure metals and alloys such as uranium and uranium alloys in such a manner as to minimize contamination of the melt by carbon derived from the materials and the environment within the furnace. The subject furnace is constructed of carbon free materials and is housed within a conventional vacuum chamber. The furnace comprises a ceramic oxide crucible for holding the charge of metal or alloy. The heating of the crucible is achieved by a plasma-sprayed tungsten susceptor surrounding the crucible which, in turn, is heated by an RF induction coil separated from the susceptor by a cylinder of inorganic insulation. The furnace of the present invention is capable of being rapidly cycled from ambient temperatures to about 1650.degree. C. for effectively melting uranium and uranium alloys without the attendant carbon contamination problems previously encountered when using carbon-bearing furnace materials.
摘要翻译：一种用于熔融和铸造高纯度金属和合金如铀和铀合金的感应炉，以便使来自该材料的碳和来自炉内的环境的熔化物的污染最小化。本炉由无碳材料构成，并被容纳在常规真空室内。该炉包括用于保持金属或合金的电荷的陶瓷氧化物坩埚。坩埚的加热通过围绕坩埚的等离子体喷涂的钨基座来实现，坩埚又由被无机绝缘体的圆筒与基座隔开的RF感应线圈加热。本发明的炉能够从环境温度快速循环至约1650℃，以有效地熔化铀和铀合金，而不会在使用含碳炉材料时遇到先前遇到的碳污染问题。

4. 发明授权

US5536292A Method of preparing thermal insulation for high temperature microwave sintering operations 失效
标题翻译：高温微波烧结操作保温方法
公开(公告)号：US5536292A
公开(公告)日：1996-07-16
申请号：US518067
申请日：1995-08-22
申请人： Cressie E. Holcombe , Norman L. Dykes , Marvin S. Morrow
发明人： Cressie E. Holcombe , Norman L. Dykes , Marvin S. Morrow
IPC分类号： H05B6/80 , C03C23/00
CPC分类号： H05B6/80
摘要： Superior microwave transparent thermal insulations for high temperature microwave sintering operations were prepared. One embodiment of the thermal insulation comprises granules of boron nitride coated with a very thin layer of glassy carbon made by preparing a glassy carbon precursor and blending it with boron nitride powder to form a mixture. The blended mixture is granulated to form a grit which is dried and heated to form the granules of boron nitride coated with a glassy carbon. Alternatively, grains of glassy carbon are coated with boron nitride by blending a mixture of a slurry comprising boron nitride, boric acid binder, and methyl alcohol with glassy carbon grains to form a blended mixture. The blended mixture is dried to form grains of glassy carbon coated with boron nitride. In addition, a physical mixture of boron nitride powder and glassy carbon grains has also been shown to be an excellent thermal insulation material for microwave processing and sintering.
摘要翻译：制备了用于高温微波烧结操作的优异的微波透明绝热材料。绝热的一个实施方案包括用非常薄的玻璃碳层涂覆的氮化硼颗粒，其通过制备玻璃碳前体制备并与氮化硼粉末混合以形成混合物。将混合的混合物造粒以形成砂粒，将其干燥并加热以形成用玻璃碳涂覆的氮化硼颗粒。或者，通过将包含氮化硼，硼酸粘合剂和甲醇的浆料的混合物与玻璃碳颗粒混合以形成混合的混合物，用氮化硼涂覆玻璃碳颗粒。将混合的混合物干燥以形成用氮化硼涂覆的玻璃状碳颗粒。此外，氮化硼粉末和玻璃碳颗粒的物理混合物也被证明是用于微波加工和烧结的优异的绝热材料。

5. 发明授权

US4810846A Container for heat treating materials in microwave ovens 失效
标题翻译：微波炉热处理材料容器
公开(公告)号：US4810846A
公开(公告)日：1989-03-07
申请号：US148530
申请日：1988-01-26
申请人： Cressie E. Holcombe , Norman L. Dykes , Harold D. Kimrey, Jr. , James E. Mills
发明人： Cressie E. Holcombe , Norman L. Dykes , Harold D. Kimrey, Jr. , James E. Mills
IPC分类号： H05B6/64 , H05B6/80
CPC分类号： H05B6/64
摘要： The efficiency of a microwave oven of a conventional two-source configuration and energy level is increased by providing the oven with a container for housing a refractory material to be treated. The container is formed of top and bottom walls transparent to microwaves while the sidewalls, in a circular configuration, are formed of a nonmetallic material opaque to microwave radiation reflecting the radiation penetrating the top and bottom walls radially inwardly into the center of the container wherein a casket of heat-insulating material is provided for housing the material to be heat treated. The reflection of the microwave radiation from the sidewalls increases the concentration of the microwaves upon the material being heat treated while the casket retains the heat to permit the heating of the material to a substantially higher temperature than achieveable in the oven without the container.
摘要翻译：通过为烘箱提供用于容纳要处理的耐火材料的容器来增加常规双源配置和能级的微波炉的效率。容器由对微波透明的顶壁和底壁形成，而圆形构型的侧壁由对微波辐射不透明的非金属材料形成，该非金属材料反射穿过顶壁和底壁径向向内进入容器中心的辐射，其中a 提供隔热材料的棺材来容纳待热处理的材料。来自侧壁的微波辐射的反射增加了微波在被热处理的材料上的浓度，同时棺材保持热量，以允许材料的加热达到比没有容器的烤箱中实现的温度更高的温度。

6. 发明授权

US4559429A Microwave coupler and method 失效
标题翻译：微波耦合器和方法
公开(公告)号：US4559429A
公开(公告)日：1985-12-17
申请号：US676342
申请日：1984-11-29
申请人： Cressie E. Holcombe
发明人： Cressie E. Holcombe
IPC分类号： H05B6/04 , H05B6/80
CPC分类号： H05B6/04
摘要： The present invention is directed to a microwave coupler for enhancing the heating or metallurgical treatment of materials within a cold-wall, rapidly heated cavity as provided by a microwave furnace. The coupling material of the present invention is an alpha-rhombohedral-boron-derivative-structure material such as boron carbide or boron silicide which can be appropriately positioned as a susceptor within the furnace to heat other material or be in powder particulate form so that composites and structures of boron carbide such as cutting tools, grinding wheels and the like can be rapidly and efficiently formed within microwave furnaces.
摘要翻译：本发明涉及一种微波耦合器，用于增强由微波炉提供的冷壁，快速加热腔内的材料的加热或冶金处理。本发明的偶联材料是诸如碳化硼或硼硅化物之类的α-菱方烷 - 硼衍生物结构材料，其可以适当地定位在炉内作为感受器以加热其它材料或粉末颗粒形式，使得复合材料并且可以在微波炉内快速有效地形成诸如切削工具，砂轮等的碳化硼结构。

7. 发明授权

US5453225A Method of making a composite refractory material 失效
$Method of making a composite refractory material$
标题翻译：制作复合耐火材料的方法
公开(公告)号：US5453225A
公开(公告)日：1995-09-26
申请号：US218400
申请日：1994-03-28
申请人： Marvin S. Morrow , Cressie E. Holcombe
发明人： Marvin S. Morrow , Cressie E. Holcombe
IPC分类号： C04B35/563 , B29C71/04
CPC分类号： C04B35/563
摘要： A composite refractory material is prepared by combining boron carbide with furan resin to form a mixture containing about 8 wt. % furan resin. The mixture is formed into a pellet which is placed into a grit pack comprising an oxide of an element such as yttrium to form a sinterable body. The sinterable body is sintered under vacuum with microwave energy at a temperature no greater than 2000.degree. C. to form a composite refractory material.
摘要翻译：复合耐火材料通过将碳化硼与呋喃树脂组合形成含有约8wt。％呋喃树脂。将混合物形成为沉积物，将其放入包括诸如钇的元素的氧化物的砂粒组合中以形成可烧结体。可烧结体在真空下用微波能在不高于2000℃的温度下烧结以形成复合耐火材料。

8. 发明授权

US5330942A Composite of refractory material 失效
$Composite of refractory material$
标题翻译：耐火材料复合材料
公开(公告)号：US5330942A
公开(公告)日：1994-07-19
申请号：US7441
申请日：1993-01-22
申请人： Cressie E. Holcombe , Marvin S. Morrow
发明人： Cressie E. Holcombe , Marvin S. Morrow
IPC分类号： C04B35/563 , C04B35/56
CPC分类号： C04B35/563
摘要： A composite refractory material composition comprises a boron carbide matrix and minor constituents of yttrium-boron-oxygen-carbon phases uniformly distributed throughout the boron carbide matrix.
摘要翻译：复合耐火材料组合物包含碳化硼基体和均匀分布在整个碳化硼基体上的钇 - 硼 - 氧 - 碳相的次要成分。

9. 发明授权

US5006306A Process for alloying uranium and niobium 失效
标题翻译：铀和铌合金化工艺
公开(公告)号：US5006306A
公开(公告)日：1991-04-09
申请号：US578154
申请日：1990-09-06
申请人： Cressie E. Holcombe , Walter G. Northcutt, Jr. , David R. Masters , Lloyd R. Chapman
发明人： Cressie E. Holcombe , Walter G. Northcutt, Jr. , David R. Masters , Lloyd R. Chapman
IPC分类号： C22C1/02
CPC分类号： C22C1/02
摘要： Alloys such as U-6Nb are prepared by forming a stacked sandwich array of uraniun sheets and niobium powder disposed in layers between the sheets, heating the array in a vacuum induction melting furnace to a temperature such as to melt the uranium, holding the resulting mixture at a temperature above the melting point of uranium until the niobium dissolves in the uranium, and casting the uranium-niobium solution. Compositional uniformity in the alloy product is enabled by use of the sandwich structure of uranium sheets and niobium powder.
摘要翻译：合金如U-6Nb通过在片材之间形成层叠的层状夹层板和铌粉末来制备，在真空感应熔炉中将阵列加热到熔化铀的温度，保持所得混合物在高于铀熔点的温度下，直到铌溶解在铀中，并浇铸铀 - 铌溶液。通过使用铀片和铌粉的夹层结构可以实现合金产品的组成均匀性。

10. 发明授权

US5449887A Thermal insulation for high temperature microwave sintering operations and method thereof 失效
标题翻译：高温微波烧结操作的绝热及其方法
公开(公告)号：US5449887A
公开(公告)日：1995-09-12
申请号：US036763
申请日：1993-03-25
申请人： Cressie E. Holcombe , Norman L. Dykes , Marvin S. Morrow
发明人： Cressie E. Holcombe , Norman L. Dykes , Marvin S. Morrow
IPC分类号： H05B6/80
CPC分类号： H05B6/80
摘要： Superior microwave transparent thermal insulations for high temperature microwave sintering operations were prepared. One embodiment of the thermal insulation comprises granules of boron nitride coated with a very thin layer of glassy carbon made by preparing a glassy carbon precursor and blending it with boron nitride powder to form a mixture. The blended mixture is granulated to form a grit which is dried and heated to form the granules of boron nitride coated with a glassy carbon. Alternatively, grains of glassy carbon are coated with boron nitride by blending a mixture of a slurry comprising boron nitride, boric acid binder, and methyl alcohol with glassy carbon grains to form a blended mixture. The blended mixture is dried to form grains of glassy carbon coated with boron nitride. In addition, a physical mixture of boron nitride powder and glassy carbon grains has also been shown to be an excellent thermal insulation material for microwave processing and sintering.
摘要翻译：制备了用于高温微波烧结操作的优异的微波透明绝热材料。绝热的一个实施方案包括用非常薄的玻璃碳层涂覆的氮化硼颗粒，其通过制备玻璃碳前体制备并与氮化硼粉末混合以形成混合物。将混合的混合物造粒以形成砂粒，将其干燥并加热以形成用玻璃碳涂覆的氮化硼颗粒。或者，通过将包含氮化硼，硼酸粘合剂和甲醇的浆料的混合物与玻璃碳颗粒混合以形成混合的混合物，用氮化硼涂覆玻璃碳颗粒。将混合的混合物干燥以形成用氮化硼涂覆的玻璃状碳颗粒。此外，氮化硼粉末和玻璃碳颗粒的物理混合物也被证明是用于微波加工和烧结的优异的绝热材料。

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