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1. 发明授权

US5730158A Heater element of an electrical smoking article and method for making same 失效
标题翻译：电吸烟用品的加热元件及其制造方法
公开(公告)号：US5730158A
公开(公告)日：1998-03-24
申请号：US449462
申请日：1995-05-24
申请人： Alfred L. Collins , Mary E. Counts , Amitabh Das , Seetharama C. Deevi , A. Clifton Lilly, Jr. , D. Bruce Losee, Jr. , Michael L. Watkins , Francis V. Utsch
发明人： Alfred L. Collins , Mary E. Counts , Amitabh Das , Seetharama C. Deevi , A. Clifton Lilly, Jr. , D. Bruce Losee, Jr. , Michael L. Watkins , Francis V. Utsch
IPC分类号： A24B15/22 , A24D3/16 , A24F47/00 , A61L9/03
CPC分类号： H05B3/24 , A24F47/008 , H05B3/42 , Y10T29/49083
摘要： A smoking article is provided in which a replaceable tobacco flavor unit containing tobacco flavor material is electrically heated by a set of permanent reusable heaters to evolve flavors or other components in vapor or aerosol form for delivery to a smoker. Each heater heats only a portion of the available tobacco flavor material so that a plurality of individual puffs of tobacco flavor substance can be delivered sequentially to the smoker. The replaceable tobacco flavor unit can also include a filter to reduce the effect of residual aerosol which settles or condenses on the permanent portions of the article and which can result in off-tastes when reheated. A method and apparatus for manufacturing the replaceable tobacco flavor unit is also provided.
摘要翻译：提供了一种吸烟制品，其中含有烟草香味材料的可更换的烟草香料单元由一组永久可重复使用的加热器电加热，以将蒸气或气溶胶形式的香料或其它组分放出，以便输送到吸烟者。每个加热器仅加热一部分可用的烟草香味材料，使得可以将多个单独的烟草香味物质的烟雾顺序地递送到吸烟者。可替换的烟草香料单元还可以包括过滤器，以减少残留气溶胶的作用，其沉降或凝结在制品的永久部分上，并且当再加热时可能导致异味。还提供了一种用于制造可替换烟草香料单元的方法和设备。

2. 发明授权

US5613504A Flavor generating article and method for making same 失效
标题翻译：风味生成物品及其制造方法
公开(公告)号：US5613504A
公开(公告)日：1997-03-25
申请号：US449035
申请日：1995-05-24
申请人： Alfred L. Collins , Mary E. Counts , Amitabh Das , Seetharama C. Deevi , Grier S. Fleischhauer , Charles T. Higgins , Willie G. Houck, Jr. , Billy J. Keen, Jr. , Robert E. Lee, III , A. Clifton Lilly, Jr. , D. Bruce Losee, Jr. , Hugh J. McCafferty , Constance H. Nichols , Wynn R. Raymond , Robert L. Ripley , Renzer R. Ritt, Sr. , G. Robert Scott , F. Murphy Sprinkel , Michael L. Watkins , Susan E. Wrenn , Francis V. Utsch
发明人： Alfred L. Collins , Mary E. Counts , Amitabh Das , Seetharama C. Deevi , Grier S. Fleischhauer , Charles T. Higgins , Willie G. Houck, Jr. , Billy J. Keen, Jr. , Robert E. Lee, III , A. Clifton Lilly, Jr. , D. Bruce Losee, Jr. , Hugh J. McCafferty , Constance H. Nichols , Wynn R. Raymond , Robert L. Ripley , Renzer R. Ritt, Sr. , G. Robert Scott , F. Murphy Sprinkel , Michael L. Watkins , Susan E. Wrenn , Francis V. Utsch
IPC分类号： A24B15/22 , A24D3/16 , A24F47/00 , A61L9/03 , A24C5/00
CPC分类号： H05B3/24 , A24F47/008 , H05B3/42 , Y10T29/49083
摘要： A smoking article is provided in which a replaceable tobacco flavor unit containing tobacco flavor material is electrically heated by a set of permanent reusable heaters to evolve flavors or other components in vapor or aerosol form for delivery to a smoker. Each heater heats only a portion of the available tobacco flavor material so that a plurality of individual puffs of tobacco flavor substance can be delivered sequentially to the smoker. The replaceable tobacco flavor unit can also include a filter to reduce the effect of residual aerosol which settles or condenses on the permanent portions of the article and which can result in off-tastes when reheated. A method and apparatus for manufacturing the replaceable tobacco flavor unit is also provided.
摘要翻译：提供了一种吸烟制品，其中含有烟草香味材料的可更换的烟草香料单元由一组永久可重复使用的加热器电加热，以将蒸气或气溶胶形式的香料或其它组分放出，以便输送到吸烟者。每个加热器仅加热一部分可用的烟草香味材料，使得可以将多个单独的烟草香味物质的烟雾顺序地递送到吸烟者。可替换的烟草香料单元还可以包括过滤器，以减少残留气溶胶的作用，其沉降或凝结在制品的永久部分上，并且当再加热时可能导致异味。还提供了一种用于制造可替换烟草香料单元的方法和设备。

3. 发明授权

US5865185A Flavor generating article 失效
标题翻译：风味生成物品
公开(公告)号：US5865185A
公开(公告)日：1999-02-02
申请号：US448906
申请日：1995-05-24
申请人： Alfred L. Collins , Mary Ellen Counts , Amitabh Das , Seetharama C. Deevi , Grier S. Fleischhauer , Charles T. Higgins , Willie G. Houck, Jr. , Billy J. Keen, Jr. , Robert E. Lee, III , A. Clifton Lilly, Jr. , D. Bruce Losee, Jr. , Hugh J. McCafferty , Constance H. Nichols , Wynn R. Raymond , Robert L. Ripley , Renzer R. Ritt, Sr. , G. Robert Scott , F. Murphy Sprinkel , Michael L. Watkins , Susan E. Wrenn , Francis V. Utsch
发明人： Alfred L. Collins , Mary Ellen Counts , Amitabh Das , Seetharama C. Deevi , Grier S. Fleischhauer , Charles T. Higgins , Willie G. Houck, Jr. , Billy J. Keen, Jr. , Robert E. Lee, III , A. Clifton Lilly, Jr. , D. Bruce Losee, Jr. , Hugh J. McCafferty , Constance H. Nichols , Wynn R. Raymond , Robert L. Ripley , Renzer R. Ritt, Sr. , G. Robert Scott , F. Murphy Sprinkel , Michael L. Watkins , Susan E. Wrenn , Francis V. Utsch
IPC分类号： A24B15/22 , A24D3/16 , A24F47/00 , A61L9/03 , A24F1/00
CPC分类号： H05B3/24 , A24F47/008 , H05B3/42 , Y10T29/49083
摘要： A smoking article is provided in which a replaceable tobacco flavor unit containing tobacco flavor material is electrically heated by a set of permanent reusable heaters to evolve flavors or other components in vapor or aerosol form for delivery to a smoker. Each heater heats only a portion of the available tobacco flavor material so that a plurality of individual puffs of tobacco flavor substance can be delivered sequentially to the smoker. The replaceable tobacco flavor unit can also include a filter to reduce the effect of residual aerosol which settles or condenses on the permanent portions of the article and which can result in undesirable flavor generation when reheated. A method and apparatus for manufacturing the replaceable tobacco flavor unit is also provided.
摘要翻译：提供了一种吸烟制品，其中含有烟草香味材料的可更换的烟草香料单元由一组永久可重复使用的加热器电加热，以将蒸气或气溶胶形式的香料或其它组分放出，以便输送到吸烟者。每个加热器仅加热一部分可用的烟草香味材料，使得可以将多个单独的烟草香味物质的烟雾顺序地递送到吸烟者。可更换的烟草香味单元还可以包括过滤器，以减少在制品的永久部分沉降或冷凝的残留气溶胶的影响，并且当再加热时可能导致不希望的风味产生。还提供了一种用于制造可替换烟草香料单元的方法和设备。

4. 发明授权

US5665262A Tubular heater for use in an electrical smoking article 失效
标题翻译：用于电吸烟制品的管状加热器
公开(公告)号：US5665262A
公开(公告)日：1997-09-09
申请号：US370125
申请日：1995-01-09
申请人： Mohammad R. Hajaligol , Grier S. Fleischhauer , Seetharama C. Deevi , Charles T. Higgins , Patrick H. Hayes , Herbert Herman , Robert V. Gansert , Alfred L. Collins , Billy J. Keen, Jr. , Bernard C. Laroy , A. Clifton Lilly, Jr.
发明人： Mohammad R. Hajaligol , Grier S. Fleischhauer , Seetharama C. Deevi , Charles T. Higgins , Patrick H. Hayes , Herbert Herman , Robert V. Gansert , Alfred L. Collins , Billy J. Keen, Jr. , Bernard C. Laroy , A. Clifton Lilly, Jr.
IPC分类号： A24F47/00 , H05B3/00 , H05B3/10 , A24F1/22
CPC分类号： A24F47/008
摘要： A cylindrical tube is provided of a mechanically strong and flexible electrical conductor such as a metal and has a plurality of separated regions. An electrically insulating layer such as a ceramic is applied on the outer surface except for one exposed portion. Electrically resistive heaters are then applied to the insulated regions and are electrically connected at one end to the underlying electrical conducting region. The electrical conductor is connected to the negative terminal of a power source. The other end of all the heaters are adapted to be connected to the positive terminal of the source. Accordingly, an electrically resistive heating circuit is formed wherein the tube serves as a common for all of the heating elements. The tubular heater can comprise an exposed end hub with a plurality of blades extending therefrom. Each blade can have an individual heater deposited thereon. Alternatively, every other blade can have a heater deposited thereon. The blades having no heater function as barriers to minimize outward escape of generated vapors. These barrier blades also function as heat sinks for the heaters on adjacent blades.
摘要翻译：圆柱形管由诸如金属的机械强度和柔性的电导体提供，并且具有多个分离的区域。电绝缘层例如陶瓷被施加在除了一个暴露部分之外的外表面上。然后将电阻加热器施加到绝缘区域并且在一端电连接到下面的导电区域。电导体连接到电源的负极端子。所有加热器的另一端适于连接到源的正极端子。因此，形成电阻加热电路，其中管用作所有加热元件的公共端。管状加热器可以包括具有从其延伸的多个叶片的暴露的端部毂。每个叶片可以具有沉积在其上的单个加热器。或者，每隔一个叶片可以具有沉积在其上的加热器。没有加热器的叶片用作阻挡所产生的蒸汽的向外逸出。这些挡板还可用作相邻刀片上的加热器的散热器。

5. 发明授权

US5388594A Electrical smoking system for delivering flavors and method for making same 失效
标题翻译：用于提供口味的电吸烟系统及其制造方法
公开(公告)号：US5388594A
公开(公告)日：1995-02-14
申请号：US118665
申请日：1993-09-10
申请人： Mary E. Counts , Seetharama C. Deevi , Grier S. Fleischhauer , Mohammad R. Hajalogol , Patrick H. Hayes , Charles T. Higgins , Willie G. Houck, Jr. , Billy J. Keen, Jr. , Bernard C. Laroy , Peter J. Lipowicz , Donald E. Miser , Constance H. Nichols , William H. Stevens , Mantharam Subbiah , Michael L. Watkins , Susan E. Wrenn
发明人： Mary E. Counts , Seetharama C. Deevi , Grier S. Fleischhauer , Mohammad R. Hajalogol , Patrick H. Hayes , Charles T. Higgins , Willie G. Houck, Jr. , Billy J. Keen, Jr. , Bernard C. Laroy , Peter J. Lipowicz , Donald E. Miser , Constance H. Nichols , William H. Stevens , Mantharam Subbiah , Michael L. Watkins , Susan E. Wrenn
IPC分类号： A24B15/22 , A24D3/16 , A24F47/00 , A61L9/03
CPC分类号： A24F47/008 , H05B3/24 , H05B3/42
摘要： A smoking system is provided in which a replaceable cigarette containing tobacco flavor material is electrically heated by a set of electrical heater elements contained within a lighter to evolve tobacco flavors or other components in vapor or aerosol form for delivery to a smoker. The cigarette and lighter are adapted to provide air flow patterns through the smoking system such that air flows transversely into the cigarette. Such patterns improve aerosol and flavor delivery to the smoker and reduce the condensation of residual heater-region vapor/aerosol in the smoking system.
摘要翻译：提供了一种吸烟系统，其中通过包含在打火机内的一组电加热器元件对包含烟草香味材料的可替换香烟进行电加热，以将蒸气或气溶胶形式的烟草香料或其它组分放出，以便传送至吸烟者。香烟和打火机适于通过吸烟系统提供气流模式，使得空气横向流入香烟。这样的图案改善吸烟者的气溶胶和风味输送，并减少吸烟系统中残余加热器区蒸气/气溶胶的冷凝。

6. 发明授权

US06660109B2 Method of manufacturing aluminide sheet by thermomechanical processing of aluminide powders 失效
标题翻译：通过铝化物粉末的热机械加工制造铝化物片的方法
公开(公告)号：US06660109B2
公开(公告)日：2003-12-09
申请号：US09984871
申请日：2001-10-31
申请人： Mohammad R. Hajaligol , Clive Scorey , Vinod K. Sikka , Seetharama C. Deevi , Grier Fleishhauer , A. Clifton Lilly, Jr. , Randall M. German
发明人： Mohammad R. Hajaligol , Clive Scorey , Vinod K. Sikka , Seetharama C. Deevi , Grier Fleishhauer , A. Clifton Lilly, Jr. , Randall M. German
IPC分类号： C21D800
CPC分类号： C22C33/0278 , B22F3/18 , B22F5/006 , B22F9/082 , B22F2003/248 , B22F2009/0824 , B22F2009/088 , B22F2998/10 , C21D8/0205 , C21D8/0236 , C21D8/0273 , C22C1/0491 , B22F3/115 , B22F3/16 , B22F3/24
摘要： A powder metallurgical process of preparing a sheet from a powder having an intermetallic alloy composition such as an iron, nickel or titanium aluminide. The sheet can be manufactured into electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 4 to 32% Al, and optional additions such as ≦1% Cr, ≧0.05% Zr ≦2% Ti, ≦2% Mo, ≦1% Ni, ≦0.75% C, ≦0.1% B, ≦1% submicron oxide particles and/or electrically insulating or electrically conductive covalent ceramic particles, ≦1% rare earth metal, and/or ≦3% Cu. The process includes forming a non-densified metal sheet by consolidating a powder having an intermetallic alloy composition such as by roll compaction, tape casting or plasma spraying, forming a cold rolled sheet by cold rolling the non-densified metal sheet so as to increase the density and reduce the thickness thereof and annealing the cold rolled sheet. The powder can be a water, polymer or gas atomized powder which is subjecting to sieving and/or blending with a binder prior to the consolidation step. After the consolidation step, the sheet can be partially sintered. The cold rolling and/or annealing steps can be repeated to achieve the desired sheet thickness and properties. The annealing can be carried out in a vacuum furnace with a vacuum or inert atmosphere. During final annealing, the cold rolled sheet recrystallizes to an average grain size of about 10 to 30 &mgr;m. Final stress relief annealing can be carried out in the B2 phase temperature range.
摘要翻译：从具有金属间合金组成如粉末铁，镍或钛铝化物的粉末制备片材的粉末冶金方法。可以将片材制造成具有改善的室温延展性，电阻率，耐循环疲劳性，耐高温氧化性，低和高温强度和/或耐高温下垂的电阻加热元件。铁铝化物具有完全不含奥氏体的铁素体组织，并且可以以重量％计含有4至32％的Al和任选的添加物，例如<= 1％Cr，> = 0.05％Zr <= 2％Ti， = 2％Mo，<= 1％Ni，≤= 0.75％C，<= 0.1％B，≤1％亚微米级氧化物颗粒和/或电绝缘或导电共价陶瓷颗粒，≤1％稀土金属，和/或<= 3％Cu。该方法包括通过将具有金属间化合物组合物的粉末如通过辊压，带铸或等离子体喷涂固结形成非致密金属片，通过冷轧非致密金属片形成冷轧板，以增加密度并减小其厚度并退火冷轧板。粉末可以是在固结步骤之前与粘合剂进行筛分和/或共混的水，聚合物或气体雾化粉末。在固结步骤之后，片材可以部分烧结。可以重复冷轧和/或退火步骤以实现所需的板厚度和性能。退火可以在真空或惰性气氛的真空炉中进行。在最终退火期间，冷轧板再结晶至平均粒径约为10〜30μm。最终的应力消除退火可以在B2相温度范围内进行。

7. 发明授权

US06284191B1 Method of manufacturing iron aluminide by thermomechanical processing of elemental powers 有权
标题翻译：通过元素力的热机械加工制造铁铝化物的方法
公开(公告)号：US06284191B1
公开(公告)日：2001-09-04
申请号：US09399160
申请日：1999-09-20
申请人： Seetharama C. Deevi , A. Clifton Lilly, Jr. , Vinod K. Sikka , Mohammed R. Hajaligol
发明人： Seetharama C. Deevi , A. Clifton Lilly, Jr. , Vinod K. Sikka , Mohammed R. Hajaligol
IPC分类号： C22C104
CPC分类号： C22C33/0278 , B22F2998/00 , B22F2998/10 , C22C1/0491 , C22C38/06 , B22F3/23 , B22F3/22 , B22F3/18
摘要： A powder metallurgical process of preparing iron aluminide useful as electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 20 to 32% Al, and optional additions such as ≦1% Cr, ≧0.05% Zr or ZrO2 stringers extending perpendicular to an exposed surface of the heating element, ≦2% Ti, ≦2% Mo, ≦1% Zr, ≦1% C, ≦0.1% B, ≦30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, ≦1% rare earth metal, ≦1% oxygen, and/or ≦3% Cu. The process includes forming a mixture of aluminum powder and iron powder, shaping the mixture into an article such as by cold rolling the mixture into a sheet, and sintering the article at a temperature sufficient to react the iron and aluminum powders and form iron aluminide. The sintering can be followed by hot or cold rolling to reduce porosity created during the sintering step and optional annealing steps in a vacuum or inert atmosphere.
摘要翻译：具有改善的室温延展性，电阻率，循环耐疲劳性，高温抗氧化性，低温和高温强度和/或耐高温下垂的电阻加热元件的制备铁铝化物的粉末冶金方法。铁铝化物具有完全不含奥氏体的铁素体组织，并且可以以重量％计包含20至32％的Al和任选的添加物，例如<= 1％Cr，> = 0.05％Zr或ZrO2桁条，垂直于加热元件的暴露表面<= 2％Ti，<= 2％Mo，≤1％Zr，≤1％C，<= 0.1％B，≤30％氧化物分散质和/或电绝缘或电导电共价陶瓷颗粒，<= 1％稀土金属，<= 1％氧和/或≤3％Cu。该方法包括形成铝粉和铁粉的混合物，将混合物成型为制品，例如通过将混合物冷轧成片材，并在足以使铁和铝粉末反应并形成铁铝化物的温度下烧结制品。烧结之后可进行热轧或冷轧，以减少在烧结步骤中产生的孔隙率和在真空或惰性气氛中任选的退火步骤。

8. 发明授权

US5620651A Iron aluminide useful as electrical resistance heating elements 失效
标题翻译：铁铝化物可用作电阻加热元件
公开(公告)号：US5620651A
公开(公告)日：1997-04-15
申请号：US426006
申请日：1995-04-20
申请人： Vinod K. Sikka , Seetharama C. Deevi , Grier S. Fleischhauer , Mohammad R. Hajaligol , A. Clifton Lilly, Jr.
发明人： Vinod K. Sikka , Seetharama C. Deevi , Grier S. Fleischhauer , Mohammad R. Hajaligol , A. Clifton Lilly, Jr.
IPC分类号： C22C38/00 , B22F3/23 , C22C1/04 , C22C33/02 , C22C38/06 , C22C38/14 , C22C38/54 , H01C7/00 , H01C13/00 , H05B3/12
CPC分类号： C22C33/0278 , B22F3/23 , C22C1/0491 , C22C38/06 , B22F2998/00 , B22F2998/10 , B22F2999/00
摘要： The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, .ltoreq.1% Cr and either .gtoreq.0.05% Zr or ZrO.sub.2 stringers extending perpendicular to an exposed surface of the heating element or .gtoreq.0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Zr, .ltoreq.1% C, .ltoreq.0.1% B, .ltoreq.30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, .ltoreq.1% oxygen, .ltoreq.3% Cu, balance Fe.
摘要翻译：本发明一般涉及可用作电阻加热元件的含铝铁基合金。含铝铁基合金具有改善的室温延展性，电阻率，循环耐疲劳性，耐高温氧化性，低，高温强度和/或耐高温下垂的能力。该合金具有完全不含奥氏体的铁素体组织，其重量百分比包括超过4％的Al，≤1％的Cr和> / = 0.05％的Zr或ZrO2桁条，垂直于加热的暴露表面延伸元素或> / = 0.1％氧化物分散质颗粒。该合金可以含有14-32％的Al，2％Ti，2％Mo，1％Zr，1％C，0.1％B，30％氧化物分散质和/或电绝缘或导电共价陶瓷颗粒，1％稀土金属，1％氧，3％Cu，余量为Fe。

9. 发明授权

US06607576B1 Oxidation, carburization and/or sulfidation resistant iron aluminide alloy 有权
标题翻译：氧化，渗碳和/或耐硫化铁铝合金
公开(公告)号：US06607576B1
公开(公告)日：2003-08-19
申请号：US09172375
申请日：1998-10-14
申请人： Vinod K. Sikka , Seetharama C. Deevi , Grier S. Fleischhauer , Mohammad R. Hajaligol , A. Clifton Lilly, Jr.
发明人： Vinod K. Sikka , Seetharama C. Deevi , Grier S. Fleischhauer , Mohammad R. Hajaligol , A. Clifton Lilly, Jr.
IPC分类号： C22C3302
CPC分类号： C22C33/0278 , B22F3/23 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C22C1/0491 , C22C38/06 , B22F3/04 , B22F3/20 , B22F3/1208 , B22F3/18 , B22F3/10 , B22F9/082 , B22F3/15 , B22F2201/05
摘要： The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, ≦1% Cr and either ≧0.05% Zr or Zro2 stringers extending perpendicular to an exposed surface of the heating element or ≧0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, ≦2% Ti, ≦2% Mo, ≦1% Zr, ≦1% C, ≦0.1% B. ≦30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, ≦1% rare earth metal, ≦1% oxygen, ≦3% Cu, balance Fe.
摘要翻译：本发明一般涉及可用作电阻加热元件的含铝铁基合金。含铝铁基合金具有改善的室温延展性，电阻率，循环耐疲劳性，耐高温氧化性，低，高温强度和/或耐高温下垂的能力。该合金具有完全不含奥氏体的铁素体组织，其重量％包括超过4％的Al，≤1％的Cr和> = 0.05％的Zr或Zro2桁条，垂直于加热元件的暴露表面延伸，或 > = 0.1％氧化物分散质颗粒。该合金可以含有14-32％的Al，<= 2％Ti，<= 2％Mo，≤1％Zr，≤1％C，<= 0.1％B. <= 30％氧化物分散质和/或电绝缘或导电共价陶瓷颗粒，<= 1％稀土金属，<= 1％氧，<= 3％Cu，余量为Fe。

10. 发明授权

US06332936B1 Thermomechanical processing of plasma sprayed intermetallic sheets 有权
标题翻译：等离子喷涂金属间板的热机械加工
公开(公告)号：US06332936B1
公开(公告)日：2001-12-25
申请号：US09399364
申请日：1999-09-20
申请人： Mohammad R. Hajaligol , Clive Scorey , Vinod K. Sikka , Seetharama C. Deevi , Grier Fleischhauer , A. Clifton Lilly, Jr. , Randall M. German
发明人： Mohammad R. Hajaligol , Clive Scorey , Vinod K. Sikka , Seetharama C. Deevi , Grier Fleischhauer , A. Clifton Lilly, Jr. , Randall M. German
IPC分类号： B22F500
CPC分类号： C22C33/0278 , B22F3/18 , B22F5/006 , B22F9/082 , B22F2003/248 , B22F2009/0824 , B22F2009/088 , B22F2998/10 , C21D8/0205 , C21D8/0236 , C21D8/0273 , C22C1/0491 , B22F3/115 , B22F3/16 , B22F3/24
摘要： A powder metallurgical process of preparing a sheet from a powder having an intermetallic alloy composition such as an iron, nickel or titanium aluminide. The sheet can be manufactured into electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 4 to 32% Al, and optional additions such as ≦1% Cr, ≧0.05% Zr ≦2% Ti, ≦2% Mo, ≦1% Ni, ≦0.75% C, ≦0.1% B, ≦1% submicron oxide particles and/or electrically insulating or electrically conductive covalent ceramic particles, ≦1% rare earth metal, and/or ≦3% Cu. The process includes forming a non-densified metal sheet by consolidating a powder having an intermetallic alloy composition such as by roll compaction, tape casting or plasma spraying, forming a cold rolled sheet by cold rolling the non-densified metal sheet so as to increase the density and reduce the thickness thereof and annealing the cold rolled sheet. The powder can be a water, polymer or gas atomized powder which is subjecting to sieving and/or blending with a binder prior to the consolidation step. After the consolidation step, the sheet can be partially sintered. The cold rolling and/or annealing steps can be repeated to achieve the desired sheet thickness and properties. The annealing can be carried out in a vacuum furnace with a vacuum or inert atmosphere. During final annealing, the cold rolled sheet recrystallizes to an average grain size of about 10 to 30 &mgr;m. Final stress relief annealing can be carried out in the B2 phase temperature range.
摘要翻译：从具有金属间合金组成如粉末铁，镍或钛铝化物的粉末制备片材的粉末冶金方法。可以将片材制造成具有改善的室温延展性，电阻率，耐循环疲劳性，耐高温氧化性，低和高温强度和/或耐高温下垂的电阻加热元件。铁铝化物具有完全不含奥氏体的铁素体组织，并且可以以重量％计含有4至32％的Al和任选的添加物，例如<= 1％Cr，> = 0.05％Zr <= 2％Ti， = 2％Mo，<= 1％Ni，≤= 0.75％C，<= 0.1％B，≤1％亚微米级氧化物颗粒和/或电绝缘或导电共价陶瓷颗粒，≤1％稀土金属，和/或<= 3％Cu。该方法包括通过将具有金属间化合物组合物的粉末如通过辊压，带铸或等离子体喷涂固结形成非致密金属片，通过冷轧非致密金属片形成冷轧板，以增加密度并减小其厚度并退火冷轧板。粉末可以是在固结步骤之前与粘合剂进行筛分和/或共混的水，聚合物或气体雾化粉末。在固结步骤之后，片材可以部分烧结。可以重复冷轧和/或退火步骤以实现所需的板厚度和性能。退火可以在真空或惰性气氛的真空炉中进行。在最终退火期间，冷轧板再结晶至平均粒径约为10〜30μm。最终的应力消除退火可以在B2相温度范围内进行。

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