公开(公告)号：US06334884B1

公开(公告)日：2002-01-01

申请号：US09484447

申请日：2000-01-18

申请人： Claes Tornberg

发明人： Claes Tornberg

IPC分类号： B22F908

CPC分类号： B22F9/082 ,  B22F2009/088

摘要： Process and a device for producing metal powders from molten metal. The process includes the provision of molten metal in a metallurgical vessel having a nozzle element, the nozzle element being directed into an atomization chamber associated with the metallurgical vessel. The molten metal is allowed to flow through the nozzle element of the metallurgical vessel into the atomization chamber whereby a molten metal stream is fed into the atomization chamber. At least three successive gas beams are directed at the molten metal stream inside the atomization chamber, the at least three gas beams being oriented in different directions. Thereby the molten metal stream is broken down into droplets which subsequently freeze into grains that are collected. The device includes a metallurgical vessel for holding molten metal provided with a nozzle element for discharging molten metal from the metallurgical vessel in the form of a molten metal stream and an atomization chamber in association with the metallurgical vessel for receiving the molten metal stream discharged from the nozzle element. It also includes at least three gas nozzle elements for providing at least three gas beams of different orientation and directed at different points of the molten metal stream inside the atomization chamber, at least one of the at least three gas nozzle elements being capable of providing a gas beam which deflects and widens and/or divides the molten metal stream entering the atomization chamber; and at least one other gas nozzle element being capable of providing a gas beam which breaks down a widened and thinned and/or divided molten metal stream into droplets.

摘要翻译： 工艺和用于从熔融金属制造金属粉末的装置。 该方法包括在具有喷嘴元件的冶金容器中提供熔融金属，喷嘴元件被引导到与冶金容器相关联的雾化室中。 允许熔融金属流过冶金容器的喷嘴元件进入雾化室，由此将熔融金属流送入雾化室。 至少三个连续的气体束指向雾化室内的熔融金属流，至少三个气体束沿不同的方向定向。 从而将熔融金属流分解成液滴，随后将其冷冻成收集的颗粒。 该装置包括用于保持熔融金属的冶金容器，该熔融金属设置有用于以熔融金属流的形式从冶金容器排出熔融金属的喷嘴元件和与冶金容器相关联的雾化室，用于接收从熔融金属流排出的熔融金属流 喷嘴元件。 它还包括至少三个气体喷嘴元件，用于提供不同取向的至少三个气体束并且指向雾化室内的熔融金属流的不同点，所述至少三个气体喷嘴元件中的至少一个能够提供 使进入雾化室的熔融金属流偏转和加宽和/或分割的气体束; 并且至少一个其它气体喷嘴元件能够提供将加宽和变薄的和/或分割的熔融金属流分解成液滴的气体束。

公开(公告)号：US4584170A

公开(公告)日：1986-04-22

申请号：US668295

申请日：1984-11-05

申请人： Christer Aslund ,  Claes Tornberg

发明人： Christer Aslund ,  Claes Tornberg

IPC分类号： B22F3/12 ,  B22F3/20 ,  B22F7/00

CPC分类号： B22F3/20 ,  B22F3/1258 ,  Y10T428/1209 ,  Y10T428/12097 ,  Y10T428/13

摘要： A method of making pipes by powder metallurgy, in which powder of metal and/or metal alloys (17) is filled into a thin-walled casing consisting of inner pipe wall (12), outer pipe wall (11) and a bottom (13), subsequently the casing is closed on its side remote from the bottom (13) by an annular cover (14) and is subjected to a cold-isostatic pressure whereby the powder (17) is compacted within the casing to produce a solid or dimensionally stable pipe blank or compact (10), which is then hot-worked, e.g. extruded. In order to prevent thermal cracks on the inner pipe or inner pipe wall (12), especially in the region of the ends thereof, the inner pipe or inner pipe wall (12) is provided prior to hot-working on at least one end region thereof with at least one circumferentially extending bulge (15 or 16, respectively).

摘要翻译： 一种通过粉末冶金制造管道的方法，其中将金属和/或金属合金（17）的粉末填充到由内管壁（12），外管壁（11）和底部（13）组成的薄壁壳体中 ），随后壳体通过环形盖（14）在其远离底部（13）的一侧封闭，并经受冷等静压力，由此粉末（17）在壳体内压实以产生固体或尺寸 稳定的管坯或紧密（10），然后热加工，例如 挤出。 为了防止内管或内管壁（12）上的热裂纹，特别是其端部区域中，内管或内管壁（12）在热作用之前提供至少一个端部区域 具有至少一个周向延伸的凸起（分别为15或16）。

公开(公告)号：US4373012A

公开(公告)日：1983-02-08

申请号：US195610

申请日：1980-06-26

申请人： Christer Aslund ,  Hans Eriksson ,  Claes Tornberg

发明人： Christer Aslund ,  Hans Eriksson ,  Claes Tornberg

IPC分类号： B22F3/12 ,  B22F3/20 ,  B22F3/00

CPC分类号： B22F3/20 ,  B22F3/1258 ,  Y10T428/12097

摘要： This invention relates to a capsule for pressings pressed by isostatic pressure and to these pressings used for extruding metallic objects, particularly tubes, of stainless steel, the outer and inner wall of the capsule consisting of thin-walled sheet metal, and at least the outer wall having substantially the same strength properties in the axial direction along its circumference and particularly consisting of a spiral-welded tube, and preferably at least on the front end of the capsule an insert being provided, which consists of one or more pieces of a ductile solid material or a ductile material pressed from powder. The invention further relates to a process for the production of such capsules and pressings and to a process for extruding tubes and to the tubes obtained according to this process.

摘要翻译： PCT No.PCT / EP79 / 00084 Sec。 371日期：1980年6月26日 102（e）日期1980年6月26日PCT申请日1979年10月26日PCT公布。 WO WO / 00084 PCT出版物 日本公开日为1980年5月1日。本发明涉及一种用等压压制的压制胶囊，以及用于挤压金属物体，特别是不锈钢管的压制件，胶囊的外壁和内壁由薄壁金属板 ，并且至少外壁沿其圆周沿轴向具有基本上相同的强度特性，特别是由螺旋焊接管组成，并且优选地至少在胶囊的前端上设置有由一个 或更多的延展性固体材料或从粉末压制的延性材料。 本发明还涉及一种生产这种胶囊和压制物的方法，以及用于挤出管子和根据该方法获得的管子的方法。

公开(公告)号：US06506227B1

公开(公告)日：2003-01-14

申请号：US09874282

申请日：2001-06-06

申请人： Claes Tornberg

发明人： Claes Tornberg

IPC分类号： C22C3302

CPC分类号： C22C38/22 ,  B22F2009/0848 ,  B22F2009/0852 ,  B22F2009/0896 ,  B22F2998/10 ,  B22F2999/00 ,  C21D7/13 ,  C21D2241/02 ,  C22C33/02 ,  C22C38/24 ,  C22C38/30 ,  C22C38/36 ,  B22F3/16 ,  B22F9/082 ,  B22F3/1208 ,  B22F3/15 ,  B22F2201/02 ,  B22F2202/01

摘要： The invention relates to a process for the powder metallurgical production of objects from tool steel as well as to such an object. The quality of the material, in particular its homogeneity, its degree of purity, and the properties of the same is/are increased by using the process according to:the invention, in which a melt is placed in a metallurgical vessel and conditioned therein, whereupon a powder with an average grain diameter of 50 to 70 &mgr;m is produced from this melt by atomizing it with nitrogen at a temperature that is essentially kept constant, this powder is disintegrated in the nitrogen stream and, while maintaining the nitrogen atmosphere, the powder with a maximum grain diameter of 500 &mgr;m is classified, collected, mixed, introduced into a capsule with a diameter or thickness greater than 300 mm and a length greater than 1000 mm, compacted in this container, and the container is sealed in a gas-tight manner, whereupon, in a hot isostatic pressing cycle therefor, the parameters are set such that, in the heating process, the temperature and the pressure are increased and an isostatic pressing process then is carried out and subsequently the HIP pressed blank is cooled and this pressed blank is optionally then hot formed and, in this manner, a highly pure material with a K0 value according to DIN 50 602 of essentially no greater than 3 is produced.

摘要翻译： 本发明涉及一种用于从工具钢以及这种物体粉末冶金生产物体的方法。 通过使用根据本发明的方法来增加材料的质量，特别是其均匀性，其纯度和其性质，其中将熔体置于冶金容器中并在其中调理， 由此，通过在基本保持恒定的温度下用氮气雾化从该熔体制备平均粒径为50〜70μm的粉末，该粉末在氮气流中分解，并且在保持氮气氛的同时，将粉末 将最大粒径为500μm的颗粒分级，收集，混合，引入到直径或厚度大于300mm，长度大于1000mm的胶囊中，压实在该容器中，并将容器密封在气体 - 因此，在热等静压按压循环中，参数被设定为使得在加热过程中温度和压力增加并且等静压按压过程 然后进行并随后将HIP压制坯料冷却，然后任选地将该压制坯料热成型，并且以这种方式产生具有基本上不大于3的根据DIN 50 602的K0值的高纯度材料。

公开(公告)号：US06405512B1

公开(公告)日：2002-06-18

申请号：US09456436

申请日：1999-12-08

申请人： Claes Tornberg

发明人： Claes Tornberg

IPC分类号： B65B6300

CPC分类号： B22F9/082 ,  B22F9/08 ,  B22F2009/0896

摘要： Apparatus and process for manufacturing metal powder from a molten mass. The process occurs in an apparatus that includes at least one metallurgical vessel adapted to at least one of treat and prepare a batch of the molten mass, and an atomizing chamber including a nozzle part adapted to sputter a portion of the molten mass, a feed side coupled to the metallurgical vessel, and a discharge side. The atomizing chamber has a longitudinal axis arranged inclined downwardly from the feed side to the discharge side. The apparatus also includes a separator adapted for classifying the metal powder, and an encapsulating facility including at least one container. The metal powder is to be inserted and enclosed within the at least one container. A conveyance unit for powder transport includes an ascending pipe oriented to guide the metal powder upwardly. A diverting part is coupled to the discharge side and to a first end of the ascending pipe, and a disintegrator is coupled between a second end of the ascending pipe and the separator. A deflection valve is coupled the disintegrator to the separator. A collecting basin is coupled between the separator and the encapsulating facility, and a shut-off device couples the collecting basin to the encapsulating facility.

摘要翻译： 用于从熔融体制造金属粉末的装置和方法。 该方法发生在包括至少一个冶金容器的设备中，所述冶金容器适于处理和准备一批熔融物料中的至少一种，以及包括适于溅射熔融物料的一部分的喷嘴部分的雾化室， 耦合到冶金容器和排出侧。 雾化室具有从进料侧向排出侧向下倾斜的纵向轴线。 该设备还包括适于分类金属粉末的分离器和包括至少一个容器的封装设备。 将金属粉末插入和封闭在至少一个容器内。 用于粉末输送的输送单元包括向上引导金属粉末的上升管。 转向部分联接到排放侧和上升管的第一端，并且分解器联接在上升管的第二端和分离器之间。 偏转阀将分解器连接到分离器。 收集池联接在分离器和封装设备之间，并且截止装置将收集池连接到封装设备。

公开(公告)号：US4935198A

公开(公告)日：1990-06-19

申请号：US188335

申请日：1988-04-29

申请人： Claes Tornberg

发明人： Claes Tornberg

IPC分类号： B22F3/20 ,  B22F5/00 ,  B22F5/10 ,  B22F5/12

CPC分类号： B22F5/10 ,  B22F3/20 ,  B22F2998/00

摘要： Method of and apparatus for powder-metallurgical manufacture of tubes or like elongated profiles, in which metal and/or metal alloy powder (3) is filled--if applicable with pre-compacting by means of vibrations or the like--into a thin-walled capsule, the latter is subsequently closed and cold and/or hot-pressed by means of universally acting isostatic pressure, and the thus obtained compact is further processed, especially extruded. For forming the tubular compact, the capsule filled with powder (3) after closing (cover 9; 9'; 9") and isostatic pressing is centrally pierced (hole 26) by means of a mandrel (4, 5) whereby the powder (3) is correspondingly radially compacted from the inside towards the outside. The capsule features a cylindrical outer casing (8), a bottom (14) and a cover (9; 9'; 9").

摘要翻译： 用于粉末冶金制造管或类似细长型材的方法和装置，其中金属和/或金属合金粉末（3）如果适用，通过振动等预先压实成薄壁的 胶囊，后者随后通过通用作用的等静压力封闭并冷和/或热压，并且将如此获得的压块进一步加工，特别是挤出。 为了形成管状压块，在封闭（盖9; 9'; 9“）和等静压之后填充有粉末（3）的胶囊通过心轴（4,5）中心刺穿（孔26），由此粉末 （3）相应地从内向外压缩。 胶囊具有圆柱形外壳（8），底部（14）和盖（9; 9'; 9“）。

公开(公告)号：US07309375B2

公开(公告)日：2007-12-18

申请号：US10491795

申请日：2002-09-30

申请人： Claes Tornberg

发明人： Claes Tornberg

IPC分类号： B22F9/06

CPC分类号： B22F9/082 ,  B22F2009/088

摘要： The invention relates to the production of a metallic powder consisting of surface-fissured, so-called irregular particles, namely a water-atomised metallic powder. The aim of the invention is to obtain an irregular surface form of powder grains (23) in a narrow weight class and to impart a high porosity with a homogeneous distribution to the sintered body. To this end, in a first step, the pouring stream (2) is deviated in its flow direction and is enlarged on its surface, and in a second step, the surface-enlarged pouring stream (21) is deviated again its flow direction and is divided, and the liquid metallic particles (22) formed are accelerated, and in a third step, the displaced liquid metallic particles (22) are applied and divided, at an angle γ of between 10 and 90° in relation to the displacement direction of the same, with a high speed current (51) formed at least partially from a liquid medium, and the particles (23) are then solidified. According to one embodiment of the invention, in order to reduce the overheating of the metal melt and/or to improve the quality of the metallic powder produced, the pouring stream (2) is deviated in its flow direction and a surface enlargement of the same (21) is carried out, in a first method step, and/or the surface-enlarged pouring stream (21) is deviated and divided, and the formed liquid metallic particles (22) are accelerated, in the second method step, with at least one current (6,31,41) formed from at least one heated gas or heated gas mixture.

摘要翻译： 本发明涉及由表面裂开的所谓的不规则颗粒，即水雾化的金属粉末组成的金属粉末的制造。 本发明的目的是获得一种不规则表面形式的粉末颗粒（23），并且赋予烧结体均匀分布的高孔隙率。 为此，在第一步骤中，倾倒料流（2）在其流动方向上偏离并在其表面上扩大，在第二步骤中，表面膨胀的浇注料流（21）再次偏离其流动方向， 并且形成的液体金属颗粒（22）被加速，并且在第三步骤中，移位的液体金属颗粒（22）相对于位移方向以10至90°的角度γ被施加和分割 使用至少部分地从液体介质形成的高速电流（51），然后使颗粒（23）固化。 根据本发明的一个实施例，为了减少金属熔体的过热和/或提高所生产的金属粉末的质量，浇注料流（2）在其流动方向上偏离并且其表面扩大 （21）在第一方法步骤中和/或表面增大的浇注料流（21）偏离和分离，并且在第二方法步骤中，形成的液态金属颗粒（22）被加速 由至少一种加热的气体或加热气体混合物形成的至少一个电流（6,31,41）。

公开(公告)号：US06632394B2

公开(公告)日：2003-10-14

申请号：US09909763

申请日：2001-07-23

申请人： Claes Tornberg

发明人： Claes Tornberg

IPC分类号： C21C100

CPC分类号： B22F9/082 ,  B22F2009/088

摘要： Process and a device for producing metal powders from molten metal. The process includes directing at least three successive gas beams at a molten metal stream inside an atomization chamber, the at least three gas beams being oriented in different directions. The device includes a metallurgical vessel for holding molten metal provided with a nozzle element for discharging a molten metal stream into an atomization chamber as well as at least three gas nozzle elements for providing at least three gas beams of different orientation and directed at different points of the molten metal stream inside the atomization chamber.

摘要翻译： 工艺和用于从熔融金属制造金属粉末的装置。 该过程包括在雾化室内的熔融金属流下引导至少三个连续的气体束，至少三个气体束沿不同的方向定向。 该装置包括用于保持熔融金属的冶金容器，该熔融金属设置有用于将熔融金属流排放到雾化室中的喷嘴元件，以及至少三个气体喷嘴元件，用于提供至少三个不同取向的气体束并且指向不同点 雾化室内的熔融金属流

公开(公告)号：US4965043A

公开(公告)日：1990-10-23

申请号：US328584

申请日：1989-01-23

申请人： Claes Tornberg

发明人： Claes Tornberg

IPC分类号： B22F3/04 ,  B22F3/12 ,  B22F3/20 ,  B22F5/12

CPC分类号： B22F3/20 ,  B22F3/1208

摘要： A method of powder-metallurgical production of objects, specifically tubes, rods, or the like, wherein a metal and/or metal alloy powder is charged into a thin-walled capsule is provided. The capsule is closed and exposed to a cold-isostatic pressure so as to form a compression of the capsule for subsequent hot-working, specifically hot extrusion. Prior to the cold-isostatic pressure, a mixture of nitrogen and hydrogen is introduced into the capsule together with the powder of metal and/or metal alloys. Simultaneously, pre-compaction of the powder is created by way of vibration or the like, to a density of approximately 60 t0 80% such as, in particular 70% of the theoretical density. After the cold-isostatic pressing step, the capsule is subjected to porosity or leakage testing in a vacuum chamber to monitor or establish the escape of hydrogen. Non-leaking capsules or pressings are then heated and subjected to hot-working such as hot extrusion.

摘要翻译： PCT No.PCT / EP88 / 00443 Sec。 371日期1989年1月23日 102（e）日期1989年1月23日PCT提交1988年5月19日PCT公布。 出版物WO88 / 09235 日期：1988年12月1日。一种粉末冶金生产物体，特别是管，棒等的方法，其中将金属和/或金属合金粉末装入薄壁胶囊中。 将胶囊封闭并暴露于冷等静压，以便形成用于后续热加工，特别是热挤压的胶囊的压缩。 在冷等静压之前，将氮和氢的混合物与金属和/或金属合金的粉末一起引入胶囊中。 同时，通过振动等产生粉末的预压实，达到约60t080％的密度，特别是理论密度的70％。 在冷等静压压步骤之后，将胶囊在真空室中进行孔隙率或泄漏测试以监测或建立氢的逸出。 然后将非泄漏的胶囊或压片加热并进行热加工，例如热挤压。

公开(公告)号：US4565668A

公开(公告)日：1986-01-21

申请号：US668296

申请日：1984-11-05

申请人： Christer Aslund ,  Claes Tornberg

发明人： Christer Aslund ,  Claes Tornberg

IPC分类号： B22F3/04 ,  B22F3/12 ,  B22F5/12 ,  B28B3/00 ,  B30B11/00 ,  C04B35/64 ,  C04B35/645 ,  B22F1/00

CPC分类号： B22F3/04 ,  B22F3/1233 ,  B22F3/1241 ,  Y10S29/031 ,  Y10T428/1359 ,  Y10T428/2975

摘要： A method of making powder-metallurgical articles, in which powder of metal and/or metal alloys is filled into a thin-walled casing, whereupon the casing is closed and subjected to cold-isostatic pressure. Thereby the powder within the casing is compacted to form a strong or, respectively, dimensionally stable article. When the casing wall includes a joining weld seam, said casing wall is provided with an elastically expandable layer in the close vicinity of the weld seam in order to prevent formation of a fold, preferably in such a way that an approximately uniform prestress is applied to the wall surface.

摘要翻译： 一种制造粉末冶金制品的方法，其中将金属和/或金属合金的粉末填充到薄壁壳体中，由此封闭壳体并进行冷等静压。 因此，壳体内的粉末被压实以形成强的或分别尺寸稳定的制品。 当壳体壁包括接合焊缝时，所述壳体壁在焊缝附近设置有可弹性膨胀的层，以防止形成折痕，优选地，使得大致均匀的预应力施加到 墙面。