公开(公告)号：US06461403B1

公开(公告)日：2002-10-08

申请号：US09698271

申请日：2000-10-30

申请人： Kristian P. Olsen

发明人： Kristian P. Olsen

IPC分类号： B22F908

CPC分类号： B22F9/06 ,  B22F9/08 ,  B22F2009/086 ,  B22F2998/00 ,  B22F2999/00 ,  C22C1/1042 ,  B22F1/0048 ,  B22F2202/01

摘要： The present invention relates to an apparatus and method for the formation of nearly spherical particles, particularly for the formation of metal or metal alloy particles with an induced duplex microstructure. The present invention provides an atomization apparatus having a nozzle positioned at the bottom of a cooling chamber. Rayleigh wave instability may be induced by imparting vibrations to a stream of molten material, which is released under positive pressure upward into a cooling chamber where the stream breaks up into substantially spherical droplets. This produces a plurality of uniform droplets, each droplet having an initial velocity sufficient to follow a unique upward parabolic trajectory above the aperture. These parabolic trajectories carry the individual droplets to a chill body disposed within the cooling chamber, with which they impact while they are at least partially molten.

摘要翻译： 本发明涉及一种用于形成近似球形的颗粒的装置和方法，特别是用于形成具有诱导的双相组织的金属或金属合金颗粒。 本发明提供一种具有位于冷却室底部的喷嘴的雾化装置。 可以通过向熔融材料流施加振动来引起瑞利波不稳定性，其在正向压力下向上释放到冷却室中，其中流分解成基本上球形的液滴。 这产生多个均匀的液滴，每个液滴具有足以跟随孔上方的独特向上抛物线轨迹的初始速度。 这些抛物线轨迹将各个液滴携带到设置在冷却室内的冷却体上，当它们至少部分熔融时，它们受到冲击。

公开(公告)号：US06287444B1

公开(公告)日：2001-09-11

申请号：US09509803

申请日：2000-05-10

申请人： Takeshi Nishiuchi ,  Kohshi Yoshimura ,  Fumiaki Kikui

发明人： Takeshi Nishiuchi ,  Kohshi Yoshimura ,  Fumiaki Kikui

IPC分类号： C25D502

CPC分类号： B23K35/0244 ,  B22F1/025 ,  B22F9/16 ,  B22F2998/00 ,  B22F2998/10 ,  C25D7/00 ,  C25D17/16 ,  B22F1/0048 ,  B22F2009/046 ,  B22F9/06 ,  B22F9/04

摘要： An efficient method for producing a high-precision, very small metal ball, such as a Cu ball having an outer diameter not greater than 1 mm, comprising the steps of: cutting metal wire having a diameter not greater than 0.3 mm into a predetermined length; melting and solidifying the metal wires to form starting metal pieces (11); charging a plating apparatus having a double-tank structure comprising an outer splash-proofing tank (8) and an inner plating tank (3), comprising a cathode (4) located at a horizontally turning peripheral portion and an anode centrally located inside the tank; turning the inner tank (3) in a forward and reverse direction while plating solution is discharged to the outer tank (8) due to a high speed rotation of the inner tank at 50 to 800 rpm; and electroplating the starting material to form a film of predetermined thickness without generating aggregation of plated product.

摘要翻译： 用于制造高精度，非常小的金属球的有效方法，例如外径不大于1mm的Cu球，包括以下步骤：将直径不大于0.3mm的金属线切割成预定长度 ; 熔化并固化金属丝以形成起始金属片（11）; 对具有包括外防溅水箱（8）和内镀槽（3）的双罐结构的电镀装置进行充电，包括位于水平转动周边部分的阴极（4）和位于罐内的阳极 ; 由于内箱以50〜800rpm的高速旋转，电镀液从外箱8排出时，正向和反向转动内箱3; 并将起始材料电镀以形成预定厚度的膜而不产生电镀产品的聚集。

公开(公告)号：US4774037A

公开(公告)日：1988-09-27

申请号：US911847

申请日：1986-09-26

申请人： Charles D. Hendricks

发明人： Charles D. Hendricks

IPC分类号： B01J2/04 ,  B01J2/18 ,  B01J13/04 ,  B22F1/00 ,  B22F9/06 ,  B22F9/08 ,  B29D22/04 ,  B29D99/00 ,  C03B19/10 ,  C04B38/00 ,  B29B9/10

CPC分类号： B01J2/04 ,  B01J13/04 ,  B01J2/18 ,  B22F1/0051 ,  B22F9/06 ,  B22F9/08 ,  B29D22/04 ,  B29D99/0042 ,  C03B19/1005 ,  C03B19/107 ,  C04B38/009 ,  B22F2009/084 ,  B22F2999/00 ,  B29L2031/54 ,  Y10S376/916 ,  Y10S75/953

摘要： A method is provided for producing commercially large quantities of high melting temperature solid or hollow spherical particles of a predetermined chemical composition and having a uniform and controlled size distribution. An end (18, 50, 90) of a solid or hollow rod (20, 48, 88) of the material is rendered molten by a laser beam (14, 44, 82). Because of this, there is no possibility of the molten rod material becoming contaminated with extraneous material. In various aspects of the invention, an electric field is applied to the molten rod end (18, 90), and/or the molten rod end (50, 90) is vibrated. In a further aspect of the invention, a high-frequency component is added to the electric field applied to the molten end of the rod (90). By controlling the internal pressure of the rod, the rate at which the rod is introduced into the laser beam, the environment of the process, the vibration amplitude and frequency of the molten rod end, the electric field intensity applied to the molten rod end, and the frequency and intensity of the component added to the electric field, the uniformity and size distribution of the solid or hollow spherical particles (122) produced by the inventive method is controlled. The polarity of the electric field applied to the molten rod end can be chosen to eliminate backstreaming electrons, which tend to produce run-away heating in the rod, from the process.

摘要翻译： 提供了用于生产商业上大量具有预定化学组成并具有均匀且受控尺寸分布的高熔点固体或中空球形颗粒的方法。 材料的固体或中空杆（20,48,88）的端部（18,50,90）由激光束（14,44,82）熔化。 因此，熔融棒材料不可能被外来材料污染。 在本发明的各个方面，电场施加到熔融杆端部（18,90）上，和/或熔融杆端部（50,90）振动。 在本发明的另一方面，在施加到杆（90）的熔融端的电场中加入高频分量。 通过控制棒的内部压力，杆被引入激光束的速度，过程的环境，熔融杆端的振动振幅和频率，施加到熔融杆端的电场强度， 并且控制添加到电场中的组分的频率和强度，通过本发明方法产生的固体或中空球形颗粒（122）的均匀性和尺寸分布被控制。 可以选择施加到熔融杆端的电场的极性，以消除电子的逆流，这倾向于在该过程中产生远离加热的电子。

公开(公告)号：US4689075A

公开(公告)日：1987-08-25

申请号：US784304

申请日：1985-10-04

申请人： Masahiro Uda ,  Satoru Ohno

发明人： Masahiro Uda ,  Satoru Ohno

IPC分类号： B01J19/08 ,  B01F3/18 ,  B01J10/00 ,  B22F9/06 ,  B22F9/14 ,  C01B13/32 ,  C01B21/06 ,  C01B21/076 ,  C01B31/30 ,  C22C1/10 ,  C22C1/04

CPC分类号： B82Y30/00 ,  B01J10/005 ,  B22F9/06 ,  B22F9/14 ,  C01B13/326 ,  C01B21/0602 ,  C01B21/0761 ,  C01B31/30 ,  C01B31/305 ,  C22C1/1042 ,  B22F2998/00 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2004/82 ,  C01P2006/80

摘要： A process for producing a mixed ultrafine powder, which comprises reacting at least two metals or ceramics in the molten state with hydrogen, nitrogen, oxygen, a mixture of hydrogen and nitrogen or a mixture of nitrogen and oxygen. Each said gas or gaseous mixture being activated with a hot plasma, in an atmosphere of hydrogen gas, nitrogen gas, oxygen gas, a gaseous mixture of hydrogen and nitrogen, a gaseous mixture of nitrogen and oxygen, or a gaseous mixture of any of said gases with an inert gas under a pressure of 50 torr to 3 atmospheres to form ultrafine particles of said at least two metals or ceramics afloat in the atmospheric gas, and thereafter mixing the floating ultrafine particles of the metals or ceramics by a gas current.

摘要翻译： 一种制备混合超微粉末的方法，其包括使至少两种熔融状态的金属或陶瓷与氢气，氮气，氧气，氢气和氮气的混合物或氮气和氧气的混合物反应。 每种所述气体或气体混合物在氢气，氮气，氧气，氢气和氮气的气体混合物，氮气和氧气的气体混合物或任何所述气体混合物的气体混合物的气氛中用热等离子体活化 气体在50托至3个大气压的压力下形成惰性气体，以形成所述至少两种金属或陶瓷在大气气体中漂浮的超细颗粒，然后通过气流混合金属或陶瓷的漂浮超细颗粒。

公开(公告)号：US4671906A

公开(公告)日：1987-06-09

申请号：US843232

申请日：1986-03-24

申请人： Kazuo Yasue ,  Toshiyuki Nishio ,  Mineo Kosaka

发明人： Kazuo Yasue ,  Toshiyuki Nishio ,  Mineo Kosaka

IPC分类号： B01J12/02 ,  B01J2/04 ,  B01J10/00 ,  B01J19/10 ,  B05B17/06 ,  B22F9/06 ,  B22F9/12 ,  C01B13/32 ,  C01B21/06 ,  C01B31/30 ,  C01F7/42

CPC分类号： B05B17/063 ,  B01J10/005 ,  B01J19/10 ,  B01J2/04 ,  B05B17/0615 ,  B05B17/0623 ,  B22F9/06 ,  C01B13/326 ,  C01B21/06 ,  C01B31/30 ,  C01F7/422 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/61

摘要： A minute metal powder is obtained by a method which comprises melting a metal, imparting ultrasonic vibration to the resulting melt, introducing an inert or reducing gas into the ultrasonically vibrated melt thereby producing minute bubbles therein, allowing cavitation to occur as soon as the bubbles reach the surface of the melt and consequently convert the melt into minute droplets, exposing or not exposing the minute droplets to oxygen, nitrogen, or propane, and solidifying the minute droplets by cooling. An apparatus for working the method described above comprises a metal melting tank, metal feeding means, gas feeding means, an ultrasonic vibration generator, means for detecting and retaining the surface of melt, and means for converting melt into minute droplets and solidifying the minute droplets by cooling.

摘要翻译： 通过以下方法获得微小的金属粉末，该方法包括熔化金属，向所得熔体施加超声波振动，将惰性或还原性气体引入超声波振动熔体中，从而在其中产生微小气泡，一旦气泡到达即可发生气蚀 熔体的表面，从而将熔体转化成微小的液滴，暴露或不将微滴暴露于氧气，氮气或丙烷，并通过冷却固化微滴。 用于上述方法的装置包括金属熔化槽，金属进料装置，气体供给装置，超声波振动发生器，用于检测和保持熔体表面的装置，以及用于将熔体转变成微小液滴并固化微滴的装置 通过冷却。

公开(公告)号：US4638488A

公开(公告)日：1987-01-20

申请号：US767245

申请日：1985-08-20

申请人： Yasunobu Shimomoto

发明人： Yasunobu Shimomoto

IPC分类号： B22F9/06 ,  B22F9/14 ,  F27B3/08 ,  F27D99/00 ,  H05B7/00 ,  H05H1/34 ,  H05H1/40 ,  H05H1/00

CPC分类号： H05B7/00 ,  B22F9/06 ,  B22F9/14 ,  F27B3/08 ,  H05H1/34 ,  F27D2099/0031 ,  H05H1/40

摘要： A toroidal pile of raw material is contained in a toroidal melting pot provided in the lower portion of a furnace and a ring plasma torch is mounted over the toroidal pile of the raw material. A ring plasma arc, driven electromagnetically and rotating azimuthally between the torch and the pile, heats a certain portion of the pile intermittently and periodically. Fine grains are produced in such portion of the pile of raw material that is not heated directly by the plasma arc and collected through a discharge port provided around the major axis of the toroidal melting pot.

摘要翻译： 环形的原料堆包含在设置在炉下部的环形熔池中，并且环形等离子体焰炬安装在原材料的环形堆上。 在手电筒和桩之间电磁旋转和方向旋转的环等离子体弧间歇地和周期地加热堆的某一部分。 在未被等离子体电弧直接加热的原料堆的部分中产生微细颗粒，并通过围绕环形熔池的长轴设置的排出口收集。

公开(公告)号：US4519758A

公开(公告)日：1985-05-28

申请号：US518773

申请日：1983-07-29

申请人： Edward J. Skach, Jr.

发明人： Edward J. Skach, Jr.

IPC分类号： B22F9/06 ,  B01J2/14

CPC分类号： B22F9/06

摘要： A horizontally positioned rotating table is provided with a rotation means, a means for feeding molten material to the topside of the table as it is rotated, a means for cooling the molten material, and a means for scraping the cooled material from the table. This table is especially useful in continuously receiving a molten salt containing molten metal, cooling it to a friable solid, and scraping the friable solid from the table for further processing.

摘要翻译： 水平定位的旋转台设置有旋转装置，用于在熔融材料旋转时将熔融材料供给到工作台的顶侧的装置，用于冷却熔融材料的装置，以及用于从冷却塔上刮下冷却材料的装置。 该表特别适用于连续接收含熔融金属的熔融盐，将其冷却成易碎的固体，并将易碎的固体从工作台上刮下来进一步处理。

公开(公告)号：US4500349A

公开(公告)日：1985-02-19

申请号：US518775

申请日：1983-07-29

申请人： Edward J. Skach, Jr.

发明人： Edward J. Skach, Jr.

IPC分类号： B22F9/06 ,  C22C1/04

CPC分类号： B22F9/06

摘要： Molten salt containing molten metal is continuously feed to the top side of a horizontal rotating table. As the table rotates the mixture is cooled to a friable solid which is then scraped from the table. Salt coated metal granules are produced which are round in shape and not elongated.

摘要翻译： 含有熔融金属的熔盐连续进料到水平旋转台的顶侧。 当桌子旋转时，将混合物冷却至易碎的固体，然后从桌子上刮下。 生产盐状金属颗粒，其形状为圆形且不伸长。

公开(公告)号：US4321086A

公开(公告)日：1982-03-23

申请号：US190948

申请日：1980-09-26

申请人： John H. Perepezko ,  Don H. Rasmussen ,  Carl R. Loper, Jr.

发明人： John H. Perepezko ,  Don H. Rasmussen ,  Carl R. Loper, Jr.

IPC分类号： B22F1/02 ,  B22F9/06 ,  B22F9/08 ,  B22F9/10 ,  C22C1/00 ,  B22D23/08

CPC分类号： B22F9/08 ,  B22F9/06 ,  Y10S75/96

摘要： The preparation of micron sized droplets of high melting point metals by shearing the metal in the molten state into micron sized droplets while in a carrier in the form of a molten inorganic salt, glass or gas, in the presence of an oxidizing agent to form a thin protective coating on the micron sized particles while in their molten state and then allowing the formed micron sized particles to solidify.

摘要翻译： 通过在熔融状态下将金属以熔融无机盐，玻璃或气体的形式在处于氧化剂的存在下的载体中，将熔融状态的金属剪切成微米级的液滴，从而制备微米级的高熔点金属液滴，以形成 薄的保护涂层在微米尺寸的颗粒上，同时处于其熔融状态，然后允许形成的微米级颗粒固化。

公开(公告)号：US3758414A

公开(公告)日：1973-09-11

申请号：US3758414D

申请日：1971-08-19

申请人： WESTERN ELECTRIC CO

发明人： KENNEY J ,  LITT F

IPC分类号： B01J13/00 ,  B22F9/06 ,  C23C5/00

CPC分类号： B01J13/0043 ,  B22F9/06

摘要： A METHOD OF FORMING AND DISPERSING A PLURALITY OF DISCRETE, NON-COALESCING LIQUID METAL PARTICLES IN AN AQUEOUS MEDIUM IS DISCLOSED. AT LEAST ONE LIQUID METAL SOURCE IS COMBINED WITH A STABLE AQUEOUS COLLOIDAL SOLUTION, FORMED BY A CONTROLLED HYDROLYSIS AND NUCLEATION REACTION AND COMPRISING INSOLUBLE HYDROUS OXIDE PARTICLES OF ONE OR MORE SELECTED ELEMENTS, SUCH SOLUTIONS BEING EXEMPLIFIED IN APPLICATION SER. NO. 8,022, FILED FEB. 2, 1970, NOW U.S. PAT. NO. 3,657,003. THE COMBINED SOURCE AND COLLOIDAL SOLUTION ARE THEN SUBJECTED TO A DISPERSIVE FORCE TO (1) FRACTIONATE THE METAL SOURCE TO FORM THE PLURALITY OF LIQUID METAL PARTICLES, AND (2) DISPERSE THE NON-COALESCING PARTICLES WITH THE COLLOIDAL SOLUTION. WHERE THE LIQUID METAL SOURCE IS INITIALLY FRACTIONATED IN A SUITABLE MANNER, THE DISPERSIVE FORCE THEN MERELY DISPERSES THE NON-COALESCING PARTICLES.