公开(公告)号：US5312648A

公开(公告)日：1994-05-17

申请号：US755127

申请日：1991-09-05

申请人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Evgenii V. Vlasov ,  Alfredo Riviere V. ,  Julian Szekely ,  Navtej S. Saluja

发明人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Evgenii V. Vlasov ,  Alfredo Riviere V. ,  Julian Szekely ,  Navtej S. Saluja

IPC分类号： B01J2/00 ,  B22F1/02 ,  B22F9/04 ,  C22C1/00 ,  C23C24/04 ,  B05D3/12

CPC分类号： B22F9/04 ,  B22F1/025 ,  C23C24/04

摘要： A metal-coated particle is prepared by providing a disintegrator apparatus with a working chamber containing counter-rotating disks equipped with teeth design to accelerate particles towards one another, providing a first material and a second metal as powders, such that the first material is harder than the second metal and introducing the first material and second metal powders into the working chamber of the disintegrator apparatus, whereby the soft second metal collides with the hard material and is coated onto the surface of the hard first material. A metal-coated metal with an intermetallic interface is prepared by introducing a first material and a second metal as powders into a disintegrator working chamber containing counter-rotating disks and teeth designed to accelerate particles towards one another. The first material harder than the second metal and is capable of reacting with the second metal to form an intermetallic compound. The disks of the disintegrator are counter-rotted so as to cause the metal powders to collide with each other, whereby the hard metal powder is mechanically coated by second metal. The rate of rotation of the counter-rotating disks are further increased in a high velocity process whereby high local temperatures generated on impact cause a reaction to occur at the first material/second metal interface to form an intermetallic compound.

摘要翻译： 通过提供具有工作室的分解器装置来制备金属涂覆的颗粒，所述工作室包含配备有齿设计的反向旋转盘，以将颗粒朝向彼此加速，提供第一材料和第二金属作为粉末，使得第一材料更硬 并且将第一材料和第二金属粉末引入到粉碎装置的工作室中，由此软的第二金属与硬质材料碰撞并涂覆在硬质材料的表面上。 通过将第一材料和第二金属作为粉末引入到包含反向旋转盘和设计用于将颗粒朝向彼此加速的齿的分解器工作室中来制备具有金属间界面的金属涂覆的金属。 所述第一材料比所述第二金属硬，并且能够与所述第二金属反应以形成金属间化合物。 粉碎机的盘被反转以使金属粉末彼此碰撞，由此硬金属粉末被第二金属机械地涂覆。 反转盘的旋转速度在高速过程中进一步增加，由此在冲击下产生的高局部温度导致在第一材料/第二金属界面处发生反应以形成金属间化合物。

公开(公告)号：US5302182A

公开(公告)日：1994-04-12

申请号：US755074

申请日：1991-09-05

申请人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Alfredo Riviere V. ,  Julian Szekely ,  Navtej S. Saluja

发明人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Alfredo Riviere V. ,  Julian Szekely ,  Navtej S. Saluja

IPC分类号： B01J2/12 ,  B22F9/10 ,  B05B3/02

CPC分类号： B22F9/10 ,  B01J2/12

摘要： The method for preparing metal powders with a narrow particle size distribution includes providing a disintegrator with a working chamber containing counter-rotating disks equipped with teeth designed to impart high tangential velocities to particles contacting the teeth, introducing a metal melt as a liquid stream with a composition substantially corresponding to the final metal powder composition into the working chamber of the disintegrator, counter-rotating the disks, whereby the liquid stream of metal entering the chamber is broken up into small beads, which leave the surface of the teeth with high velocities, and whereby subsequent contact of the beads with the teeth of the disks further break up the liquid beads until the bead solidifies by heat loss to the disks and collecting a fine metal powder of narrow particle size distribution at the exit end of the working chamber.

摘要翻译： 用于制备具有窄粒度分布的金属粉末的方法包括提供具有工作室的分解器，该工作室包含配备有齿的反向旋转盘，其设计成赋予与齿接触的颗粒高的切向速度，将金属熔体作为液体流引入 组合物基本上对应于最终的金属粉末组合物进入粉碎机的工作室，使盘反向旋转，由此进入腔室的金属液流被分解成小的珠粒，这些小珠子以高速度离开牙齿的表面， 并且由此珠与盘的齿的后续接触进一步破坏液体珠，直到珠通过热损失固化到盘并且在工作室的出口端收集窄粒度分布的细金属粉末。

公开(公告)号：US5240066A

公开(公告)日：1993-08-31

申请号：US766034

申请日：1991-09-26

申请人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Alfredo Riviere V. ,  Julian Szekely ,  Navtej S. Saluja

发明人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Alfredo Riviere V. ,  Julian Szekely ,  Navtej S. Saluja

IPC分类号： B21C1/00 ,  B22D11/00 ,  B22D11/06 ,  C03B37/026

CPC分类号： B22D11/005 ,  B21C1/00 ,  C03B37/026

摘要： A method for preparing glass-coated microwires is provided. A metal in a glass tube is superheated in a high frequency induction field, whereby the glass tube softens. A thin capillary tube is drawn from the softened glass and the glass tube fills with molten metal. The metal-filled capillary enters a cooling zone in the superheated state and the rate of cooling is controlled such that a microcrystalline or amorphous metal microstructure is obtained. The cooling zone includes a stream of cooling liquid through which the capillary passes. The microstructure of the microwire is controlled by choice of amorphisizers, cooling rate, nature of the cooling liquid, location of the cooling stream, dwell time in the cooling stream and degree of superheating and supercooling of the metal.

摘要翻译： 提供了一种制备玻璃包覆微丝的方法。 玻璃管中的金属在高频感应场中过热，由此玻璃管软化。 从软化玻璃中抽出细毛细管，玻璃管充满熔融金属。 金属填充的毛细管进入过热状态的冷却区，并且控制冷却速率，从而获得微晶或非晶金属微结构。 冷却区包括毛细管通过的冷却液流。 微丝的微观结构通过选择无焰化，冷却速度，冷却液的性质，冷却流的位置，冷却流中的停留时间以及金属的过热和过冷度来控制。

公开(公告)号：US5165609A

公开(公告)日：1992-11-24

申请号：US755071

申请日：1991-09-05

申请人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Alfredo Riviere V. ,  Julian Szekely ,  Navtej S. Saluja

发明人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Alfredo Riviere V. ,  Julian Szekely ,  Navtej S. Saluja

IPC分类号： B22F1/02 ,  B22F9/04

CPC分类号： B22F9/04 ,  B22F1/025

摘要： The method of preparing metal-coated metals includes providing a metal powder and a disintegrator with a working chamber equipped with counter-rotating disks. At least one of said disks is made of a material softer than said metal powder. The metal powder is introduced into the working chamber and the disks of the disintegrator are counter-rotated so as to cause the metal powder to strike the disks, whereby the disk is eroded by the colliding metal particles and a coating of the eroded material is formed on the metal powder and the metal-coated metal particles are collected at the exit end of the disintegrator.

摘要翻译： 制备金属涂覆的金属的方法包括提供金属粉末和崩解器，其具有装备有反向旋转盘的工作室。 所述盘中的至少一个由比所述金属粉末更软的材料制成。 将金属粉末引入到工作室中，并且将崩解器的盘反向旋转，以使金属粉末撞击盘，由此，由于碰撞的金属颗粒被破坏，形成侵蚀材料的涂层 在金属粉末和金属涂覆的金属颗粒在分解器的出口端收集。

公开(公告)号：US5204302A

公开(公告)日：1993-04-20

申请号：US755076

申请日：1991-09-05

申请人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Alfredo R. V. ,  Julian Szekely ,  Navtej S. Saluja

发明人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Alfredo R. V. ,  Julian Szekely ,  Navtej S. Saluja

IPC分类号： B01D53/94 ,  B01J21/04 ,  B01J21/06 ,  B01J21/10 ,  B01J23/02 ,  B01J23/10 ,  B01J23/14 ,  B01J23/22 ,  B01J23/26 ,  B01J23/34 ,  B01J23/72 ,  B01J23/74 ,  B01J23/745 ,  B01J23/75 ,  B01J23/755 ,  B01J23/889 ,  B01J29/076 ,  B01J35/04 ,  B01J37/02 ,  B01J37/34

CPC分类号： B01D53/945 ,  B01J37/0225 ,  B01J37/0244 ,  B01J37/349 ,  B01D2255/902 ,  B01J23/34 ,  B01J23/8892 ,  Y02T10/22

摘要： A multi-layered catalyst on a metal substrate and a method for its preparation is provided. The catalyst includes a substrate, an adhesive sublayer whose improved adhesion to the substrate is obtained by the formation of a diffusion layer between the substrate and adhesive layer, a catalytically active layer deposited on the adhesive sublayer characterized by a smooth compositional gradient of the catalytically active component such that the catalytically active layer ranges from substantially 0.0 wt % at the adhesive sublayer interface to substantially 100 wt % at the outermost portion of the catalytically active layer and a porous layer containing at least the catalytically active component. An activator coating can be applied to the porous layer. The catalyst is prepared by plasma spraying a thermally reactive powder onto the substrate to form the adhesive sublayer, whereby the heat generated by the thermally reactive powders causes diffusion of the sublayer into the substrate and a diffusion bonded layer is formed resulting in a strong adhesion of the sublayer to the substrate, subsequently introducing at least alumina and a second powder into a plasma torch at separately controllable variable feed rates and co-depositing alumina and the second powder, adjusting the relative feed rates of alumina and second powder into the plasma torch such that a catalytically active layer with a smooth compositional gradient is achieved, whereby the alumina content of the catalytically active layer ranges from substantially 0 wt % at the adhesive sublayer interface to substantially 100 wt % at the uppermost portion of the catalytically active layer, subsequently introducing at least alumina and an additional metal carbonate or hydroxide into the plasma torch; and co-depositing a porous layer of at least alumina and the additional metal carbonate or hydroxide, whereby the metal carbonate or hydroxide decomposes with a release of gas or vapor resulting in an outer coating with a high surface area.

公开(公告)号：US5362523A

公开(公告)日：1994-11-08

申请号：US980132

申请日：1992-11-23

申请人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Alfredo V. Riviere ,  Julian Szekely ,  Navtej S. Saluja

发明人： Igor V. Gorynin ,  Boris V. Farmakovsky ,  Alexander P. Khinsky ,  Karina V. Kalogina ,  Alfredo V. Riviere ,  Julian Szekely ,  Navtej S. Saluja

IPC分类号： C23C4/02 ,  C23C4/12 ,  B05D1/12

CPC分类号： C23C4/02 ,  Y10T428/12458

摘要： The method for preparing a coating with a continuous compositional gradient includes introducing at least first and second powders into a plasma torch at separately controllable variable feed rates for each powder and co-depositing the at least first and second powders on the substrate and adjusting the relative feed rates of the first and second powders such that a smooth continuous compositional grading is achieved in the coating. The compositional gradient can follow a linear, exponential or variable function. A sublayer may be deposited onto the substrate prior to deposition of the compositionally graded layer. Additional materials that impart other desirable properties to the layer can be added with the layer or applied after deposition of the layer. Choice of atmosphere during deposition include vacuum, inert atmosphere, and oxidizing, carburizing and boriding atmospheres.

摘要翻译： 用于制备具有连续组成梯度的涂层的方法包括将至少第一和第二粉末引入等离子体焰炬中，以分别控制的每种粉末的可变进料速率并将至少第一和第二粉末共沉积在衬底上并调节相对 第一和第二粉末的进料速率使得在涂层中实现平滑的连续成分分级。 组成梯度可以遵循线性，指数或可变函数。 在沉积组成分级层之前，可以在衬底上沉积子层。 赋予层其它所需性质的附加材料可以加入该层或在该层沉积之后施加。 沉积期间气氛的选择包括真空，惰性气氛和氧化，渗碳和硼化气氛。

公开(公告)号：US5820940A

公开(公告)日：1998-10-13

申请号：US080648

申请日：1993-06-21

申请人： Igor Vasilievich Gorynin ,  Boris Vladimirovich Farmakovsky ,  Alexander Pavlovich Khinsky ,  Karina Vasilievna Kalogina ,  Alfredo Riviere V. ,  Julian Szekely ,  Navtej Singh Saluja

发明人： Igor Vasilievich Gorynin ,  Boris Vladimirovich Farmakovsky ,  Alexander Pavlovich Khinsky ,  Karina Vasilievna Kalogina ,  Alfredo Riviere V. ,  Julian Szekely ,  Navtej Singh Saluja

IPC分类号： C23C4/08 ,  C23C4/12 ,  B05D3/12

CPC分类号： C23C4/08 ,  C23C4/134

摘要： The method of preparing an adhesive layer on a substrate includes introducing a thermally reactive powder comprising aluminum and a second metal into a plasma torch, wherein the thermally reactive powder is substantially free of binder, additive and contaminant and does not contain a significant amount of intermetallic compound into a plasma torch. An exothermic reaction is initiated within the thermally reactive powders in the plasma torch and the exotherming powders impinge onto a substrate, such that the heat generated by the exothermic reaction is generated predominantly on the substrate.

摘要翻译： 在基材上制备粘合剂层的方法包括将包含铝和第二金属的热反应性粉末引入等离子体焰炬中，其中热反应性粉末基本上不含粘合剂，添加剂和污染物，并且不含有显着量的金属间化合物 复合成等离子体焰炬。 在等离子体焰炬内的热反应性粉末中引发放热反应，并且放热粉末撞击到衬底上，使得由放热反应产生的热主要在衬底上产生。

公开(公告)号：US5196085A

公开(公告)日：1993-03-23

申请号：US635947

申请日：1990-12-28

申请人： Julian Szekely ,  Olusegun J. Ilegbusi

发明人： Julian Szekely ,  Olusegun J. Ilegbusi

IPC分类号： C30B15/30

CPC分类号： C30B15/305 ,  Y10T117/1032

摘要： Improved Czochralski crystal growth apparatuses with bulk melt electromagnetic stirring and external axial magnetic fields selectively applied to a melt/growing crystal interface are provided. Such apparatuses are particularly well-suited for continuous feed growth processes.

摘要翻译： 提供了具有大量熔融电磁搅拌和外部轴向磁场的改进的Czochralski晶体生长装置，其选择性地施加到熔融/生长晶体界面。 这种装置特别适用于连续饲料生长过程。

公开(公告)号：US4933005A

公开(公告)日：1990-06-12

申请号：US395973

申请日：1989-08-21

申请人： Joseph A. Mulcahy ,  Julian Szekely

发明人： Joseph A. Mulcahy ,  Julian Szekely

IPC分类号： B22D11/115

CPC分类号： B22D11/115

摘要： A static high intensity magnetic field is applied to electromagnetically-stirred molten metal to minimize turbulence in the molten metal. One application of the invention is to minimize meniscus distortions and/or surface disturbances produced by the electromagnetic stirring at a free surface. Another application is to improve laminar flow in the entrance to horizontal molds.

摘要翻译： 将静态高强度磁场施加到电磁搅拌的熔融金属上以最小化熔融金属中的湍流。 本发明的一个应用是使在自由表面上的电磁搅拌产生的弯月面失真和/或表面扰动最小化。 另一个应用是改善水平模具入口处的层流。

公开(公告)号：US4306901A

公开(公告)日：1981-12-22

申请号：US153804

申请日：1980-05-27

申请人： Julian Szekely ,  Gregory J. Yurek

发明人： Julian Szekely ,  Gregory J. Yurek

IPC分类号： C21B13/14 ,  C22C33/02 ,  B22F1/00

CPC分类号： C22C33/0235 ,  C21B13/146 ,  Y02P10/136

摘要： Steel is made from iron ore by comminuting the ore and recovering a particle fraction which has a size less than 50 microns. The iron rich particles then are reduced to form iron or magnetite and are beneficiated by magnetic separation. The magnetite particles are further reduced to form small size iron particles. The iron powders produced by these processes are then processed by powder metallurgical techniques.

摘要翻译： 钢通过粉碎矿石并回收尺寸小于50微米的颗粒级分由铁矿石制成。 然后将富铁颗粒还原成铁或磁铁矿，并通过磁选分选。 进一步减少磁铁矿颗粒以形成小尺寸的铁颗粒。 然后通过这些方法生产的铁粉通过粉末冶金技术加工。