公开(公告)号：US5251687A

公开(公告)日：1993-10-12

申请号：US528

申请日：1993-01-04

Applicant: Sankaranarayanan Ashok ,  Harvey P. Cheskis

Inventor： Sankaranarayanan Ashok ,  Harvey P. Cheskis

IPC: B22D11/06 ,  B22D11/124

CPC classification number: B22D11/0631 ,  B22D11/0611

Abstract: A method of casting metal wherein molten metal is deposited on a moving planar substrate to form a strip thereon. The strip is removed from the moving substrate onto an open mesh support prior to the strip becoming completely solidified throughout its thickness. Ideally, the strip is removed as soon as it forms a solidified shell on its bottom which is thick enough not to fracture under the weight of the remaining molten metal. This arrangement overcomes the problem of cooling the bottom surface of the cast metal due to an air gap forming between a solid supporting substrate and the cast metal.

Abstract translation: 一种铸造金属的方法，其中熔融金属沉积在移动的平面基板上以在其上形成条带。 在条带在其整个厚度之间变得完全固化之前，将条带从移动的基底移除到开放的网状支撑上。 理想的情况是，一旦它的底部形成一个固化的壳，其厚度足以在剩余的熔融金属的重量下不会断裂，就将其去除。 这种安排克服了由于在固体支撑基底和铸造金属之间形成气隙而使铸造金属的底面冷却的问题。

公开(公告)号：US5148855A

公开(公告)日：1992-09-22

申请号：US576863

申请日：1990-09-04

Applicant: Sankaranarayanan Ashok

Inventor： Sankaranarayanan Ashok

IPC: B22D11/06

CPC classification number: B22D11/0631 ,  B22D11/064

Abstract: A casting system for casting molten metal into a continuous solidified strip. A source of molten metal is fed onto a tundish which is interposed between the source of molten metal and a continuous substrate system preferably in the form of a continuous belt. The tundish directs the molten metal onto the moving belt in a direction toward the upstream end thereof so that it is moving in a direction opposed to the direction of the belt. This method of feeding the melt onto the belt results in less turbulance, a dampening of the molten metal and a spreading of the material across the width of the belt.

Abstract translation: 用于将熔融金属铸造成连续固化带的铸造系统。 熔融金属源被供给到介于熔融金属源和连续衬底系统之间的中间包，优选地以连续带的形式。 中间包将熔融金属沿着朝向其上游端的方向引导到移动带上，使其沿与带的方向相反的方向移动。 将熔体供给到带上的这种方法导致较少的湍流，熔融金属的阻尼和材料在带的宽度上的扩散。

公开(公告)号：US4961457A

公开(公告)日：1990-10-09

申请号：US332182

申请日：1989-04-03

Applicant: William G. Watson ,  Sankaranarayanan Ashok

Inventor： William G. Watson ,  Sankaranarayanan Ashok

IPC: B22D23/00 ,  C22C1/10 ,  C23C4/12

CPC classification number: B22D23/003 ,  C22C1/1042 ,  C23C4/123

Abstract: An effective amount of a reactive metal which reacts whith the spray casting atmosphere but not with the desired alloy is dissolved into the alloy prior to spray casting. Preferred reactive metals readily form a nitride which is finely dispersed throughout the spray cast alloy.

Abstract translation: 在喷射浇铸之前，将有效量的反应性金属与喷雾浇注气体反应而不与期望的合金反应溶解在合金中。 优选的反应性金属容易形成氮化物，该氮化物被细分散在整个喷铸合金中。

公开(公告)号：US4953382A

公开(公告)日：1990-09-04

申请号：US447762

申请日：1989-12-08

Applicant: Sankaranarayanan Ashok ,  Harvey P. Cheskis ,  Eugene Shapiro

Inventor： Sankaranarayanan Ashok ,  Harvey P. Cheskis ,  Eugene Shapiro

IPC: B21C23/00

CPC classification number: B21C23/005

Abstract: A metal extrusion process and apparatus therefor in which a strip material of a rectangular shape may be produced by maintaining frictional engagement of the metal by passageway-defining surfaces of a member which is moved toward a die such that the frictional drag of the passageway-defining surfaces urges the metal through the die. The process utilizes strip material as the starting material which enables the extrusion of metal strip by the frictional drag process to be accomplished.

Abstract translation: 一种金属挤压工艺及其设备，其中可以通过保持与朝向模具移动的构件的通道限定表面保持金属的摩擦接合来制造矩形形状的带状材料，使得通道限定 表面通过模具推动金属。 该方法利用条带材料作为起始材料，其能够通过摩擦阻力过程来挤出金属带。

公开(公告)号：US4907639A

公开(公告)日：1990-03-13

申请号：US322434

申请日：1989-03-13

Applicant: Sankaranarayanan Ashok ,  Thomas J. Melillo

Inventor： Sankaranarayanan Ashok ,  Thomas J. Melillo

IPC: B05B5/00 ,  B05B7/16 ,  B22D23/00 ,  B22F3/115 ,  B22F9/08

CPC classification number: B22F9/082 ,  B05B5/00 ,  B05B7/1606 ,  B22D23/003 ,  B22F3/115 ,  B22F9/08 ,  B22F2009/0808 ,  B22F2009/088 ,  B22F2009/0892 ,  B22F2998/00 ,  B22F2999/00

Abstract: A molten metal gas-atomizing spray-depositing apparatus employs an asymmetrical gas-atomizing device for generating one-sided shear forces for breaking-up and atomizing a stream of molten metal into metal particles in a divergent spray pattern of higher mass density at an upstream leading peripheral portion of the spray pattern, relative to the direction of movement of a substrate, than either of a center region or downstream trailing peripheral region of the pattern.

Abstract translation: 熔融金属气体雾化喷雾沉积装置采用不对称气体雾化装置，用于产生单侧剪切力，以在上游处以高质量密度的发散喷雾模式将熔融金属流分解和雾化成金属颗粒 相对于基板的移动方向，喷射图案的引导周边部分比图案的中心区域或下游尾部周边区域中的任何一个。

公开(公告)号：US4822693A

公开(公告)日：1989-04-18

申请号：US28846

申请日：1987-03-23

Applicant: Sankaranarayanan Ashok ,  Jacob Crane ,  Julius C. Fister

Inventor： Sankaranarayanan Ashok ,  Jacob Crane ,  Julius C. Fister

IPC: C22C9/06 ,  C22C38/08 ,  H01L23/14 ,  H01L23/373 ,  H05K1/05 ,  B32B15/02

CPC classification number: H01L23/3736 ,  C22C38/08 ,  C22C9/06 ,  H01L23/142 ,  H05K1/05 ,  H01L2924/0002 ,  Y10T428/12486

Abstract: The present invention relates to copper-iron-nickel composite materials having utility in electronic applications because of their low coefficients of expansion and high thermal conductivities. Composite materials in accordance with the present invention consist essentially of about 10% to 80% copper and the balance iron plus nickel with the ratio of iron to nickel being in the range of from about 1.5:1 to about 2.0:1. Preferred composite materials have an iron to nickel ratio in the range of from about 1.6:1 to about 1.9:1.

Abstract translation: 本发明涉及由于其低膨胀系数和高导热性而在电子应用中具有应用的铜 - 铁 - 镍复合材料。 根据本发明的复合材料基本上由约10％至80％的铜和余量的铁加镍组成，铁与镍的比例在约1.5:1至约2.0:1的范围内。 优选的复合材料具有在约1.6:1至约1.9:1范围内的铁与镍之比。

公开(公告)号：US5240061A

公开(公告)日：1993-08-31

申请号：US898650

申请日：1992-07-24

Applicant: W. Gary Watson ,  Harvey P. Cheskis ,  Sankaranarayanan Ashok ,  Charles R. Pratt

Inventor： W. Gary Watson ,  Harvey P. Cheskis ,  Sankaranarayanan Ashok ,  Charles R. Pratt

IPC: B22D23/00 ,  B22F3/115 ,  C23C4/12

CPC classification number: B22D23/003 ,  B22F3/115 ,  C23C4/123

Abstract: A molten metal gas-atomizing spray-depositing apparatus has an atomizer which employs a pressurized gas flow for atomizing a stream of molten metal into a spray pattern of metal particles being initially hotter than the solidus temperature of the metal. The apparatus also has a substrate system which includes an outer substrate of metallic foil and an inner substrate for supporting the outer substrate. The outer foil substrate is movable relative to the metal particles in the spray pattern thereof and disposed below the atomizer for receiving on a surface of the foil a deposit of the particles in the spray pattern to form a product on the outer foil substrate. The outer foil substrate is of a thickness which is less than a predefined maximum thickness at which the capacity of the foil to absorb heat from the deposit is equal to the latent heat and super heat, if present, of the deposit. The foil thickness precludes reduction in temperature below the solidus temperature, and thereby complete solidification, of the metal particles forming the deposit upon initial contact with the foil surface whereby a reduction of porosity is achieved in the deposit.

Abstract translation: 熔融金属气体雾化喷雾沉积设备具有雾化器，其使用加压气流将熔融金属流雾化成最初比金属的固相线温度高的金属颗粒的喷射图案。 该装置还具有包括金属箔的外基板和用于支撑外基板的内基板的基板系统。 外箔基材可以相对于金属颗粒以其喷射图案移动，并且设置在雾化器下方，用于在箔的表面上接收颗粒沉积在喷涂图案中以在外箔基材上形成产品。 外箔基板的厚度小于预定的最大厚度，在该最大厚度处，从沉积物吸收热量的箔的容量等于沉积物的潜热和超热（如果存在）。 箔厚度排除了低于固相线温度的温度降低，从而在与箔表面初始接触时形成沉积物的金属颗粒完全固化，由此在沉积物中实现孔隙率的降低。

公开(公告)号：US5131451A

公开(公告)日：1992-07-21

申请号：US628074

申请日：1990-12-14

Applicant: Sankaranarayanan Ashok ,  Harvey P. Cheskis

Inventor： Sankaranarayanan Ashok ,  Harvey P. Cheskis

IPC: B22D11/06 ,  B22D23/00 ,  C23C4/12

CPC classification number: B22D23/003 ,  B22D11/0631 ,  C23C4/123

Abstract: A method and apparatus for the casting of metals in which a molten stream of metal is atomized into a spray of highly liquid droplets. The droplets are deposited on a moving substrate such as an endless belt provided with side dams. The droplets flow in a direction transverse to the direction of movement of the substrate and are contained by the side dams. The droplets may have an average size of 300 microns and the spray may have a liquid to solid ratio of at least 50%. This arrangement overcomes the problems of splashing and turbulence caused by the relative flow between the melt and the belt in regular belt casting and overcomes porosity problems associated with spray casting.

Abstract translation: 一种用于铸造金属的方法和装置，其中熔融的金属流被雾化成高度液滴的喷雾。 液滴沉积在移动的基底上，例如设有侧坝的环形带。 液滴在与基板的运动方向相交的方向上流动，并由侧坝容纳。 液滴可以具有300微米的平均尺寸，并且喷雾可以具有至少50％的液体与固体之比。 这种布置克服了在常规带铸造中由熔体和带之间的相对流动引起的飞溅和湍流的问题，并且克服了与喷射浇铸有关的孔隙度问题。

公开(公告)号：US4971133A

公开(公告)日：1990-11-20

申请号：US332183

申请日：1989-04-03

Applicant: Sankaranarayanan Ashok ,  William G. Watson ,  Brian Mravic ,  Harvey P. Cheskis

Inventor： Sankaranarayanan Ashok ,  William G. Watson ,  Brian Mravic ,  Harvey P. Cheskis

IPC: B22D11/06 ,  B22D23/00 ,  C23C4/12

CPC classification number: B22D23/003 ,  B22D11/0631 ,  C23C4/123

Abstract: The average diameter of atomized droplets is reduced thereby reducing both the frequency of collisions between droplets as well as the turbulence at the liquid/solid interface. Reducing the porosity of a spray cast deposit leads to improvements in both the ductility and the electrical conductivity of the deposit.

Abstract translation: 雾化液滴的平均直径减小，从而降低液滴之间碰撞的频率以及液/固界面处的紊流。 降低喷雾沉积物的孔隙率导致沉积物的延展性和导电性的改善。

公开(公告)号：US4960752A

公开(公告)日：1990-10-02

申请号：US315864

申请日：1989-02-27

Applicant: Sankaranarayanan Ashok ,  William G. Watson

Inventor： Sankaranarayanan Ashok ,  William G. Watson

IPC: H01L39/24

CPC classification number: H01L39/2445 ,  Y10S505/733 ,  Y10S505/78

Abstract: A method to manufacture bulk polycrystalline superconducting materials having properties closely related to the properties of a single crystal of the superconducting material is provided. The method includes forming an oriented anisotropic structure by spray casting an atomized precursor onto a ceramic substrate. The precursor may be atomized in a neutral atmosphere and the resultant structure oxidized. In another embodiment, the precursor is atomized in an oxidizing atmosphere and the subsequent oxidation step may be omitted.

Abstract translation: 提供了制造具有与超导材料的单晶的性质密切相关的特性的体多晶超导材料的方法。 该方法包括通过将雾化的前体喷雾浇铸到陶瓷衬底上来形成取向的各向异性结构。 前体可以在中性气氛中雾化，并且所得结构被氧化。 在另一个实施方案中，前体在氧化气氛中被雾化，随后的氧化步骤可以省略。