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公开(公告)号：US20160333452A1
公开(公告)日：2016-11-17
申请号：US15155696
申请日：2016-05-16
Applicant: Ormco Corporation
Inventor： Alfred David Johnson , Walter A. Bachmann
CPC classification number: C22F1/006 , B22D7/005 , B22D7/02 , C22C1/02 , C22C9/01 , C22C19/03 , C22F1/002 , C22F1/04 , C22F1/057 , C22F1/08 , C22F1/10 , C30B15/00 , C30B29/52
Abstract: Metal ingots for forming single-crystal shape-memory alloys (SMAs) may be fabricated with high reliability and control by alloying thin layers of material together. In this improved method, a reactive layer (e.g., aluminum) is provided in thin flat layers between layers of other materials (e.g., copper and layers of nickel). When the stacked layers are vacuum heated in a crucible to the melting temperature of the reactive layer, it becomes reactive and chemically bonds to the other layers, and may form eutectics that, as the temperature is further increased, melt homogeneously and congruently at temperatures below the melting temperatures of copper and nickel. Oxidation and evaporation are greatly reduced compared to other methods of alloying, and loss of material from turbulence is minimized.
Abstract translation: 用于形成单晶形状记忆合金（SMA）的金属锭可以通过将薄层材料合金化而具有高可靠性和可控制造。 在这种改进的方法中，在其它材料（例如铜和镍层）的层之间的薄平坦层中提供反应层（例如铝）。 当堆叠层在坩埚中被真空加热至反应层的熔融温度时，其变成反应性并且化学键合到其它层，并且可以形成共晶体，随着温度的进一步增加，熔体均匀且均匀地在低于 铜和镍的熔化温度。 与其他合金化方法相比，氧化和蒸发大大降低，并且使来自湍流的材料的损失最小化。
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公开(公告)号：US20160242873A1
公开(公告)日：2016-08-25
申请号：US15145198
申请日：2016-05-03
Applicant: Ormco Corporation
Inventor： Alfred David Johnson , Sammel Shahrier Alauddin
CPC classification number: A61C7/20 , A61C2201/007 , C22C9/01 , C22F1/006 , C22F1/08
Abstract: Methods are provided for shape-setting hyperelastic, single-crystal shape memory alloy (SMA) material while preserving the hyperelastic properties of the material. A wire or rod of a single crystal shape memory alloy material is heated to an annealing temperature (Ta). While maintained at the annealing temperature, the wire or rod is shaped by driving the wire or rod and a shaping form together into contact with each other, and the shaped wire or rod is quenched in a quenching medium virtually simultaneously with the shaping.
Abstract translation: 提供了形状设计超弹性单晶形状记忆合金（SMA）材料的方法，同时保留了材料的超弹性。 将单晶形状记忆合金材料的线或棒加热至退火温度（Ta）。 在保持退火温度的同时，通过将线或棒和成形形式一起进行接合而将线或棒成形，并且成形的线或棒在淬火介质中与成型实质上同时淬火。
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公开(公告)号：US20150374461A1
公开(公告)日：2015-12-31
申请号：US14844229
申请日：2015-09-03
Applicant: Ormco Corporation
Inventor： Alfred David Johnson
IPC: A61C7/20
Abstract: Dental archwires of single-crystal shape memory alloys, methods of fabrication and apparatus for fabrication. A dental archwire is provided of a hyperelastic, single-crystal shape memory CuAlX alloy, where X is Ni, Mn, Nb, or Be. The dental archwire has a shape-set curved length and either a round diameter of between about 0.013 to about 0.026 inches or a rectangular cross-section with dimensions of between about 0.016 by 0.016 inches and about 0.020 by 0.030 inches.
Abstract translation: 单晶形状记忆合金的牙弓线，制造方法和制造装置。 提供了一种超弹性单晶形状记忆CuAlX合金的牙弓线，其中X是Ni，Mn，Nb或Be。 牙弓线具有形状设定的弯曲长度和约0.013至约0.026英寸的圆形直径或尺寸在约0.016×0.016英寸和约0.020×0.030英寸之间的矩形横截面。
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公开(公告)号：US09127338B2
公开(公告)日：2015-09-08
申请号：US13777216
申请日：2013-02-26
Applicant: Ormco Corporation
Inventor： Alfred David Johnson
Abstract: Dental arches of single-crystal shape memory alloys, methods of fabrication and apparatus for fabrication. The methods include drawing a single crystal of a shape memory alloy from a melt of the alloy. This is followed by heating, forming, and quenching the crystal sufficiently rapid to limit the formation of alloy precipitates to an amount which retains hyperelastic composition and properties of the crystal.
Abstract translation: 单晶形状记忆合金的牙弓，制造方法和制造装置。 所述方法包括从合金的熔体中拉出形状记忆合金的单晶。 随后加热，成形和快速骤冷晶体以将合金沉淀物的形成限制在保持超弹性组合物和晶体性能的量。
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