公开(公告)号：US06214285B1

公开(公告)日：2001-04-10

申请号：US09324158

申请日：1999-06-02

Applicant: Rudger Rubbert ,  Friedrich Riemeier

Inventor： Rudger Rubbert ,  Friedrich Riemeier

IPC: C21D1100

CPC classification number: C22F1/006 ,  A61C7/20 ,  A61C2201/007 ,  C21D1/00 ,  C21D1/70 ,  C21D2201/01 ,  C22F1/183

Abstract: A process for heat treatment of a plastically moldable workpiece, by plastically molding the workpiece at a first temperature to form a shape, mechanically restraining the workpiece by means of form-fitting, bringing the workpiece to a second temperature and subjecting it at least partially to a heat treatment, and removing the workpiece, wherein mechanically restraining the workpiece by means of form-fitting is accomplished by embedding the workpiece in a densely packed pourable embedding material located in a container, wherein the embedding material is stressed. The invention also includes an apparatus for practicing the process.

Abstract translation: 一种用于通过在第一温度下塑性模制工件以形成形状的塑性模塑工件的热处理方法，通过形状配合机械地限制工件，使工件至少部分地接合到 热处理和去除工件，其中通过形状配合机械地限制工件通过将工件嵌入位于容器中的致密填充的可倾倒的嵌入材料中来实现，其中嵌入材料受到应力。 本发明还包括用于实施该过程的装置。

公开(公告)号：US5863360A

公开(公告)日：1999-01-26

申请号：US704635

申请日：1996-11-19

Applicant: John Vivian Wood ,  David Malcolm Grant ,  Sarah Margaret Green

Inventor： John Vivian Wood ,  David Malcolm Grant ,  Sarah Margaret Green

IPC: A61B17/00 ,  A61B17/04 ,  A61B17/06 ,  A61B17/08 ,  A61C7/20 ,  A61F2/00 ,  A61F2/30 ,  A61K6/04 ,  A61L17/00 ,  A61L17/14 ,  C21D7/06 ,  C22F1/00 ,  C22F1/10 ,  C22F1/18 ,  C22C19/03 ,  C22K1/00

CPC classification number: C22F1/10 ,  A61B17/06166 ,  A61C7/20 ,  A61L17/14 ,  C21D7/06 ,  C22F1/006 ,  A61B17/06128 ,  A61B17/083 ,  A61B2017/00849 ,  A61B2017/00867 ,  A61B2017/06171 ,  A61C2201/007 ,  A61F2002/30093 ,  A61F2002/30922 ,  A61F2210/0019 ,  A61L2400/16 ,  A61L2400/18 ,  C21D2201/01

Abstract: A method of treatment of a shape memory alloy involves shot peening of the alloy sample, thereby causing a crystal to amorphous transition of a surface layer of the sample without substantially affecting bulk characteristics of the material, particularly its shape memory behavior and biocompatibility. The method may be used for surface hardening and to reduce coefficients of friction. The method may be advantageously used for treating tissue sutures and orthodontic devices such as dental archwires.

Abstract translation: PCT No.PCT / GB95 / 00486 Sec。 371日期1996年11月19日 102（e）日期1996年11月19日PCT 1995年3月6日PCT PCT。 第WO95 / 23876号公报 日期1995年9月8日一种形状记忆合金的处理方法涉及合金样品的喷丸硬化，从而导致样品表面层的晶体无定形转变，而基本上不影响材料的体积特征，特别是其形状记忆行为 和生物相容性。 该方法可用于表面硬化并降低摩擦系数。 该方法可有利地用于治疗组织缝合线和矫正装置，例如牙弓线。

公开(公告)号：US5419788A

公开(公告)日：1995-05-30

申请号：US164901

申请日：1993-12-10

Applicant: Paul E. Thoma ,  Ming-Yuan Kao ,  Dwight M. Schmitz

Inventor： Paul E. Thoma ,  Ming-Yuan Kao ,  Dwight M. Schmitz

IPC: C22F1/00 ,  C21D8/00

CPC classification number: C22F1/006 ,  C21D2201/01 ,  Y10S420/902

Abstract: The present invention relates to a method for increasing the useful life of a shape memory alloy (SMA) actuator, wherein the SMA element contracts on heating and elongates on cooling under an applied stress and that property is used as an actuating technique. More specifically, the present invention relates to the cooling aspect of the cycle and maintaining a martensite strain on the actuator SMA element at less than about 3% by limiting the upper stress on the element. In the most preferred embodiment, the element is a ribbon actuator prepared from a nickel-titanium SMA alloy.

Abstract translation: 本发明涉及一种用于增加形状记忆合金（SMA）致动器的使用寿命的方法，其中SMA元件在加热时收缩并在施加的应力下冷却时延伸，并且该特性用作致动技术。 更具体地，本发明涉及循环的冷却方面，并且通过限制元件上的上部应力来将致动器SMA元件上的马氏体应变维持在小于约3％。 在最优选的实施例中，元件是由镍 - 钛SMA合金制成的带状致动器。

公开(公告)号：US4918919A

公开(公告)日：1990-04-24

申请号：US383233

申请日：1989-07-19

Applicant: William C. McCoy ,  James E. Small ,  Gregory Cole

Inventor： William C. McCoy ,  James E. Small ,  Gregory Cole

IPC: C21D10/00 ,  C22F1/00 ,  C22F3/00 ,  G11C13/02

CPC classification number: C21D10/00 ,  C22F1/006 ,  C22F3/00 ,  G11C13/02 ,  C21D2201/01

Abstract: A memory element of the present invention is split to minimize the magnitude of electrical current flowing therethrough as the split memory element is being heated to its transitional temperature, thereby permitting the cross-sectional area of the lead wires used to conduct an electric current to the memory element to be minimized. The split memory element includes a tip member and first and second strip members aligned in side-by-side relation. Each of the tip member, first strip member, and second strip member are made of a shape-memory alloy and have a characteristic internal structure. Each strip member includes a shape-memory portion coupled to the tip member, a lead-attachment portion, and partition means for interconnecting the shape-memory and lead-attachment portions. Each partition means has an internal structure which is dissimilar to the characteristic internal structure of the tip member and the first and second strip members so that certain ions originating in the electrically conductive wire lead coupled to the lead-attachment portions are substantially isolated or otherwise contained in the lead-attachment portions to prevent contamination of the shape-memory portions.

Abstract translation: 当分离存储元件被加热到其过渡温度时，分割本发明的存储元件以最小化流过其中的电流的大小，从而允许用于将导线的横截面积传导到 记忆元素被最小化。 分离存储元件包括尖端构件和并排关系对准的第一和第二条形构件。 前端部件，第一带状部件和第二带状部件均由形状记忆合金制成，具有特征性的内部结构。 每个带状构件包括联接到尖端构件的形状记忆部分，引线附接部分和用于互连形状记忆和引导附接部分的分隔装置。 每个分隔装置具有不同于尖端构件和第一和第二条形构件的特征性内部结构的内部结构，使得源自耦合到引线附接部分的导电导线引线中的某些离子基本上被隔离或以其他方式包含 在引线附接部分中以防止形状记忆部分的污染。

公开(公告)号：US4777799A

公开(公告)日：1988-10-18

申请号：US104641

申请日：1987-10-02

Applicant: William C. McCoy ,  Frederick E. Wang ,  James E. Small ,  Gregory A. Cole

Inventor： William C. McCoy ,  Frederick E. Wang ,  James E. Small ,  Gregory A. Cole

IPC: H01R43/02 ,  B23K1/00 ,  C21D10/00 ,  C22C19/03 ,  C22F1/00 ,  C22F3/00 ,  F03G7/06

CPC classification number: C22F3/00 ,  C21D10/00 ,  C22F1/006 ,  C21D2201/01

Abstract: A memory element made of a shape-memory alloy includes lead-attachment and shape-memory portions and a partition interconnecting such portions. The lead-attachment and shape-memory portions are comprised of characteristic internal structures, while the partition is comprised of an internal structure dissimilar to the characteristic internal structure of at least one of the lead-attachment and shape-memory portions. Shape-memory effect characteristics of the shape-memory portion are preserved to maintain the memory function of the memory element by configuring the dissimilar internal structure to block transmigration from the lead-attachment to the shape-memory portions of selected contaminant material existing in the lead-attachment portion. The partition functions as a contaminant filter to control the concentration of contaminant material in the shape-memory portion, thereby enhancing the durability of the memory element. A method is disclosed of altering the first crystalline structure of an uncontaminated memory element to provide the dissimilar, contaminant migration-blocking, internal structure.