Thermoplastic casting of amorphous alloys
    53.
    发明授权
    Thermoplastic casting of amorphous alloys 有权
    非晶合金的热塑性铸造

    公开(公告)号:US07017645B2

    公开(公告)日:2006-03-28

    申请号:US10355490

    申请日:2003-01-31

    IPC分类号: B22D17/10 B22D18/02 B22D11/00

    摘要: A process and apparatus for thermoplastic casting of a suitable glass forming alloy is provided. The method and apparatus comprising thermoplastically casting the alloy in either a continuous or batch process by maintaining the alloy at a temperature in a thermoplastic zone, which is below a temperature, Tnose, (where, the resistance to crystallization is minimum) and above the glass transition temperature, Tg, during the shaping or moulding step, followed by a quenching step where the item is cooled to the ambient temperature. A product formed according to the thermoplastic casting process is also provided.

    摘要翻译: 提供了一种用于热塑性铸造合适的玻璃形成合金的方法和设备。 该方法和设备包括通过将合金保持在低于温度T T的热塑性区域的温度下,以连续或间歇的方式热塑性铸造合金(其中, 结晶最小)和高于成型或模制步骤期间的玻璃化转变温度Tg,随后是将物品冷却至环境温度的骤冷步骤。 还提供了根据热塑性铸造工艺形成的产品。

    Replication of surface features from a master model to an amorphous
metallic article
    55.
    发明授权
    Replication of surface features from a master model to an amorphous metallic article 失效
    将表面特征从主模型复制到非晶金属制品

    公开(公告)号:US5950704A

    公开(公告)日:1999-09-14

    申请号:US683320

    申请日:1996-07-18

    IPC分类号: B22D23/00

    CPC分类号: B22D23/00

    摘要: The surface features of an article are replicated by preparing a master model having a preselected surface feature thereon which is to be replicated, and replicating the preselected surface feature of the master model. The replication is accomplished by providing a piece of a bulk-solidifying amorphous metallic alloy, contacting the piece of the bulk-solidifying amorphous metallic alloy to the surface of the master model at an elevated replication temperature to transfer a negative copy of the preselected surface feature of the master model to the piece, and separating the piece having the negative copy of the preselected surface feature from the master model.

    摘要翻译: 通过准备具有要复制的预选表面特征的主模型并复制主模型的预选表面特征来复制制品的表面特征。 复制是通过提供一块块状固化的非晶态金属合金来实现的,该非晶金属合金在升高的复制温度下将大块固化的非晶态金属合金的片与主模型的表面接触,以传递预选表面特征的负副本 的主模型,并将具有预选表面特征的负副本的部分与主模型分离。

    Die-formed amorphous metallic articles and their fabrication
    56.
    发明授权
    Die-formed amorphous metallic articles and their fabrication 失效
    模制非晶金属制品及其制造

    公开(公告)号:US5896642A

    公开(公告)日:1999-04-27

    申请号:US683319

    申请日:1996-07-17

    IPC分类号: B21J5/00 B21K17/00 C22C45/10

    摘要: A metallic article is fabricated by providing a die and a piece of a bulk-solidifying amorphous metallic alloy having a glass transition temperature. The bulk-solidifying amorphous metallic alloy is heated to a forming temperature of from about 0.75 T.sub.g to about 1.2 T.sub.g and forced into the die cavity at the forming temperature under an external pressure of from about 260 to about 40,000 pounds per square inch, thereby deforming the piece of the bulk-solidifying amorphous metallic alloy to a formed shape that fills the die cavity. Preferably, a pressure is applied to the piece of the bulk-solidifying amorphous metallic alloy as it is heated, and the heating rate is at least about 0.1.degree. C. per second. The die may be a male die or a female die. When the die has a re-entrant comer therein, the formed shape of the bulk-solidifying amorphous metallic alloy is mechanically locked to the die.

    摘要翻译: 通过提供具有玻璃化转变温度的模具和块状固化非晶态金属合金片来制造金属制品。 将本体固化的非晶金属合金加热到约0.75Tg至约1.2Tm的成型温度,并在约260至约40,000磅/平方英寸的外部压力下在成型温度下被迫进入模腔,从而使 将该块体固化的非晶态金属合金制成一个填充模腔的成形形状。 优选地,在加热时对块状固化非晶态金属合金片施加压力,并且加热速率为至少约0.1℃/秒。 模具可以是男性模具或女性模具。 当模具在其中具有入口角时,本体固化的非晶态金属合金的形状被机械地锁定在模具上。

    Method of casting articles of a bulk-solidifying amorphous alloy
    57.
    发明授权
    Method of casting articles of a bulk-solidifying amorphous alloy 失效
    浇注体固化非晶合金的制品的方法

    公开(公告)号:US5797443A

    公开(公告)日:1998-08-25

    申请号:US720483

    申请日:1996-09-30

    CPC分类号: B22D27/04 B22D46/00

    摘要: A casting charge of a bulk-solidifying amorphous alloy is cast into a mold from a temperature greater than its crystallized melting temperature, and permitted to solidify to form an article. The oxygen content of the casting charge is limited to an operable level, as excessively high oxygen contents produce premature crystallization during the casting operation. During melting, the casting charge is preferably heated to a temperature above a threshold temperature to eliminate heterogeneous crystallization nucleation sites within the casting charge. The casting charge may be cast from above the threshold temperature, or it may be cooled to the casting temperature of more than the crystallized melting point but not more than the threshold temperature, optionally held at this temperature for a period of time, and thereafter cast.

    摘要翻译: 将大块固体非晶态合金的浇铸料从大于其结晶熔融温度的温度浇铸到模具中,并允许固化形成物品。 铸造电荷的氧含量被限制在可操作的水平,因为过高的氧含量在铸造操作期间产生过早的结晶。 在熔化期间,优选将铸造装料加热到高于阈值温度的温度以消除铸造装料内的非均匀结晶成核位置。 铸造装料可以从高于阈值温度铸造,或者可以将其冷却至超过结晶熔点但不超过阈值温度的浇铸温度,任选地在该温度下保持一段时间,然后浇铸 。

    Joining of metals using a bulk amorphous intermediate layer
    58.
    发明授权
    Joining of metals using a bulk amorphous intermediate layer 失效
    使用大块非晶中间层连接金属

    公开(公告)号:US5482580A

    公开(公告)日:1996-01-09

    申请号:US258766

    申请日:1994-06-13

    摘要: Two pieces of metal are joined together using an amorphous metallic joining element. In the joining operation, the joining element is placed between the two pieces to be joined. The joining element and adjacent regions of the pieces being joined are given a joining processing sequence of heating to a joining temperature, forcing the two pieces together for a period of time, and cooling. The joining element has a composition that is amorphous after the processing is complete. The joining element composition is also selected such that, after interdiffusion of elements from the pieces being joined into the joining element during processing, the resulting composition is amorphous after cooling.

    摘要翻译: 使用非晶金属接合元件将两块金属连接在一起。 在接合操作中,接合元件被放置在待接合的两个部件之间。 接合件的接合元件和相邻区域被给予加热到接合温度的连接处理顺序,迫使两个部件在一段时间内并冷却。 接合元件在处理完成后具有无定形的组成。 还选择接合元素组合物,使得在加工过程中,当从加工件中连接到连接元件中的元件相互扩散后,所得组合物在冷却后是无定形的。

    Portable pest electrocution device
    59.
    发明授权
    Portable pest electrocution device 失效
    便携式害虫触电装置

    公开(公告)号:US5269091A

    公开(公告)日:1993-12-14

    申请号:US875754

    申请日:1992-04-29

    IPC分类号: A01M23/38 A01M23/02

    CPC分类号: A01M23/38

    摘要: A pest electrocution device includes a mechanical portion and an electronic portion. The mechanical portion includes a base member with sidewalls defining a basin, a flexible sheet member secured on the base member, and a conductive plate member which is attached on the top face of the flexible sheet member and has at least part of it not overlapping the shoulder of the sidewalls. A pair of opposing metal contacts are respectively fastened on the bottom face of the flexible sheet member and on the base member. The metal contacts are coupled to the trigger input of the electronic circuit portion while the conductive plate member is coupled to the high voltage output of the electronic circuit portion. The electronic circuit portion includes a timer for producing a timing and control signal and a high voltage generator for generating a high voltage current. The electronic circuit portion further includes a latch circuit which records the status of the device for the user to check the status at any time. The electronic circuit portion also includes a pulse generation circuit for generating a high voltage, low current pulse train.

    摘要翻译: 害虫触电装置包括机械部分和电子部分。 机械部分包括具有限定盆的侧壁的基部构件,固定在基底构件上的柔性片构件,以及安装在柔性片构件的顶面上的导电板构件,并且其至少一部分不与其重叠 侧壁的肩膀 一对相对的金属触点分别固定在柔性片状部件的底面上和基部部件上。 金属触点耦合到电子电路部分的触发输入,同时导电板构件耦合到电子电路部分的高压输出端。 电子电路部分包括用于产生定时和控制信号的定时器和用于产生高电压电流的高压发生器。 电子电路部分还包括一个锁存电路,用于记录用户的状态以便随时检查状态。 电子电路部分还包括用于产生高电压,低电流脉冲串的脉冲发生电路。

    Temperature-controlled cardiac pacemaker responsive to body motion
    60.
    发明授权
    Temperature-controlled cardiac pacemaker responsive to body motion 失效
    温度控制的心脏起搏器响应身体运动

    公开(公告)号:US4905697A

    公开(公告)日:1990-03-06

    申请号:US310852

    申请日:1989-02-14

    IPC分类号: A61N1/365

    CPC分类号: A61N1/36585

    摘要: Method and appartaus are disclosed for stimulating the heart with a pacemaker in response to a nonambient temperature of a body, which is sensed, for example, in the right ventricle of the heart. The pacemaker stimulates the heart at one of at least three different nominal rates which have been selected by the physician for the various activity levels of the patient. When the heart is stimulated at an interim rate for mild or brief exercise conditions, the activity level of the patient is sensed using a motion sensor. A control circuit terminates a predetermined time period selected for the pacemaker to stimulate at the interim rate when the sensed level is less than a predetermined activity level. The stimulation rate of the heart is controlled by the nonambient body temperature sensed in the right ventricle of the heart, but the sensed motion or activity level of the patient is used to terminate the interim time period when the sensed activity level of the patient does not correspond to the level of activity intended for the selected stimulation rate.

    摘要翻译: 公开了方法和惯例,以响应于例如在心脏的右心室感测到的身体的非客体温度,用起搏器刺激心脏。 心脏起搏器以至少三种不同的名义速率刺激心脏,这些速率由医师为患者的各种活动水平选择。 当以温和或短暂的运动条件的临时速率刺激心脏时,使用运动传感器感测患者的活动水平。 当感测到的水平小于预定的活动水平时,控制电路终止为起搏器选择的预定时间段以临时速率刺激。 心脏的刺激速率由在心脏右心室感测到的非外界体温控制,但是当感测到的患者活动水平不是时,患者的感测运动或活动水平被用于终止临时时间段 对应于所选刺激速率的活动水平。