Zirconia-stabilized multi-filamentary niobium-tin superconducting wire
    5.
    发明授权
    Zirconia-stabilized multi-filamentary niobium-tin superconducting wire 失效
    氧化锆稳定的多丝铌锡超导线

    公开(公告)号:US07325293B2

    公开(公告)日:2008-02-05

    申请号:US11406636

    申请日:2006-04-19

    IPC分类号: H01B12/00 H01B13/00

    摘要: A multi-filament superconducting wire in which the filaments comprise zirconia-stabilized ultra-fine grain Nb3Sn. The superconducting wire is formed by wire-drawing a preform comprising a metallic matrix and at least one niobium alloy rod having zirconium and oxygen in solid solution and heat treating the drawn wire in the presence of tin to yield at least one continuous filament comprising ultra-fine grain Nb3Sn having semi-coherent ZrO2 precipitates disposed therein. The ZrO2 precipitates serve to stabilize the ultra-fine grain microstructure of the Nb3Sn at temperatures up to 1100° C. and allows Nb3Sn to maintain the ultra-fine grain microstructure when heat treated at temperatures that are greater than those previously used. By using higher temperatures to form Nb3Sn, the time required for heat treatment can be significantly reduced.

    摘要翻译: 一种多丝超导线,其中长丝包含氧化锆稳定的超细晶粒Nb 3 Sn。 超导线材通过拉丝预成型体而形成,该预成型体包括金属基体和至少一个在固溶体中具有锆和氧的铌合金棒,并在锡的存在下热处理拉丝,得到至少一根连续的长丝, 具有设置在其中的半结晶的ZrO 2·析出物的细晶Nb 3 Sn。 ZrO 2 2析出物用于在高达1100℃的温度下稳定Nb 3 Sn的超细晶粒微观结构,并允许Nb 3 N / > Sn以在以前使用的温度下进行热处理时保持超细晶粒微观结构。 通过使用较高的温度来形成Nb 3 Sn,可以显着地降低热处理所需的时间。

    Zirconia-stabilized multi-filamentary niobium-tin superconducting wire
    6.
    发明授权
    Zirconia-stabilized multi-filamentary niobium-tin superconducting wire 失效
    氧化锆稳定的多丝铌锡超导线

    公开(公告)号:US06583362B2

    公开(公告)日:2003-06-24

    申请号:US09682972

    申请日:2001-11-05

    IPC分类号: H01B1200

    CPC分类号: H01L39/2409 H01L39/14

    摘要: A multi-filament superconducting wire in which the filaments comprise zirconia-stabilized ultra-fine grain Nb3Sn. The superconducting wire is formed by wire-drawing a preform comprising a metallic matrix and at least one niobium alloy rod having zirconium and oxygen in solid solution and heat treating the drawn wire in the presence of tin to yield at least one continuous filament comprising ultra-fine grain Nb3Sn having semi-coherent ZrO2 precipitates disposed therein. The ZrO2 precipitates serve to stabilize the ultra-fine grain microstructure of the Nb3Sn at temperatures up to 1100° C. and allows Nb3Sn to maintain the ultra-fine grain microstructure when heat treated at temperatures that are greater than those previously used. By using higher temperatures to form Nb3Sn, the time required for heat treatment can be significantly reduced.

    摘要翻译: 一种多丝超导线,其中长丝包含氧化锆稳定的超细晶粒Nb 3 Sn。 超导线材通过拉丝预成型体而形成,该预成型体包括金属基体和至少一个在固溶体中具有锆和氧的铌合金棒,并在锡的存在下热处理拉丝,得到至少一根连续的长丝, 配置有半连续ZrO 2析出物的细晶粒Nb 3 Sn。 ZrO2沉淀物用于在高达1100℃的温度下稳定Nb3Sn的超细晶粒微观结构,并允许Nb 3 Sn在高于以前使用的温度下进行热处理时保持超细晶粒微观结构。 通过使用较高的温度来形成Nb 3 Sn,可以显着降低热处理所需的时间。

    Method for manufacturing x-ray tubes
    7.
    发明授权
    Method for manufacturing x-ray tubes 失效
    X射线管制造方法

    公开(公告)号:US5733162A

    公开(公告)日:1998-03-31

    申请号:US538144

    申请日:1995-10-02

    IPC分类号: H01J9/40 H01J35/10

    CPC分类号: H01J9/40 H01J35/10

    摘要: Improved methods of exhausting and combined exhausting and seasoning of x-ray tube envelopes for high performance x-ray system having a rotating anode therein which includes providing a glass tubulation having a diameter greater than about 20 mm then operatively connecting the glass tubulation to the x-ray tube envelope, providing a disk inside the glass tubulation, the disk having a smaller diameter than the glass tubulation, providing a vacuum to the glass tubulation; positioning heating means on the outside of the glass tubulation, heating the anode of the x-ray tube to a temperature temperatures inside the x-ray tube envelope of about 1500.degree. C., positioning the disk inside the glass tubulation proximate the position of the heating means on the outside of the glass tubulation, heating the glass tubulation proximate the disk to about 1300.degree. C., checking for sealing contact between the glass tubulation and the disk; and cooling the glass tubulation proximate the disk until the temperature of the heated area is below about 300.degree. C., thereby sealing the tubulation/envelope connection are disclosed.

    摘要翻译: 改进了用于具有旋转阳极的高性能x射线系统的X射线管信封的排气和组合排气和调味的方法,其包括提供直径大于约20mm的玻璃管,然后将玻璃管道可操作地连接到x 提供玻璃管内的盘,盘具有比玻璃管更小的直径,为玻璃管形成真空; 将加热装置定位在玻璃管的外侧,将x射线管的阳极加热到X射线管外壳内的温度约1500℃,将盘定位在靠近玻璃管的位置 加热装置在玻璃管外面,将靠近盘的玻璃管加热至约1300℃,检查玻璃管和盘之间的密封接触; 并冷却盘附近的玻璃管,直到加热区域的温度低于约300℃,从而公开了封闭/封闭连接。

    System and method for manufacturing x-ray tubes having glass envelopes
    8.
    发明授权
    System and method for manufacturing x-ray tubes having glass envelopes 失效
    制造具有玻璃封套的x射线管的系统和方法

    公开(公告)号:US5722870A

    公开(公告)日:1998-03-03

    申请号:US576971

    申请日:1995-12-22

    CPC分类号: H01J9/385 B23K20/14 H01J35/16

    摘要: Improved systems and methods are disclosed for exhausting and combined exhausting and seasoning of x-ray tubes having glass envelopes for high performance x-ray system having a rotating anode therein. The systems and methods include using a metal tubulation having a diameter greater than about 20 mm operatively connected to a glass tubulation having a diameter greater than about 20 mm which is in turn connected to a glass x-ray tube envelope; positioning a metal disk inside the metal tubulation, the metal disk having a smaller diameter than at least one portion of the metal tubulation, and connecting a vacuum pump to the metal portion of the tubulation; positioning heating means on the outside of the metal portion of the tubulation, heating the anode of the x-ray tube to a temperature inside the x-ray tube envelope to about 1500.degree. C., positioning the metal disk inside the metal portion of the tubulation proximate the position of the heating means on the outside of the metal portion of the tubulation, heating the metal portion of the tubulation proximate the metal disk to about 500.degree. C. or a temperature sufficient to reflow the braze alloy, checking for bonding between the metal portion of the tubulation and the metal disk; and cooling the metal portion of the tubulation proximate the metal disk, thereby sealing the metal portion of the tubulation to the glass envelope/glass tubulation connection.

    摘要翻译: 公开了改进的系统和方法用于对具有其中具有旋转阳极的高性能x射线系统的具有玻璃封套的x射线管的排气和组合排气和调味。 该系统和方法包括使用直径大于约20mm的金属管道,其可操作地连接到具有大于约20mm的直径的玻璃管,该玻璃管又连接到玻璃X射线管外壳; 将金属盘定位在金属管内,金属盘的直径小于金属管的至少一部分,并将真空泵连接到管状金属部分; 将定位加热装置放置在管状金属部分的外侧,将X射线管的阳极加热至X射线管外壳内的温度至约1500℃,将金属盘定位在金属部分的金属部分内 在管状金属部分的外侧靠近加热装置的位置的管道,将接近金属盘的管道的金属部分加热至约500℃或足以回流钎焊合金的温度,检查 管状金属部分和金属盘; 并且在金属盘附近冷却管状金属部分,由此将管状物的金属部分密封到玻璃管/玻璃管连接。

    System and method for manufacturing x-ray tubes having metal envelopes
utilizing a metal disk
    9.
    发明授权
    System and method for manufacturing x-ray tubes having metal envelopes utilizing a metal disk 失效
    用于制造利用金属盘的具有金属封套的x射线管的系统和方法

    公开(公告)号:US5722869A

    公开(公告)日:1998-03-03

    申请号:US577162

    申请日:1995-12-22

    摘要: Improved systems and methods are disclosed for exhausting and combined exhausting and seasoning of x-ray tubes having metal envelopes for high performance x-ray systems having a rotating anode therein. The methods and systems for sealing a metal tubulation, having a diameter greater than about 20 mm and operatively connected to the x-ray tube metal envelope, to a metal disk positioned inside the metal tubulation, the metal disk having a smaller diameter than at least one portion of the metal tubulation include providing a vacuum connection to the metal tubulation and a heater positioned on the outside of the metal tubulation; heating the anode of the x-ray tube to temperatures inside the x-ray tube metal envelope of about 1500.degree. C.; positioning the metal disk inside the metal tubulation proximate the position of the heater on the outside of the metal tubulation; heating the metal tubulation proximate the metal disk to a temperature sufficient to bond the metal disk to the metal tubulation; checking for bonding between the metal tubulation and the metal disk; and cooling the metal tubulation proximate the metal disk until the metal tubulation/metal disk connection is bonded.

    摘要翻译: 公开了改进的系统和方法,用于对具有其中具有旋转阳极的高性能x射线系统的具有金属包络的x射线管的排气和组合排气和调味。 用于将具有大于约20mm的直径并且可操作地连接到x射线管金属外壳的金属管道密封到位于金属管内的金属盘的方法和系统,金属盘的直径小于至少 金属管的一部分包括提供与金属管的真空连接和位于金属管的外侧的加热器; 将x射线管的阳极加热到大约1500℃的x射线管金属外壳内的温度。 将金属盘定位在靠近金属管外侧的加热器位置的金属管内; 将靠近金属盘的金属管道加热到足以将金属盘结合到金属管的温度; 检查金属管和金属盘之间的接合; 并且在金属盘附近冷却金属管,直到金属管/金属盘连接被粘合。