High ductility, high hot tensile strength tungsten wire and method of manufacture
    1.
    发明申请
    High ductility, high hot tensile strength tungsten wire and method of manufacture 审中-公开
    高延展性,高热拉伸强度钨丝及其制造方法

    公开(公告)号:US20050155680A1

    公开(公告)日:2005-07-21

    申请号:US10759645

    申请日:2004-01-16

    摘要: A method for manufacturing a high ductility and high hot tensile strength tungsten wire for incandescent lamp filaments is disclosed. The method comprises the steps of preparing a tungsten alloy, swaging a tungsten rod from the alloy, and drawing the swaged rod to wire size in multiple drawing passes. In the method, the wire is annealed between predetermined draws. It is proposed that an annealing is performed before the final drawing pass, by annealing the wire at a temperature between 1100-1300° C. There is also provided a tungsten wire for incandescent lamp filament, which has high ductility and high hot tensile strength. The tungsten wire of the invention has a cold tensile strength—hot tensile strength ratio not exceeding 3.5.

    摘要翻译: 公开了一种用于制造用于白炽灯灯丝的高延展性和高热拉伸强度钨丝的方法。 该方法包括以下步骤:制备钨合金,从合金中锻造钨棒,并将模锻棒拉成多个拉丝道中的线尺寸。 在该方法中,线在预定的拉伸之间退火。 提出在最终拉延之前进行退火,通过在1100-1300℃之间的温度退火,还提供了具有高延展性和高热拉伸强度的白炽灯丝的钨丝。 本发明的钨丝的冷拉伸强度 - 热拉伸强度比不超过3.5。

    HIGH DUCTILITY, HIGH HOT TENSILE STRENGTH TUNGSTEN WIRE AND METHOD OF MANUFACTURE
    2.
    发明申请
    HIGH DUCTILITY, HIGH HOT TENSILE STRENGTH TUNGSTEN WIRE AND METHOD OF MANUFACTURE 审中-公开
    高强度,高热拉伸强度钨丝和制造方法

    公开(公告)号:US20080135139A1

    公开(公告)日:2008-06-12

    申请号:US11839813

    申请日:2007-08-16

    IPC分类号: C22C27/04 C22F1/00

    摘要: A method for manufacturing a high ductility and high hot tensile strength tungsten wire for incandescent lamp filaments is disclosed. The method comprises the steps of preparing a tungsten alloy, swaging a tungsten rod from the alloy, and drawing the swaged rod to wire size in multiple drawing passes. In the method, the wire is annealed between predetermined draws. It is proposed that an annealing is performed before the final drawing pass, by annealing the wire at a temperature between 1100-1300° C.There is also provided a tungsten wire for incandescent lamp filament, which has high ductility and high hot tensile strength. The tungsten wire of the invention has a cold tensile strength-hot tensile strength ratio not exceeding 3.5.

    摘要翻译: 公开了一种用于制造用于白炽灯灯丝的高延展性和高热拉伸强度钨丝的方法。 该方法包括以下步骤:制备钨合金,从合金中锻造钨棒,并将模锻棒拉成多个拉丝道中的线尺寸。 在该方法中,线在预定的拉伸之间退火。 提出在最终拉延过程之前进行退火,通过在1100-1300℃的温度下退火线。还提供了具有高延展性和高热拉伸强度的白炽灯丝的钨丝。 本发明的钨丝的冷拉伸强度 - 热拉伸强度比不超过3.5。