Active brazing solder for brazing alumina-ceramic parts
    1.
    发明授权
    Active brazing solder for brazing alumina-ceramic parts 失效
    用于钎焊氧化铝陶瓷零件的活性钎焊焊料

    公开(公告)号:US06039918A

    公开(公告)日:2000-03-21

    申请号:US896481

    申请日:1997-07-18

    摘要: The active brazing solder for brazing ceramic parts of alumina, particularly of high-purity alumina, contains a maximum of 12 wt. % Ti, a maximum of 8 wt. % Be, and less than 16.5 wt. % Fe, the remainder being Zr and any impurities that may be present. The active brazing solder has the following behaviour/features: Brazing temperature: lower than 1,000.degree. C.; the brazed joint is high-vacuum-tight over a long period of time; the coefficient of thermal expansion of the active brazing alloy is substantially identical to that of the alumina ceramic in the entire temperature range covered during the brazing process; the strength of the brazed joint between the two ceramic parts is so high that under tensile loading, fracture will result not at the joint, but in the adjacent ceramic; the pressure resistance of the active brazing solder is greater than 2 GPa; the active brazing solder is very good processable into powders having particle sizes on the order of 10 .mu.m.

    摘要翻译: 用于钎焊氧化铝陶瓷部件,特别是高纯度氧化铝的活性钎焊焊料最多含有12wt。 %Ti,最多8wt。 %Be,小于16.5wt。 %Fe,其余为Zr和可能存在的任何杂质。 活性钎焊焊料具有以下特点:钎焊温度低于1000℃。 钎焊接头长时间高真空密封; 活性钎焊合金的热膨胀系数在钎焊过程中覆盖的整个温度范围内基本上与氧化铝陶瓷的热膨胀系数相同; 两个陶瓷部件之间的钎焊接头的强度如此之高,以至于在拉伸载荷下,不会在接头处产生断裂,而是在相邻的陶瓷中产生断裂; 活性钎焊焊料的耐压大于2 GPa; 活性钎焊焊料对于粒径在10微米左右的粉末是非常好的可加工性的。

    Method of producing an active brazing paste
    2.
    发明授权
    Method of producing an active brazing paste 失效
    生产活性钎焊膏的方法

    公开(公告)号:US5431744A

    公开(公告)日:1995-07-11

    申请号:US242378

    申请日:1994-05-13

    CPC分类号: B23K35/32 B23K35/025

    摘要: To produce an active brazing paste suitable for brazing leads in insulating parts, e.g., ceramic parts, and containing an active brazing powder and an organic material acting as a vehicle, coarse pieces of the active brazing alloy are prehydrogenated. These pieces are ground in a mill with the addition of hydrogen to form a hydrogenated active brazing powder. The latter is then processed with the liquid vehicle openly, under normal atmospheric and temperature conditions, to form the active brazing paste.

    摘要翻译: 为了生产适用于绝缘部件(例如陶瓷部件)钎焊引线的活性钎焊膏,并且含有活性钎焊粉末和作为载体的有机材料,将粗制的活性钎焊合金预先氢化。 将这些碎片在磨机中用氢气研磨以形成氢化活性钎焊粉末。 然后在正常的大气和温度条件下,将液体载体用液体载体开放,以形成活性钎焊膏。