SOLDERING FLUX
    3.
    发明授权
    SOLDERING FLUX 有权
    软助焊剂

    公开(公告)号:EP1200226B1

    公开(公告)日:2003-07-23

    申请号:EP00940570.5

    申请日:2000-06-19

    申请人: Alpha Fry Limited

    IPC分类号: B23K35/363

    摘要: A soldering flux composition which comprises: (i) zinc bromide and/or one or more amine hydrohalides and/or one more amine hydrophosphates in an amount of from 30 to 99.5 wt% based on the total weight of components (i) and (ii); and (ii) one or more fluorine-containing compounds selected from fluoroboric acid, ammonium fluoroborate, lithium fluoroborate, sodium fluoroborate and potassium fluoroborate in an amount of from 70 to 0.5 wt% based on the total weight of components (i) and (ii); and (iii) water in an amount not less than that required to solvate components (i) and (ii). The composition of the present invention is particularly useful as a soldering flux for lead-free solder alloys.

    Method of diffusion bonding superalloy components
    4.
    发明公开
    Method of diffusion bonding superalloy components 有权
    维尔法恩um扩散器von Bauteilen aus Superlegierung

    公开(公告)号:EP1216784A2

    公开(公告)日:2002-06-26

    申请号:EP01310603.4

    申请日:2001-12-19

    IPC分类号: B23K35/00 B23K20/16

    摘要: A method of joining superalloy substrates together comprising diffusion bonding the superalloy substrates by depositing an activator directly on the surface of the joint to be bonded and thereafter subjecting the joint to heat pressure. The heat and pressure causes the surface of the superalloy, in the presence of the activator, to diffusion bond without the use of a brazing alloy. By eliminating the brazing alloy, a high strength, high temperature bond is achieved, yet there is no molten brazing alloy to be drawn through capillary action into any fine features surrounding the joint being bonded, and there is no residue left at the interface that would diminish the mechanical properties of the joint.

    摘要翻译: 一种将超合金基板接合在一起的方法,包括通过在待接合的接头的表面上直接沉积激活剂,然后对接头进行加热来扩散接合超合金基板。 在不使用钎焊合金的情况下,加热和加压导致超级合金的表面在活化剂的存在下扩散接合。 通过消除钎焊合金,实现了高强度,高温接合,但是没有熔融钎焊合金通过毛细作用被拉伸到围绕接合接头的任何细小特征中,并且在界面处没有留下残留物 降低接头的机械性能。

    ROSIN-FREE, LOW VOC, NO-CLEAN SOLDERING FLUX AND METHOD USING THE SAME
    5.
    发明公开
    ROSIN-FREE, LOW VOC, NO-CLEAN SOLDERING FLUX AND METHOD USING THE SAME 失效
    松香免费,低VOC,即使洁面通量及其用途

    公开(公告)号:EP0776262A1

    公开(公告)日:1997-06-04

    申请号:EP95931772.0

    申请日:1995-09-07

    IPC分类号: B23K35 H05K3

    摘要: A rosin-free, low VOC, no-clean soldering flux consists essentially of one or more halide-free carboxylic acid activators in an aggregate amount not exceeding about 8 % by weight of the flux; one or more alkyl amines capable of forming amine salt of the one or more activators and in an aggregate amount not exceeding about 10 % by weight of the flux; and water, with or without a surfactant. The flux is particularly useful in a method of producing soldered printed wiring assemblies with minimal residual ionic contamination, so that post-soldering cleaning of the assemblies is unnecessary.