会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明公开
    • Self cleaning braze material
    • SelbstreinigenderHartlötwerkstoff
    • EP1184129A2
    • 2002-03-06
    • EP01402211.5
    • 2001-08-22
    • UNITED TECHNOLOGIES CORPORATION
    • Abriles, Beth KwiatkowskiRutz, David A.Manis, Bryan W.
    • B23K35/14B23K35/30B23K35/363B23P6/04
    • B23P6/002B23K35/0233B23K35/025B23K35/3013B23K35/3033B23K35/3046B23K35/3605
    • The present invention relates to a self cleaning braze paste which is used in the repair of gas turbine engines. The braze paste comprises lithium fluoride in an amount sufficient to act as a flux which allows the braze material to flow into a crack or void in a part to be repaired up to an amount where there is no residual lithium or fluoride in the crack or void, preferably up to about 20% by volume, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy and a cobalt braze alloy. In a preferred embodiment, the lithium fluoride is present in an amount from about 10% to about 15% by volume. The braze material of the present invention may be applied in a paste form or, alternatively, in a paint or tape form. A method for cleaning and repairing a braze joint is also disclosed. The method broadly comprises the steps of forming a braze material containing lithium fluoride in the above mentioned range, a gel binder in an amount up to about 15% by volume, and the balance comprising at least one of a nickel braze alloy or a cobalt braze alloy, applying the braze material to the braze joint, and heating the braze material to a temperature in the range of from about a temperature sufficient to cause the lithium fluoride to volatize up to about 2300°F for a time period from about 1.0 minute to about 30.0 minutes.
    • 本发明涉及一种用于燃气轮机发动机修理的自清洁钎焊膏。 钎焊膏包括氟化锂,其量足以充当焊剂,其允许钎焊材料流入要修复的部分中的裂纹或空隙,直到裂纹或空隙中没有残留的锂或氟化物的量 ,优选至多约20体积%的凝胶粘合剂,其量至多约15体积%,余量包括镍钎焊合金和钴钎焊合金中的至少一种。 在优选的实施方案中,氟化锂以约10体积%至约15体积%的量存在。 本发明的钎焊材料可以以糊状形式施用,或者以涂料或带状形式施用。 还公开了一种用于清洁和修复钎焊接头的方法。 该方法广泛地包括以下步骤:在上述范围内形成含氟化锂的钎焊材料,凝胶粘合剂的量至多约15体积%,余量包括镍钎焊合金或钴钎焊中的至少一种 合金,将钎焊材料施加到钎焊接头,并且将钎焊材料加热至约足以使氟化锂挥发至约2300°F约1.0分钟至约1.0分钟至 约30.0分钟。