公开(公告)号：WO9521042A2

公开(公告)日：1995-08-10

申请号：PCT/US9501310

申请日：1995-01-31

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DRAGHI PETER J ,  PIETRUSKA NORMAN ,  ARMSTRONG WAYNE F

IPC: F01D5/28 ,  B05D7/14 ,  B23K35/02 ,  B23K35/14 ,  B23K35/30 ,  B23P6/04 ,  C23C30/00 ,  C23G5/00 ,  F02C7/00 ,  B23K35/36

CPC classification number: B23P6/007 ,  B23K35/025 ,  B23K35/3033 ,  B23K35/3046 ,  B23K2201/001 ,  C23G5/00

Abstract: A repair coating for superalloy articles, such as gas turbine engine components, includes a volatile organic carrier or water-based carrier, a fluxing agent, a thickening agent, balance a filler mix. The filler mix consists of at least two distinct particulate components. The mix includes a first particulate component having a composition which approximates that of the article being repaired. The mix also includes a second particulate component having a composition approximating that of the article and a melting point depressant, such as boron. This melting point depressant is substantially in excess of that in the article and sufficient to provide melting of a portion of the mix at a processing temperature below the melting temperature of the article. The above filler mix is blended with the other constituents to form the repair coating which is applied to an article.

Abstract translation: 用于超级合金制品（例如燃气轮机发动机部件）的修补涂层包括挥发性有机载体或水基载体，助熔剂，增稠剂，平衡填料混合物。 填料混合物由至少两种不同的颗粒组分组成。 混合物包括具有近似于待修补物品的组成的第一颗粒组分。 混合物还包括具有接近制品的组成和熔点降低剂如硼的第二颗粒组分。 该熔点抑制剂基本上超过制品中的熔点降低剂，并且足以在低于制品的熔融温度的加工温度下提供一部分混合物的熔融。 将上述填料混合物与其它组分混合以形成施加到制品上的修补涂层。