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一、概述 Ni—Cr—B—Si系钎料高温综合性能优良,广泛用于连接航空发动机的不锈钢、高温合金及Fe.Ni,Co基铸造合金零件。由于这种钎料中Si、B易与Ni,Cr,Fe金属元素形成稳定的硬脆性化合物(如:Ni_3B_4,Cr_2B,Fe_3Si等),难以成形,长期以来,一直以粉状用粘结剂调成膏状使用。为了在平面接头中使用这种钎料,传统方法是在粉未中加入适量粘结剂,轧制成一定厚度的粘带钎料,厚度一般为0.1mm,要求更薄即感困难。0.1mm厚的粘带难以满足此类钎料
First, an overview of Ni-Cr-B-Si-based high-temperature solder alloy excellent performance, widely used in connecting aeroengine stainless steel, high temperature alloys and Fe.Ni, Co-based casting alloy parts. Because of this solder, Si, B easily with Ni, Cr, Fe metal elements form stable hard and brittle compounds (such as: Ni_3B_4, Cr_2B, Fe_3Si, etc.), difficult to shape, for a long time, has been used in powder binder Use as a paste. In order to use this kind of brazing filler metal in the flat joint, the traditional method is to add an appropriate amount of binder in the powder, rolled into a certain thickness of the brazing filler metal, the thickness is generally 0.1mm, the thinner the sense of difficulty. 0.1mm thick adhesive tape difficult to meet such solder