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The Influence of Brazing Clearance on Joint Strength of Nickel Based Amorphous and Crystalline Brazing Filler Metals
Author(s): 
Pages: 69-72
Year: Issue:  1
Journal: JOURNAL OF HEBEI SOFTWARE INSTITUTE

Keyword:  钎料接头强度钎焊间隙;
Abstract: 本文系统研究了Ni82.5Cr7Si4.583Fe3成分的非晶态及晶态钎料在不同的钎焊规范下,真空钎焊1Cr18Ni9Ti不锈钢时,接头强度随钎焊间隙变化的特征及与钎缝组织的对应关系.结果表明,接头强度随钎焊间隙的变化存在平台值现象,平台对应的两个特征钎焊间隙分别称为最小可用钎焊间隙{Wmin)和最大可用钎焊间隙(Wmax);从保证填缝质量及成形来看.Wmin不应小于0.01mm;从避免钎缝中出现脆性化合物相及获得较高接头强度考虑.钎焊间隙选择不应大于Wmax;在两个特征钎焊间隙内.钎焊间隙变化对接头强度影响不大;钎焊温度或钎焊保温时间增加时.最大可用钎焊间隙也增大,而最小可用钎焊间隙基本保持不变.
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