【摘要】 分别采用紫铜和BNi-5钎料进行EGR不锈钢冷却器真空钎焊试验。分析了真空钎焊工艺参数,拟定了真空钎焊工艺过程。通过对焊缝的质量检查、性能测试和金相组织分析,验证了钎焊工艺参数的合理性。更多还原

【Abstract】 Vacuum brazing tests were carried out on stainless steel EGR cooler with pure copper brazing paste and BNi-5 brazing paste,respectively.Vacuum brazing processes were determined by analyzing the vacuum brazing parameters.The results of brazed seam quality inspection,function test and microstructure analysis show that the brazing parameters are reasonable.更多还原