铝制板翅式换热器芯体钎焊后各通道应能承压,芯体各处不能泄漏。事实上,泄漏不可避免。分析芯体外漏和内漏的原因,介绍芯体外漏和内漏时相应的修补措施及其局限性。 Aluminum plate fin heat exchanger core after brazing each channel should be pressure, the core can not be leaked everywhere. In fact, the leak is inevitable. Analysis of the reasons for the core leakage and internal leakage, introduce the corresponding repair measures and their limitations when the core leakage and internal leakage.