介绍了叠片式蒸发器的研究和开发过程，在成功地进行了材料、钎焊工艺及装备的开发的基础上，产品性能达到先进水平，开发出的ＣＡ６４４０厢式车空调主蒸发器已正式投产。 The research and development of laminated vaporizers are introduced. Based on the successful development of materials, brazing process and equipment, the performance of products has reached the advanced level. The main evaporator of CA6440 vans has been formally developed Put into production.