本文对双管板不锈钢焊管蒸汽加热器主要工序的制造进行介绍。由于这样的蒸汽加热器还是第一次制造,我们通过对试件进行胀接、焊接工艺评定。并将试验结果与理论计算和实际生产联系起来,进行比较,积累经验,为以后类似产品的设计、制造提供参考。 This article describes the manufacture of the main processes of double-tube stainless steel pipe steam heaters. Since such a steam heater is still being manufactured for the first time, we evaluated the welding process by expanding the test piece. And the test results and theoretical calculations and actual production linked to compare and accumulate experience for the design and manufacture of similar products for future reference.