本文介绍在该公司引进的加氢裂化装置反应区内，连接设备用的奥氏体不锈钢有缝管的情况。
Austenitic stainless steel seam tubes used to connect the equipments within the reaction zone of a hydrocracking plant imported by the Incorporation are introduced in the paper.
HIMOD系列旗舰型采用了交互“V型”盘管，采用了带内螺纹的铜管及冲缝型翅片，比采用传统式盘管的机组有更高的传热效率。
HIMOD flagship series USES interactive "type v" coil, the internal thread copper tube and punched slotted fin, and heat transfer efficiency is higher than the traditional coil unit.
根据FWEC管式空气预热器技术规范对管子—管板胀接的要求，对有缝电阻焊管胀接进行工艺试验。
In this paper, to meet the expending requirements of technical specification for FWEC Tubular Air Heaters, the expending procedure test for the ERW tube was performed.
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