The failure causes of the finned tubes of an ethylene cracking furnace were analyzed, and some corresponding countermeasures were applied to eliminate the failure possibility.
分析了造成乙烯装置裂解炉翅片管开裂的原因，并在实际生产、维修和设计中采取了相应的对策，消除了再次发生类似问题的可能性。
The ethylene cracking tubes pack-carburized in a laboratory(P tube) and carburized during servicing in a cracking furnace (S tube) are studied.
对实验室固体渗碳（P管）和裂解炉运行渗碳（S管）的乙烯裂解管进行了研究。
The qualified welding procedure has successfully been used for the welding of the P91 steel furnace tubes in three ethylene cracking furnaces.
并依此制定工艺，成功地完成了该钢种在三台乙烯裂解炉中的焊接应用。
The qualified welding procedure has successfully been used for the welding of the P91 steel furnace tubes in three ethylene cracking furnaces.
并依此制定工艺，成功地完成了该钢种在三台乙烯裂解炉中的焊接应用。
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