大直径焊管生产用扩径机简介

摘要

The co -authors describe the main functions and types of large -size weld pipe expanding mills, discuss the advantages and disadvantages of the mechanically- operated and hydraulically operated expanders, and express the opinion that the hydraulically - operated expander will be gradually replaced by the mechanically - operated one.%介绍了大直径焊管生产用扩径机的主要作用和主要类型，着重分析了机械式扩径机和液压式扩径机所存在的优缺点，阐明了机械式扩径机将逐步取代液压式扩径机这一观点。