究其原因，其中很重要的一条便是对于金属带材拉伸弯曲矫直的变形机理还缺乏深入系统的研究。
It is one of the important reasons that the research on the metal strip deformation mechanism of tension leveling is not sufficient and systematical enough yet.
一种端部加厚钢管的矫直方法，涉及冶金工业中金属管材的加工技术领 域。
The invention relates to a method for straightening steel tubes with thickened end parts, and relates to the technical field of metal tube material processing in the metallurgy industry.
矫直机是对金属棒材、管材、线材等进行矫直的设备。
Straightening machine is a metal bar, pipe, wire, and other equipment for straightening.
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