One way is to use a hollow billet and then use a fixed or floating mandrel.
一种方法是使用空心坯，然后使用固定或浮动芯棒。
Advantages of employment of semi-floating mandrel mill to produce small and medium tubes are elaborated.
提出了小型无缝钢管生产机组选用半浮动芯棒连轧工艺的优势。
Hardware and software configuration of drive system with position controller, DC drive unit and PLC for a retainer of semi-floating mandrel mill are analysed.
分析了由位置控制器、直流传动装置和PLC组成的半浮芯棒连轧机组限动链控制系统的硬件配置及软件组成。
Hardware and software configuration of drive system with position controller, DC drive unit and PLC for a retainer of semi-floating mandrel mill are analysed.
分析了由位置控制器、直流传动装置和PLC组成的半浮芯棒连轧机组限动链控制系统的硬件配置及软件组成。
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