![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[主观题]
>某矩形断面轧件,轧制前的尺寸为H×B×L=90×90×150mm3,轧后的横断面尺寸为h×b=70×97mm2,求该道次的压下率。解:ε=Δh/H×100%=(90-70)/90×100%=22.22%
>某矩形断面轧件,轧制前的尺寸为H×B×L=90×90×150mm3,轧后的横断面尺寸为h×b=70×97mm2,求该道次的压下率。解:ε=Δh/H×100%=(90-70)/90×100%=22.22%
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
该道次的压下率为22.22%。
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
该道次的压下率为22.22%。