关于机械产量，二十世纪七十年代后期，控制冷却技术的发展使得钢板轧制中的TMCP技术得到广泛发展。

With regard to mechanical production, the development of cooling technology in the late 1970s made the TMCP technology develop widely in steel plate rolling.

辊系快速整体更换不需吊车，采甩轧辊牵引小车和横移台车结合的换辊方式，导卫横梁安装在轧机轴承座上，更换轧辊时,导卫及横梁随辊系整套从牌坊窗口中拖出，一次换辊时间仅为20min.

You don't need to replace the whole fast roller roller way for mining crane, trolley and swing roller tr***ersing trolley with the guide beam is installed on the bearing seat of rolling mill, roll changing, guide and beam with roll set pulled from the housing window, a roll change time is only 20min.

据说在14世纪欧洲就有轧机，但有记载的是1480年意大利人达·芬奇（Leonardo da Vinci）设计出轧机的草图。1553年法国人布律列尔(Brulier)轧制出金和银板材,用以制造钱币。此后在西班牙、比利时和英国相继出现轧机。

It is said that there are rolling mills in Europe in the fourteenth Century, but it is recorded that in 1480, Leonardo Da Vinci (Italian Italian designer Da Finch) designed the draft for rolling mills. In 1553 the French law Adler cloth (Brulier) rolled gold and silver plate, used in the manufacture of coins. Since then, rolling mills h***e been rolled out in Spain, Belgium and Britain.

轧机***厂家说，热轧机的优点主要可以归纳为三个方面。一点，采用热轧可以明显的减少能耗，降低成本。此外，热轧时可以发挥出较高的金属塑性，而且所产生的变形抗力较小，能够有效的防止金属出现严重的变形问题。

The mill manufacturer explains that the advantages of the hot rolling mill can be summed up in three aspects. First, the use of hot rolling can significantly reduce energy cumption and reduce costs. In addition, hot rolling can give full play to the high metal plasticity, and the deformation resistance is ***all, which can effectively prevent the serious deformation of the metal.