论文部分内容阅读
剪切是热连轧机节能的一个重要环节。从增加精轧机入口侧的带坯厚度和低温轧制两方面考虑,迫切要求一种在低温下能够剪切特厚轧材的切头飞剪。然而,以往的滚筒式和四连杆式飞剪,由于其结构限制,很难满足今后大型化的要求。因此,日立制造公司自行研制了日立摆式飞剪,其剪断力为2000吨,剪板厚为80毫米。该飞剪采用了一种新机构,这种机构能够最大限度地利用摆动式的优点,可把剪切和速度同步的两种机能分开,因此,具有适于剪切特厚板的剪切能力大的飞剪的性能。本文将论及这种飞剪的工作原理、机能及其结构等问题。
Shearing is an important part of energy saving in hot tandem rolling mills. In order to increase the thickness of the strip and the low-temperature rolling at the entry side of the finishing mill, there is an urgent need for a shearhead that can shear thick rolled material at a low temperature. However, the previous roller and four-link flying shear, due to its structural constraints, is difficult to meet the requirements of future large-scale. Therefore, the Hitachi manufacturing company developed its own Hitachi pendulum flying shear, the shear force of 2,000 tons, shear plate thickness of 80 mm. The flying shear uses a new mechanism that maximizes the advantages of swinging and separates the two functions of shear and velocity synchronization so that it has shear capabilities suitable for shearing thick slabs Large flying shear performance. This article will discuss the working principle, function and structure of this flying shear.