公开(公告)号：US06264767B1

公开(公告)日：2001-07-24

申请号：US09350314

申请日：1999-07-09

申请人： William R. Frank ,  Jonathan Dorricott ,  Laurie E. Collins ,  Joseph Duane Russo ,  Robert Joseph Boecker ,  Brian H. Wales

发明人： William R. Frank ,  Jonathan Dorricott ,  Laurie E. Collins ,  Joseph Duane Russo ,  Robert Joseph Boecker ,  Brian H. Wales

IPC分类号： C21D802

CPC分类号： C21D8/0226 ,  B21B1/34 ,  B21B1/466 ,  B21B37/74 ,  B21B45/004 ,  B21B45/0218 ,  B21B2015/0014 ,  B21B2015/0071 ,  B21B2261/18 ,  B21B2265/22 ,  C21D8/021 ,  C21D2211/002 ,  C21D2211/008

摘要： A steel rolling mill including a Steckel mill is provided with an in-line upstream quench station located downstream of the caster and upstream of the reheat furnace, a shear located downstream of the Steckel mill, and a temperature reduction station downstream of the shear. The upstream quench station has spray nozzles that quench a surface layer of the steel to transform same from an austentitic to a non-austentitic microstructure. The shear provides a precise transverse vertical face on the leading end of the steel. The temperature reduction station applies cooling fluid to the rolled steel so as to obtain a preferred microstructure that may be either bainite or martensite. If bainite, the temperature reduction station includes laminar-flow cooling apparatus; if martensite, the station also includes an initial rapid quench, in which latter case the station is followed by a tempering furnace.

摘要翻译： 包括Steckel轧机的钢轧机设置有位于脚轮下游并在再热炉上游的在线上游骤冷站，位于Steckel轧机下游的剪切机，以及剪切下游的温度降低站。 上游淬火站具有喷嘴，其淬火钢的表面层以将其从奥氏体转变为非奥氏体微结构。 剪切在钢的前端提供精确的横向垂直面。 降温站将冷却流体施加到轧制钢，以获得可以是贝氏体或马氏体的优选微观结构。 如果贝氏体，降温站包括层流冷却装置; 如果马氏体，车站还包括初始快速淬火，其中后一种情况是车站后面是回火炉。