一、20万吨棒材轧机及轧机齿轮箱。该产品是钢铁厂轧机生产线的关键设备。其特点是体积小,重量轻,承载能力大,剪切迅速。齿轮采用国产优质合金钢,采用高速重载齿轮“六、五”基础技术攻关的先进技术,渗碳淬火、齿根圆滑过渡等。齿轮精度达到6级—GB10095—88,最高达4级。轧机均采用液压缸夹紧,提升和移动,轧机机架采用连续角焊接技术,焊后去应力退火处理,保证承载能力。产品主要技术指标:轧机齿轮箱速比最大为 4.7;最大输出轧制扭矩为 60000N·m。水平轧机最大轧制力矩为12kN·m,立式轧机 First, 200,000 tons of bar mills and rolling mill gear box. This product is the key equipment of the mill’s rolling mill production line. Its characteristics are small size, light weight, carrying capacity, rapid shear. Gear made of high quality alloy steel, high-speed heavy-duty gear “six or five” basic technology research advanced technology, carburizing and quenching, root smooth transition. Gear accuracy of 6 - GB10095-88, up to 4 levels. Rolling machines are used hydraulic cylinder clamping, lifting and moving, rolling mill frame using continuous welding technology, after the stress relief annealing after welding, to ensure load-bearing capacity. The main technical specifications of the product: the maximum speed ratio of rolling mill gearbox is 4.7; the maximum output rolling torque is 60000N · m. Horizontal rolling mill maximum rolling torque of 12kN · m, vertical mill