The flywheel of the rolling mill is subjected to impact load during rolling. The rolling mill drives the rolling mill through the flywheel and reducer. A part of the load is released by the flywheel. The main drive of the rolling mill requires high dynamic response and high overload capacity. Flywheels are widely used in cutting machines, stamping machinery, etc. The spokes of the flywheel adopt a ring-shaped planar plate structure whose thickness is close to that of the flywheel. The flywheel of the rolling mill works in the best condition, which can reduce the heat of the motor and save power.
当滚动磨机承受负载时，滚动厂的飞轮会减慢并释放能量以帮助电动机克服峰值负载。辐条和轮毂之间的厚度变化梯度很小，因此消除了应力浓度和裂纹在关节时很容易引起的结构缺陷。增加飞轮的厚度，并在变化条件下降低飞轮的直径也有助于均匀的应力分布并增加承重能力。当间隙中没有负载时，飞轮会加速并存储能量，因此电动机负载可以均匀。当拆卸滚动厂的飞轮和皮带轮时，在拧紧螺母等时，严格禁止使用锤子或硬化的钢零件击中，并且在安装过程中还应测试飞轮的静态平衡。
The new high-output rolling mill equipment is equipped with online multiple straightening machines and cold cut-to-length flying shears behind the cooling bed. The rolled pieces are straightened by multiple lengths of the entire length of the cooling bed, followed by shearing blades. A flying shear with a pass cuts the rolled piece into commercial cut-to-length lengths. The rack-type step-by-step cooling bed is used to cool the rolling material evenly, and the simple cross-section steel such as round steel, rebar and other simple cross-section steels have good flatness after cooling, and can be delivered without straightening. For channel steel, angle steel, I-beam and other profiled materials, they need to be straightened after being cooled by a cooling bed. The double ruler is redundant and straightened, the number of head bites is greatly reduced, there are fewer accidents, and the efficiency is high. Using this technology and equipment, the production is mechanized and the degree of automation is high, which greatly reduces the finishing area and operators.
After the molten steel produced by the converter is refined in the refining furnace, the molten steel needs to be cast into billets of different types and specifications. The continuous casting section is the production process of continuously casting the refined molten steel into steel billets. The main equipment includes a turntable, a tundish, a mold, and a tension leveler.
The non-sinusoidal vibration technology of the mold has significant effects in improving the drawing speed, improving the surface quality of the casting slab, and reducing the leakage rate. This technology can not only increase the drawing speed of the continuous caster, increase the productivity, reduce the leakage of the continuous caster, and stabilize the production of the continuous caster, but also can provide high-quality cast slabs for rolling and improve the quality of the rolled material. To
The ladle containing refined molten steel is transported to the turntable. After the turntable rotates to the pouring position, the molten steel is injected into the tundish, and the tundish distributes the molten steel to each mold through the nozzle. The mold is one of the core equipment of the continuous casting machine, which makes the casting shape and rapidly solidify and crystallize. The tension leveler and the crystal vibration device work together to pull out the castings in the crystallizer, and cut them into slabs of a certain length after cooling and electromagnetic stirring.
至
Continuous casting automation control mainly includes continuous casting machine drawing roll speed control, mold vibration
Control technologies such as dynamic frequency control and fixed-length cutting control. Continuous casting and rolling requires the continuous casting machine to be able to produce high-temperature billets, and the cast billets have high surface quality and internal quality. At the same time, the continuous casting machine is required to have stable and high productivity and high drawing speed to meet the needs of high-speed rolling. Mold non-sinusoidal vibration technology is the key technology of continuous casting and rolling.
发布时间：7月3日 - 2021年