The purpose of steel rolling is to obtain the desired shape of the steel on the one hand, and to improve the intrinsic quality and mechanical properties of the steel on the other hand.
Different rolled products have different rolling mill process. The combination and sequence of a series of processes required to roll an ingot or billet into steel of a certain shape, size and properties is required. The formulation of the production process of the rolling equipment is one of the important contents of the design of the rolling workshop.
In steel rolling production, the final rolling effect is closely related to many factors. This includes both the heating time and the shape of the plate. Before rolling, how can we quickly determine the heating time of the rolling mill?
The heating time of the hot rolling mill refers to the total time necessary to heat the billet to the temperature required by the process.
The heating time of the rolling mill is usually affected by a series of factors such as the steel type, the shape and size of the billet and its configuration in the furnace, the furnace structure and the thermal system. The heating time of the rolling mill can be roughly calculated by a relatively simple empirical method, or it can be calculated theoretically. For better results, usually two methods are used together, and a more reasonable result is selected.
Due to the different working conditions of the pipeline steam-water mixture in the billet heating furnace, they will affect the circulation after the merger.
After practice, not all rolled steel is heated and rolled through rolling mills, but most of them are cooled down. Only after the appropriate temperature can obtain the ideal rolling effect.
Under normal circumstances, poor flatness also has a great influence on the rolling operation of the rolling mill, especially in the finishing stage, the change of rolling speed will affect the change of factors such as tension, temperature and friction coefficient, which will lead to work rolls. There is a certain elastic flattening deformation between it and the support roller.
In order to reduce this effect as much as possible, it is necessary to control the flatness within a reasonable range, and at the same time optimize the performance of the equipment to start rolling in a good state, which can avoid the occurrence of errors and improve the rolling quality of the product. manufacturing quality.
That's what we share today, about the heating time of the rolling mill. Welcome to follow us Luoyang Judian to learn more about steel mill plant.