Rough Rolling Slab Tracking Control Method

Abstract

The invention relates to a metallurgical process control technique and provides a roughly-rolled plate blank tracking control method. By the adoption of the roughly-rolled plate blank tracking control method, the problem that in an existing steel rolling process, a plate blank rough rolling process needs to be tracked is solved. The roughly-rolled plate blank tracking control method comprises the following steps that firstly, a rough-rolling area is divided into six tracking areas, wherein the six tracking areas sequentially include the heating furnace area, the approaching area, the first rough-rolling area body, the intermediate area, the second rough-rolling area body and the outlet area; and secondly, after a plate blank comes out of a heating furnace, a heating process machine sends the number of a plate blank steel coil discharged out of the furnace to a rough rolling process machine, the rough rolling process machine places the number of steel coil on the heating furnace area, then tracking is started, one-time tracked rolling control over the six tracking areas is completed through a system according to the fact that whether an actual signal of a field is obtained or not through detection, and the plate blank is transferred to a finish-rolling position after the rough rolling process is completed. The roughly-rolled plate blank tracking control method is suitable for tracking control over the roughly-rolled plate blank in a hot continuous rolling process.

Description

technical field

[0001] The invention relates to metallurgical process control technology, in particular to a rough rolling slab tracking control technology. Background technique

[0002] Continuous hot rolling is a method of producing steel. Continuous casting slabs or blooming slabs are used as raw materials. After being heated in a walking heating furnace and descaled by high-pressure water, they enter the rough rolling mill. The rough rolled material is cut head and tail. After that, it enters the finishing mill. The processes of heating, rough rolling and finish rolling are all controlled by computer. After the final rolling, it is cooled by laminar flow and coiled by a coiler to become a straight hair coil or a raw material for cold rolling.

[0003] After the slab leaves the heating furnace, the tracking of the slab will be handed over to the rough rolling process control computer. Where is the slab at, when will the setting procedure be issued, when will the inter-pa...