A method of controlling slab heating
A slab heating and slab technology, applied in the field of controlling slab heating, can solve problems such as uneven heating of slabs
Active Publication Date: 2016-12-07
首钢股份公司迁安钢铁公司 +1
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- Application Information
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Problems solved by technology
[0007] The invention provides a method for controlling the heating of the slab to solve the technical problem of uneven heating of the slab
Method used
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Embodiment 1
[0022] In the embodiment of the present application, a method of controlling the heating of the slab is described, see figure 1 , is the specific implementation process of this method:
[0023] S1, put the slab into the heating furnace, heat it to 1200°C, and then roll it out of the furnace. Make it meet the following requirements after rolling: thickness: 200±5mm; width: 1100±50mm. After the slab is rolled, it is returned to the slab warehouse and then the steps in S2 are performed.
[0024] S2, after rolling, put the slab into the holding furnace and slowly cool it to 300° C., then lift it out from the holding furnace and put it into the atmosphere to cool down to room temperature again. Specifically, the room temperature specifically refers to: 18°C to 42°C.
[0025] S3, after cooling, the length of the slab is cut to length using a cutting gun. Specifically, the size of the fixed length is 10000mm-11000mm.
[0026] S4, making holes on the slab.
[0027] S5, selecti...
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Abstract
The invention discloses a method for controlling heating of a plate blank. The method comprises the steps: putting the plate blank into a heating furnace, heating the plate blank to 1200 DEG C, discharging the plate blank out of the furnace and rolling the plate blank; putting the rolled plate blank into a heat preservation furnace, slowly cooling the plate blank to 300 DEG C, then lifting the plate blank out of the heat preservation furnace, putting the plate blank in the atmosphere and cooling the plate blank to the room temperature again; sizing the length of the cooled plate blank by a cutting gun; forming open holes in the plate blank; selecting corresponding thermocouples according to the open holes of the plate blank and putting the thermocouples into the corresponding open holes, wherein the thermocouples are used for measuring the temperature of the corresponding areas of the plate blank; lifting the plate blank into a furnace hearth, gradually increasing the temperature of the plate blank to 1100 DEG C, then collecting the temperature of the corresponding areas in each preset temperature range by the thermocouples in the process of continuing to increase the temperature of the plate blank; and analyzing the temperature collected in the corresponding areas by the thermocouples in each preset temperature range and adjusting coil configuration parameters of the corresponding areas according to the collected temperature, thereby enabling all the areas of the plate blank to be consistent in each preset temperature range.
Description
technical field [0001] The present application relates to the technical field of steel rolling, in particular to a method for controlling heating of a slab. Background technique [0002] To produce high-quality grain-oriented silicon steel products, there must be a mature and stable process system and temperature system. In the hot rolling heating process system, there are currently the following two process routes: [0003] (1) Silicon steel slabs are put into the heat preservation pit for slow cooling, and then put into the heating furnace for heating when the temperature of the slab is higher than 250°C. into the rolling mill for rolling. [0004] (2) Silicon steel slabs are first heated to about 1250°C in a walking heating furnace, rolled by a rough rolling mill for two passes, and then placed in an electromagnetic induction heating furnace at 1100°C and heated to 1380±10°C before being released from the furnace , into the rolling mill for rolling. [0005] The proce...
Claims
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IPC IPC(8): B21B37/74
CPCB21B37/74
Inventor 曹恒刘志民武振威安冬洋周广成谢天伟李彬于洪喜
Owner 首钢股份公司迁安钢铁公司