CN103882219A - Method for heating plate blank in silicon steel hot rolling procedure - Google Patents
Method for heating plate blank in silicon steel hot rolling procedure Download PDFInfo
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- CN103882219A CN103882219A CN201210559495.2A CN201210559495A CN103882219A CN 103882219 A CN103882219 A CN 103882219A CN 201210559495 A CN201210559495 A CN 201210559495A CN 103882219 A CN103882219 A CN 103882219A
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- Prior art keywords
- heating
- water beam
- slab
- silicon steel
- hot rolling
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005098 hot rolling Methods 0.000 title claims abstract description 9
- 229910000976 Electrical steel Inorganic materials 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- UKGJZDSUJSPAJL-YPUOHESYSA-N (e)-n-[(1r)-1-[3,5-difluoro-4-(methanesulfonamido)phenyl]ethyl]-3-[2-propyl-6-(trifluoromethyl)pyridin-3-yl]prop-2-enamide Chemical compound CCCC1=NC(C(F)(F)F)=CC=C1\C=C\C(=O)N[C@H](C)C1=CC(F)=C(NS(C)(=O)=O)C(F)=C1 UKGJZDSUJSPAJL-YPUOHESYSA-N 0.000 description 1
- 239000004484 Briquette Substances 0.000 description 1
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
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- Manufacturing Of Steel Electrode Plates (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a slab heating method in a silicon steel hot rolling procedure. The charging temperature is more than 400 ℃, the heating section temperature is 1000-. The method is suitable for the production of silicon steel sensitive to uneven heating caused by the water beam in the heating furnace, and can eliminate the water beam mark caused by cooling the water beam and the longitudinal periodic performance fluctuation of the finished steel strip caused by the water beam mark; can stop the deformation of the slab in heating the thin slab and the high-temperature oriented silicon steel slab, improve the charging amount and improve the production efficiency.
Description
Technical field
The present invention relates to heating of plate blank method in silicon iron hot rolling operation.
Background technology
During hot rolled strip is produced, blank plates of silicon steels is because its thermal conductivity is low, and the heat-processed in process furnace usually exists heating uneven, causes presenting water beam and prints, and especially, when local Heating temperature is poor while being greater than 100 ℃, this water beam seal is more obvious.In order to address this problem, the Shui Liangshang that is everlasting installs thermal insulation layer additional, stops slab to conduct heat to water beam.Due to steel billet and water beam contact area larger, so can not fundamentally address this problem.
Meanwhile, in order to improve blank plates of silicon steels heating efficiency, need to improve the rate of heating of steel, cause steel billet local heating temperature to approach steel fusing point and cause slab deformation, cause quality product fluctuation; Being out of shape cannot come out of the stove when serious causes and produces line and stop production; Above-mentioned situation has seriously restricted the lifting of quality product.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly reduces existing blank plates of silicon steels and in Furnace Production Process, produce that water beam prints or the hot rolling heating method of slab deformation, thereby eliminates the impact on steel band performance inequality, improves the quality of products.
Slab deformation is because steel billet temperature is high, and in the time of steel billet horizontal positioned, steel billet moment of inertia is little, and under the same terms, moment of inertia little Yi produces distortion.
Technical scheme of the present invention:
A kind of heating of plate blank method in silicon iron hot rolling operation, the edge-on process furnace that enters of steel billet, steel billet is put to be contained in and is with on reeded water beam, realizes the vertical heating of slab.
Charging temperature is greater than 400 ℃, heating zone temperature 1000-1200 ℃, tapping temperature 1000-1200 ℃, heat-up time 100-200min.
Adopt novel method, in the situation that keeping former process furnace length constant, can significantly improve batch, heating efficiency improves 50% left and right.
Beneficial effect of the present invention is applicable to be caused the uneven responsive silicon steel of heating to produce by water beam in process furnace for: the present invention, can eliminate the water beam causing due to cooling water beam and print and consequent finished product steel belt longitudinal periodicity performance inconsistency; Can stop slab deformation adding in hot thin slab and high temperature directional silicon steel slab, improve batch, enhance productivity.
Accompanying drawing explanation
Fig. 1 is former steel billet heating means;
Fig. 2 is heating steel billet method of the present invention;
Fig. 3 is water beam schematic diagram of the present invention;
Wherein, the 1st, process furnace, the 2nd, steel billet, the 3rd, water beam, the 4th, groove.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described:
Fig. 1 is former steel billet heating means, in process furnace 1, and heating on water beam 3 in steel billet 2 horizontal positioned.
Novel method is as Fig. 2 and 3, and by edge-on steel billet 2 process furnace 1 that enters, steel billet 2 is put on the water beam 3 that is contained in fluted 4, realizes the vertical heating of slab.
Embodiment 1
Heating cold rolling non-orientation silicon steel, smelting component
| C | Si | Mn | P | S | N | Als |
| 0.0030 | 0.84 | 0.24 | 0.014 | 0.0031 | 0.0015 | 0.23 |
In the time that rate of heating exceedes 4 ℃/min, in the time that bulk temperature reaches requirement, between water beam, board briquette is higher, and water beam place temperature is lower.Cause a large amount of solid solutions of two-phase between water beam, at a large amount of disperse educts of course of hot rolling subsequently, iron loss raises.And water beam place temperature is lower, iron loss is on the low side, causes iron loss cyclic fluctuation; Adopt after present method heating when rate of heating reaches 5 ℃/min, because steel billet and water beam contact area reduce, water beam affects little on steel billet, so performance is not almost affected.Reduce end properties wave phenomenon.
Table processing parameter
Table embodiment effect comparison
| ? | Slab thickness Mm | The amount of coming out of the stove t/min | Rate of heating, ℃/min | Iron loss fluctuation range, W/kg |
| Comparative example | 230 | 10 | 4 | 0.5 |
| Embodiment 1 | 230 | 15 | 5 | 0.2 |
Produce high grade cold rolling non-oriented silicon steel, smelting component for thin slab
| C | Si | Mn | P | S | N | Als |
| 0.0025 | 2.54 | 0.35 | 0.016 | 0.0033 | 0.0013 | 0.33 |
After smelting, continuous casting becomes 135mm heavy slab, adds walking beam furnace heating.
Table processing parameter
Table embodiment effect comparison
Claims (2)
1. a heating of plate blank method in silicon iron hot rolling operation, is characterized in that: the edge-on process furnace (1) that enters of steel billet (2), it is upper that steel billet (2) is put the water beam (3) being contained in fluted (4), realizes the vertical heating of slab.
2. heating of plate blank method in silicon iron hot rolling operation according to claim 1, is characterized in that: charging temperature is greater than 400 ℃, heating zone temperature 1000-1200 ℃, tapping temperature 1000-1200 ℃, heat-up time 100-200min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559495.2A CN103882219A (en) | 2012-12-21 | 2012-12-21 | Method for heating plate blank in silicon steel hot rolling procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559495.2A CN103882219A (en) | 2012-12-21 | 2012-12-21 | Method for heating plate blank in silicon steel hot rolling procedure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103882219A true CN103882219A (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210559495.2A Pending CN103882219A (en) | 2012-12-21 | 2012-12-21 | Method for heating plate blank in silicon steel hot rolling procedure |
Country Status (1)
| Country | Link |
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| CN (1) | CN103882219A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671257A (en) * | 2016-03-17 | 2016-06-15 | 攀钢集团西昌钢钒有限公司 | Heating method for cold-charging electrical steel |
| CN107090541A (en) * | 2017-04-25 | 2017-08-25 | 周振江 | A kind of steel billet erects heating |
| CN115433822A (en) * | 2022-08-31 | 2022-12-06 | 鞍钢股份有限公司 | Method for controlling deformation of non-oriented silicon steel continuous casting billet in hot rolling heating furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55104423A (en) * | 1979-01-29 | 1980-08-09 | Nippon Steel Corp | Skid mark preventing method in working beam type slab heating furnace |
| JPS572821A (en) * | 1980-06-09 | 1982-01-08 | Godo Seitetsu Kk | Heating furnace for steel material for rolling |
| CN85109365A (en) * | 1985-12-24 | 1987-06-24 | 冶金部马鞍山钢铁设计研究院 | Can be from the mechanization stove of clearancen |
| CN201071385Y (en) * | 2007-07-30 | 2008-06-11 | 济南钢铁股份有限公司 | Insertion type slide track of steel pulling slab heating furnace |
| CN201177454Y (en) * | 2008-01-31 | 2009-01-07 | 崔新华 | Double heat storage blast furnace gas walking beam type heating stove skid |
| CN201753362U (en) * | 2010-06-01 | 2011-03-02 | 郝兴华 | Tunnel type electromagnetic induction billet heating furnace |
-
2012
- 2012-12-21 CN CN201210559495.2A patent/CN103882219A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55104423A (en) * | 1979-01-29 | 1980-08-09 | Nippon Steel Corp | Skid mark preventing method in working beam type slab heating furnace |
| JPS572821A (en) * | 1980-06-09 | 1982-01-08 | Godo Seitetsu Kk | Heating furnace for steel material for rolling |
| CN85109365A (en) * | 1985-12-24 | 1987-06-24 | 冶金部马鞍山钢铁设计研究院 | Can be from the mechanization stove of clearancen |
| CN201071385Y (en) * | 2007-07-30 | 2008-06-11 | 济南钢铁股份有限公司 | Insertion type slide track of steel pulling slab heating furnace |
| CN201177454Y (en) * | 2008-01-31 | 2009-01-07 | 崔新华 | Double heat storage blast furnace gas walking beam type heating stove skid |
| CN201753362U (en) * | 2010-06-01 | 2011-03-02 | 郝兴华 | Tunnel type electromagnetic induction billet heating furnace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671257A (en) * | 2016-03-17 | 2016-06-15 | 攀钢集团西昌钢钒有限公司 | Heating method for cold-charging electrical steel |
| CN105671257B (en) * | 2016-03-17 | 2018-09-18 | 攀钢集团西昌钢钒有限公司 | A kind of heating means of cold charge electrical sheet |
| CN107090541A (en) * | 2017-04-25 | 2017-08-25 | 周振江 | A kind of steel billet erects heating |
| CN115433822A (en) * | 2022-08-31 | 2022-12-06 | 鞍钢股份有限公司 | Method for controlling deformation of non-oriented silicon steel continuous casting billet in hot rolling heating furnace |
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Application publication date: 20140625 |