CN103866214B - A kind of smooth optimization method for eliminating edge break print - Google Patents
A kind of smooth optimization method for eliminating edge break print Download PDFInfo
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- CN103866214B CN103866214B CN201410078544.XA CN201410078544A CN103866214B CN 103866214 B CN103866214 B CN 103866214B CN 201410078544 A CN201410078544 A CN 201410078544A CN 103866214 B CN103866214 B CN 103866214B
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- steel cold
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Abstract
The invention discloses a kind of smooth optimization method for eliminating edge break print, belonging to steel material technical field.Described for eliminate edge break print smooth optimization method comprise the following steps: step 1, take the lead the raising speed stage adopt Constant dvaught pressure control; Step 2, adopts permanent elongation control pattern in band; Step 3, magnetic tape trailer cancels permanent elongation control, adopts Constant dvaught pressure control.A kind of smooth optimization method for eliminating edge break print of the present invention can produce the carbon aluminium-killed steel cold-reduced sheet with boundless pincher, substantially increases quality product.
Description
Technical field
The present invention relates to steel material technical field, particularly a kind of smooth optimization method for eliminating edge break print.
Background technology
Carbon aluminium-killed steel cold-reduced sheet (as SPCC, DC01, DC03 etc.), is used for automobile, household electrical appliances and building industry etc., usually adopts the explained hereafter of annealing+smooth.But in formation process after annealing, due to reasons such as steel edge portion rolling pressure are low, easily there is limit pincher in low carbon aluminum-killed steel plate edge.
Summary of the invention
Technical problem to be solved by this invention is to provide the carbon aluminium-killed steel cold-reduced sheet that a kind of production has boundless pincher, substantially increases the smooth optimization method of the elimination edge break print of quality product.
For solving the problems of the technologies described above, the invention provides a kind of smooth optimization method for eliminating edge break print, for carbon aluminium-killed steel cold-reduced sheet; Smooth optimization method comprises the following steps: step 1, and the raising speed stage of taking the lead of carbon aluminium-killed steel cold-reduced sheet adopts Constant dvaught pressure control, adopts negative curved control; Step 2, adopts permanent elongation control pattern in the band of carbon aluminium-killed steel cold-reduced sheet; Step 3, Abrollhaspel residue 100m, the magnetic tape trailer of carbon aluminium-killed steel cold-reduced sheet cancels permanent elongation control, adopts Constant dvaught pressure control, adopts negative curved control.
Further, the rolling load scope of step 1 is 1500-1800KN.
Further, step 1 controls unit elongation is target value+0.2%.
Further, the rolling load scope of step 3 is 1500-1800KN.
Further, step 3 controls unit elongation is target value+0.2%.
Further, the chemical composition of described carbon aluminium-killed steel cold-reduced sheet is C:0.01-0.07, Si:0.01-0.20, Mn:0.05-0.40, P :≤0.020, S :≤0.015, N≤0.006, Al:0.02-0.07; All the other are Fe and inevitable impurity.
A kind of smooth optimization method for eliminating edge break print provided by the invention adopts Constant dvaught pressure control in the raising speed stage of taking the lead of carbon aluminium-killed steel cold-reduced sheet, adopt negative curved control, permanent elongation control pattern is adopted in the band of carbon aluminium-killed steel cold-reduced sheet, Abrollhaspel residue 100m, the magnetic tape trailer of carbon aluminium-killed steel cold-reduced sheet cancels permanent elongation control, adopt Constant dvaught pressure control, adopt negative curved control, the carbon aluminium-killed steel cold-reduced sheet with boundless pincher can be produced, substantially increase quality product.
Accompanying drawing explanation
The principle schematic of the smooth optimization method for eliminating edge break print that Fig. 1 provides for the embodiment of the present invention.
Embodiment
See Fig. 1, a kind of smooth optimization method for eliminating edge break print that the embodiment of the present invention provides, comprise the following steps: step 1, the raising speed stage of taking the lead of carbon aluminium-killed steel cold-reduced sheet adopts Constant dvaught pressure control, adopts negative curved control; Step 2, adopts permanent elongation control pattern in the band of carbon aluminium-killed steel cold-reduced sheet; Step 3, Abrollhaspel residue 100m, the magnetic tape trailer of carbon aluminium-killed steel cold-reduced sheet cancels permanent elongation control, adopts Constant dvaught pressure control, adopts negative curved control.
The carbon aluminium-killed steel cold-reduced sheet adopted, its chemical composition is (wt%): C:0.01-0.07, Si:0.01-0.20, Mn:0.05-0.40, P :≤0.020, S :≤0.015, N≤0.006, Al:0.02-0.07, and all the other are Fe and inevitable impurity.Carbon aluminium-killed steel cold-reduced sheet is smelted, cast, then carries out hot rolling, pickling, cold rolling and bell-type annealing.When carrying out elimination edge break print, carbon aluminium-killed steel cold-reduced sheet is taken the lead the raising speed stage (about 30 ~ 200mpm) and is adopted Constant dvaught pressure control, rolling load 1500-1800KN, and controls unit elongation is target value+0.2%, adopts and bears curved control strategy.Permanent elongation control pattern is adopted in carbon aluminium-killed steel cold rolled sheet.Carbon aluminium-killed steel cold-reduced sheet magnetic tape trailer reduction of speed is to about 200mpm, and during Abrollhaspel residue 100m, cancel permanent elongation control, drop into Constant dvaught pressure control, rolling load 1500KN to 1800KN, control unit elongation is target value+0.2%, adopts negative curved control strategy.Smooth carbon aluminium-killed steel cold rolled sheet is easy to the situation occurring limit pincher end to end, adopt negative curved increasing to the rolling of carbon aluminium-killed steel cold-reduced sheet edge on the one hand, adopt rolling load pattern end to end on the other hand, strengthen carbon aluminium-killed steel cold-reduced sheet rolling load end to end, eliminate limit pincher.Make carbon aluminium-killed steel cold-reduced sheet head, middle and end performance inconsistency within 20Mpa, although major cause be carbon aluminium-killed steel cold-reduced sheet end to end smooth rate bring certain yield strength to increase higher than middle part, but carbon aluminium-killed steel cold rolled sheet steel toe tail soaking time when bell-type annealing is thus softer than middle long, therefore the two comprehensive effect be the head, middle and end performance inconsistency of carbon aluminium-killed steel cold-reduced sheet than under permanent unit elongation mode situation evenly.
Embodiment 1
The carbon aluminium-killed steel cold-reduced sheet adopted, its chemical composition is (wt%): C:0.07, Si:0.20, Mn:0.40, P :≤0.020, S :≤0.015, N≤0.006, Al:0.07, and all the other are Fe and inevitable impurity.Carbon aluminium-killed steel cold-reduced sheet is smelted, cast, then carries out hot rolling, pickling, cold rolling and bell-type annealing.When carrying out elimination edge break print, carbon aluminium-killed steel cold-reduced sheet is taken the lead the raising speed stage, and (as 200mpm) adopts Constant dvaught pressure control, rolling load 1800KN, and control unit elongation is target value+0.2%, adopts negative curved control strategy.Permanent elongation control pattern is adopted in carbon aluminium-killed steel cold rolled sheet.Carbon aluminium-killed steel cold-reduced sheet magnetic tape trailer reduction of speed is to about 200mpm, and during Abrollhaspel residue 100m, cancel permanent elongation control, drop into Constant dvaught pressure control, rolling load 1800KN, control unit elongation is target value+0.2%, adopts negative curved control strategy.Smooth carbon aluminium-killed steel cold rolled sheet is easy to the situation occurring limit pincher end to end, adopt negative curved increasing to the rolling of carbon aluminium-killed steel cold-reduced sheet edge on the one hand, adopt rolling load pattern end to end on the other hand, strengthen carbon aluminium-killed steel cold-reduced sheet rolling load end to end, eliminate limit pincher.Make carbon aluminium-killed steel cold-reduced sheet head, middle and end performance inconsistency within 20Mpa.
Embodiment 2
The carbon aluminium-killed steel cold-reduced sheet adopted, its chemical composition is (wt%): C:0.01, Si:0.01, Mn:0.05, P :≤0.020, S :≤0.015, N≤0.006, Al:0.02, and all the other are Fe and inevitable impurity.Carbon aluminium-killed steel cold-reduced sheet is smelted, cast, then carries out hot rolling, pickling, cold rolling and bell-type annealing.When carrying out elimination edge break print, carbon aluminium-killed steel cold-reduced sheet is taken the lead the raising speed stage, and (as 30mpm) adopts Constant dvaught pressure control, rolling load 1500KN, and control unit elongation is target value+0.2%, adopts negative curved control strategy.Permanent elongation control pattern is adopted in carbon aluminium-killed steel cold rolled sheet.Carbon aluminium-killed steel cold-reduced sheet magnetic tape trailer reduction of speed is to about 200mpm, and during Abrollhaspel residue 100m, cancel permanent elongation control, drop into Constant dvaught pressure control, rolling load 1500KN, control unit elongation is target value+0.2%, adopts negative curved control strategy.Smooth carbon aluminium-killed steel cold rolled sheet is easy to the situation occurring limit pincher end to end, adopt negative curved increasing to the rolling of carbon aluminium-killed steel cold-reduced sheet edge on the one hand, adopt rolling load pattern end to end on the other hand, strengthen carbon aluminium-killed steel cold-reduced sheet rolling load end to end, eliminate limit pincher.Make carbon aluminium-killed steel cold-reduced sheet head, middle and end performance inconsistency at 20Mpa.
Embodiment 3
The carbon aluminium-killed steel cold-reduced sheet adopted, its chemical composition is (wt%): C:0.05, Si:0.10, Mn:0.20, P :≤0.020, S :≤0.015, N≤0.006, Al:0.04, and all the other are Fe and inevitable impurity.Carbon aluminium-killed steel cold-reduced sheet is smelted, cast, then carries out hot rolling, pickling, cold rolling and bell-type annealing.When carrying out elimination edge break print, carbon aluminium-killed steel cold-reduced sheet is taken the lead the raising speed stage, and (as 100mpm) adopts Constant dvaught pressure control, rolling load 1600KN, and control unit elongation is target value+0.2%, adopts negative curved control strategy.Permanent elongation control pattern is adopted in carbon aluminium-killed steel cold rolled sheet.Carbon aluminium-killed steel cold-reduced sheet magnetic tape trailer reduction of speed is to about 200mpm, and during Abrollhaspel residue 100m, cancel permanent elongation control, drop into Constant dvaught pressure control, rolling load 1600KN, control unit elongation is target value+0.2%, adopts negative curved control strategy.Smooth carbon aluminium-killed steel cold rolled sheet is easy to the situation occurring limit pincher end to end, adopt negative curved increasing to the rolling of carbon aluminium-killed steel cold-reduced sheet edge on the one hand, adopt rolling load pattern end to end on the other hand, strengthen carbon aluminium-killed steel cold-reduced sheet rolling load end to end, eliminate limit pincher.Make carbon aluminium-killed steel cold-reduced sheet head, middle and end performance inconsistency within 20Mpa.
A kind of smooth optimization method for eliminating edge break print provided by the invention adopts Constant dvaught pressure control in the raising speed stage of taking the lead of carbon aluminium-killed steel cold-reduced sheet, adopt negative curved control, permanent elongation control pattern is adopted in the band of carbon aluminium-killed steel cold-reduced sheet, Abrollhaspel residue 100m, the magnetic tape trailer of carbon aluminium-killed steel cold-reduced sheet cancels permanent elongation control, adopt Constant dvaught pressure control, adopt negative curved control, can produce the carbon aluminium-killed steel cold-reduced sheet with boundless pincher, substantially increase quality product.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. for eliminating a smooth optimization method for edge break print, for carbon aluminium-killed steel cold-reduced sheet; It is characterized in that, comprise the following steps: step 1, the raising speed stage of taking the lead of carbon aluminium-killed steel cold-reduced sheet adopts Constant dvaught pressure control, adopts negative curved control; Step 2, adopts permanent elongation control pattern in the band of carbon aluminium-killed steel cold-reduced sheet; Step 3, Abrollhaspel residue 100m, the magnetic tape trailer of carbon aluminium-killed steel cold-reduced sheet cancels permanent elongation control, adopts Constant dvaught pressure control, adopts negative curved control.
2. smooth optimization method according to claim 1, is characterized in that: the rolling load scope of step 1 is 1500-1800kN.
3. smooth optimization method according to claim 1, is characterized in that: it is target value+0.2% that step 1 controls unit elongation.
4. smooth optimization method according to claim 1, is characterized in that: the rolling load scope of step 3 is 1500-1800kN.
5. smooth optimization method according to claim 1, is characterized in that: it is target value+0.2% that step 3 controls unit elongation.
6. smooth optimization method according to claim 1, is characterized in that: the chemical component weight per-cent of described carbon aluminium-killed steel cold-reduced sheet is C:0.01-0.07, Si:0.01-0.20, Mn:0.05-0.40, P :≤0.020, S :≤0.015, N≤0.006, Al:0.02-0.07; All the other are Fe and inevitable impurity.
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| CN104923574B (en) * | 2015-07-02 | 2017-01-04 | 首钢总公司 | Strip steel leveling control method |
| CN105032932B (en) * | 2015-08-11 | 2017-12-01 | 北京首钢冷轧薄板有限公司 | A kind of processing method of cold-strip steel side pincher |
| CN107695109B (en) * | 2017-09-15 | 2019-10-11 | 攀钢集团攀枝花钢钒有限公司 | Skin pass mill group milling method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1840255A (en) * | 2005-03-28 | 2006-10-04 | 宝山钢铁股份有限公司 | Extension coefficient and plate shape integrated control method in steel strip flattening process |
| CN1923391A (en) * | 2005-08-30 | 2007-03-07 | 宝山钢铁股份有限公司 | Integrate optimized controlling means for planisher elongation roll-force, tension, and roll-bending force |
| CN103589948A (en) * | 2013-11-07 | 2014-02-19 | 首钢总公司 | Low-carbon-aluminum killed steel hot-galvanized plate and production method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1840255A (en) * | 2005-03-28 | 2006-10-04 | 宝山钢铁股份有限公司 | Extension coefficient and plate shape integrated control method in steel strip flattening process |
| CN1923391A (en) * | 2005-08-30 | 2007-03-07 | 宝山钢铁股份有限公司 | Integrate optimized controlling means for planisher elongation roll-force, tension, and roll-bending force |
| CN103589948A (en) * | 2013-11-07 | 2014-02-19 | 首钢总公司 | Low-carbon-aluminum killed steel hot-galvanized plate and production method thereof |
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Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |