CN105506269A - Continuous annealing unit phosphorus-containing high-strength steel anti-deviation method - Google Patents
Continuous annealing unit phosphorus-containing high-strength steel anti-deviation method Download PDFInfo
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- CN105506269A CN105506269A CN201510961505.9A CN201510961505A CN105506269A CN 105506269 A CN105506269 A CN 105506269A CN 201510961505 A CN201510961505 A CN 201510961505A CN 105506269 A CN105506269 A CN 105506269A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
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Abstract
The invention discloses a continuous annealing unit phosphorus-containing high-strength steel anti-deviation method. The method is characterized by comprising the steps of I, increasing the plate temperature of phosphorus-containing high-strength band steel in a continuous annealing furnace; and II, improving the comparison tension of a first heating section, and adjusting the composition tension of a second heating section and a third heating section, wherein in the step I, the process of increasing the plate temperature of phosphorus-containing high-strength band steel in the continuous annealing furnace comprises the steps of when the thickness of the hosphorus-containing high-strength band steel is smaller than or equal to 0.8 mm, enabling the plate temperature of phosphorus-containing high-strength band steel in the continuous annealing furnace to be 510 DEG C, when the thickness of the hosphorus-containing high-strength band steel is larger than 0.8 mm and smaller than or equal to 1.2 mm, enabling the plate temperature of phosphorus-containing high-strength band steel in the continuous annealing furnace to be 530 DEG C, and when the thickness of the hosphorus-containing high-strength band steel is larger than 1.2 mm, enabling the plate temperature of phosphorus-containing high-strength band steel in the continuous annealing furnace to be 550 DEG C or above. After the method is utilized, the situations that the phosphorus-containing high-strength band steel obviously deviates, speeds down, and scraps the furnace wall are avoided, the smooth production of the phosphorus-containing high-strength band steel is guaranteed, and the production quality and production efficiency of the phosphorus-containing high-strength band steel are improved.
Description
Technical field
The present invention relates to and a kind of company move back the anti-deviation method of the phosphorous high-strength steel of unit.
Background technology
Phosphorous high-strength steel is commonly used to car inner plate structural part; market demand is larger; the monthly demand about 3000 tons of the inner steel grade H2D2 of Wuhan Iron and Steel Plant; early stage is when producing such steel grade; almost every tape head heats one section of generation sideslip in stove; cause unit reduction of speed (minimum be down to 30m/min), even scrape furnace wall and cause losing in stove and to shut down, have a strong impact on production capacity and unit direct motion.
Phosphorous high-strength steel mainly relies on the alloying elements such as Mn and P to be solid-solution in matrix metal and causes lattice distortion to a certain degree thus intensity is improved, and reaches the effect of solution strengthening.If alloying element is carbide (such as Ti, Nb, V etc.), there is the effect of strong prevention Austenite Grain Growth, these elements easily obtain fine grained texture, and Mn, P etc. do not have the effect of this respect completely, and easily at Grain Boundary Segregation, during these constituent content height, because composition is different with grain size, thermal stresses is comparatively obvious, thermal stresses and rolling direction not parallel time be one of major reason causing sideslip.
Phosphorous high strength band steel heats one section has strong difference variation with preheating section, alloying element content and the difference organizing size, causes specific heat capacity different, occurs the thermal stresses different from line direction before band steel, cause strip running deviation in heat rises by process.
" simple analysis Angang Cold Rolled Strip Plant even moves back line strip running deviation problem " is from steel plate force analysis in annealing furnace, steel-making composition, hot rolling, steel plate hot distortion in cold rolling and annealing furnace, in annealing furnace, thermal stresses change angularly analyzes the reason of continuous annealing line sideslip, propose the plate shape precision and planeness that control incoming hot rolled slab, optimize cold rolling plan scheduling etc. and improve raw materials quality, the process optimization even moving back unit is advocated the temperature (in annealing furnace, the plate temperature of phosphorous high strength band steel is 470 ° under normal circumstances) of restriction heating one section, avoid heating one section excessive with the temperature head of preheating section, cause alloying element internal stresses release excessive, cause strip running deviation.
Through facts have proved in a large number, improving raw materials quality and deviation phenomenon is not improved; Restriction heating one section of temperature is also not improved deviation phenomenon.Therefore, we are in the urgent need to a kind of method that can prevent phosphorous high strength band steel sideslip.
Summary of the invention
The object of the present invention is to provide a kind of company to move back the anti-deviation method of the phosphorous high-strength steel of unit, the method can prevent phosphorous high strength band steel sideslip in annealing furnace.
The technical solution adopted in the present invention is: a kind of company moves back the anti-deviation method of the phosphorous high-strength steel of unit, comprises the steps:
One, improve the plate temperature of phosphorous high strength band steel in annealing furnace, increase the frictional coefficient of phosphorous high strength band steel;
Two, improve the ratio tension force of heating one section, the ratio tension force of adjustment heating two sections and heating three sections, increases the power that moves ahead of phosphorous high strength band steel, wherein than tension force (unit N/mm
2) represent the tension value being with steel unit surface, i.e. band steel actual tension value=than tension force * belt steel thickness * strip width;
In step one, by improving the plate temperature of phosphorous high strength band steel in annealing furnace, the step improving the frictional coefficient of phosphorous high strength band steel is:
If the thickness of phosphorous high strength band steel is δ;
As δ≤0.8mm, the plate temperature of phosphorous high strength band steel in annealing furnace is made to be 510 DEG C;
As 0.8mm < δ≤1.2mm, the plate temperature of phosphorous high strength band steel in annealing furnace is made to be 530 DEG C;
As δ > 1.2mm, make plate temperature >=550 DEG C of phosphorous high strength band steel in annealing furnace.
Further scheme is, in step 2, improve the ratio tension force of heating one section, the ratio tension force of adjustment heating two sections and heating three sections, the step increasing the power that moves ahead of phosphorous high strength band steel is:
If the thickness of phosphorous high strength band steel is δ, the width of phosphorous high strength band steel is d;
As δ≤1.00 ㎜, d < 1599mm, the ratio tension force making 3# tensioning roller is 8.60, the ratio tension force of preheating section and heating one section is 8.1, the ratio tension force of heating two sections is 5.8, the ratio tension force of heating three sections is 5.2;
When δ is≤1.00 ㎜, 1599mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 8.90, the ratio tension force of preheating section and heating one section is 8.4, the ratio tension force of heating two sections is 6.2, the ratio tension force of heating three sections is 5.6;
As 1.00 ㎜ < δ≤1.20 ㎜, during d < 1399mm, the ratio tension force making 3# tensioning roller is 9.00, the ratio tension force of preheating section and heating one section is 8.6, the ratio tension force of heating two sections is 7.9, the ratio tension force of heating three sections is 6.5;
As 1.00 ㎜ < δ≤1.20 ㎜, during 1399mm≤d < 1599mm, the ratio tension force making 3# tensioning roller is 9.50, the ratio tension force of preheating section and heating one section is 9.00, the ratio tension force of heating two sections is 7.5, the ratio tension force of heating three sections is 6.2;
As 1.00 ㎜ < δ≤1.20 ㎜, during 1599mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 8.90, the ratio tension force of preheating section and heating one section is 8.5, the ratio tension force of heating two sections is 7, the ratio tension force of heating three sections is 5.7;
As 1.20 ㎜ < δ≤1.50 ㎜, during d < 1399mm, the ratio tension force making 3# tensioning roller is 7.50, the ratio tension force of preheating section and heating one section is 6.60, the ratio tension force of heating two sections is 5.90, the ratio tension force of heating three sections is 5.10;
As 1.20 ㎜ < δ≤1.50 ㎜, during 1399mm≤d < 1599mm, the ratio tension force making 3# tensioning roller is 6.50, the ratio tension force of preheating section and heating one section is 5.50, the ratio tension force of heating two sections is 5.10, the ratio tension force of heating three sections is 4.50;
As 1.20 ㎜ < δ≤1.50 ㎜, during 1599mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 6.00, the ratio tension force of preheating section and heating one section is 5.4, the ratio tension force of heating two sections is 4.2, the ratio tension force of heating three sections is 3.7;
As 1.50 ㎜ < δ≤1.85 ㎜, during d < 1599mm, the ratio tension force making 3# tensioning roller is 6.30, the ratio tension force of preheating section and heating one section is 6, the ratio tension force of heating two sections is 5.3, the ratio tension force of heating three sections is 4;
As 1.50 ㎜ < δ≤1.85 ㎜, during 1599mm≤d < 1650mm, the ratio tension force making 3# tensioning roller is 6.10, the ratio tension force of preheating section and heating one section is 5.7, the ratio tension force of heating two sections is 4.9, the ratio tension force of heating three sections is 4;
As 1.50 ㎜ < δ≤1.85 ㎜, during 1650mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 5.90, the ratio tension force of preheating section and heating one section is 5.50, the ratio tension force of heating two sections is 4.90, the ratio tension force of heating three sections is 4.00.
The beneficial effect that the present invention produces is: by improving the plate temperature of phosphorous high strength band steel in annealing furnace, to increase the frictional coefficient of phosphorous high strength band steel, and then prevent phosphorous high strength band steel sideslip; In existing annealing furnace, the plate temperature of phosphorous high strength band steel controls usually at 470 DEG C, and thinks that the internal stress that can make phosphorous high strength band steel more than 470 DEG C becomes greatly, is unfavorable for suppressing phosphorous high strength band steel sideslip.Therefore in existing annealing furnace the plate Wen Junwei of phosphorous high strength band steel more than 470 DEG C; The plate temperature of phosphorous high strength band steel is increased to more than 510 DEG C by the application, makes phosphorous high strength band steel softer, thus prevents phosphorous high strength band steel sideslip, makes it can not scratch furnace wall.By improving the ratio tension force of heating one section, the ratio tension force of adjustment heating two sections and heating three sections, to increase the power that moves ahead of phosphorous high strength band steel, to prevent phosphorous high strength band steel sideslip.After using present method, there is not obvious phosphorous high strength band steel sideslip reduction of speed and scrape furnace wall situation, ensure that the production of phosphorous high strength band steel is smooth, improve the quality of production and the production efficiency of phosphorous high strength band steel.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the running deviation value of the heating one section of 8#CPC not using the method;
Fig. 2 is the running deviation value of the heating one section of 8#CPC using the method.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Annealing furnace district tension force is beneficial to correction greatly, but too high tension force can cause phosphorous high strength band steel drawing down in stove, and the most high tensile upper limit that simultaneously must keep setting in original design causes jumping electricity to avoid furnace roller motor to exceed load.
Solution is: improve heating one section of tension force, and corresponding adjustment is done in each section of other stove districts on this basis.Because preheating section is to soaking zone no-station pole canopy roller, therefore accurate adjustment need be carried out during other each section of tension adjustment.Table 1 is that annealing furnace district is than tension force setting table.
Table 1 stove district is than tension force setting table
A kind of company moves back the anti-deviation method of the phosphorous high-strength steel of unit, comprises the steps:
One, improve the plate temperature of phosphorous high strength band steel in annealing furnace, increase the frictional coefficient of phosphorous high strength band steel;
Two, improve the ratio tension force of heating one section, the ratio tension force of adjustment heating two sections and heating three sections, increases the power that moves ahead of phosphorous high strength band steel;
In step one, by improving the plate temperature of phosphorous high strength band steel in annealing furnace, the step improving the frictional coefficient of phosphorous high strength band steel is:
If the thickness of phosphorous high strength band steel is δ;
As δ≤0.8mm, the plate temperature of phosphorous high strength band steel in annealing furnace is made to be 510 DEG C;
As 0.8mm < δ≤1.2mm, the plate temperature of phosphorous high strength band steel in annealing furnace is made to be 530 DEG C;
As δ > 1.2mm, make plate temperature >=550 DEG C of phosphorous high strength band steel in annealing furnace;
In step 2, improve the ratio tension force of heating one section, the ratio tension force of adjustment heating two sections and heating three sections, the step increasing the power that moves ahead of phosphorous high strength band steel is:
If the thickness of phosphorous high strength band steel is δ, the width of phosphorous high strength band steel is d;
As δ≤1.00 ㎜, d < 1599mm, the ratio tension force making 3# tensioning roller is 8.60, the ratio tension force of preheating section and heating one section is 8.1, the ratio tension force of heating two sections is 5.8, the ratio tension force of heating three sections is 5.2;
As δ≤1.00 ㎜, 1599mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 8.90, the ratio tension force of preheating section and heating one section is 8.4, the ratio tension force of heating two sections is 6.2, the ratio tension force of heating three sections is 5.6;
As 1.00 ㎜ < δ≤1.20 ㎜, during d < 1399mm, the ratio tension force making 3# tensioning roller is 9.00, the ratio tension force of preheating section and heating one section is 8.6, the ratio tension force of heating two sections is 7.9, the ratio tension force of heating three sections is 6.5;
As 1.00 ㎜ < δ≤1.20 ㎜, during 1399mm≤d < 1599mm, the ratio tension force making 3# tensioning roller is 9.50, the ratio tension force of preheating section and heating one section is 9.00, the ratio tension force of heating two sections is 7.5, the ratio tension force of heating three sections is 6.2;
As 1.00 ㎜ < δ≤1.20 ㎜, during 1599mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 8.90, the ratio tension force of preheating section and heating one section is 8.5, the ratio tension force of heating two sections is 7, the ratio tension force of heating three sections is 5.7;
As 1.20 ㎜ < δ≤1.50 ㎜, during d < 1399mm, the ratio tension force making 3# tensioning roller is 7.50, the ratio tension force of preheating section and heating one section is 6.60, the ratio tension force of heating two sections is 5.90, the ratio tension force of heating three sections is 5.10;
As 1.20 ㎜ < δ≤1.50 ㎜, during 1399mm≤d < 1599mm, the ratio tension force making 3# tensioning roller is 6.50, the ratio tension force of preheating section and heating one section is 5.50, the ratio tension force of heating two sections is 5.10, the ratio tension force of heating three sections is 4.50;
As 1.20 ㎜ < δ≤1.50 ㎜, during 1599mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 6.00, the ratio tension force of preheating section and heating one section is 5.4, the ratio tension force of heating two sections is 4.2, the ratio tension force of heating three sections is 3.7;
As 1.50 ㎜ < δ≤1.85 ㎜, during d < 1599mm, the ratio tension force making 3# tensioning roller is 6.30, the ratio tension force of preheating section and heating one section is 6, the ratio tension force of heating two sections is 5.3, the ratio tension force of heating three sections is 4;
As 1.50 ㎜ < δ≤1.85 ㎜, during 1599mm≤d < 1650mm, the ratio tension force making 3# tensioning roller is 6.10, the ratio tension force of preheating section and heating one section is 5.7, the ratio tension force of heating two sections is 4.9, the ratio tension force of heating three sections is 4;
As 1.50 ㎜ < δ≤1.85 ㎜, during 1650mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 5.90, the ratio tension force of preheating section and heating one section is 5.50, the ratio tension force of heating two sections is 4.90, the ratio tension force of heating three sections is 4.00.
Fig. 1 and Fig. 2 is the running deviation value contrast using the company before and after the method to move back unit heat one section of 8#CPC, and by tape head sideslip before using, running deviation value at 50-240mm not etc., uses rear running deviation value can control at 50-100mm, technology implementation successful.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (2)
1. the anti-deviation method of the phosphorous high-strength steel of unit is moved back by company, it is characterized in that comprising the steps:
One, the plate temperature of phosphorous high strength band steel in annealing furnace is improved;
Two, the ratio tension force of heating one section is improved, the ratio tension force of adjustment heating two sections and heating three sections;
In step one, the step improving the plate temperature of phosphorous high strength band steel in annealing furnace is:
If the thickness of phosphorous high strength band steel is δ;
As δ≤0.8mm, the plate temperature of phosphorous high strength band steel in annealing furnace is made to be 510 DEG C;
As 0.8mm < δ≤1.2mm, the plate temperature of phosphorous high strength band steel in annealing furnace is made to be 530 DEG C;
As δ > 1.2mm, make plate temperature >=550 DEG C of phosphorous high strength band steel in annealing furnace.
2. the anti-deviation method of the phosphorous high-strength steel of unit is moved back by company according to claim 1, it is characterized in that:
In step 2, improve the ratio tension force of heating one section, the step of the ratio tension force of adjustment heating two sections and heating three sections is:
If the thickness of phosphorous high strength band steel is δ, the width of phosphorous high strength band steel is d;
As δ≤1.00 ㎜, d < 1599mm, the ratio tension force making 3# tensioning roller is 8.60, the ratio tension force of preheating section and heating one section is 8.1, the ratio tension force of heating two sections is 5.8, the ratio tension force of heating three sections is 5.2;
When δ is≤1.00 ㎜, 1599mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 8.90, the ratio tension force of preheating section and heating one section is 8.4, the ratio tension force of heating two sections is 6.2, the ratio tension force of heating three sections is 5.6;
As 1.00 ㎜ < δ≤1.20 ㎜, during d < 1399mm, the ratio tension force making 3# tensioning roller is 9.00, the ratio tension force of preheating section and heating one section is 8.6, the ratio tension force of heating two sections is 7.9, the ratio tension force of heating three sections is 6.5;
As 1.00 ㎜ < δ≤1.20 ㎜, during 1399mm≤d < 1599mm, the ratio tension force making 3# tensioning roller is 9.50, the ratio tension force of preheating section and heating one section is 9.00, the ratio tension force of heating two sections is 7.5, the ratio tension force of heating three sections is 6.2;
As 1.00 ㎜ < δ≤1.20 ㎜, during 1599mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 8.90, the ratio tension force of preheating section and heating one section is 8.5, the ratio tension force of heating two sections is 7, the ratio tension force of heating three sections is 5.7;
As 1.20 ㎜ < δ≤1.50 ㎜, during d < 1399mm, the ratio tension force making 3# tensioning roller is 7.50, the ratio tension force of preheating section and heating one section is 6.60, the ratio tension force of heating two sections is 5.90, the ratio tension force of heating three sections is 5.10;
As 1.20 ㎜ < δ≤1.50 ㎜, during 1399mm≤d < 1599mm, the ratio tension force making 3# tensioning roller is 6.50, the ratio tension force of preheating section and heating one section is 5.50, the ratio tension force of heating two sections is 5.10, the ratio tension force of heating three sections is 4.50;
As 1.20 ㎜ < δ≤1.50 ㎜, during 1599mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 6.00, the ratio tension force of preheating section and heating one section is 5.4, the ratio tension force of heating two sections is 4.2, the ratio tension force of heating three sections is 3.7;
As 1.50 ㎜ < δ≤1.85 ㎜, during d < 1599mm, the ratio tension force making 3# tensioning roller is 6.30, the ratio tension force of preheating section and heating one section is 6, the ratio tension force of heating two sections is 5.3, the ratio tension force of heating three sections is 4;
As 1.50 ㎜ < δ≤1.85 ㎜, during 1599mm≤d < 1650mm, the ratio tension force making 3# tensioning roller is 6.10, the ratio tension force of preheating section and heating one section is 5.7, the ratio tension force of heating two sections is 4.9, the ratio tension force of heating three sections is 4;
As 1.50 ㎜ < δ≤1.85 ㎜, during 1650mm≤d < 1799mm, the ratio tension force making 3# tensioning roller is 5.90, the ratio tension force of preheating section and heating one section is 5.50, the ratio tension force of heating two sections is 4.90, the ratio tension force of heating three sections is 4.00.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864517A (en) * | 2010-06-08 | 2010-10-20 | 首钢总公司 | Integrated optimization and setting method of tension in continuous annealing set furnace of continuous annealing set |
| CN102719742A (en) * | 2012-06-18 | 2012-10-10 | 首钢总公司 | Limit-specification IF steel and furnace zone through plate method thereof |
| CN103255277A (en) * | 2013-04-28 | 2013-08-21 | 首钢京唐钢铁联合有限责任公司 | Method for producing wide and thin IF steel by continuous annealing |
| CN104131152A (en) * | 2014-07-15 | 2014-11-05 | 首钢总公司 | Buckling treatment method of thin and wide specification IF steel in furnace |
| CN104152656A (en) * | 2014-08-12 | 2014-11-19 | 首钢京唐钢铁联合有限责任公司 | Control method for stable through plate of cold-rolled strip steel with thick and narrow specifications |
-
2015
- 2015-12-18 CN CN201510961505.9A patent/CN105506269B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864517A (en) * | 2010-06-08 | 2010-10-20 | 首钢总公司 | Integrated optimization and setting method of tension in continuous annealing set furnace of continuous annealing set |
| CN102719742A (en) * | 2012-06-18 | 2012-10-10 | 首钢总公司 | Limit-specification IF steel and furnace zone through plate method thereof |
| CN103255277A (en) * | 2013-04-28 | 2013-08-21 | 首钢京唐钢铁联合有限责任公司 | Method for producing wide and thin IF steel by continuous annealing |
| CN104131152A (en) * | 2014-07-15 | 2014-11-05 | 首钢总公司 | Buckling treatment method of thin and wide specification IF steel in furnace |
| CN104152656A (en) * | 2014-08-12 | 2014-11-19 | 首钢京唐钢铁联合有限责任公司 | Control method for stable through plate of cold-rolled strip steel with thick and narrow specifications |
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