CN104307891A - Stepped hot rolled strip production line laminar flow cooling control method - Google Patents
Stepped hot rolled strip production line laminar flow cooling control method Download PDFInfo
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- CN104307891A CN104307891A CN201410623816.XA CN201410623816A CN104307891A CN 104307891 A CN104307891 A CN 104307891A CN 201410623816 A CN201410623816 A CN 201410623816A CN 104307891 A CN104307891 A CN 104307891A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
- B21B37/76—Cooling control on the run-out table
Abstract
The invention discloses a stepped hot rolled strip production line laminar flow cooling control method. The method comprises the following steps: I, setting the temperature of the head of strip steel: calculating temperature to be cooled of the head of the strip steel by a laminar flow cooling control model through rolling temperature, stepped cooling compensation temperature and strip steel head finish rolling temperature; II, setting a strip steel head cooling scheme: calculating cooling water quantity of the laminar flow of the head of the strip steel by the laminar flow cooling control model according to the temperature to be cooled of the head of the strip steel and the speed of the strip steel, and then determining the cooling water nozzle distribution of the laminar flow according to a cooling strategy in the laminar flow cooling control model; III, setting the temperature of the tail part in the strip steel: calculating the temperature to be cooled of the tail part in the strip steel by the laminar flow cooling control model through the finish rolling temperature of the tail part in the strip steel; IV, setting the cooling scheme of the tail part in the strip steel. The method has the characteristics that the turn-up of the head of the strip steel on a track is prevented and folding and unwinding are prevented from occurring on the inner ring of a steel coil, and can be widely applied to the field of production of hot rolled strips.
Description
Technical field
The present invention relates to hot-strip production field, particularly relate to a kind of staged hot-strip and produce line control method for laminar cooling.
Background technology
Along with the development of hot rolling technology and the competition of steel market, the thin material rolling of " with hot Dai Leng " becomes one of Main way of hot continuous rolling development.This is because CSP has congenital advantage in production thin material: rolled piece homogeneous temperature, rolling stability are high, therefore, have the ability of large-scale production Thin Strip Steel.But produce for the thin material of below thickness 2.0mm, because band steel threading speed is high, rolled piece and equipment precision requirement high, conventional hot continuous rolling machine is difficult to realize scale, steady production.
CSP (the Compact Strip Production of domestic many steel mills, close-coupled output strip line) produce line in thin material production process, frequent appearance band steel is dug or piles the situations such as steel on roller-way, or occurs batching the problems such as the folding or inner ring of steel coil loose winding of rear strip steel head.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology, there is provided a kind of staged hot-strip to produce line control method for laminar cooling, there is the stable operation on section cooling roller-way of guarantee Thin Strip Steel, prevent strip steel head from digging on roller-way, avoid inner ring of steel coil to occur feature that is folding and loose winding.
A kind of staged hot-strip provided by the invention produces line control method for laminar cooling, comprise the steps: that step one, strip steel head temperature set: laminar flow cooling control model obtains the coiling temperature T2 that should control according to produced steel grade and thickness, calculate ladder cooling Bu simultaneously and repay Wen Du ⊿ T1 (described ladder cooling compensation temperature refers to the temperature approach between coiling temperature T2 and strip steel head target control temperature, coiling temperature T2 is the yield strength of laminar flow cooling control model according to band steel, tensile strength and percentage elongation calculate, if but defer to coiling temperature T2 completely as control objectives, can cause occurring that band steel is dug or piles the situations such as steel on roller-way as mentioned in the background art, or there is batching the problems such as the folding or inner ring of steel coil loose winding of rear strip steel head, need in this case to adjust strip steel head target control temperature, introduce ladder cooling Bu and repay Wen Du ⊿ T1, make in not influence zone steel yield strength, under the prerequisite of tensile strength and percentage elongation, accomplish to ensure Thin Strip Steel stable operation on section cooling roller-way, prevent strip steel head from digging on roller-way, inner ring of steel coil is avoided to occur appearance that is folding and loose winding, strip steel head target control temperature after Wen Du ⊿ T1 is repaid compared with coiling temperature T2 owing to introducing ladder cooling Bu, in coordinate diagram just as the ladder declined suddenly, the ladder that hence obtains one's name cooling Bu repays Wen Du ⊿ T1, because the steel defect mentioned in background technology only occurs in strip steel head, in band steel, afterbody does not have this defect, so control at coiling temperature T2 to the temperature of afterbody in band steel, repay Wen Du ⊿ T1 control without the need to introducing ladder cooling Bu), obtain strip steel head target control temperature T2+ ⊿ T1, when strip steel head enters section cooling roller-way, the finishing temperature that finish to gauge pyrometer records strip steel head is T1, and laminar flow cooling control model calculates the temperature T1-T2-⊿ T1 that strip steel head needs cooling, step 2, strip steel head cooling scheme are arranged: laminar flow cooling control model needs the temperature T1-T2-⊿ T1 of cooling and the speed V of band steel according to strip steel head, converse strip steel head section cooling water yield h1, then determine according to the cooling strategy in laminar flow cooling control model the cooling distribution that laminar cooling water is chewed, tail temperature setting in step 3, band steel: when afterbody enters section cooling roller-way in band steel, the finishing temperature that finish to gauge pyrometer records afterbody in band steel is T1, and laminar flow cooling control model calculates afterbody in band steel needs the temperature T1-T2 of cooling, in step 4, band steel, blade trailing cooling scheme is arranged: laminar flow cooling control model needs the speed V of the temperature T1-T2 of cooling, band steel and time to carry out integral and calculating according to afterbody in band steel, converse afterbody section cooling water yield h2 in band steel, the cooling distribution that laminar cooling water is chewed is determined again according to the cooling strategy in laminar flow cooling control model, in cooling procedure, the water yield carries out dynamic conditioning, realize coiling temperature T2 according to target to control, until the cooling of band steel terminates.
In technique scheme, also comprise step 5, self study correction: laminar flow cooling control model can be revised according to the head temperature batching this block steel that pyrometer records or upper block steel, the coiling temperature T2 of afterbody in correction tape steel, correction value Wei ⊿ T2, realizes the accurate control of strip steel head temperature.
In technique scheme, in described step 5, described self study correction comprises short-term self study and long-term self study, and described short-term self study is the head temperature for this block band steel, the coiling temperature T2 of afterbody in this block of laminar flow cooling control Modifying model band steel; Described long-term self study is for lower block of band steel in cooling procedure, and laminar flow cooling control model can according to the coiling temperature T2 of afterbody in block band steel under the head temperature correction of upper block band steel.
In technique scheme, described strip steel head≤5m.
In technique scheme, described section cooling roller-way is divided into fine setting section and accurate adjustment section, and described fine setting section is presetting section, and described accurate adjustment section is dynamic conditioning section.
Staged hot-strip of the present invention produces line control method for laminar cooling, there is following beneficial effect: the present invention adopts the coiling temperature of stepped type of cooling control cincture steel head, namely on the basis of former coiling temperature, by positive and negative compensating band steel head temperature, by the oiler temperature control of strip steel head within the specific limits, realize strip steel head plate shape, glacing flatness and hardness moderate, guarantee that strip steel head is in even running, realize Thin Strip Steel batch smoothly and after rolling scroll good, concrete effect is as follows:
1. the present invention does not need reforming equipment in implementation process, and existing equipment and control just can use;
2. the present invention is applicable to the production of all hot rolling thin strips, adopt the method substantially can cancellation band steel digging on roller-way, pile steel and inner ring of steel coil folds, the generation of loose winding, according to statistics, the probability dug on roller-way with steel drops to 0.2% by 15%, and inner ring of steel coil folds, the probability of loose winding drops within 0.5% by 8%;
3. the present invention simple and easy to do, be easy to operation, practical.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that staged hot-strip of the present invention produces line control method for laminar cooling;
Fig. 2 is that when in staged hot-strip of the present invention product line control method for laminar cooling, ladder cooling compensation temperature is negative, coiling temperature compares schematic diagram with strip steel head target control temperature;
Fig. 3 is that when in staged hot-strip of the present invention product line control method for laminar cooling, ladder cooling compensation temperature is positive number, coiling temperature compares schematic diagram with strip steel head target control temperature;
Fig. 4 is the structural representation that staged hot-strip of the present invention produces the section of fine setting and accurate adjustment section in line control method for laminar cooling.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail, but this embodiment should not be construed as limitation of the present invention.
See Fig. 1, staged hot-strip of the present invention produces line control method for laminar cooling, comprises the steps:
Step one, strip steel head temperature setting (described strip steel head≤5m): laminar flow cooling control model obtains the coiling temperature T2 that should control according to produced steel grade and thickness, calculate ladder cooling Bu simultaneously and repay Wen Du ⊿ T1 (described ladder cooling compensation temperature refers to the temperature approach between coiling temperature T2 and strip steel head target control temperature, coiling temperature T2 is the yield strength of laminar flow cooling control model according to band steel, tensile strength and percentage elongation calculate, if but defer to coiling temperature T2 completely as control objectives, can cause occurring that band steel is dug or piles the situations such as steel on roller-way as mentioned in the background art, or there is batching the problems such as the folding or inner ring of steel coil loose winding of rear strip steel head, need in this case to adjust strip steel head target control temperature, introduce ladder cooling Bu and repay Wen Du ⊿ T1, make in not influence zone steel yield strength, under the prerequisite of tensile strength and percentage elongation, accomplish to ensure Thin Strip Steel stable operation on section cooling roller-way, prevent strip steel head from digging on roller-way, inner ring of steel coil is avoided to occur appearance that is folding and loose winding, strip steel head target control temperature after Wen Du ⊿ T1 is repaid compared with coiling temperature T2 owing to introducing ladder cooling Bu, in coordinate diagram just as the ladder declined suddenly, the ladder that hence obtains one's name cooling Bu repays Wen Du ⊿ T1, because the steel defect mentioned in background technology only occurs in strip steel head, in band steel, afterbody does not have this defect, so control at coiling temperature T2 to the temperature of afterbody in band steel, repay Wen Du ⊿ T1 control without the need to introducing ladder cooling Bu), obtain strip steel head target control temperature T2+ ⊿ T1, when strip steel head enters section cooling roller-way, the finishing temperature that finish to gauge pyrometer records strip steel head is T1, and laminar flow cooling control model calculates the temperature T1-T2-⊿ T1 that strip steel head needs cooling,
Step 2, strip steel head cooling scheme are arranged: laminar flow cooling control model needs the temperature T1-T2-⊿ T1 of cooling and the speed V of band steel according to strip steel head, converse strip steel head section cooling water yield h1, then determine according to the cooling strategy in laminar flow cooling control model the cooling distribution that laminar cooling water is chewed;
Tail temperature setting in step 3, band steel: when afterbody enters section cooling roller-way in band steel, the finishing temperature that finish to gauge pyrometer records afterbody in band steel is T1, and laminar flow cooling control model calculates afterbody in band steel needs the temperature T1-T2 of cooling;
In step 4, band steel, blade trailing cooling scheme is arranged: laminar flow cooling control model needs the speed V of the temperature T1-T2 of cooling, band steel and time to carry out integral and calculating according to afterbody in band steel, converse afterbody section cooling water yield h2 in band steel, the cooling distribution that laminar cooling water is chewed is determined again according to the cooling strategy in laminar flow cooling control model, in cooling procedure, the water yield carries out dynamic conditioning, realize coiling temperature T2 according to target to control, until the cooling of band steel terminates;
Step 5, self study correction: laminar flow cooling control model can be revised according to the head temperature batching this block steel that pyrometer records or upper block steel, the coiling temperature T2 of afterbody in correction tape steel, correction value Wei ⊿ T2, realize the accurate control of strip steel head temperature, in the present embodiment, described self study correction comprises short-term self study and long-term self study, and described short-term self study is the head temperature for this block band steel, the coiling temperature T2 of afterbody in this block of laminar flow cooling control Modifying model band steel; Described long-term self study is for lower block of band steel in cooling procedure, and laminar flow cooling control model can according to the coiling temperature T2 of afterbody in block band steel under the head temperature correction of upper block band steel.
See Fig. 2, on the basis of former coiling temperature, by negative compensating band steel head temperature, by the oiler temperature control of strip steel head, in OK range, (horizontal line the highest in figure is the finishing temperature T1 that finish to gauge pyrometer records strip steel head, middle horizontal line is coiling temperature T2, minimum horizontal line is strip steel head target control temperature T2+ ⊿ T1, and the distance between centre and level of subsistence is ladder cooling Bu and repays Wen Du ⊿ T1).
See Fig. 3, on the basis of former coiling temperature, by positive compensating band steel head temperature, by the oiler temperature control of strip steel head, in OK range, (horizontal line the highest in figure is the finishing temperature T1 that finish to gauge pyrometer records strip steel head, middle horizontal line is strip steel head target control temperature T2+ ⊿ T1, minimum horizontal line is coiling temperature T2, and the distance between centre and level of subsistence is ladder cooling Bu and repays Wen Du ⊿ T1).
The present invention is applicable to the thin material band steel that belt steel thickness is less than 2.0mm, and concrete steel grade and thickness see table 1:
Table 1 presses steel grade and belt steel thickness setting ladder cooling compensation temperature
Below by way of specific embodiment, elaboration is made to the present invention:
Embodiment one:
Steel grade: SPHC, thickness 1.2mm, coiling temperature 660 DEG C, ladder cooling compensation temperature-10 DEG C, performs by the ladder cooling compensation temperature shown in Fig. 2, strip steel head starts to calculate, 0 ~ 5m temperature presses 650 DEG C of controls, according to target coiling temperature 660 DEG C control after 5m, in process of production, band steel does not occur dig on roller-way, pile steel phenomenon, after band steel rolling there is not the folding and inner ring of steel coil loose winding phenomenon of head in inner ring of steel coil.
Embodiment two:
Steel grade: SPHC, thickness 1.8mm, coiling temperature 640 DEG C, ladder cooling compensation temperature-10 DEG C, performs by the ladder cooling compensation temperature shown in Fig. 2, strip steel head starts to calculate, 0 ~ 1m temperature presses 630 DEG C of controls, according to target coiling temperature 640 DEG C control after 5m, in process of production, band steel does not occur dig on roller-way, pile steel phenomenon, after band steel rolling there is not the folding and inner ring of steel coil loose winding phenomenon of head in inner ring of steel coil.
Embodiment three:
Steel grade: Q215, thickness 1.1mm, coiling temperature 600 DEG C, ladder cooling compensation temperature+50 DEG C, perform by the ladder cooling compensation temperature shown in Fig. 3, strip steel head starts to calculate, and 0 ~ 10m temperature presses 650 DEG C of controls, according to target coiling temperature 600 DEG C control after 10m, in process of production, band steel has and slightly digs on roller-way, does not pile steel phenomenon, and after band steel rolling, the folding and inner ring of steel coil loose winding phenomenon of head does not occur inner ring of steel coil.
Embodiment four:
Steel grade: Q235, thickness 1.5mm, coiling temperature 570 DEG C, ladder cooling compensation temperature+60 DEG C, performs by the ladder cooling compensation temperature shown in Fig. 3, strip steel head starts to calculate, 0 ~ 3m temperature presses 630 DEG C of controls, according to target coiling temperature 570 DEG C control after 3m, in process of production, band steel on roller-way without digging, pile steel phenomenon, after band steel rolling there is not the folding and inner ring of steel coil loose winding phenomenon of head in inner ring of steel coil.
Embodiment five:
Steel grade: Q345, thickness 1.4mm, coiling temperature 660 DEG C, ladder cooling compensation temperature-10 DEG C, performs by the ladder cooling compensation temperature shown in Fig. 2, strip steel head starts to calculate, 0 ~ 2m temperature presses 650 DEG C of controls, according to target coiling temperature 660 DEG C control after 2m, in process of production, band steel on roller-way without digging, pile steel phenomenon, after band steel rolling there is not the folding and inner ring of steel coil loose winding phenomenon of head in inner ring of steel coil.
Embodiment six:
Steel grade: Q460, thickness 2.0mm, coiling temperature 640 DEG C, ladder cooling compensation temperature-10 DEG C, performs by the ladder cooling compensation temperature shown in Fig. 2, strip steel head starts to calculate, 0 ~ 1m temperature presses 630 DEG C of controls, according to target coiling temperature 640 DEG C control after 1m, in process of production, band steel on roller-way without digging, pile steel phenomenon, after band steel rolling there is not the folding and inner ring of steel coil loose winding phenomenon of head in inner ring of steel coil.
Embodiment seven:
Steel grade: SPA-H, thickness 1.6mm, coiling temperature 600 DEG C, ladder cooling compensation temperature+80 DEG C, performs by the ladder cooling compensation temperature shown in Fig. 3, strip steel head starts to calculate, 0 ~ 3m temperature presses 680 DEG C of controls, according to target coiling temperature 600 DEG C control after 3m, in process of production, band steel on roller-way without digging, pile steel phenomenon, after band steel rolling there is not the folding and inner ring of steel coil loose winding phenomenon of head in inner ring of steel coil.
See Fig. 4, described section cooling roller-way is divided into fine setting section and accurate adjustment section, and described fine setting section is presetting section, and described accurate adjustment section is dynamic conditioning section.Because in section cooling, coiling temperature T2 and the strip steel head target control temperature T2+ ⊿ T1 difference of different steel grade and thickness of slab are larger, so the water that runs is chewed and is accounted for ratio that all water chews from 30% ~ 100% not etc. in fine setting section and accurate adjustment section, the water opened when lowering the temperature larger is chewed many, otherwise then few.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
The content be not described in detail in this description belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. staged hot-strip produces a line control method for laminar cooling, it is characterized in that: comprise the steps:
Step one, strip steel head temperature set: laminar flow cooling control model obtains the coiling temperature T2 that should control according to produced steel grade and thickness, calculate ladder cooling Bu simultaneously and repay Wen Du ⊿ T1, obtain strip steel head target control temperature T2+ ⊿ T1; When strip steel head enters section cooling roller-way, the finishing temperature that finish to gauge pyrometer records strip steel head is T1, and laminar flow cooling control model calculates the temperature T1-T2-⊿ T1 that strip steel head needs cooling;
Step 2, strip steel head cooling scheme are arranged: laminar flow cooling control model needs the temperature T1-T2-⊿ T1 of cooling and the speed V of band steel according to strip steel head, converse strip steel head section cooling water yield h1, then determine according to the cooling strategy in laminar flow cooling control model the cooling distribution that laminar cooling water is chewed;
Tail temperature setting in step 3, band steel: when afterbody enters section cooling roller-way in band steel, the finishing temperature that finish to gauge pyrometer records afterbody in band steel is T1, and laminar flow cooling control model calculates afterbody in band steel needs the temperature T1-T2 of cooling;
In step 4, band steel, blade trailing cooling scheme is arranged: laminar flow cooling control model needs the speed V of the temperature T1-T2 of cooling, band steel and time to carry out integral and calculating according to afterbody in band steel, converse afterbody section cooling water yield h2 in band steel, the cooling distribution that laminar cooling water is chewed is determined again according to the cooling strategy in laminar flow cooling control model, in cooling procedure, the water yield carries out dynamic conditioning, realize coiling temperature T2 according to target to control, until the cooling of band steel terminates.
2. staged hot-strip according to claim 1 produces line control method for laminar cooling, it is characterized in that: also comprise step 5, self study correction: laminar flow cooling control model can be revised according to the head temperature batching this block steel that pyrometer records or upper block steel, the coiling temperature T2 of afterbody in correction tape steel, correction value Wei ⊿ T2, realizes the accurate control of strip steel head temperature.
3. staged hot-strip according to claim 2 produces line control method for laminar cooling, it is characterized in that: in described step 5, described self study correction comprises short-term self study and long-term self study, described short-term self study is the head temperature for this block band steel, the coiling temperature T2 of afterbody in this block of laminar flow cooling control Modifying model band steel; Described long-term self study is for lower block of band steel in cooling procedure, and laminar flow cooling control model can according to the coiling temperature T2 of afterbody in block band steel under the head temperature correction of upper block band steel.
4. staged hot-strip according to any one of claim 1 to 3 produces line control method for laminar cooling, it is characterized in that: described strip steel head≤5m.
5. staged hot-strip according to any one of claim 1 to 3 produces line control method for laminar cooling, it is characterized in that: described section cooling roller-way is divided into fine setting section and accurate adjustment section, and described fine setting section is presetting section, and described accurate adjustment section is dynamic conditioning section.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716561A (en) * | 2017-09-15 | 2018-02-23 | 首钢京唐钢铁联合有限责任公司 | Strip Steel Coiling Temperature control method, device, computer-readable storage medium and equipment |
| CN110340156A (en) * | 2019-07-31 | 2019-10-18 | 首钢京唐钢铁联合有限责任公司 | Strip Steel Coiling Temperature control method, device and strip system of processing |
| CN110877055A (en) * | 2019-10-31 | 2020-03-13 | 河钢股份有限公司承德分公司 | Method for improving hot-rolled steel strip tail coiling temperature hit |
| CN111215456A (en) * | 2018-11-23 | 2020-06-02 | 宝山钢铁股份有限公司 | Method for controlling threading stability of strip steel in hot-rolling laminar cooling area |
| CN111451290A (en) * | 2020-03-31 | 2020-07-28 | 鞍钢股份有限公司 | Production method for preventing thin strip steel head from being folded |
| CN112122361A (en) * | 2019-06-25 | 2020-12-25 | 上海梅山钢铁股份有限公司 | Laminar cooling control method for preventing medium-high carbon steel from cracking |
| CN116144888A (en) * | 2023-02-01 | 2023-05-23 | 北京科技大学 | Double-phase steel plate strip homogenizing hanging coil and cooling control quality adjusting method based on transverse and longitudinal temperature difference |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0390206A (en) * | 1989-08-31 | 1991-04-16 | Kobe Steel Ltd | Control method for cooling of hot rolled steel plate |
| JPH03277721A (en) * | 1990-03-28 | 1991-12-09 | Sumitomo Metal Ind Ltd | Method for controlling cooling of hot rolled steel strip |
| CN101745551A (en) * | 2008-12-11 | 2010-06-23 | 宝山钢铁股份有限公司 | Free cooling method of hot rolling band steel |
| CN203170736U (en) * | 2013-03-15 | 2013-09-04 | 重庆钢铁(集团)有限责任公司 | Hot rolling laminar flow cooling temperature control device |
| CN203541110U (en) * | 2013-10-28 | 2014-04-16 | 武汉钢铁(集团)公司 | Sectional type laminar cooling system |
| CN104131238A (en) * | 2014-06-30 | 2014-11-05 | 武汉钢铁(集团)公司 | High-formability high-weatherability ultrathin hot-rolled steel plate and CSP (compact strip production) technology thereof |
-
2014
- 2014-11-07 CN CN201410623816.XA patent/CN104307891B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0390206A (en) * | 1989-08-31 | 1991-04-16 | Kobe Steel Ltd | Control method for cooling of hot rolled steel plate |
| JPH03277721A (en) * | 1990-03-28 | 1991-12-09 | Sumitomo Metal Ind Ltd | Method for controlling cooling of hot rolled steel strip |
| CN101745551A (en) * | 2008-12-11 | 2010-06-23 | 宝山钢铁股份有限公司 | Free cooling method of hot rolling band steel |
| CN203170736U (en) * | 2013-03-15 | 2013-09-04 | 重庆钢铁(集团)有限责任公司 | Hot rolling laminar flow cooling temperature control device |
| CN203541110U (en) * | 2013-10-28 | 2014-04-16 | 武汉钢铁(集团)公司 | Sectional type laminar cooling system |
| CN104131238A (en) * | 2014-06-30 | 2014-11-05 | 武汉钢铁(集团)公司 | High-formability high-weatherability ultrathin hot-rolled steel plate and CSP (compact strip production) technology thereof |
Non-Patent Citations (1)
| Title |
|---|
| 裴红平: "《莱钢1500mm生产线卷取温度控制系统》", 《轧钢》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716561A (en) * | 2017-09-15 | 2018-02-23 | 首钢京唐钢铁联合有限责任公司 | Strip Steel Coiling Temperature control method, device, computer-readable storage medium and equipment |
| CN111215456A (en) * | 2018-11-23 | 2020-06-02 | 宝山钢铁股份有限公司 | Method for controlling threading stability of strip steel in hot-rolling laminar cooling area |
| CN112122361A (en) * | 2019-06-25 | 2020-12-25 | 上海梅山钢铁股份有限公司 | Laminar cooling control method for preventing medium-high carbon steel from cracking |
| CN110340156A (en) * | 2019-07-31 | 2019-10-18 | 首钢京唐钢铁联合有限责任公司 | Strip Steel Coiling Temperature control method, device and strip system of processing |
| CN110340156B (en) * | 2019-07-31 | 2020-11-20 | 首钢京唐钢铁联合有限责任公司 | Strip steel coiling temperature control method and device and strip steel processing system |
| CN110877055A (en) * | 2019-10-31 | 2020-03-13 | 河钢股份有限公司承德分公司 | Method for improving hot-rolled steel strip tail coiling temperature hit |
| CN111451290A (en) * | 2020-03-31 | 2020-07-28 | 鞍钢股份有限公司 | Production method for preventing thin strip steel head from being folded |
| CN116144888A (en) * | 2023-02-01 | 2023-05-23 | 北京科技大学 | Double-phase steel plate strip homogenizing hanging coil and cooling control quality adjusting method based on transverse and longitudinal temperature difference |
| CN116144888B (en) * | 2023-02-01 | 2024-02-20 | 北京科技大学 | Double-phase steel plate strip homogenizing hanging coil and cooling control quality adjusting method based on transverse and longitudinal temperature difference |
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