CN103272847A - Intelligent refrigeration type metal composite rolling roller system - Google Patents
Intelligent refrigeration type metal composite rolling roller system Download PDFInfo
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- CN103272847A CN103272847A CN2013102257951A CN201310225795A CN103272847A CN 103272847 A CN103272847 A CN 103272847A CN 2013102257951 A CN2013102257951 A CN 2013102257951A CN 201310225795 A CN201310225795 A CN 201310225795A CN 103272847 A CN103272847 A CN 103272847A
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Abstract
A cooling system of an intelligent refrigeration type metal composite rolling roller system comprises two groups of rolling roller components in opposite arrangement, a cooling system and an intelligent control system. Each rolling roller component comprises a working roller used for metal rolling and a support roller used for supporting the working roller; the cooling system comprises a refrigerating machine, a cold air conveying pipe and an air discharge component for supplying cold air to each working roller and each support roller; the air discharge component is connected to the refrigerating machine through a cold air conveying pipe; the air discharge component is arranged to have gaps with each working roller and each support roller; and the intelligent control system is in signal connection with the refrigerating machine and/or the air discharge component. Through the structure design, the refrigerating machine generates cold air which is blown towards each working roller and each support roller through the air discharge component; as a cold air cooling way in which the intelligent control system detects temperature and flow of cold air needed by an environment temperature output roller system of the roller system is particularly adopted, the cooling effect on the rolling roller system components can be improved to a great extent.
Description
Technical field
The present invention relates to the cooling system technical field of metal composite Rolling roller system.
Background technology
The rolled piece that when single metal cold working was rolling, the roll of rotation can produce a large amount of frictional heats, pass through then can produce frictional heat and distortion heat.
If can not effectively the heat of rolled piece and roll be taken away or cool off in the cold working operation of rolling, As time goes on the temperature rise meeting of roll and rolled piece raises gradually, and the temperature rise of roll then is the stack of being produced heat by roll and rolled piece;
Namely be: the roll temperature rise is frictional heat and the hot sum of distortion of the frictional heat+rolled piece of roll, and can repeat stack and gathering along with the continuous rotation heat of roll, makes it increase in temperature.
Common single metal cold working is rolling all to be to adopt the fountain cooling and lubricating mode of cooling medium to cool off roll and rolled piece, and the medium of cooling is emulsion or the full oil of content 5%.
Yet the micro oil " dry lubrication " that the cold working composite rolling of two kinds of metals adopts, almost be that " dry lubrication " that carry out under the situation of not having cooling medium fully is rolling, obviously, fully inapplicable composite rolling technological lubrication and the cooling with metal of fountain cooling and lubricating mode, so the rolling type of cooling of metal composite generally adopts the cooling of drying of natural air cooling or blower fan breaker roll.
This bleed type type of cooling can not be cooled off roll and rolled piece in continuous and effective ground, cause the temperature of roll constantly to raise with the passing of composite rolling time, its result can make roll production convexity, then the bad plate shape of the bent distortion of the serious wooden dipper of compound rolled piece production, even the consequence that causes composite rolling and therefore be forced to interrupt, particularly spring and summer, summer, summer and autumn roller system the temperature rise cooling seem particularly important.
In sum, demand is a kind of can to solve the new process for cooling mode that two kinds of lasting temperature rises of roller system in the metal composite operation of rolling cause the hot convexity problem of roll production effectively constantly, becomes the difficult problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
It is cooling system that the technical issues that need to address of the present invention provide a kind of intellectual refrigeration mode metal composite Rolling roller, in order to solve above-mentioned technical problem.
Be in the cooling system at intellectual refrigeration mode metal composite Rolling roller provided by the invention, the roller that comprises the complete cooled air parcel that employing forms in roll line upper and lower, roll gateway is cold air local space, roller system is among the local environment of relative low temperature and forms the exchange area of hot and cold air, by the type of cooling of the regional air themperature of intelligent control system realization cooling control roll system, reaching composite rolling process central roll is the effect that continuous and effective ground is controlled, roller system continues constant temperature, do not produce roll crown of temperature rise.Also include the Rolling roller module, described Rolling roller module includes two groups, two groups of described Rolling roller modules are oppositely arranged, described Rolling roller module comprises be used to carrying out metal rolled working roll and be used for supporting the backing roll of described working roll, also comprise: cooling system, described cooling system comprises refrigeration machine, cold wind carrier pipe and the air-out assembly that is used for described working roll and described backing roll are provided cooling air, described air-out assembly is connected with described refrigeration machine by described cold wind carrier pipe, and described air-out assembly and described working roll and described backing roll gap arrange; Intelligent control system, described intelligent control system is connected with described refrigeration machine and/or described air-out component signals.
Preferably, described air-out assembly includes for the first air-out assembly that described working roll is cooled off with for the second air-out assembly that described backing roll is cooled off; The described first air-out assembly includes two pairs, and two pairs of described first air-out assemblies are relatively arranged on the upper and lower both sides of described working roll and are formed with first cooling zone; The described second air-out assembly includes two pairs, two pairs of described second air-out assemblies are relatively arranged on the upper and lower both sides of described backing roll and are formed with second cooling zone, and the roller that forms a kind of complete cooled air parcel in roll line upper and lower, roll gateway is cold air local space.
Preferably, the present invention also includes the hot blast suction system, described hot blast suction system includes two hot blast suction hoods, and two described hot blast suction hoods are arranged at intervals at the upper end of described Rolling roller assembly, makes roller system be among the local environment of relative low temperature and forms the exchange area of hot and cold air.
The present invention is on the basis of said structure, cooling system and intelligent control system are provided, intelligent control system adopts single-chip microcomputer of the prior art, be stored with control program, can control cooling system according to set or on-the-spot actual state update routine, thereby control it to the cooling of working roll and backing roll.
The air-out assembly that cooling system comprises refrigeration machine, cold wind carrier pipe and is used for working roll and backing roll are provided cooling air, the air-out assembly is connected with refrigeration machine by the cold wind carrier pipe, air-out assembly and working roll and the setting of backing roll gap.So arrange, refrigeration machine produces cold wind, and cold wind blows to working roll and backing roll by the air-out assembly.By this structural design, owing to adopted the cold wind cooling especially, can improve the cooling effect to the Rolling roller assembly dramatically.
Realize the air themperature in cooling control roll system zone by intelligent control system, reaching composite rolling process central roll is the continuous and effective ground control of temperature rise, the permanent roll gap composite rolling effect that roller system continues constant temperature, no roll crown.
Description of drawings
Fig. 1 is that intellectual refrigeration mode metal composite Rolling roller is the structural representation of cooling system in an embodiment of the present invention;
Fig. 2 is along the cutaway view of A-A among Fig. 1;
Fig. 3 is the workflow diagram of cooling system for intellectual refrigeration mode metal composite Rolling roller in an embodiment of the present invention;
Wherein:
1 steel band; 2 copper strips (2 up and down); 3 working rolls (2); 4 copper steel composite band; 5 working roll cooling vents (4); 7 backing rolls (2); 6 working roll cooled regions (4); 8 backing roll cooling vents (4); 9 backing roll cooled regions (4); 10 heat exchange area (2); 11 hot blast suction hoods (2); 12 hot blast suction systems; 13 cooling pipe systems; 14 refrigeration machines; 15 central control systems.
The specific embodiment
Below in conjunction with accompanying drawing invention is done and to be described in further detail:
Please refer to Fig. 1 to Fig. 3, wherein, Fig. 1 is that intellectual refrigeration mode metal composite Rolling roller is the structural representation of cooling system in an embodiment of the present invention; Fig. 2 is along the cutaway view of A-A among Fig. 1; Fig. 3 is the workflow diagram of cooling system for intellectual refrigeration mode metal composite Rolling roller in an embodiment of the present invention.
The invention provides a kind of intellectual refrigeration mode metal composite Rolling roller is cooling system, include the Rolling roller module, the Rolling roller module includes two groups, two groups of Rolling roller modules are oppositely arranged, the Rolling roller module comprises be used to carrying out metal rolled working roll and being used for the backing roll of support works roller, also comprise: cooling system, cooling system comprises refrigeration machine, cold wind carrier pipe and the air-out assembly that is used for working roll and backing roll are provided cooling air, the air-out assembly is connected with refrigeration machine by the cold wind carrier pipe, and air-out assembly and working roll and backing roll gap arrange; Intelligent control system, intelligent control system is connected with refrigeration machine and/or air-out component signals.
The Rolling roller module includes two groups, two groups of Rolling roller modules are oppositely arranged, and one of them is arranged at the top, and another is arranged at the below, the Rolling roller module of upper end and the Rolling roller inter-module of lower end be every setting, and be formed with the rolling gap of passing through for composition metal.The Rolling roller module includes working roll and backing roll, be in the cooling system at whole intellectual refrigeration mode metal composite Rolling roller, working roll and backing roll are enumerated setting on vertical direction, and its erection sequence is: backing roll, working roll, working roll, backing roll.
In order to solve the cooling problem of Rolling roller assembly, the present invention is on the basis of said structure, cooling system and intelligent control system also are provided, intelligent control system adopts single-chip microcomputer of the prior art, be stored with control program, can control cooling system according to set or on-the-spot actual state update routine, thereby control it to the cooling of working roll and backing roll.
The air-out assembly that cooling system comprises refrigeration machine, cold wind carrier pipe and is used for working roll and backing roll are provided cooling air, the air-out assembly is connected with refrigeration machine by the cold wind carrier pipe, air-out assembly and working roll and the setting of backing roll gap.So arrange, refrigeration machine produces cold wind, and cold wind blows to working roll and backing roll by the air-out assembly.By this structural design, owing to the cold wind temperature that has adopted intelligent control system measuring roll based environment temperature outlet roller system to need especially and the cold wind type of cooling of flow, can improve the cooling effect to the Rolling roller module dramatically.
Especially, the present invention can also be provided with temperature monitoring, and the temperature detection data to working roll and backing roll by temperature monitoring provides for intelligent control system provides the control foundation, thereby improve control accuracy of the present invention.
Particularly, the air-out assembly includes for the first air-out assembly that working roll is cooled off with for the second air-out assembly that backing roll is cooled off; The first air-out assembly includes two pairs, and two pairs of first air-out assemblies are relatively arranged on the both sides of working roll and are formed with first cooling zone; The second air-out assembly includes two pairs, and two pairs of second air-out assemblies are relatively arranged on the both sides of backing roll and are formed with second cooling zone, and the roller that forms a kind of complete cooled air parcel in roll line upper and lower, roll gateway is cold air local space.
Gathering for fear of heat, the present invention also includes the hot blast suction system for the hot-air suction, the hot blast suction system includes two hot blast suction hoods, two hot blast suction hoods are arranged at intervals at the upper end of Rolling roller assembly, make the alternate cycles that forms hot and cold air around the roller system, make roller system be among the local environment of relative low temperature and form the exchange area of hot and cold air.
The present invention relates in the composition metal operation of rolling, the cooling of breaker roll roller system, roll constant temperature, roll do not have the new process of hot convexity.
The cooling medium that the present invention adopts is refrigeration wind (cold air), and is the intelligent cold air that the variation of temperature and heat changes with roller, controls temperature and the air quantity size of its refrigeration by intellectuality, realizes that roller is constant temperature, permanent roll gap.
The present invention realizes the air themperature in cooling control roll system zone by intelligent control system, and reaching composite rolling process central roll is the continuous and effective ground control of temperature rise, the permanent roll gap composite rolling effect that roller system continues constant temperature, no roll crown.
The present invention is constant temperature by roller, and permanent roll gap promotes composite rolling product size precision: thickness deviation ± 0.5mm, plate shape 10～30I; The present invention reaches and shortens 2～3 production processes of the technological process of production by two kinds of metal composite products precision improvements; The present invention promotes the surface quality of joint product by shortening the technological process of production; The present invention reaches two kinds of metal composite band high accuracy, short flow process, low-carbon (LC) production technology purpose.
For the roller that effectively solves constantly in this composite rolling process is the hot convexity that temperature rise causes roll to be produced, the invention provides a kind of cooling of intellectual refrigeration mode metal composite Rolling roller system, roll constant temperature, the roll that can realize do not have hot convexity new process.
Intellectual refrigeration mode metal composite Rolling roller provided by the invention is that cooling system comprises:
In the roll line upper and lower of composite rolling mill, 8 orientation of milling train gateway working roll, backing roll are carried out omnibearing refrigeration air cooling;
Forming a kind of roller is cold air local space, allows the roller be the complete cooled air parcel of roller, and roller system is among the local environment of relative low temperature, and forms the exchange area of hot and cold air;
It is the control range of temperature rise that master operating station is set roller, realizes intellectual refrigeration by central control system, the air themperature in cooling control roll system zone;
Thereby reach composite rolling process central roll and be the continuous and effective ground control of temperature rise, reach the effect that roller system continues constant temperature, do not produce roll crown.
Master operating station sets in advance roller based environment temperature range T0+ Δ t0, starts central control system, and it is that the ambient air temperature is monitored constantly that central control system is sent the instruction pair roller;
When monitor temperature reached the lower limit T0 of design temperature, central control system was sent 1 refrigeration instruction and is given refrigeration machine, is 8 cooling vents by cooling pipe system, roller, was that 1 grade of refrigeration wind is carried in the control area to roller;
When monitor temperature reached the higher limit T0+ Δ t0 of design temperature, central control system was sent hold instruction and is given refrigeration machine, be that 8 cooling vents continue to roller by cooling pipe system, roller was that 1 grade of constant refrigeration wind is carried in the control area, and roller system keeps temperature rise constant;
When the roll environment temperature was higher than the higher limit T0+ Δ t0+ Δ t1 of design temperature, central control system was sent 2 refrigeration instructions and is given refrigeration machine, by cooling pipe system, 8 cooling vents of roll, was that 2 grades of refrigeration wind are carried in the control area to roller;
When the roll environment temperature is down to the higher limit T0+ Δ t0 of design temperature, central control system is sent and is strengthened hold instruction to refrigeration machine, continuing to roller by 8 cooling vents such as cooling pipe system, roll is that 2 grades of constant refrigeration wind are carried in the control area, and roller system keeps temperature rise constant.
Refrigeration wind-warm syndrome degree increases progressively and the Δ T that successively decreases by the environment temperature detected value, and single Δ T absolute value is C1 Δ t, circulates successively to successively decrease cryogenic temperature and keep cryogenic temperature;
Cryogenic temperature gradient and flow increment change control and finish and assign instruction by central control system, after refrigeration machine is accepted instruction, are that to continue to roller be the refrigeration wind that carry the control area needs to 8 cooling vents by cooling pipe system, roller;
Roller system is carried out heat exchange because the roller that rolling friction, deformation of rolled wire heat produce continuously is temperature rise by the package action of the wind that freezes endlessly;
Because the heat nature is to the principle that rises, heat is under the effect of the both sides hot blast suction system of roller system, and forming roller is the exchange area of hot and cold air;
Therefore, thermal current is drawn out of roll cooling control area under hot blast suction hood and the acting in conjunction of hot blast suction system.
Master operating station sets in advance (control area 6,9) the ambient temperature range T0+ Δ t0 of roller system, starts central control system 15, and central control system 15 is sent instruction breaker roll ambient air temperature (control area 6,9) and monitored constantly;
When monitor temperature (control area 6,9) when reaching the lower limit T0 of design temperature, central control system 15 is sent 1 refrigeration instruction and is given refrigeration machine 14, by cooling pipe system 13, roll cooling vent 5,8, is that 1 grade of refrigeration wind is carried in control area 6,9 to roller;
When monitor temperature (control area 6,9) reaches the higher limit T0+ Δ t0 of design temperature, central control system 15 is sent hold instruction and is given refrigeration machine 14, continuing to roller by cooling pipe system 13, roll cooling vent 5,8 is that 1 grade of constant refrigeration wind is carried in control area 6,9, and roller system keeps temperature rise constant;
When roll environment temperature (control area 6,9) is higher than the higher limit T0+ Δ t0+ Δ t of design temperature, central control system is sent 2 refrigeration instructions and is given refrigeration machine 14, by cooling pipe system 13, roll cooling vent 5,8, be that 2 grades of refrigeration wind are carried in control area 6,9 to roller;
When roll environment temperature (control area 6,9) is down to the higher limit T0+ Δ t0 of design temperature, central control system is sent and is strengthened hold instruction to refrigeration machine 14, continuing to roller by cooling pipe system 13, roll cooling vent 5,8 is that 2 grades of constant refrigeration wind are carried in control area 6,9, and roller system keeps temperature rise constant.
Refrigeration wind-warm syndrome degree is the Δ T that successively decreases by environment temperature (control area 6,9) increasing progressively of detected value, and single Δ T absolute value is C1 Δ t, circulates successively to successively decrease cryogenic temperature and keep cryogenic temperature;
Principle is followed in cryogenic temperature control:
Cryogenic temperature is the rising of temperature and carry out heat exchange for effective opposing roller, must accomplish that the more high cryogenic temperature of environment measuring temperature is more low, so cryogenic temperature can be expressed with following mathematical expression:
T＝T0-(n-1)ΔT (1)
Or
T＝T0-(n-1)C1Δt (2)
In the formula: T-is the cryogenic temperature in the control procedure, ℃;
T0-is for setting in advance roller based environment temperature range lower limit, ℃;
Δ T-is single cryogenic temperature gradient absolute value, ℃;
Δ t-is that environment temperature detects absolute difference, ℃;
C1-is coefficient of refrigerating performance;
N-is other for the refrigeration wind scale.
The flow of refrigeration wind increases progressively Δ L by the Δ t increment value of environment temperature (control area 6,9) detected value, the suitable refrigeration wind flow coefficient of different choice according to the environment temperature in season, circulation increases progressively the refrigeration wind flow successively, reaches control area 6,9 cryogenic temperature;
Principle is followed in the control of refrigeration air quantity:
The refrigeration air quantity is the heat of the rising of temperature and exchanging for effective opposing roller, must accomplish that the more high refrigeration air quantity of environment measuring temperature is more big, and the air quantity that therefore freezes can be expressed with following mathematical expression:
L＝L0+(n-1)C2ΔL (3)
In the formula: L-is the refrigeration flow in the control procedure, m3/min;
L0-is the refrigerating capacity initial flow, m3/min;
Δ L-is single refrigeration flow increment, m3/min;
C2-refrigeration wind flow coefficient;
N is other for the refrigeration wind scale.
Cryogenic temperature gradient and flow increment change control and finish and assign instruction by central control system 15, and after refrigeration machine 14 was accepted instruction, continuing to roller by cooling pipe system 13, roll cooling vent 5,8 was that the refrigeration wind that needs is carried in control area 6,9;
Roll (working roll 3, backing roll 7) is carried out the exchange of hot and cold air because of roll (working roll 3, the backing roll 7) temperature rise that rolling friction, deformation of rolled wire heat produce continuously by the package action of the wind that freezes endlessly;
Owing under the effect of the both sides hot blast suction system 12 that the natural principle to rising of heat, roller are the air of control area is flowing in roller system, form the exchange area 10 of roll (working roll 3, backing roll 7) hot and cold air;
Therefore, the thermal current after the exchange is drawn out of roller system cooling control area under hot blast suction hood 11 and 12 actings in conjunction of hot blast suction system.
13 effects of refrigeration machine 14 and cooling pipe system are to guarantee to carry enough refrigeration wind, guarantee that with this variation of roller temperature is tending towards 0 when rolling, i.e. working roll 3, backing roll 7 temperature rises are tending towards 0 permanent roller warm-rolling system;
Then finally reach copper strips 2 and steel band 1 and realize that under the effect of rotary roller 3 permanent roll gap is rolling, realize the milled sheet shape control of composite strip 4.
Patent of the present invention is to realize intellectual refrigeration by central control system, reaches the air themperature of cooling control roll zones;
Refrigeration can be because of the environment variation of temperature difference in season, and roller is that the size of the environment temperature difference around temperature and the roller system also can influence refrigeration;
So reach the continuous and effective ground refrigeration of anticipation, must ensure the enough big of refrigerating capacity, the intelligent temperature control element is enough sensitive, could finally realize patent effect of the present invention.
Refrigeration wind-warm syndrome degree is the Δ T that successively decreases by environment temperature (control area 6,9) increasing progressively of detected value, and single Δ T absolute value is C1 Δ t, circulates successively to successively decrease cryogenic temperature and keep cryogenic temperature;
Cryogenic temperature is the rising of temperature and carry out heat exchange for effective opposing roller, must accomplish that the more high cryogenic temperature of environment measuring temperature is more low, meets T=T0-(n-1) Δ T or T=T0-(n-1) C1 Δ t mathematic(al) representation (1) or (2).
The flow of refrigeration wind increases progressively Δ L by the Δ t increment value of environment temperature (control area 6,9) detected value, the suitable refrigeration wind flow coefficient of different choice according to the environment temperature in season, circulation increases progressively the refrigeration wind flow successively, reaches control area 6,9 cryogenic temperature;
The refrigeration air quantity is the heat of the rising of temperature and exchanging for effective opposing roller, must accomplish that the more high refrigeration air quantity of environment measuring temperature is more big, meets L=L0+ (n-1) C2 Δ L mathematic(al) representation (3).
The heat exchange of roller system is to work in coordination with to realize by the height of cryogenic temperature and refrigeration air quantity size, namely be: roller system realizes cold and hot exchange with all temperature rises and heat that composite rolling produces fully by the cryogenic temperature and the air quantity that from roller are 8 cooling vents (5,8);
So the temperature coefficient C1 in the formula can be different with the environment temperature in spring, summer, autumn, winter with flow coefficient C 2, purpose is temperature and the whole cooled temperature of heat and the air quantity exchange that finally reaches roller system.
That refrigeration machine and cooling pipe system provide is that delivery requirements constantly changes, enough big refrigeration wind, and finishes the exchange of hot and cold air, guarantees that with this variation of roller temperature is tending towards 0 when rolling, i.e. working roll, backing roll temperature rise is tending towards 0 permanent roller warm-rolling system;
Realize that permanent roll gap is rolling, finally reach two kinds of band plate shape controls that metal composite is rolling;
The thickness and precision of realizing two kinds of metal composite rolled strips promotes significantly;
Reduce 2～3 of the production processes that two kinds of metals meet rolled strip, the production cycle shortens, and reduces production costs;
Realize the short flow process of two kinds of metal composite band productions, low-carbon (LC) production technology.
Because the minimizing of production process, the surface of composite strip and the also corresponding minimizing that contacts by equipment are increased dramatically its surface quality.
Claims (4)
1. the cooling system of an intellectual refrigeration mode metal composite Rolling roller system, include the Rolling roller module, described Rolling roller module includes two groups, two groups of described Rolling roller modules are oppositely arranged, described Rolling roller module comprises be used to carrying out metal rolled working roll and be used for supporting the backing roll of described working roll, it is characterized in that, also comprise:
Cooling system, the air-out assembly that described cooling system comprises refrigeration machine, cold wind carrier pipe and is used for described working roll and described backing roll are provided cooling air, described air-out assembly is connected with described refrigeration machine by described cold wind carrier pipe, and described air-out assembly and described working roll and described backing roll gap arrange;
Intelligent control system, described intelligent control system is connected with described refrigeration machine and/or described air-out component signals.
2. intellectual refrigeration mode metal composite Rolling roller according to claim 1 is cooling system, it is characterized in that the second air-out assembly that described air-out assembly includes for the first air-out assembly that described working roll is cooled off and is used for described backing roll is cooled off;
The described first air-out assembly includes two, and two described first air-out assemblies are relatively arranged on the both sides of described working roll and are formed with first cooling zone;
The described second air-out assembly includes two, and two described second air-out assemblies are relatively arranged on the both sides of described backing roll and are formed with second cooling zone;
Described first cooling zone and second cooling zone form a kind of complete cooled air parcel in roll line upper and lower, roll gateway roller is cold air local space.
3. intellectual refrigeration mode metal composite Rolling roller according to claim 1 and 2 is cooling system, it is characterized in that, also include the hot blast suction system, described hot blast suction system includes two hot blast suction hoods, and two described hot blast suction hoods are arranged at intervals at the upper end of described Rolling roller module; Described roller system is among the local environment of relative low temperature and forms the exchange area of hot and cold air.
4. be cooling system according to claim 1 or 2 or 3 described intellectual refrigeration mode metal composite Rolling rollers, it is characterized in that, also comprise the air themperature that realizes cooling control roll system zone by intelligent control system, reaching composite rolling process central roll is the continuous and effective ground control of temperature rise, the new process that roller system continues the permanent roll gap composite rolling effect of constant temperature, no roll crown.
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Cited By (7)
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| CN103949576A (en) * | 2014-03-31 | 2014-07-30 | 苏州优金金属成型科技有限公司 | Cooling device for forging and machining gear |
| CN104226689A (en) * | 2014-09-26 | 2014-12-24 | 湖南三泰新材料股份有限公司 | Roller cooling device and cooling method |
| CN104307878A (en) * | 2014-11-10 | 2015-01-28 | 江苏亨特宏业重工有限公司 | Cooling device for hot rolling mill roller for aluminum profile production line |
| CN106001122A (en) * | 2016-06-20 | 2016-10-12 | 王永志 | Steel rolling device |
| CN108144968A (en) * | 2017-12-27 | 2018-06-12 | 南通重矿金属新材料有限公司 | A kind of molding machine aerosol cooling system |
| CN109351787A (en) * | 2018-12-19 | 2019-02-19 | 燕山大学 | A kind of cold-strip liquid nitrogen cold sperm intelligent control device |
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| CN106001122A (en) * | 2016-06-20 | 2016-10-12 | 王永志 | Steel rolling device |
| CN108144968A (en) * | 2017-12-27 | 2018-06-12 | 南通重矿金属新材料有限公司 | A kind of molding machine aerosol cooling system |
| CN108144968B (en) * | 2017-12-27 | 2019-07-23 | 南通重矿金属新材料有限公司 | A kind of molding machine aerosol cooling system |
| CN109351787A (en) * | 2018-12-19 | 2019-02-19 | 燕山大学 | A kind of cold-strip liquid nitrogen cold sperm intelligent control device |
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Application publication date: 20130904 |