CN102189131A - Lower spraying laminar flow cooling device - Google Patents
Lower spraying laminar flow cooling device Download PDFInfo
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- CN102189131A CN102189131A CN2010101297784A CN201010129778A CN102189131A CN 102189131 A CN102189131 A CN 102189131A CN 2010101297784 A CN2010101297784 A CN 2010101297784A CN 201010129778 A CN201010129778 A CN 201010129778A CN 102189131 A CN102189131 A CN 102189131A
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Abstract
The invention discloses a lower spraying laminar flow cooling device. The device comprises a plurality of groups of lower spraying devices, wherein each group of lower spraying device comprises a collecting pipe, two plunger pipes, two plungers and two U-shaped covers; the collecting pipe is fixedly arranged along a direction vertical to the operation direction of strip steel; a plurality of goose neck spray pipes are uniformly distributed on the collecting pipe along the axial direction; the two plunger pipes are fixedly arranged above the two ends of the collecting pipe respectively, pass through the plurality of goose neck spray pipes which are uniformly distributed at the two ends of the collecting pipe respectively, divide the goose neck spray pipes into upper nozzles and lower spray pipes, and are communicated with the upper nozzles and the lower spray pipes of the goose neck spray pipes through a plurality of through holes; the two plungers are arranged in the two plunger pipes respectively; the two U-shaped covers are covered outside the two plungers in a mode that openings are downward; and the plungers are connected with driving devices through the U-shaped covers, so that movement in the axial direction is realized, the through holes are blocked, and cooling water quantity is adjusted.
Description
Technical field
The present invention relates to a kind of cooling facility for laminar flow, relate in particular to a kind of broad-adjustable spraying laminar flow cooling device down that in the hot-rolling laminar cooling, uses.
Background technology
The hot rolling tandem mill production line of iron and steel enterprise all will use cooling facility for laminar flow, and its major function is exactly the band steel with the finish rolling outlet, cools off fast according to the target temperature that batches setting, to guarantee the properties of product of band steel.
With Baosteel 2050 hot rolling mills is example, and its cooling facility for laminar flow has 76 groups of cooling manifolds (correspondence is a group up and down).Wherein preceding 68 groups is main cold section, and the back is a fine cold-leg for 8 groups.Generally be divided into several cooling zones, each cooling zone all has cold section cooling zone serial connection with fine cold-leg of master separately to form, and the master of cooling zone is made of some groups strong cold collector groups and the some groups of cold collector groups of master again for cold section.The cold model of layer calculate required when opening collector valve group, according to main cold section from front to back, fine cold-leg rule is from back to front set.Therefore,, all need open in each setting, therefore be in normally open basically for back 4 groups of main cold section preceding 4 groups and fine cold-leg to the setting temperature drop of coiling temperature according to finishing temperature; All there are data the position of every group of collector (apart from the last frame of finish rolling) in basic automatization control, basic automatization all needs to follow the tracks of for the position of band steel on the laminar flow roller-way in addition.Its cooling control is as follows:
At first, the process machine calculates by the cold model of layer according to finishing temperature and the coiling temperature set, and that determines main cold section and fine cold-leg cooling manifold opens the group number, and under send instructions and water valve controlled to the finish rolling basic automatization.
Secondly, after the band steel goes out the last frame of finish rolling temperature measurer measures the finishing temperature of band steel reality after by finish rolling, again the group number of opening of cooling manifold is regulated accordingly.
At last, after the batching temperature measurer and measure the actual coiling temperature of band steel after layer is cold, dynamically the laminar flow cooling manifold is opened the group number and regulates according to the desired value of setting of batching, with the coiling temperature that guarantees the band steel in setting range.It is 5 degree that the cooling water inflow of each valve group can be controlled belt steel temperature.
Hot Strip shape is the quality problems of users' special concern always, the good and bad use that directly influences product of strip shape quality, especially in recent years along with the fast development of steel and iron industry, the belt steel product application is constantly expanded, and the user also improves day by day to the requirement of its strip shape quality.
Hot rolling line constantly develops, and production kind, specification enlarge gradually, and present product structure in the past based on straight carbon steel, is mainly produced micro alloyed steel and carbon manganese steel with completely different in the past at present.Existing laminar cooling system, continuous expansion and user's improving constantly along with the rolling line rolling specs to the product quality requirement, can not satisfy the needs that the part steel grade is produced, more especially contain the strength steel (as: BS600, BS700, B510L, S45C, SS400 etc.) of alloying element.These strength steel are after process laminar flow cooled region, because existing laminar cooling system exists the hydraulic pressure shakiness, problems such as current skewness cause the inhomogeneous cooling of band steel, thereby cause being with steel a series of strip shape quality problems to occur, in the rolling line production process, find the band steel easily because the C that inhomogeneous cooling causes sticks up, the plate deformationization that causes with the width inhomogeneous cooling, especially the reduction of limit portion temperature produces the internal stress of bringing bilateral unrestrained trend than conference in follow-up cooling procedure, gives the plate shape of band steel, mechanical performance, temperature and phase transformation all can bring very big influence in the uniformity of width.
The laminar flow cooling mainly is by phase transformation, stress and thermal conductivity to the influence of plate shape.At home and abroad relatively effective measures are exactly the edge-masking device, and effect is apparent in view.At present, domestic mainly is the EDGER MASKING edge-masking The Application of Technology of German SMS-DMG, adjusts the shutter of laminar flow cooling upper spray cooling water width by oil cylinder control link mechanism.The SMS company edge-masking The Application of Technology introduced in the construction project of two wires in 2003 of Handan Iron and Steel Co hot rolling CSP production line for example, the precious hot rolling 2250mm in Handan produces the line application of also succeeding.
Mitsubishi Heavy Ind. Ltd.'s disclosed patent on December 17th, 2002 " band cooling device " patent No. JP2002361316A, its scheme is when laminar flow cools off the cooling water of strip edge portion to be collected to improve the temperature of strip edge portion by aqua storage tank, and the cooling water that aqua storage tank is collected is then discharged by special-purpose drainpipe.Obviously, there is one shortcoming in this technology: when producing than ribbon steel, a large amount of cooling waters waste.
Kawasaki, Japan water island factory just carried out about the laminar flow edge-masking improving the research of plate shape as far back as the eighties in 20th century, Kawasaki Steel Corp. applies for a patent " cooling means of sheet metal strip and device " (open day 1987.12.16 of application in China, patent publication No. CN87100594), its cooling facility for laminar flow adopts the laminar flow jet pipe of being made up of the flat board member of a pair of qualification slit, cooling water flows through this slit and forms a cooling water screen, for regulating the passage area in this jet pipe, the flat board member of this laminar flow jet pipe has at least one can be out of shape on perpendicular to the direction of flow of cooling water, have at least a flat board to respond cooling water pressure preferably, cause that passage area changes, thereby regulate the cooling-water duct zone.The method adopts the method to laminar flow cooling manifold edge-masking, strip edge portion temperature is reduced big problem a solution is provided, but also there is weak point in this method, obviously, the shortcoming of this prior art is: when producing than ribbon steel, a large amount of cooling waters waste, and are unfavorable for the saving of the resources of production.
In addition, prior art improves strip edge portion method of temperature, its principle all is to adopt laminar flow cooling manifold limit portion is carried out blocking of certain width, and strip edge portion temperature is reduced big problem provides a solution, but also there is common weak point in this method:
1. waste resource: when producing than ribbon steel, a large amount of cooling waters that are blocked waste, and are unfavorable for the saving of the resources of production, consume the electricity charge, increase cost of water treatment.
2. influence environment: laminar flow cooling shutter brings adverse effect to the cooling water of both sides shunting to motor and laminar flow roller bed bearing seat, though taked deflector, but still to a certain extent deterioration environment that should the place.
3. fault rate height: during strip running deviation, the both sides edge-masking can not be adjusted synchronously, and when strip running deviation was big, the edge-masking of a side just can't be brought into play the effect of blocking, and can not normally use when causing strip running deviation.
4. mechanism blockage: the laminar flow cooler environment is abominable, and the stuck fault of linkage often takes place.
5. precision is not high: the shutter of this linkage is yielding, and it is undesirable often to cause both sides to block precision.
6. pile the steel rapid wear: when heap steel fault took place the laminar flow cooling section, linkage and shutter easily caused distortion or damage.
7. not having spray down blocks: this linkage can't be applied to down the cooling of spray-up stream, does not have spray-up stream radical occlusion device down, and band steel upper and lower surface inhomogeneous cooling is even, also can cause certain strip edge portion shape wave.
For this reason, the inventor has designed a kind of spraying laminar flow cooling device down, as shown in Figure 1, this time spraying laminar flow cooling device 21 fixedly installs by positioning seat 26, this positioning seat 26 is between laminar flow cooling roller bed bearing block, and be fixed on by screw on the base of laminar flow cooling roller bed bearing block, fixedly laminar flow cools off the screw mandrel that is provided with the one two opposite rotation direction of head thread 1 of spray apparatus 21 down, screw mandrel 1 two ends are enclosed within respectively in the bearing of two screw mandrel shaft blocks 10, and screw mandrel shaft block 10 is fixing by spray apparatus 21 under bolt and the laminar flow cooling.One end of screw mandrel 1 is equipped with handwheel 9, and a special-shaped round nut 2 respectively is housed on 1 liang of head thread of screw mandrel, and the threaded engagement on special-shaped round nut 2 and the screw mandrel 1 is along screw mandrel 1 translation.Since screw mandrel 1 left and right sides screw thread be derotation to T type screw thread, so when rotating handwheel 9, handwheel 9 drive screw mandrels 1, the counter motion of two special-shaped round nuts 2 about two sections reverse screw threads on the screw mandrel 1 cause.Two L type shutters 3 are contained on the special-shaped round nut 2, follow special-shaped round nut 2 and move along screw mandrel 1, and horizontally-arranged gooseneck jet pipe 22 is communicated with water inlet pipe 23 by the following spray collector 24 of spray apparatus 21 under the laminar flow cooling.During work, the vertical location-plate of L type shutter 3 is connected by the special-shaped round nut 2 outside screw and screw mandrel 1 diameter, the movable last spout that covers horizontally-arranged gooseneck 22 of the level board of L type shutter 3, thereby the adjusting of the realization water yield.But prove that through actual production this installs still comparatively water wasting, need further to improve.
Summary of the invention
The purpose of this invention is to provide a kind of spraying laminar flow cooling device down, this device can solve the more problem of existing apparatus water consumption, can make the cooling width of laminar cooling water to regulate according to strip width simultaneously; And can be according to the process for cooling requirement of band steel different in width, the corresponding slit laminar flow of setting up corresponding to band channel width lower surface, realize the respective change of laminar flow cooled region on width, thereby regulate the zone of cooling water on channel width direction, overcome in the prior art laminar cooling system strip width direction is existed cooling phenomenon pockety, reduce the temperature drop of strip edge portion, guarantee with plate shape, mechanical performance, temperature and the phase transformation of steel uniformity at width.
According to above-mentioned purpose of the present invention, a kind of spraying laminar flow cooling device is down proposed, comprise spray apparatus under some groups, each group spray apparatus down comprises: a collector, fixedly install along belt steel traffic direction, some gooseneck jet pipes are distributed on each collector along described collector axial direction, described gooseneck jet pipe and collector conducting; It is characterized in that spray apparatus also comprises under each group:
Two plunger tubes, be fixedly set in top, described collector two ends respectively, described two plunger tubes run through the gooseneck jet pipe of correspondence position respectively, described gooseneck jet pipe is divided into top nozzle and following jet pipe two parts, described plunger tube wall is provided with some through holes, with the top nozzle and the following jet pipe conducting of described gooseneck jet pipe;
Two plungers are located at respectively in two plunger tubes, the external diameter of described plunger and the internal diameter of plunger tube coupling;
Drive unit is located at described collector top, drives two plungers respectively and moves along the plunger tube axial direction, blocks described through hole;
Two U type covers cover in respectively above the gooseneck jet pipe of described two plunger tubes and correspondence position thereof, fixedly connected by a plate with the outer end of described plunger in the outer end of described U type cover, fixedly connected with drive unit respectively in the lower end of described two U type covers.
Preferably, described drive unit comprises:
One reverse thread screw mandrel, the parallel described collector top of being located at;
Two special-shaped nuts are threaded with described screw mandrel two ends respectively, and along the screw mandrel axial direction in opposite directions or counter motion, the lower end of described two U type covers is corresponding fixedly connected with two special-shaped nuts respectively;
One drive motors is connected with described reverse thread screw mandrel.
Preferably, described drive unit comprises:
Two screw mandrels, the parallel respectively top, described collector two ends of being located at;
Two feed screw nuts are connected with two wire rod threads respectively, and the lower end of described two U type covers is corresponding fixedly connected with two feed screw nuts respectively;
Two drive motors are connected with two screw mandrels respectively.
Preferably, be provided with a guiding mechanism between described U type cover and the plunger tube, described guiding mechanism comprises:
One guide pad is fixed on the madial wall of described U type cover;
One cylindricality gathering sill is fixed on the outer wall of described plunger tube, and the axial direction of described cylindricality gathering sill is parallel with the axial direction of plunger tube, and described guide pad is located in the described gathering sill, slides along the gathering sill axial direction.
Preferably, the radial section of described gathering sill and guide pad is circle.This guiding mechanism is used for U type cover is play the guiding role, thereby guarantees the stability of whole device transmission process.
Preferably, described screw mandrel centre is provided with at least one screw mandrel bracing or strutting arrangement, and described screw mandrel bracing or strutting arrangement comprises:
One support set is placed in described screw mandrel centre;
One location-plate is fixedlyed connected with described support set, and fixedlys connected with described gooseneck jet pipe.
Preferably, described screw mandrel bracing or strutting arrangement comprises that also one adjusts backing plate, is located between described location-plate and the gooseneck jet pipe that is connected with location-plate.Described adjustment backing plate is used to adjust the position of support set.
Preferably, described screw mandrel bracing or strutting arrangement also comprises a copper sheathing, is located between described support set and the screw mandrel.
Preferably, the lower end of described U type cover connects base by one and realizes and the fixedlying connected of described special-shaped nut.
The present invention is owing to adopted above technical scheme, make it to compare the consumption that has reduced cooling water greatly with existing spraying laminar flow cooling device down, this is than original L type baffle plate because of plunger, except bringing into play the edge-masking effect, can also play the effect of stop valve to current, thereby avoid unnecessary water resource waste; U type cover of the present invention is by the same moved further of actuation plunger; can carry out effective thermal insulation protection to plunger and plunger hole; particularly by the IF steel series of production technology quality-determining, automobile inner and outer plates with steel, knife mold sheet steel; the contour warm rolling of baking hardening BH steel is got steel; all can in cooling procedure, ban use of G roller-way cooling water; therefore open under the less situation at laminar cooling water, U type cover structure can carry out effective thermal insulation protection to following spraying laminar flow cooling device.This device can also be according to the process for cooling requirement of band steel different in width simultaneously, the corresponding slit laminar flow of setting up corresponding to the band channel width, realize the respective change of laminar flow cooled region on width, thereby regulate the zone of cooling water on channel width direction, overcome in the prior art laminar cooling system strip width direction is existed cooling phenomenon pockety, reduce the temperature drop of band steel lower surface limit portion, guarantee with plate shape, mechanical performance, temperature and the phase transformation of steel uniformity at width.
Description of drawings
Fig. 1 is the existing structural representation of spraying laminar flow cooling device down.
Fig. 2 is a kind of structural representation of spraying laminar flow cooling device down of the present invention.
Fig. 3 is the cutaway view at A-A place among Fig. 2.
Fig. 4 is the cutaway view at B-B place among Fig. 2.
Fig. 5 is the annexation schematic diagram of plunger and U type cover in a kind of following spraying laminar flow cooling device of the present invention.
The specific embodiment
To introduce a kind of preferred implementation of the present invention in conjunction with Fig. 2-Fig. 5 in the present embodiment.
Following spraying laminar flow cooling device in the present embodiment comprises spray apparatus under some groups, and each group down spray apparatus comprises as shown in Figures 2 and 3: the collector 8 that fixedly installs along belt steel traffic direction; Some gooseneck jet pipes 2 are distributed on the collector 8 along the collector axial direction, gooseneck jet pipe 2 and collector 8 conductings; Two plunger tubes 31, be fixedly set in top, two ends, collector 8 left and right sides respectively, two plunger tubes 31 run through the some gooseneck jet pipes 2 that are distributed in collector 8 two ends respectively, with gooseneck jet pipe 2 difference top nozzle 21 and following jet pipe 22 two parts, plunger tube 31 is by the top nozzle 21 and following jet pipe 22 conductings of some through holes and gooseneck jet pipe; Two plungers 3 are located at respectively in two plunger tubes 31, the internal diameter of the external diameter of plunger 3 and plunger tube 31 coupling; Screw mandrel 1 is by the bearing 7 parallel tops of being located at collector 8, and screw mandrel 1 two ends are the screw thread that oppositely is provided with; Two special-shaped nuts 11 are threaded with screw mandrel 1 two ends respectively, along screw mandrel 1 axial direction counter motion; The U type cover 4 that two axial directions and plunger 3 axial directions be arranged in parallel; its radial section is the U type; comprise upper plate 41, front side board 43 and back side panel 42; having down of U type cover 4; cover in outside the plunger 3, in also the top nozzle 21 of gooseneck jet pipe 2 being covered in simultaneously, because spray apparatus is very near apart from the band steel down; scorched by high temperate zone steel easily and outside breaking down, so U type cover 4 can provide protective effect for the gooseneck jet pipe.As Fig. 3 and shown in Figure 5, the outer end of U type cover 4 and the outer end of plunger 3 achieve a fixed connection by connecting plate 5 and screw 51.In addition, front side board 43 lower ends of U type cover achieve a fixed connection with special-shaped nut 11 by the connection base 9 that has perforation, and bolt passes perforation is fixed on U type cover 4 on the connection base 9.Back side panel 42 lower ends of U type cover are fixedly connected with cylindrical guide pad 101 by screw, be fixed with cylindrical gathering sill 102 on the outer wall of plunger tube 31, guide pad 101 is equipped with gathering sill 102, realize that guide pad 101 can slide along its axial direction in gathering sill 102, and then realize guide effect U type cover 4.
For the main actuated element to this device---screw mandrel provides better supporting condition, also be provided with screw mandrel bracing or strutting arrangement 6 in the centre of screw mandrel 1.As shown in Figure 4, the screw mandrel bracing or strutting arrangement comprises: a support set 61 is placed in the centre of screw mandrel 1; The bottom of location-plate 62 and support set 61, location-plate 62 with adjust backing plate 63, and base plate 64 arranges successively, is fixed on the gooseneck jet pipe 2 by screw.Copper sheathing 65 is located between support set 61 and the screw mandrel, for screw mandrel provides self-lubricating function.
As shown in Figure 5, header chamber 801 is by jet pipe chamber 802 and plunger cavity 803 conductings, and plunger cavity 803 communicates with nozzle chambers 804 again simultaneously.But during 1 rotation of motor-driven screw mandrel, abnormity nut 11 drives U type cover and does rectilinear motion along the axial direction of screw mandrel 1, and then drive is done rectilinear motion with the plunger 3 that U type cover is fixedlyed connected by connecting plate 5, plunger cavity 803 is blocked, feasible nozzle chambers 804, jet pipe chamber 802 and the header chamber 801 not conductings that are positioned at plunger cavity 803 tops, cooling water just is blocked in the collector 8 and can't flows out from this nozzle by plunger 3 like this.The U type cover that is equal to moved further with plunger 3 plays the thermal insulation protective effect to jet pipe 2 and plunger tube 31, when U type cover moves to plunger tube tail end top, also can play the thermal insulation protective effect to plunger cavity 803.
The course of work of this device is: drive motors drives screw mandrel and rotates, the special-shaped nut that the screw mandrel that rotates drives its two ends along rectilinear direction in opposite directions or counter motion, special-shaped nut drives the U type cover of fixedlying connected with it and does rectilinear motion, simultaneously, because plunger is fixedlyed connected with U type cover, so plunger also slides in plunger tube, its motion is synchronous with U type cover.Along with the slip of plunger in plunger tube, plunger is by the number of through hole on the blocking-up plunger tube, thereby to the holding back of current in the gooseneck jet pipe, and then realize the adjusting of cooling water inflow at width.
Be noted that above enumerate only for specific embodiments of the invention, obviously the invention is not restricted to above embodiment, many similar variations are arranged thereupon.If those skilled in the art all should belong to protection scope of the present invention from all distortion that content disclosed by the invention directly derives or associates.
Claims (9)
1. a following spraying laminar flow cooling device comprises spray apparatus under some groups, and each group spray apparatus down comprises: a collector, fixedly install along belt steel traffic direction, some gooseneck jet pipes are distributed on each collector along described collector axial direction, described gooseneck jet pipe and collector conducting; It is characterized in that spray apparatus also comprises under each group:
Two plunger tubes, be fixedly set in top, described collector two ends respectively, described two plunger tubes run through the gooseneck jet pipe of correspondence position respectively, described gooseneck jet pipe is divided into top nozzle and following jet pipe two parts, described plunger tube wall is provided with some through holes, with the top nozzle and the following jet pipe conducting of described gooseneck jet pipe;
Two plungers are located at respectively in two plunger tubes, the external diameter of described plunger and the internal diameter of plunger tube coupling;
Drive unit is located at described collector top, drives two plungers respectively and moves along the plunger tube axial direction, blocks described through hole;
Two U type covers cover in respectively above the gooseneck jet pipe of described two plunger tubes and correspondence position thereof, fixedly connected by a plate with the outer end of described plunger in the outer end of described U type cover, fixedly connected with drive unit respectively in the lower end of described two U type covers.
2. spraying laminar flow cooling device down as claimed in claim 1 is characterized in that described drive unit comprises:
One reverse thread screw mandrel, the parallel described collector top of being located at;
Two special-shaped nuts are threaded with described screw mandrel two ends respectively, and along the screw mandrel axial direction in opposite directions or counter motion, the lower end of described two U type covers is corresponding fixedly connected with two special-shaped nuts respectively;
One drive motors is connected with described reverse thread screw mandrel.
3. spraying laminar flow cooling device down as claimed in claim 1 is characterized in that described drive unit comprises:
Two screw mandrels, the parallel respectively top, described collector two ends of being located at;
Two feed screw nuts are connected with two wire rod threads respectively, and the lower end of described two U type covers is corresponding fixedly connected with two feed screw nuts respectively;
Two drive motors are connected with two screw mandrels respectively.
4. as claim 2 or 3 described spraying laminar flow cooling devices down, it is characterized in that be provided with a guiding mechanism between described U type cover and the plunger tube, described guiding mechanism comprises:
One guide pad is fixed on the madial wall of described U type cover;
One cylindricality gathering sill, secured in parallel are on the outer wall of described plunger tube, and described guide pad is located in the described gathering sill, slide along the gathering sill axial direction.
5. spraying laminar flow cooling device down as claimed in claim 3 is characterized in that the radial section of described gathering sill and guide pad is circle.
6. spraying laminar flow cooling device down as claimed in claim 4 is characterized in that described screw mandrel centre is provided with at least one screw mandrel bracing or strutting arrangement, and described screw mandrel bracing or strutting arrangement comprises:
One support set is placed in described screw mandrel centre;
One location-plate is fixedlyed connected with described support set, and fixedlys connected with described gooseneck jet pipe.
7. spraying laminar flow cooling device down as claimed in claim 5 is characterized in that, described screw mandrel bracing or strutting arrangement comprises that also one adjusts backing plate, is located between described location-plate and the gooseneck jet pipe.
8. spraying laminar flow cooling device down as claimed in claim 6 is characterized in that described screw mandrel bracing or strutting arrangement also comprises a copper sheathing, is located between described support set and the screw mandrel.
9. down spraying laminar flow cooling device as claimed in claim 1 is characterized in that, the lower end of described U type cover connects base by one and realizes and the fixedlying connected of described special-shaped nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010129778 CN102189131B (en) | 2010-03-19 | 2010-03-19 | Lower spraying laminar flow cooling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010129778 CN102189131B (en) | 2010-03-19 | 2010-03-19 | Lower spraying laminar flow cooling device |
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| CN102189131A true CN102189131A (en) | 2011-09-21 |
| CN102189131B CN102189131B (en) | 2013-07-17 |
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| CN 201010129778 Active CN102189131B (en) | 2010-03-19 | 2010-03-19 | Lower spraying laminar flow cooling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103331313A (en) * | 2013-07-23 | 2013-10-02 | 中冶赛迪工程技术股份有限公司 | Hot-rolled steel plate cooling device and cooling method thereof |
| CN105188975A (en) * | 2013-04-15 | 2015-12-23 | 首要金属科技奥地利有限责任公司 | Cooling device with breadth-dependent cooling action |
| CN111971130A (en) * | 2018-04-13 | 2020-11-20 | Sms集团有限公司 | Cooling device and method for operating the cooling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111971130A (en) * | 2018-04-13 | 2020-11-20 | Sms集团有限公司 | Cooling device and method for operating the cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102189131B (en) | 2013-07-17 |
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