CN105728479B - A kind of cooler and water-cooling method for rolling bar - Google Patents
A kind of cooler and water-cooling method for rolling bar Download PDFInfo
- Publication number
- CN105728479B CN105728479B CN201610259399.4A CN201610259399A CN105728479B CN 105728479 B CN105728479 B CN 105728479B CN 201610259399 A CN201610259399 A CN 201610259399A CN 105728479 B CN105728479 B CN 105728479B
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- Prior art keywords
- sleeve
- cooler
- casing
- rolling bar
- bar
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
Abstract
The invention discloses a kind of coolers for rolling bar, including nozzle assembly and sleeve assembly, sleeve assembly includes sleeve, and the inside of sleeve is provided with bell-mouthed internal lining pipe, and internal lining pipe is abutted close to a side end face of nozzle assembly with the end face of nozzle assembly close to one end of nozzle assembly；It is disposed with first sleeve and the second casing in sleeve, the longitudinal section of the internal diameter of first sleeve is bell mouth shape, and the horn mouth of first sleeve is towards the side of internal lining pipe；The longitudinal section of the internal diameter of second casing is bell mouth shape, and the horn mouth of the second casing is towards first sleeve, the bell-mouthed minimum diameter of the second casing for bar rolled piece by minimum-value aperture Φ B；The bell-mouthed minimum diameter Φ C of internal lining pipe be bar rolled piece by 1.3 times of minimum-value aperture Φ B；The size of the bell-mouthed minimum diameter Φ D of first sleeve meets Φ B ＜ Φ D ＜ Φ C.The invention also discloses a kind of water-cooling methods of rolling bar.
Description
Technical field
The present invention relates to Bar Rolling Process field more particularly to a kind of coolers for rolling bar.The present invention is also
It is related to a kind of water-cooling method of the rolling bar using above-mentioned cooler.
Background technology
In modern Bar Wire Product production technology, controlled rolling and controlled cooling technique application are more universal.
It is than one of more typical Controlled Rolling And Controlled Cooling：After the heated stove heat of steel billet, using normal or relatively low open rolling
Temperature rolls stage progress austenite recrystallization area's rolling, to achieve the purpose that fining austenite grains in roughing in；It is rolled in going out
The bar rolled piece of machine row enters water cooling line and cools down, and carrying out soaking in conveying guide groove later (makes surface temperature and core temperature
Degree reaches close), it is then fed into finishing mill line and carries out austenite Unhydrated cement rolling, by austenite Unhydrated cement
Reasonably accumulative deflection achievees the purpose that form Zona transformans in austenite crystal intragranular；Finish rolling enters within the shortest time rolls
Water cooling line afterwards carries out control cooling, the overcooling austenite formed in the process, effect and deformation in deformation induced trans- formation principle
Under the action of band increases ferrite nucleation point on both side, start to ferritic transformation, form the ferritic structure of fine uniform, reach
To the purpose of refined crystalline strengthening.Refined crystalline strengthening technology can reach requirement in steel billet composition is reduced in the case of microalloy element
Physical property, and have more excellent toughness.It is final to realize cost efficiency.
Than more typical Controlled Rolling And Controlled Cooling second is that：Heat Treatment by Rolling Heat technology, i.e. steel billet use normal open rolling temperature
Degree after whole rolling pass, water quenching line after rolling is entered within the shortest time and carries out fast cooling, is formed in product surface
Quenched martensite tissue, during control later is cold, core heat is spread to periphery, is carried out self tempering, is finally obtained surface
It is tempered martensite, tempered sorbite and core form the structural state of thin ferrite and pearlite, using the side of phase transformation strengthening
Formula is come the intensity index that reduces microalloy additive amount, reach requirement.
Three than more typical Controlled Rolling And Controlled Cooling are：Tempered structure is not may occur in which in standard or customer requirement steel,
It is required that normal hot-rolled state delivery.Often consider the size of apparent mass, grain structure to physical property on production line at this time
Influence etc., using appropriate cooling velocity after rolling, come reach removal steel surface oxidation bubble, microalloy additive amount it is appropriate
Reduce and the refinement of grain structure and improve the purpose of toughness.
The above-mentioned various rolling intermediate stages cool down with the bar rolled piece after rolling, and will use the water cooling being made of cooler
Line.The design of cooler as a result, particularly significant, structures shape two key factors of cooling procedure：Efficiency (cooling speed
Degree) and section temperature drop uniformity.
As shown in Figure 1, the heat exchanging process of single group cooler is divided into two parts：Nozzle assembly cooled region 14 and sleeve group
Part cooled region 15.Whether nozzle assembly cooled region 14 is in the center of cooling regardless of bar rolled piece, when high pressure water passes through height
Pressure water inlet 19 along the circumferential weld conical surface spray when, it is believed that at a same speed, angle and flow attack bar rolled piece surface (such as
Shown in Fig. 2), it can be considered that being in the process substantially homogeneous, bar along the heat convection of bar rolled piece circumferencial direction
Temperature drop in 16 whole circumference of rolled piece is almost identical.Sleeve assembly cooled region 15 is generally turbulent pipe as shown in Figure 1,
Bar rolled piece is when across each cooler in water cooling line, not at the center of cooler, but due to self gravitation effect,
Bar rolled piece is attached to cooler inner wall 17 so that bar rolled piece 16 is in the position offset of cooler inner wall 17, and fluid is according to most
Slight drag law flows so that the convection velocity 18 and flow of 16 circumferencial direction of bar rolled piece and cooling water generate non-uniform existing
As (i.e. along bar rolled piece circumferencial direction, there are different flow velocity 18 and flow in different positions, and corresponds to along the circumferential direction each
Point cooling water and the convective heat exchange on bar rolled piece surface can generate the non-uniform situation of temperature drop, as shown in Figure 3),
In conclusion when how to solve bar rolled piece and passing through cooler, the non-uniform problem of temperature drop, it has also become this field skill
Art personnel technical barrier urgently to be resolved hurrily.
Invention content
The object of the present invention is to provide a kind of cooler for rolling bar, so that bar rolled piece passes through cooler
When, temperature drop is uniform.It is a further object to provide a kind of water-cooling methods of rolling bar.
To achieve these goals, the present invention provides a kind of cooler for rolling bar, including nozzle assembly and
Sleeve assembly, the sleeve assembly include sleeve, and one end of the sleeve is fixedly connected with the nozzle assembly, the sleeve
Internal one end close to nozzle assembly is provided with bell-mouthed internal lining pipe, and the internal lining pipe is close to the side of the nozzle assembly
End face is abutted with the end face of the nozzle assembly；It is disposed with first sleeve and the second casing in the sleeve, described first
The longitudinal section of the internal diameter of casing is bell mouth shape, and the horn mouth of the first sleeve is towards the side of the internal lining pipe；It is described
The longitudinal section of the internal diameter of second casing is bell mouth shape, and the horn mouth of second casing is towards the first sleeve, described
The bell-mouthed minimum diameter of second casing for bar rolled piece by minimum-value aperture Φ B；The internal lining pipe it is bell-mouthed most
Small internal diameter Φ C be bar rolled piece by 1.3 times of minimum-value aperture Φ B；The bell-mouthed minimum diameter Φ D of the first sleeve
Size meet Φ B ＜ Φ D ＜ Φ C.
Preferably, the sleeve include enclosed area and with fixing muscle open zone, one end of the enclosed area with it is described
Nozzle assembly is fixedly connected, and the other end of the enclosed area is connect with the fixing muscle；The internal lining pipe is arranged on the closing
The inside in area, the internal lining pipe are abutted away from a side end face of the nozzle assembly with the fixing muscle；And the first sleeve
It is successively set in the fixing muscle with second casing, second casing has cutting portion, and the cutting portion direction
The first sleeve.
Preferably, the quantity of the fixing muscle is 4, and is circumferentially evenly arranged along the sleeve.
Preferably, one end of the fixing muscle and the sleeve connection is T-type structure, the T-type structure and the sleeve
It is welded to connect.
Preferably, the quantity of second casing is multiple, and second casing is along between the axis direction of the sleeve
Every arrangement.
Preferably, the angle K4 of the water outlet of the water outlet of the internal lining pipe and second casing 70 ° to 100 ° it
Between.
Preferably, the size Φ A of the introducing port of the first jet core meet：2 Φ B of Φ B ＜ Φ A ＜.
Preferably, the nozzle assembly includes first jet core, second nozzle core and the nozzle body with cavity, described
First jet core and the second nozzle core coordinate respectively with the nozzle body, and the first jet core is close to the described second spray
The side of mouth core is provided with chamfering, and there are gaps between the second nozzle core and the chamfering.
Preferably, the angle of the chamfering is 45 degree.
Preferably, the first flange is provided on the first jet core, the nozzle body corresponds to first flange and sets
The second flange abutted with first flange is equipped with, first flange and second flange are bolted.
Compared to the content described in background technology, above-mentioned cooler, by the way that cooler different location is designed to not
Same aperture, not only remains the cooling capacity of a part of turbulent pipe, but also bar rolled piece is in the case of cooler interior biasing, edge
Bar rolled piece circumferencial direction will not be close to the inner wall of the first sleeve of cooler, therefore, pass through the bar rolled piece of first sleeve
Convective heat exchange is relatively more uniform, that is, can guarantee that the temperature drop of first sleeve section is relatively more uniform.
The present invention also provides a kind of methods that rolling bar water-cooling method, this method carry out water cooling using cooler, should
The method that the method that cooler carries out water cooling carries out water cooling for the described cooler for rolling bar of any of the above-described scheme.
Since the cooler for rolling bar has above-mentioned technique effect, there is the rolled bar for being used for the cooler of rolling bar
The water-cooling method of system should also have corresponding technique effect.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structure diagram for the cooler for being conventionally used to rod material rolling process；
Fig. 2 is the flow schematic diagram of the nozzle assembly cooling zone for the cooler for being conventionally used to rod material rolling process；
Fig. 3 is the flow schematic diagram of the sleeve assembly cooling zone for the cooler for being conventionally used to rod material rolling process；
Fig. 4 is the structure diagram of the cooler provided in an embodiment of the present invention for rod material rolling process；
Fig. 5 is the A-A sectional views of Fig. 4；
Fig. 6 is the B-B sectional views of Fig. 4；
Fig. 7 is the C-C sectional views of Fig. 4.
In figure 1 above -7：
First jet core 1, nozzle body 2, cavity 3, chamfering 4, internal lining pipe 5, first sleeve 6, the second casing 7；Fixing muscle
8th, second nozzle core 9, sleeve 10, the first flange 11, the second flange 12, introducing port 13, nozzle assembly cooled region 14, sleeve group
Part cooled region 15, bar rolled piece 16, cooler inner wall 17, flow velocity 18, high-pressure water inlet 19, cutting portion 20.
Specific embodiment
The core of the present invention is to provide a kind of cooler for rolling bar, so that bar rolled piece passes through cooler
When, temperature drop is uniform.Another core of the present invention is to provide a kind of water-cooling method of rolling bar.
In order to which those skilled in the art is made to more fully understand technical solution provided by the invention, below in conjunction with attached drawing and
The present invention is described in further detail for specific embodiment.
As shown in figs. 4-7, the cooler provided in an embodiment of the present invention for rolling bar, including nozzle assembly and sleeve
Component, sleeve assembly include sleeve 10, and one end of sleeve 10 is fixedly connected with nozzle assembly, and the inside of sleeve 10 is close to nozzle sets
One end of part is provided with bell-mouthed internal lining pipe 5, and internal lining pipe 5 is close to a side end face of nozzle assembly and the end face of nozzle assembly
It abuts；6 and second casing 7 of first sleeve is disposed in sleeve 10, the longitudinal section of the internal diameter of first sleeve 6 is horn mouth
Shape, and the horn mouth of first sleeve 6 is towards the side of internal lining pipe 5；The longitudinal section of the internal diameter of second casing 7 is bell mouth shape, and
The horn mouth of second casing 7 passes through most towards first sleeve 6, the bell-mouthed minimum diameter of the second casing 7 for bar rolled piece
Small-bore Φ B；The bell-mouthed minimum diameter Φ C of internal lining pipe 5 be bar rolled piece by 1.3 times of minimum-value aperture Φ B；First
The size of the bell-mouthed minimum diameter Φ D of casing 6 meets Φ B ＜ Φ D ＜ Φ C.
It should be noted that above-mentioned bell-mouthed interior gauge structure so that fluid by when can form turbulent flow.Above-mentioned technology
Scheme by the way that cooler different location is designed to different pore size, not only remains the cooling capacity of a part of turbulent pipe, but also
Bar rolled piece, will not be with the inner wall of the first sleeve of cooler along bar rolled piece circumferencial direction in the case of cooler interior biasing
It is close to, it is therefore, relatively more uniform by the bar rolled piece convective heat exchange of first sleeve, that is, it can guarantee the temperature drop of first sleeve section
It is relatively more uniform.
In further technical solution, upper bush 10 includes enclosed area and the open zone with fixing muscle 8, the enclosed area
One end be fixedly connected with the nozzle assembly,；The other end of the enclosed area is connect with the fixing muscle 8.The internal lining pipe 5
The inside of the enclosed area is arranged on, the internal lining pipe 5 is supported away from a side end face of the nozzle assembly with the fixing muscle 8
It connects；And the first sleeve 6 and second casing 7 are successively set in the fixing muscle 8, second casing 7, which has, to be cut
Cut portion 20, and the cutting portion 20 is towards the first sleeve 6.It should be noted that general high voltage water injection is to the second casing 7
When, cooling water has decayed to the convective heat exchange effect of bar rolled piece weaker, it is therefore desirable to as possible by these cooling water drainages
From, to avoid bar rolled piece in this section region generate temperature drop unevenness situation.In said program of the present invention, pass through sleeve assembly
The fixing muscle structure in the open zone at rear portion so that high pressure water jets can be rapidly discharged to after being incident upon rolled piece from the gap of fixing muscle, into
One step ensure that the temperature drop uniformity of bar rolled piece, by the way that the second casing 7 is set cutting portion 20 so that high pressure water jets, which are incident upon, cuts
After cutting portion, can preferably it be discharged to.
In further technical solution, the quantity of above-mentioned fixing muscle 8 is 4, and circumferentially equal along 10 institute of sleeve
Even arrangement.It is appreciated of course that the quantity of above-mentioned fixing muscle 8 can also be 3,2 or other quantity, only this hair
Preferably using 4 in bright embodiment, because using 4 so that the first sleeve and second sleeve are fixed and more consolidated.
In the above-mentioned technical solutions, one end that fixing muscle 8 is connect with sleeve 10 is T-type structure, the T-type structure and sleeve 10
It is welded to connect.It is appreciated that other common connection modes of those skilled in the art can also be used, for example it is bolted
Etc., only preferably using the connection mode of welding in the embodiment of the present invention.
In further technical solution, the quantity of above-mentioned second casing 7 is multiple, and second casing 7 is along sleeve 10
Axis direction arranged for interval.Multi-injection is completed in cooler by above-mentioned multiple second casing, 7 high pressure spray jettings, it is right
Bar rolled piece is adequately cooled down.It is appreciated that the quantity of above-mentioned second casing 7 can also be 1, only this hair
Preferably using multiple in bright embodiment.
Further, the angle K4 of the water outlet of the water outlet of above-mentioned internal lining pipe 5 and second casing 7 at 70 ° extremely
Between 100 °.Therefore, it when high pressure water is oriented to circumferencial direction, is more advantageous to cooling water and is detached from bar rolled piece.
Further, the size Φ A of the introducing port 13 of above-mentioned first jet core 1 are 2 Φ B of Φ B ＜ Φ A ＜, by by Φ A
Be dimensioned to above-mentioned size so that first jet core can normal boot bar rolled piece enter cooler under the premise of to the greatest extent may be used
Energy small (2 times of Φ B of ＜), because reducing Φ A, can reducing the cooling water inflow into first jet core 1, these cooling waters are by preceding
The residual water that the cooler in face is rushed out, to avoid bar rolled piece to the full extent in the inhomogeneous cooling of this position.
Further, said nozzle component includes first jet core 1, second nozzle core 9 and the nozzle housing with cavity 3
Body 2, the first jet core 1 and second nozzle core 9 coordinate respectively with nozzle body 2, and first jet core 1 is close to second nozzle core 9
Side be provided with chamfering 4, there are gaps between the second nozzle core 9 and chamfering 4.Specifically in embodiment, high pressure water leads to
The cavity for crossing nozzle body is ejected out of above-mentioned gap and is contacted with bar rolled piece, it is of course possible to understanding be above-mentioned chamfering with
The structure that second nozzle core forms gap is only a kind of mode preferable in the embodiment of the present invention, can also be and sets guiding gutter
The common spray regimes of those skilled in the art such as injection, the injection of pouring hole.
Further, in the prior art the angle of chamfering 4 be generally 12.5 ° to 20 ° i.e. (K1 be chosen at 25 ° to 40 ° it
Between)；And the angle of the chamfering 4 in the embodiment of the present invention is 45 degree, by 45 degree of chamfering so that cooling water is to bar rolled piece
Impact force is stronger, and it is excessive to avoid chamfering, the phenomenon that cooling water is caused to flow back.Improve the cooled region of nozzle assembly
The turbulent flow effect of cooling water is conducive to improve the cooling capacity in the region, while the increase of cooling water turbulence level, will be more advantageous
It is opposite to weaken bar rolled piece in the uneven influence caused by cooler interior biasing in disengaging bar rolled piece later.
It should be noted that angle K3 shown in Fig. 4 belongs to the normal design (generally 50 ° or so) of turbulent pipe, and angle
Degree K2 mainly considers with angle K3 to be connected in assembling structure.
Further, the first flange 11 is provided on above-mentioned first jet core 1, nozzle body 2 corresponds to the first flange 11 and sets
The second flange 12 abutted with the first flange 11 is equipped with, the first flange 11 and the second flange 12 are bolted.It is appreciated that
Be above-mentioned first flange and the second flange bolt connection structure be only first jet core and nozzle in the embodiment of the present invention
A kind of citing of housing connection mode can also be that those skilled in the art commonly use threaded connection etc., and only the present invention is real
It applies in example preferably by the way of the first flange and the connection of the second flange bolt.
The present invention also provides a kind of methods that rolling bar water-cooling method, this method carry out water cooling using cooler, should
The method that the method that cooler carries out water cooling carries out water cooling for the described cooler for rolling bar of any of the above-described scheme.
Since the cooler for rolling bar has above-mentioned technique effect, there is the rolled bar for being used for the cooler of rolling bar
The water-cooling method of system should also have corresponding technique effect.Details are not described herein again.
The cooler provided by the present invention for rolling bar and water-cooling method are described in detail above.It needs
Illustrating, each embodiment in this specification is described by the way of progressive, the highlights of each of the examples are
Difference from other examples, just to refer each other for identical similar part between each embodiment.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that article or equipment including a series of elements not only include those elements, but also
Including other elements that are not explicitly listed or further include as this article or the intrinsic element of equipment.Do not having
In the case of more limitations, the element that is limited by sentence "including a ...", it is not excluded that in the article for including above-mentioned element
Or also there are other identical elements in equipment.
Specific case used herein is expounded the principle of the present invention and embodiment, and above example is said
The bright method and its core concept for being merely used to help understand the present invention.It should be pointed out that the ordinary skill for the art
For personnel, without departing from the principle of the present invention, can also to the present invention some improvement and modification can also be carried out, these improvement
It is also fallen within the protection scope of the claims of the present invention with modification.
Claims (10)
- A kind of 1. cooler for rolling bar, including nozzle assembly and sleeve assembly, which is characterized in that the sleeve assembly Including sleeve (10), one end of the sleeve (10) is fixedly connected with the nozzle assembly, and the inside of the sleeve (10) is close One end of nozzle assembly is provided with bell-mouthed internal lining pipe (5), and the internal lining pipe (5) is close to a side of the nozzle assembly Face is abutted with the end face of the nozzle assembly；First sleeve (6) and the second casing (7) are disposed in the sleeve (10), the internal diameter of the first sleeve (6) Longitudinal section is bell mouth shape, and the horn mouth of the first sleeve (6) is towards the side of the internal lining pipe (5)；Described second set The longitudinal section of the internal diameter of (7) is managed as bell mouth shape, and the horn mouth of second casing (7) is towards the first sleeve (6), institute State the bell-mouthed minimum diameter of the second casing (7) for bar rolled piece by minimum-value aperture Φ B；The bell-mouthed minimum diameter Φ C of the internal lining pipe (5) be bar rolled piece by 1.3 times of minimum-value aperture Φ B；It is described The size of the bell-mouthed minimum diameter Φ D of first sleeve (6) meets Φ B ＜ Φ D ＜ Φ C；Open zone of the sleeve (10) including enclosed area and with fixing muscle (8), one end of the enclosed area and the nozzle Component is fixedly connected, and the other end of the enclosed area is connect with the fixing muscle (8)；The internal lining pipe (5) is arranged on the envelope The inside of closed zone, the internal lining pipe (5) abut away from a side end face of the nozzle assembly with the fixing muscle (8)；It is and described First sleeve (6) and second casing (7) are successively set in the fixing muscle (8), and second casing (7) has cutting Portion (20), and the cutting portion (20) is towards the first sleeve (6).
- 2. it to be used for the cooler of rolling bar as described in claim 1, which is characterized in that the quantity of the fixing muscle (8) is 4 It is a, and be circumferentially evenly arranged along the sleeve (10).
- 3. it to be used for the cooler of rolling bar as described in claim 1, which is characterized in that the fixing muscle (8) and the set One end of cylinder (10) connection is T-type structure, and the T-type structure is welded to connect with the sleeve (10).
- 4. as claim 1-3 any one of them is used for the cooler of rolling bar, which is characterized in that second casing (7) quantity is multiple, and axis direction arranged for interval of second casing (7) along the sleeve (10).
- 5. it to be used for the cooler of rolling bar as claimed in claim 4, which is characterized in that the water outlet of the internal lining pipe (5) And the angle K4 of the water outlet of second casing (7) is between 70 ° to 100 °.
- 6. it to be used for the cooler of rolling bar as claimed in claim 4, which is characterized in that the nozzle assembly includes the first spray Mouth core (1), second nozzle core (9) and the nozzle body (2) with cavity (3), the first jet core (1) and second spray Mouth core (9) coordinates respectively with the nozzle body (2), and the first jet core (1) is close to the side of the second nozzle core (9) Chamfering (4) is provided with, there are gaps between the second nozzle core (9) and the chamfering (4).
- 7. it to be used for the cooler of rolling bar as claimed in claim 6, which is characterized in that first jet core (1) is led The size Φ A of entrance (13) meet：2 Φ B of Φ B ＜ Φ A ＜.
- 8. it to be used for the cooler of rolling bar as claimed in claim 7, which is characterized in that the angle of the chamfering (4) is 45 Degree.
- 9. it to be used for the cooler of rolling bar as claimed in claim 7, which is characterized in that set on the first jet core (1) The first flange (11) is equipped with, corresponding first flange (11) of the nozzle body (2) is provided with and first flange (11) The second flange (12) abutted, first flange (11) and second flange (12) are bolted.
- 10. a kind of water-cooling method of rolling bar, this method includes the use of the method that cooler carries out water cooling, which is characterized in that The method that the cooler carries out water cooling is the cooler progress water for rolling bar such as claim 1-9 any one of them Cold method.
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| CN201610259399.4A CN105728479B (en) | 2016-04-25 | 2016-04-25 | A kind of cooler and water-cooling method for rolling bar |
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| CN201610259399.4A CN105728479B (en) | 2016-04-25 | 2016-04-25 | A kind of cooler and water-cooling method for rolling bar |
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| CN105728479B true CN105728479B (en) | 2018-06-15 |
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| CN116493408B (en) * | 2023-05-17 | 2023-11-10 | 江苏省镔鑫钢铁集团有限公司 | Equipment and method for middle rolling, slitting and rolling hot rolled ribbed steel bars |
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|---|---|---|---|---|
| JPS59202113A (en) * | 1983-05-04 | 1984-11-15 | Ishikawajima Harima Heavy Ind Co Ltd | Method and device for cooling high temperature steel material |
| CN2510185Y (en) * | 2001-09-10 | 2002-09-11 | 鞍山钢铁学院 | Eccentric sleeve-type fog-cooling apparatus for hot rolled steel |
| CN2721265Y (en) * | 2004-08-24 | 2005-08-31 | 江苏东方冶金机械制造有限公司 | Water cooler for rolling steel |
| CN203678884U (en) * | 2014-01-10 | 2014-07-02 | 杨传志 | Rod and wire water cooling nozzle |
| CN204470299U (en) * | 2015-03-25 | 2015-07-15 | 福建三安钢铁有限公司 | A kind of cooling device increasing high-speed bar mill on-line cooling effect |
| CN204523803U (en) * | 2015-04-24 | 2015-08-05 | 合肥精工导卫配件有限责任公司 | A kind of bar vortex turbulence tubulature type water-cooled nozzle |
| CN205673383U (en) * | 2016-04-25 | 2016-11-09 | 山东钢铁股份有限公司 | A kind of cooler for rolling bar |
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|---|---|
| CN105728479A (en) | 2016-07-06 |
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