CN104690091B - Adjustable spraying system of integral-rack twenty-roller rolling mill - Google Patents
Adjustable spraying system of integral-rack twenty-roller rolling mill Download PDFInfo
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- CN104690091B CN104690091B CN201510123522.5A CN201510123522A CN104690091B CN 104690091 B CN104690091 B CN 104690091B CN 201510123522 A CN201510123522 A CN 201510123522A CN 104690091 B CN104690091 B CN 104690091B
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- 238000005507 spraying Methods 0.000 title claims abstract description 72
- 238000005096 rolling process Methods 0.000 title claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000001050 lubricating effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 42
- 238000005461 lubrication Methods 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 238000003801 milling Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003739 neck Anatomy 0.000 description 2
- 239000005068 cooling lubricant Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of plate-strip rolling, and particularly relates to an adjustable spraying system of an integral-rack twenty-roller rolling mill. The adjustable spraying system is composed of a spraying frame, a right spraying mechanism and a left spraying mechanism, the right spraying mechanism and the left spraying mechanism are radially symmetric according to the center of a rack of the twenty-roller rolling mill, liquid incoming pipes are arranged on the side faces at two ends of the spraying frame, and the right spraying mechanism comprises a right upper spraying device, a right lower spraying device and a right supporting roller spraying pipe. By the adjustable spraying system, the defect that a tower-type roller system of the integral-rack twenty-roller rolling mill is compact in spatial structure is overcome, angle and distance of spraying nozzles can be properly adjusted according to needs on spraying position of the rolling mill under different roller arranging systems, needs on roller changing space are met through extending and contracting of an adjusting cylinder, all-area coverage of the whole roller milling roller system and the surface of rolled pieces is realized by arranging multiple spraying areas, high-efficiency heat exchange when the rolling mill rolls is realized, and process needs on cooling and lubricating during high-speed stable rolling are met.
Description
Technical field
The invention belongs to plate and strip rolling technology field, and in particular to a kind of integral-rack mill adjustable spraying system
System.
Background technology
In rolling metal plate and tape field, due in the operation of rolling, when rolled piece occurs plastic deformation, to produce substantial amounts of deformation
Heat, the contact friction between rolled piece and roll, roll and roll can also produce huge frictional heat, if without good cooling
Under lubrication circumstances, these harmful heat energy will cause roll and strip temperature to rise rapidly, change roll forming of the roll, intensity and table
Surface hardness is reduced, and not only affects the quality such as plate shape, thick difference and the surface roughness of stocking, and has damage roll, causes broken belt
Possibility.
In addition, good technological lubrication can guarantee that the coefficient of friction for reducing contact in rolling contact surface, so as to reduce rolling
Pressing pressure and rolling power consumption, make rolled piece be easy to extend, and band can be prevented to be bonded on roll, reduce the abrasion of roll, attachment
In the scuffing of the protection stocking of the oil film energy part of strip surface.Therefore, the technological lubrication spray system of strip-mill strip is to rolling
Production is most important.
Existing strip-mill strip carries out spraying cooling frequently with fixed injection beam mechanism to working roll, backing roll and strip
Lubrication, but integral-rack mill adopts pyramidal structure because its roller system arranges, and limited space between roller and roller entirely rolls
Machine compact conformation, heat exchange is very limited, while spraying mechanism is needed for roll change vacating space, therefore overall memorial archway formula two
The technological lubrication spraying mechanism of ten roller mills, needs special design, to meet the function needs of cooling, lubrication, while adapting to
The characteristics of its space structure.
The content of the invention
The purpose of the present invention is the disadvantages mentioned above for overcoming prior art, there is provided a kind of integral-rack mill is adjustable
Technological lubrication spray system, to adapt to the space characteristic of integral-rack mill tower roller system, while realizing mill milling
When efficient heat exchange, the cooling, the process requirements of lubrication when reaching high speed stable rolling.
For this purpose, the invention provides a kind of integral-rack mill adjustable spraying system, by spraying rack, with regard to two
The radially symmetrical right spraying mechanism of ten rolling frames and left spraying mechanism are constituted, and the two ends of the spraying rack are fixed on 20
In rolling frame, the end side surface of spraying rack two is provided with feed tube, and the right spraying mechanism includes that upper right spray equipment, bottom right are sprayed
Device and right backing roll shower；
The upper right spray equipment adjusts oil cylinder by upper right and upper right shower is constituted, and the upper right adjusts the cylinder body of oil cylinder
Afterbody is installed on mill frame, and upper right shower is connected by the piston rod that upper right swing arm adjusts oil cylinder with upper right, right
The piston rod for raising fuel-economizing cylinder is hinged with upper right swing arm, and the angle between upper right swing arm and upper right shower is more than 90 °, the upper right
Shower is connected with feed tube；
The bottom right spray equipment adjusts oil cylinder by bottom right and bottom right shower is constituted, and the bottom right adjusts the cylinder body of oil cylinder
Afterbody is installed in spraying rack its right end face, and bottom right shower is connected by the piston rod that bottom right swing arm adjusts oil cylinder with bottom right,
Bottom right adjusts the piston rod of oil cylinder and is hinged with bottom right swing arm, and the angle between bottom right swing arm and upper right shower is more than 90 °, the right side
Lower shower is connected with feed tube；
The upper right shower and bottom right shower are symmetrically set in the both sides in mill frame central, transverse axis direction, described
The mutually perpendicular first jet of two rows and second nozzle are equipped with upper right shower and bottom right shower；
The right backing roll shower is between the backing roll of upper right side two and by mill frame frame central
On straight line, the right backing roll shower is fixed in mill frame frame.
The cylinder body afterbody of the upper right regulation oil cylinder is hinged and is installed on mill frame.
The cylinder body afterbody of the bottom right regulation oil cylinder is hinged and is installed in spraying rack its right end face.
The spraying rack inside is equipped with and is connected hinge with upper right shower, bottom right shower junction, the upper right pendulum
Arm is rigidly connected with upper right shower by being connected hinge, and the bottom right swing arm is rigidly connected with bottom right shower by hinge.
Spray orifice is offered on the right backing roll shower.
The invention has the beneficial effects as follows：This integral-rack mill adjustable process lubrication spray that the present invention is provided
Pouring system, can meet the spray position adjustment under different roll necks after rolling mill roll abrasion, and to knot when adapting to realize roll change
The requirement of conformational space, with compact conformation, cooling and lubricating efficiency high, advantage safely and reliably.
It is described in further details below in conjunction with accompanying drawing.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Accompanying drawing 2 is the schematic three dimensional views of right side spraying mechanism；
Accompanying drawing 3 is unilateral spraying mechanism composition figure；
Accompanying drawing 4 is spraying rack 1, shower inner flow passage sectional view in unilateral spraying mechanism；
Accompanying drawing 5 is top backing up roll shower sectional view.
In figure：1st, spraying rack；2nd, bottom right adjusts oil cylinder；3rd, bottom right swing arm；4th, bottom right shower；5th, feed tube；6th, upper right
Adjust oil cylinder；7th, upper right swing arm；8th, upper right shower；9th, right backing roll shower；10th, hinge is connected；11st, lower-left adjusts oil
Cylinder；12nd, lower-left swing arm；13rd, lower-left shower；14th, upper left adjusts oil cylinder；15th, upper left swing arm；16th, upper left shower；17th, it is left
Backing roll shower；18th, first jet；19th, second nozzle.
Specific embodiment
Embodiment 1：
A kind of integral-rack mill adjustable spraying system as shown in Figure 1, 2 is present embodiments provided, by spraying
Drench frame 1, constitute with regard to the radially symmetrical right spraying mechanism of mill frame and left spraying mechanism, the two ends of spraying rack 1
Be fixed on mill frame, 1 liang of end side surface of the spraying rack is provided with feed tube 5, right spraying mechanism include upper right spray equipment,
Bottom right spray equipment and right backing roll shower 9.
Wherein, upper right spray equipment adjusts oil cylinder 6 by upper right and upper right shower 8 is constituted, and upper right adjusts the cylinder body of oil cylinder 6
Afterbody is installed on mill frame, and upper right shower 8 is connected by the piston rod that upper right swing arm 7 adjusts oil cylinder 6 with upper right,
Upper right adjusts the piston rod of oil cylinder 6 and is hinged with upper right swing arm 7, and the angle between upper right swing arm 7 and upper right shower 8 is more than 90 °,
The upper right shower 8 is connected with feed tube 5；
As shown in figure 3, bottom right spray equipment adjusts oil cylinder 2 by bottom right and bottom right shower 4 is constituted, the bottom right adjusts oil
The cylinder body afterbody of cylinder 2 is installed in its right end face of spraying rack 1, and bottom right shower 4 adjusts oil cylinder 2 by bottom right swing arm 3 with bottom right
Piston rod connection, bottom right adjust oil cylinder 2 piston rod be hinged with bottom right swing arm 3, between bottom right swing arm 3 and upper right shower 8
Angle be more than 90 °, the bottom right shower 4 is connected with feed tube 5；
Upper right shower 8 and bottom right shower 4 are symmetrically set in the both sides in mill frame central, transverse axis direction, upper right spray
The mutually perpendicular first jet 18 of two rows and second nozzle 19 are equipped with shower pipe 8 and bottom right shower 4, as shown in Figure 4；
Right backing roll shower 9 is between the backing roll of upper right side two and by the straight line of mill frame frame central
On, the right backing roll shower 9 is fixed in mill frame frame, and right backing roll shower 9 is as shown in Figure 5.
Left spraying mechanism is symmetrical with regard to mill with right spraying mechanism in the present invention, its structure and working principle
And process is identical.The two ends of spraying rack 1 are fixed on mill frame, and 1 liang of end side surface of the spraying rack is provided with feed tube 5, should
Feed tube 5 is connected with lubrication liquid-supplying system outside mill.
Left spraying mechanism includes upper left spray equipment, lower-left spray equipment and left backing roll shower 17.Wherein, upper left spray
Shower device adjusts oil cylinder 14 by upper left and upper left shower 16 is constituted, and upper left adjusts the cylinder body afterbody of oil cylinder 14 and is installed on 20 rollers
In mill stand, upper left shower 16 is connected by the piston rod that upper left swing arm 15 adjusts oil cylinder 14 with upper left, and upper left adjusts oil cylinder
14 piston rod is hinged with upper left swing arm 15, and the angle between upper left swing arm 15 and upper left shower 16 is more than 90 °, the upper left spray
Shower pipe 16 is connected with feed tube 5；
Lower-left spray equipment adjusts oil cylinder 11 by lower-left and lower-left shower 13 is constituted, and lower-left adjusts the cylinder body tail of oil cylinder 11
Portion is installed in the left end face of spraying rack 1, and lower-left shower 13 adjusts the piston rod of oil cylinder 11 by lower-left swing arm 12 and lower-left
Connection, lower-left adjusts the piston rod of oil cylinder 11 and is hinged with lower-left swing arm 12, the folder between lower-left swing arm 12 and upper left shower 16
Angle is more than 90 °, and the lower-left shower 13 is connected with feed tube 5；
Upper left shower 16 and lower-left shower 13 are symmetrically set in the both sides in mill frame central, transverse axis direction, upper left
The mutually perpendicular first jet 18 of two rows and second nozzle 19 are equipped with shower 16 and lower-left shower 13；Left backing roll spray
Shower pipe 17 is located on the straight line between the backing roll of upper left side two and by mill frame frame central, left backing roll spray
Pipe 17 is fixed in mill frame frame.
During normal work, integral-rack mill is adjustable spraying mechanism respectively to backing roll, intermediate calender rolls, working roll,
Rolled piece carries out spraying cooling lubrication.Wherein sprayed between the upper right backing roll shower alignment backing roll roller of upper right two, ejection
The down trickling of the CONTACT WITH FRICTION and spray liquid itself that technological lubrication liquid passes through backing roll and the second intermediate calender rolls to backing roll and
Second intermediate calender rolls carry out effective cooling and lubricating；The spray of mutually perpendicular first jet 18 and second is installed on upper right shower 8
Mouth 19, wherein first jet 18 are sprayed to top working roll with rolled piece contact area upper surface, second nozzle 19 pairs upper first
Intermediate calender rolls are sprayed with upper second intermediate calender rolls contact area, and technological lubrication liquid runner is provided with upper right shower 8, and one end is connected
First jet 18 and second nozzle 19, the other end is connected with the feed tube 5 of spraying rack 1；The operation principle and knot of bottom right shower 4
Structure is also provided with first jet 18 and second nozzle 19 as upper right shower 8, thereon, first jet 18 to bottom working roll with
Rolled piece contact area lower surface is sprayed, and 19 pairs of lower first intermediate rolls of second nozzle are carried out with lower second intermediate calender rolls contact area
Technological lubrication liquid runner is provided with spray, bottom right shower 4, the feed tube of two row's nozzles, the other end and spraying rack 1 is connected in one end
5 connections.
When needing to change first or the second intermediate calender rolls, bottom right adjusts oil cylinder 2, upper right and adjusts oil cylinder 6, lower-left regulation oil cylinder
11st, 14 4 regulation cylinder rods of upper left regulation oil cylinder are fully extended, now bottom right shower 4, upper right shower 8, lower-left spray
Pipe 13,16 4 shower bottoms of upper left shower, concede the roll change space of intermediate calender rolls, carry out roller replacing operation.
When rolling mill roll gradually wears out, or each roll neck of roller system of rolling mill using it is different with roller system when, spray on each shower
Mouth changes with the region distance of required spray, bottom right regulation oil cylinder 2, upper right regulation oil cylinder 6, lower-left regulation oil cylinder 11,
Upper left adjusts oil cylinder 14 4 and adjusts that cylinder rods are appropriate as needed to be stretched out or retract, to adjust nozzle location so that cooling
Lubricant effect is more efficient rationally.
Embodiment 2：
On the basis of embodiment 1, the cylinder body afterbody of upper right regulation oil cylinder 6 is hinged and is installed on mill frame, right
The cylinder body afterbody of downward fuel-economizing cylinder 2 is hinged and is installed in its right end face of spraying rack 1, with upper right shower 8, the right side inside spraying rack 1
The lower junction of shower 4 is equipped with connection hinge 10, and upper right swing arm 7 is rigidly connected with upper right shower 8 by being connected hinge 10,
The bottom right swing arm 3 is rigidly connected with bottom right shower 4 by hinge.Spray orifice is offered on right backing roll shower 9.
Respectively it is connected by being hinged in the present embodiment making angle of regulation range bigger, preferably plays the effect of spraying cooling lubrication
Really, spray orifice is offered on right backing roll shower 9 can be increased spray area and spray evenly.
In sum, the invention has the beneficial effects as follows, overcome integral-rack mill tower roller system space knot
The compact difficult point of structure, can be carried out according to the angular distance to spray spout that needs of the different spray positions with roller system of milling train
Appropriate adjustment, while the flexible demand for meeting roll change space by adjusting cylinder, by arranging multiple spray regions to whole
Roller system of rolling mill and rolled piece surface carry out all region covering, realize efficient heat exchange during mill milling, reach high speed stable rolling
When cooling, lubrication process requirements.The invention has a compact conformation, cooling and lubricating efficiency high, advantage safely and reliably.
The part that the present embodiment is not specifically described belongs to the common knowledge and known technology of the art, herein not
Another one describes in detail.
Exemplified as above is only the illustration to the present invention, does not constitute the restriction to protection scope of the present invention, all
It is that design same or analogous with the present invention is belonged within protection scope of the present invention.
Claims (1)
1. integral-rack mill adjustable spraying system, it is characterised in that：By spraying rack（1）, with regard to mill
The radially symmetrical right spraying mechanism of frame and left spraying mechanism are constituted, the spraying rack（1）Two ends be fixed on 20 rollings
In frame, the spraying rack（1）Two end side surfaces are provided with feed tube（5）, the right spraying mechanism include upper right spray equipment, bottom right spray
Shower device and right backing roll shower（9）；
The upper right spray equipment adjusts oil cylinder by upper right（6）With upper right shower（8）Composition, the upper right adjusts oil cylinder（6）
Cylinder body afterbody be installed on mill frame, upper right shower（8）By upper right swing arm（7）Oil cylinder is adjusted with upper right（6）
Piston rod connection, upper right adjust oil cylinder（6）Piston rod and upper right swing arm（7）It is hinged, upper right swing arm（7）With upper right shower
（8）Between angle be more than 90 °, the upper right shower（8）With feed tube（5）Connection；
The bottom right spray equipment adjusts oil cylinder by bottom right（2）With bottom right shower（4）Composition, the bottom right adjusts oil cylinder（2）
Cylinder body afterbody be installed on spraying rack（1）In its right end face, bottom right shower（4）By bottom right swing arm（3）Oil is adjusted with bottom right
Cylinder（2）Piston rod connection, bottom right adjust oil cylinder（2）Piston rod and bottom right swing arm（3）It is hinged, bottom right swing arm（3）With upper right
Shower（8）Between angle be more than 90 °, the bottom right shower（4）With feed tube（5）Connection；
The upper right shower（8）With bottom right shower（4）It is symmetrically set in the both sides in mill frame central, transverse axis direction, institute
State upper right shower（8）With bottom right shower（4）On be equipped with the mutually perpendicular first jet of two rows（18）And second nozzle
（19）；
The right backing roll shower（9）Between the backing roll of upper right side two and by the straight of mill frame frame central
On line, the right backing roll shower（9）It is fixed in mill frame frame；
The upper right adjusts oil cylinder（6）Cylinder body afterbody be hinged and be installed on mill frame, the bottom right adjusts oil cylinder（2）
Cylinder body afterbody be hinged and be installed on spraying rack（1）In its right end face；
The spraying rack（1）Internal and upper right shower（8）, bottom right shower（4）Junction is equipped with connection hinge（10）, institute
State upper right swing arm（7）With upper right shower（8）By connecting hinge（10）It is rigidly connected, the bottom right swing arm（3）With bottom right spray
Shower pipe（4）It is rigidly connected by hinge；The right backing roll shower（9）On offer spray orifice；
During normal work, integral-rack mill is adjustable spraying mechanism is respectively to backing roll, intermediate calender rolls, working roll, rolled piece
Carry out spraying cooling lubrication；Wherein sprayed between the upper right backing roll shower alignment backing roll roller of upper right two, the technique of ejection
Lubricating fluid is by the down trickling of backing roll and the CONTACT WITH FRICTION and spray liquid itself of the second intermediate calender rolls to backing roll and second
Intermediate calender rolls carry out effective cooling and lubricating；Mutually perpendicular first jet and second nozzle are installed on upper right shower, wherein
First jet is sprayed to top working roll with rolled piece contact area upper surface, and second nozzle is to upper first intermediate roll and upper second
Intermediate calender rolls contact area is sprayed, and technological lubrication liquid runner is provided with upper right shower, and first jet and second is connected in one end
Nozzle, the other end is connected with the feed tube of spraying rack；The principles and structure of bottom right shower as upper right shower, its
On first jet and second nozzle are also installed, first jet is sprayed to bottom working roll with rolled piece contact area lower surface,
Second nozzle is sprayed to lower first intermediate roll with lower second intermediate calender rolls contact area, and in the shower of bottom right technological lubrication is provided with
Two row's nozzles are connected in liquid runner, one end, and the other end is connected with the feed tube of spraying rack；
When needing to change first or the second intermediate calender rolls, bottom right adjusts oil cylinder, upper right and adjusts oil cylinder, lower-left regulation oil cylinder, upper left
Adjust four regulation cylinder rods of oil cylinder fully extended, now bottom right shower, upper right shower, lower-left shower, upper left spray
Four shower bottoms of pipe, concede the roll change space of intermediate calender rolls, carry out roller replacing operation；
When rolling mill roll gradually wears out, or each roll neck of roller system of rolling mill using it is different with roller system when, each shower top nozzle with
The region distance of required spray changes, and bottom right adjusts oil cylinder, upper right and adjusts oil cylinder, lower-left regulation oil cylinder, upper left regulation
Oil cylinder four adjusts that cylinder rods are appropriate as needed to be stretched out or retract, to adjust nozzle location so that cooling and lubricating effect is more
It is efficient and rational.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510123522.5A CN104690091B (en) | 2015-03-20 | 2015-03-20 | Adjustable spraying system of integral-rack twenty-roller rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510123522.5A CN104690091B (en) | 2015-03-20 | 2015-03-20 | Adjustable spraying system of integral-rack twenty-roller rolling mill |
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| Publication Number | Publication Date |
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| CN104690091A CN104690091A (en) | 2015-06-10 |
| CN104690091B true CN104690091B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510123522.5A Active CN104690091B (en) | 2015-03-20 | 2015-03-20 | Adjustable spraying system of integral-rack twenty-roller rolling mill |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102075193B1 (en) * | 2016-12-12 | 2020-02-07 | 주식회사 포스코 | Apparatus and method for rolling |
| CN108097723B (en) * | 2017-12-15 | 2024-03-19 | 无锡华精新材股份有限公司 | Distributed cooling device of 20-roll mill for rolling oriented silicon steel and use method |
| CN108114985A (en) * | 2017-12-15 | 2018-06-05 | 无锡华精新材股份有限公司 | A kind of 20 roller mill cooling devices and high name oriented silicon steel preparation method |
| CN109622617B (en) * | 2018-12-07 | 2020-06-16 | 温州曼昔维服饰有限公司 | Rolling roller assembly |
| CN109622616B (en) * | 2018-12-07 | 2020-06-12 | 长乐巧通工业设计有限公司 | Rolling equipment |
| CN109622618B (en) * | 2018-12-07 | 2020-07-24 | 廖远杰 | Thin foil rolling equipment |
| CN109929979B (en) * | 2019-04-12 | 2020-07-14 | 燕山大学 | Quenching spray cooling adjusting device and using method |
| CN111215450A (en) * | 2020-03-17 | 2020-06-02 | 浙江传播者金属装饰材料有限公司 | Large-opening type integral frame multi-roller rolling mill |
| CN114918251A (en) * | 2022-04-29 | 2022-08-19 | 中冶南方工程技术有限公司 | Spray beam and maintenance method thereof, twenty-high roll mill and working method thereof |
| CN115569991A (en) * | 2022-09-08 | 2023-01-06 | 一重集团大连工程技术有限公司 | Spray beam mechanism, rolling mill cooling system and twenty-high rolling mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2774201B2 (en) * | 1990-12-26 | 1998-07-09 | 川崎製鉄株式会社 | Work roll cooling method for cold rolling mill |
| US5212975A (en) * | 1991-05-13 | 1993-05-25 | International Rolling Mill Consultants, Inc. | Method and apparatus for cooling rolling mill rolls and flat rolled products |
| JP2004167524A (en) * | 2002-11-19 | 2004-06-17 | Nippon Steel Corp | Liquid removing device for temper mill in combined equipment of continuous annealing and hot-dip plating |
| CN101433912A (en) * | 2007-11-15 | 2009-05-20 | 北京中钢贸科技发展有限公司 | High-rigidity roll system structure of twenty-high roll mill |
| CN201676883U (en) * | 2010-04-28 | 2010-12-22 | 富威科技（吴江）有限公司 | All-oil lubricating four-roll finishing mill with oil removing system |
| EP2676744A1 (en) * | 2012-06-22 | 2013-12-25 | Siemens VAI Metals Technologies GmbH | Device for sprinkling a rolling plant and method for extracting/inserting said system from/in said rolling cage |
| CN204564762U (en) * | 2015-03-20 | 2015-08-19 | 中国重型机械研究院股份公司 | Integral-rack mill adjustable spraying system |
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2015
- 2015-03-20 CN CN201510123522.5A patent/CN104690091B/en active Active
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| CN104690091A (en) | 2015-06-10 |
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Effective date of registration: 20231023 Address after: 710018 Area D, No. 3699 Shanglin Road, Caotan Ecological Industrial Park, Economic Development Zone, Xi'an City, Shaanxi Province Patentee after: Xi'an Heavy Technology Co.,Ltd. Address before: 710032 Dongyuan Road 209, Weiyang District, Xi'an City, Shaanxi Province Patentee before: CHINA NATIONAL HEAVY MACHINERY RESEARCH INSTITUTE Co.,Ltd. |