CN106424132A - Prestress universal rolling mill for H structural steel production - Google Patents
Prestress universal rolling mill for H structural steel production Download PDFInfo
- Publication number
- CN106424132A CN106424132A CN201610968820.9A CN201610968820A CN106424132A CN 106424132 A CN106424132 A CN 106424132A CN 201610968820 A CN201610968820 A CN 201610968820A CN 106424132 A CN106424132 A CN 106424132A
- Authority
- CN
- China
- Prior art keywords
- assembling
- roller
- steel production
- roll
- hydraulic cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/088—H- or I-sections
Abstract
The invention discloses a prestress universal rolling mill for H structural steel production. Pin plates, hydraulic cylinders, an upper roller assembly, a vertical roller assembly, a lower roller assembly and a base are sequentially connected through pull rods in a penetrating manner from top to bottom. Limiting plates are fixed to the lower ends of the pull rods. The limiting plates eject the lower end of the lower roller assembly, and a vertical roller is matched with an upper horizontal roller and a lower horizontal roller to roll the H structural steel. According to the prestress universal rolling mill, the machining and manufacturing cost is low; the equipment cost can be reduced, rigidity is high, the bearing capability is high, a roller gap is manually adjusted through manual work, and complex auxiliary control systems, hydraulic systems and the like are not needed; auxiliary investment is reduced, and the prestress universal rolling mill is suitable for small-scale, small-specification and various-kind structural steel production without continuous operation; and rollers of the rolling mill are automatically centered, and hole patterns are stable.
Description
Technical field
The invention belongs to milling train field, especially relate to a kind of prestressing force universal mill for H profile steel production.
Background technology
The production of H profile steel needs to use universal mill.At present, what steel industry adopted has short stress universal mill, connection
Board-like high rigidity universal mill, prestressing force eccentric sleeve type universal mill, CCS close-coupled universal mill etc..There is knot in these milling trains
The feature that structure is complicated, weight of equipment is big, thus cause that investment is big, enter the high feature of gate threshold.So extensive type in being applied to
The large-scale production of steel.
And have small-scale production small dimension alloy shaped steel in the special alloy such as steel alloy, titanium alloy, high temperature alloy field
Demand, these products be more difficult to deformation, required precision higher.But yield is little, specification is little.And it is also various different
Burning optimization on line technological requirement.
So common universal mill production line is typically unwilling to contract the processing of these shaped steel, some also cannot meet this
The processing of class product.
Content of the invention
In view of this, it is contemplated that proposing a kind of prestressing force universal mill for H profile steel production, can solve above-mentioned
Problem.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：
A kind of prestressing force universal mill for H profile steel production, including base, hydraulic cylinder assembling, upper roller assembling, lower roll dress
Join and edger roll assembling；
Described hydraulic cylinder assembling includes hydraulic cylinder and pull bar, and pull bar is fixed through hydraulic cylinder upper and lower ends, pull bar top
There is pin plate, pin plate is located above hydraulic cylinder, pin plate, hydraulic cylinder, upper roller assembling, edger roll assembling, lower roll assembling and base are from upper
Under pass sequentially through pull bar and run through connection, the lower end of pull bar is fixed with limiting plate, and limiting plate holds out against the lower end of lower roll assembling；
Described upper roller assembling includes top chock and upper horizontal roller, and upper horizontal roller is installed on top chock, described lower roll
Assembling includes step and lower horizontal roller, and lower horizontal roller is installed on step, and upper horizontal roller and lower horizontal roller are vertical
On direction relatively, form highly constant roll gap between upper horizontal roller and lower horizontal roller；
Described edger roll assembling includes edger roll and bracing frame, and edger roll is provided with two, is installed in bracing frame, bracing frame closely pastes
Together between top chock and step, edger roll matches and H profile steel is rolled with upper horizontal roller, lower horizontal roller.
Further, support frame as described above includes upper arm-tie, lower pulling plate and two vertical roller side crossbeams, and vertical roller side crossbeam is located at pull-up
Between plate and lower pulling plate, and connection is run through by pull bar.
Further, described vertical roller side crossbeam is U-shape structure, the U-shaped mouth of two vertical roller side crossbeams relatively, upper arm-tie and drop-down
Plate is respectively provided with 2, is connected between two vertical roller side crossbeams, forms closed loop configuration.
Further, described hydraulic cylinder assembling is provided with four.
Further, described lower pulling plate is bolted to connection in base.
Further, it is provided with equal pressure pad between described hydraulic cylinder and top chock.
Further, be detachably provided with some roll gap regulation pads between described top chock and upper arm-tie, step and under
Detachably it is provided with some roll gap regulation pads between arm-tie.
Further, described base is hollow structure, and step is in the hollow structure of base.
Further, the roll gap size of described edger roll manually screwdown gear adjustment.
Further, described hand screwdown gear is Wedge mechanism, and is provided with pad between Wedge mechanism and edger roll.
With respect to prior art, the prestressing force universal mill for H profile steel production of the present invention has following advantage：
1. the structure of component part is simple, fabricates low cost；
2. weight of equipment is light, it is possible to decrease cost of equipment, factory building expense and vehicle cost；
3. rigidity height, large carrying capacity, adopts prestressed draw-bar structure to lock, prestressing force scope between horizontal roll shaft bearing
Inside there is no elastic deformation, using closing locking cylinder oil inlet and outlet, bear roll-force using the incompressible characteristic of liquid in hydraulic cylinder,
Do not need high-pressure hydraulic and bearing capacity is very big；
4. using manually adjusting roll gap it is not necessary to the supplementary controlled system of complexity, hydraulic system etc..Reduce auxiliary to throw
Money is not it is adaptable to need the small-scale of continuous operations, small dimension, the production of multi items shaped steel.
5. rolling mill roll automatic centering, pass is stable.
Brief description
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the B-B face sectional view of Fig. 2；
Fig. 2 is the A-A face sectional view of Fig. 1；
Fig. 3 is the position relationship top view of edger roll assembling, vertical roller side crossbeam and upper arm-tie in Fig. 2；
Fig. 4 is the structural representation of vertical roller side crossbeam in Fig. 3；
Description of reference numerals：
1- pull bar；2- pin plate；3- hydraulic cylinder；The equal pressure pad of 4-；5- top chock；6- roll gap regulation pad；7- upper arm-tie；8- stands
Roller side crossbeam；9- lower pulling plate；10- step；11- base；The upper horizontal roller of 12-；Horizontal roller under 13-；14- limiting plate；15- stands
Roller assembles；16- hand screwdown gear.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combine.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or hint phase
To importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can
To express or to implicitly include one or more this feature.In describing the invention, unless otherwise stated, " multiple "
It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in figures 1-4, a kind of prestressing force universal mill for H profile steel production, including base 11, hydraulic cylinder assembling,
Upper roller assembling, lower roll assembling and edger roll assembling 15；Described hydraulic cylinder assembling includes hydraulic cylinder 3 and pull bar 1, and pull bar 1 is through liquid
Cylinder pressure 3 upper and lower ends, pull bar 1 top is fixed with pin plate 2, and pin plate 2 is located above hydraulic cylinder 3, is easy to dismount.Pin plate 2, hydraulic cylinder
3rd, upper roller assembling, edger roll assembling 15, lower roll assembling and base 11 pass sequentially through pull bar 1 from top to bottom and run through connection, under pull bar 1
End is fixed with limiting plate 14, and limiting plate 14 holds out against the lower end of lower roll assembling；Described upper roller assembling includes top chock 5 and upper level
Roller 12, upper horizontal roller 12 is installed on top chock 5, and described lower roll assembling includes step 10 and lower horizontal roller 13, lower water
Plain-barreled roll 13 is installed on step 10, and upper horizontal roller 12 is relative with lower horizontal roller 13 in the vertical direction, upper horizontal roller 12 He
Form highly constant roll gap between lower horizontal roller 13.
Described edger roll assembling 15 includes edger roll and bracing frame, and edger roll is provided with two, is installed in bracing frame, bracing frame is tight
Fit between top chock 5 and step 10, edger roll is matched with upper horizontal roller 12, lower horizontal roller 13 and H profile steel is carried out
Rolling.
Support frame as described above includes upper arm-tie 7, lower pulling plate 9 and two vertical roller side crossbeams 8, and vertical roller side crossbeam 8 is located at upper arm-tie 7
And lower pulling plate 9 between, and connection is run through by pull bar 1.
Described vertical roller side crossbeam 8 is U-shape structure, the U-shaped mouth of two vertical roller side crossbeams 8 relatively, upper arm-tie 7 and lower pulling plate 9
It is respectively provided with 2, is connected between two vertical roller side crossbeams 8, form closed loop configuration.With pull bar 1 for hinge by vertical roller side crossbeam 8,
Upper arm-tie 7, lower pulling plate 9 are hinged to the ring of a closing, in order to bear edge rolling power.
Described hydraulic cylinder assembling is provided with four.
Described lower pulling plate 9 is bolted to connection in base 11.
It is provided with equal pressure pad 4 between described hydraulic cylinder 3 and top chock 5.
Detachably it is provided with some roll gap regulation pads 6, step 10 and drop-down between described top chock 5 and upper arm-tie 7
Detachably it is provided with some roll gap regulation pads 6 between plate 9.The big I of roll gap is by manually adjusting upper and lower roll gap regulation pad 6
Number is adjusting.
Described base 11 is hollow structure, and step 10 is in the hollow structure of base 11.
Manually screwdown gear 16 adjusts the roll gap size of described edger roll.
Described hand screwdown gear 16 is Wedge mechanism, and is provided with pad between Wedge mechanism and edger roll.
Hydraulic cylinder 3 has upper and lower two oil pockets, and epicoele oil-feed is to unclamp, for the dismounting of milling train；Cavity of resorption oil-feed is tension, uses
In the rolling operating mode of milling train, during tension, apply certain operating pressure, so that pull bar 1 is pre-stretched, the rigidity of milling train can be improved.Rolling
When, the oil inlet and outlet of closing hydraulic cylinder 3.Bear roll-force using the Incoercibility of hydraulic oil, large carrying capacity, without
High-pressure hydraulic.
Edger roll assembling 15 is arranged in the U-shaped mouth of vertical roller side crossbeam 8, and roll centre is overlapped with face in vertical roller side crossbeam 8, protects
Card edger roll center and horizontal roller pass center superposition.
Wherein in Figure of description, Fig. 1 is the B-B direction sectional view of Fig. 2；Fig. 2 is the A-A of Fig. 1 to sectional view.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of prestressing force universal mill for H profile steel production it is characterised in that：Including base (11), hydraulic cylinder assembling, on
Roller assembling, lower roll assembling and edger roll assembling (15)；
Described hydraulic cylinder assembling includes hydraulic cylinder (3) and pull bar (1), and pull bar (1) is through hydraulic cylinder (3) upper and lower ends, pull bar
(1) top is fixed with pin plate (2), and pin plate (2) is located above hydraulic cylinder (3), pin plate (2), hydraulic cylinder (3), upper roller assembling, edger roll
Assembling (15), lower roll assembling and base (11) pass sequentially through pull bar (1) from top to bottom and run through connection, and the lower end of pull bar (1) is fixed
Limited location plate (14), limiting plate (14) holds out against the lower end of lower roll assembling；
Described upper roller assembling includes top chock (5) and upper horizontal roller (12), and upper horizontal roller (12) is installed on top chock (5)
On, described lower roll assembling includes step (10) and lower horizontal roller (13), and lower horizontal roller (13) is installed on step (10)
On, upper horizontal roller (12) is relative with lower horizontal roller (13) in the vertical direction, shape between upper horizontal roller (12) and lower horizontal roller (13)
Become highly constant roll gap；
Described edger roll assembling (15) includes edger roll and bracing frame, and edger roll is provided with two, is installed in bracing frame, bracing frame closely pastes
Together between top chock (5) and step (10), edger roll is matched to H type with upper horizontal roller (12), lower horizontal roller (13)
Steel is rolled.
2. the prestressing force universal mill for H profile steel production according to claim 1 it is characterised in that：Support frame as described above
Including upper arm-tie (7), lower pulling plate (9) and two vertical roller side crossbeams (8), vertical roller side crossbeam (8) is located at upper arm-tie (7) and lower pulling plate
(9) between, and connection is run through by pull bar (1).
3. the prestressing force universal mill for H profile steel production according to claim 2 it is characterised in that：Described vertical roller side
Crossbeam (8) is U-shape structure, and relatively, upper arm-tie (7) and lower pulling plate (9) are respectively provided with 2 to the U-shaped mouth of two vertical roller side crossbeams (8),
It is connected between two vertical roller side crossbeams (8), form closed loop configuration.
4. the prestressing force universal mill for H profile steel production according to claim 1 it is characterised in that：Described hydraulic cylinder
Assembling is provided with four.
5. the prestressing force universal mill for H profile steel production according to claim 2 it is characterised in that：Described lower pulling plate
(9) it is bolted to connection in base (11).
6. the prestressing force universal mill for H profile steel production according to claim 1 it is characterised in that：Described hydraulic cylinder
(3) it is provided with equal pressure pad (4) and top chock (5) between.
7. the prestressing force universal mill for H profile steel production according to claim 2 it is characterised in that：Described upper bearing (metal)
Detachably it is provided with some roll gap regulation pads (6) between seat (5) and upper arm-tie (7), can between step (10) and lower pulling plate (9)
Dismounting is provided with some roll gap regulation pads (6).
8. the prestressing force universal mill for H profile steel production according to claim 1 it is characterised in that：Described base
(11) it is hollow structure, step (10) is in the hollow structure of base (11).
9. the prestressing force universal mill for H profile steel production according to claim 1 it is characterised in that：Described edger roll
Manually screwdown gear (16) adjustment of roll gap size.
10. the prestressing force universal mill for H profile steel production according to claim 9 it is characterised in that：Described manual pressure
Lower device (16) is Wedge mechanism, and is provided with pad between Wedge mechanism and edger roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610968820.9A CN106424132B (en) | 2016-10-27 | 2016-10-27 | A kind of prestressing force universal mill for H profile steel production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610968820.9A CN106424132B (en) | 2016-10-27 | 2016-10-27 | A kind of prestressing force universal mill for H profile steel production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106424132A true CN106424132A (en) | 2017-02-22 |
| CN106424132B CN106424132B (en) | 2019-04-05 |
Family
ID=58179438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610968820.9A Active CN106424132B (en) | 2016-10-27 | 2016-10-27 | A kind of prestressing force universal mill for H profile steel production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106424132B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113270022A (en) * | 2021-05-24 | 2021-08-17 | 攀钢集团攀枝花钢钒有限公司 | Steel rail all-purpose rolling metal flow plane demonstration control method |
| CN113327502A (en) * | 2021-05-24 | 2021-08-31 | 攀钢集团攀枝花钢钒有限公司 | Adjusting mechanism of metal flow demonstration die of steel rail edging mill |
| CN113362693A (en) * | 2021-05-24 | 2021-09-07 | 攀钢集团攀枝花钢钒有限公司 | Demonstration control method for metal flow plane of steel rail edging mill |
| CN114728316A (en) * | 2020-01-22 | 2022-07-08 | 日本森吉米尔公司 | Multi-roller rolling mill |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0166478A1 (en) * | 1984-05-28 | 1986-01-02 | POMINI FARREL S.p.A. | Rolling stand of the type with tie-rods with oscillating supports with interchangeable intermediate holder bases |
| CN87105966A (en) * | 1986-12-16 | 1988-09-28 | Sms舒路曼-斯玛公司 | The mill stand of single face assembling collars on a pair roller axle of two-side supporting |
| JPH04288907A (en) * | 1991-01-14 | 1992-10-14 | Nippon Steel Corp | Universal rolling mill |
| JP2003126903A (en) * | 2001-10-24 | 2003-05-08 | Nippon Steel Corp | Prestressing machine for combination mill |
| CN202516841U (en) * | 2012-05-04 | 2012-11-07 | 中冶赛迪工程技术股份有限公司 | Full-prestressing high-rigidity universal rolling mill |
| CN202683611U (en) * | 2012-06-13 | 2013-01-23 | 无锡市瑞尔精密机械股份有限公司 | Sizing mill capable of being adjusted in roll gap manually |
| CN203002749U (en) * | 2012-12-05 | 2013-06-19 | 西安航通机械设备有限公司 | High-accuracy H type steel universal rolling mill |
| CN206296304U (en) * | 2016-10-27 | 2017-07-04 | 天津市中重科技工程有限公司 | A kind of novel pre-stressed universal mill |
-
2016
- 2016-10-27 CN CN201610968820.9A patent/CN106424132B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0166478A1 (en) * | 1984-05-28 | 1986-01-02 | POMINI FARREL S.p.A. | Rolling stand of the type with tie-rods with oscillating supports with interchangeable intermediate holder bases |
| CN87105966A (en) * | 1986-12-16 | 1988-09-28 | Sms舒路曼-斯玛公司 | The mill stand of single face assembling collars on a pair roller axle of two-side supporting |
| JPH04288907A (en) * | 1991-01-14 | 1992-10-14 | Nippon Steel Corp | Universal rolling mill |
| JP2003126903A (en) * | 2001-10-24 | 2003-05-08 | Nippon Steel Corp | Prestressing machine for combination mill |
| CN202516841U (en) * | 2012-05-04 | 2012-11-07 | 中冶赛迪工程技术股份有限公司 | Full-prestressing high-rigidity universal rolling mill |
| CN202683611U (en) * | 2012-06-13 | 2013-01-23 | 无锡市瑞尔精密机械股份有限公司 | Sizing mill capable of being adjusted in roll gap manually |
| CN203002749U (en) * | 2012-12-05 | 2013-06-19 | 西安航通机械设备有限公司 | High-accuracy H type steel universal rolling mill |
| CN206296304U (en) * | 2016-10-27 | 2017-07-04 | 天津市中重科技工程有限公司 | A kind of novel pre-stressed universal mill |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114728316A (en) * | 2020-01-22 | 2022-07-08 | 日本森吉米尔公司 | Multi-roller rolling mill |
| CN113270022A (en) * | 2021-05-24 | 2021-08-17 | 攀钢集团攀枝花钢钒有限公司 | Steel rail all-purpose rolling metal flow plane demonstration control method |
| CN113327502A (en) * | 2021-05-24 | 2021-08-31 | 攀钢集团攀枝花钢钒有限公司 | Adjusting mechanism of metal flow demonstration die of steel rail edging mill |
| CN113362693A (en) * | 2021-05-24 | 2021-09-07 | 攀钢集团攀枝花钢钒有限公司 | Demonstration control method for metal flow plane of steel rail edging mill |
| CN113270022B (en) * | 2021-05-24 | 2022-03-22 | 攀钢集团攀枝花钢钒有限公司 | Steel rail all-purpose rolling metal flow plane demonstration control method |
| CN113362693B (en) * | 2021-05-24 | 2022-03-22 | 攀钢集团攀枝花钢钒有限公司 | Demonstration control method for metal flow plane of steel rail edging mill |
| CN113327502B (en) * | 2021-05-24 | 2022-07-19 | 攀钢集团攀枝花钢钒有限公司 | Adjusting mechanism of metal flow demonstration die of steel rail edging mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106424132B (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106424132A (en) | Prestress universal rolling mill for H structural steel production | |
| EP2285512B1 (en) | Multi-strand continuous casting system | |
| CN101391267B (en) | On-line assembling entirety on-position assembling method of edge mill | |
| EP3177788A1 (en) | Supporting elements of a supporting structure, corresponding connection elements, and devices and methods for producing same | |
| EP2014390A1 (en) | Four-die forging device | |
| CN101823111A (en) | Overlarge type ring rolling machine | |
| US9636726B2 (en) | Apparatus for changing rolls of a straightening machine | |
| CN102310079A (en) | Intelligent rolling mill | |
| EP1732715B1 (en) | Method for the insertion of machine units into a production line | |
| EP0250610B1 (en) | Toggle, cutting and reshaping press | |
| CN206296304U (en) | A kind of novel pre-stressed universal mill | |
| CN100363121C (en) | Universal space self-potential stiff mill | |
| CN106140822B (en) | A kind of position feedback device and its position feedback control method of multi-roll mill working roll | |
| US3367162A (en) | Apparatus for reducing slab width | |
| CN107774742A (en) | A kind of new change roll spacing plate-straightening machine | |
| CN207138502U (en) | A kind of collateral support arrangement of the working roll of milling train | |
| US3368381A (en) | Preloaded roll frame structure | |
| DE102010007660A1 (en) | continuous casting | |
| CN103517774B (en) | For the feed roller of roller mill and the assembly of stripper and the method operating the feed roller assembly being used for roller mill | |
| CN107350287A (en) | A kind of collateral support arrangement of the working roll of eighteen-high mill | |
| CN201711474U (en) | Drive roll supporting adjustment device of ultra-large type ring rolling machine | |
| CN112547849A (en) | Operation side frame movable type high-rigidity small section steel in-row straightening machine | |
| EP0949024B1 (en) | Support guide for a casting strand in a continuous casting plant | |
| EP2869945B1 (en) | Continuously operating casting and rolling system | |
| JP5247541B2 (en) | Multi-row rolling equipment for section steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.16, Jingxiang Road, Science Park, Beichen District, Tianjin, 300409 Patentee after: Zhongzhong Technology (Tianjin) Co.,Ltd. Address before: No.16, Jingxiang Road, Science Park, Beichen District, Tianjin, 300409 Patentee before: TIANJIN ZHONGZHONG SCIENCE TECHNOLOGY & ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |