CN102764766A - Reconstruction method for adding rolling mill on existing rolling line - Google Patents
Reconstruction method for adding rolling mill on existing rolling line Download PDFInfo
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- CN102764766A CN102764766A CN2012102693496A CN201210269349A CN102764766A CN 102764766 A CN102764766 A CN 102764766A CN 2012102693496 A CN2012102693496 A CN 2012102693496A CN 201210269349 A CN201210269349 A CN 201210269349A CN 102764766 A CN102764766 A CN 102764766A
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Abstract
The invention discloses a reconstruction method for adding a rolling mill on an existing rolling line. By the aid of the reconstruction method, the downtime can be shortened. The reconstruction method comprises that an old roller way in a new rolling mill area is removed, and then a temporary roller way is arranged at the position; a rolling mill foundation is constructed under the temporary roller way; and a push foundation and a push railway which is located on the push foundation are arranged in a construction area outside the rolling line, the push railway extends to the rolling mill foundation, the rolling mill is assembled on the push railway, then the rolling mill is pushed onto the rolling mill foundation by a push device, a reinforcing foundation of a rolling mill rack is constructed and fixed after the rolling mill is in place, then the push foundation serves as a foundation construction roller changing device foundation, and finally installation and piping of a roller changing device are finished. By the aid of the method, the downtime caused by reconstruction can be shortened greatly, and the method is significant in economic benefit and social benefit and is mainly applied to reconstruction of the existing rolling line by adding the rolling mill.
Description
Technical field
The present invention relates to a kind of roll line remodeling method, especially a kind of existing roll line is set up the remodeling method of milling train.
Background technology
At present,, increase the transformation of milling train unit, can require usually to shorten the off-time as far as possible, to reduce the production loss of factory for the rolling line of producing for many years.
The rolling line reforming mode of conventional increase milling train unit is: stop production comprehensively and transform, shorten as far as possible and transform needed man-hour to shorten the off-time.Its technological process is: stopping production → part laminar flow roller-way dismounting → roller-way basis is abolished to basement bottom board end face → milling train and corollary apparatus foundation construction → milling train and corollary apparatus installation → milling train body pipe arrangement → unit and is debugged → resume production.
The defective of above conventional reforming mode is that the off-time is long, is generally some months.
Summary of the invention
In order to overcome the existing long deficiency of conventional reforming mode off-time that increases the milling train unit, technical problem to be solved by this invention provides the remodeling method that a kind of existing roll line that shortens the off-time is set up milling train.
The technical solution adopted for the present invention to solve the technical problems is: existing roll line is set up the remodeling method of milling train, behind the old roller-way of the newly-increased mill area of dismounting, at this place interim roller-way is set; Construction milling train basis below interim roller-way; Construction area outside roll line is provided with to be passed the basis and is positioned at the passing track of passing on the basis; Pass track and extend to the milling train basis; On the passing track, assemble milling train; It is in place to utilize push unit that milling train is passed to the milling train basis then, and the back in place construction fixedly reinforcement of rolling-mill housing is basic.
Further be, by formal specification requirement of installing with the milling train rail chair passing on the track behind the location, on the milling train rail chair, connect rolling-mill housing and upper beam again, and according to the installation dimension of normalized checking, adjustment rolling-mill housing and upper beam.
Further be after milling train rail chair, rolling-mill housing and upper beam install, after installing on the milling train rail chair and debugging push unit, to carry out the installation of milling train body miscellaneous equipment and the installation of body pipe arrangement again.
Further be after push unit debugging is accomplished, to carry out between milling train rail chair and passing basis, the adjustment backing plate being set before the installation of installation and body pipe arrangement of milling train body miscellaneous equipment.
Further be, pass track and be provided with slide rail, the piston shoes with the slide rail coupling are set on the milling train rail chair.
Further be before passing milling train, to accomplish the flushing of milling train body pipe arrangement and this part pipe arrangement.
Further be the interim crane that covers milling train assembling zone to be installed to be used for the milling train assembling.
Further being, after the milling train passing is in place, is foundation construction changing rig basis with said passing basis, accomplishes changing rig then and installs and pipe arrangement.
Further be that said reinforcement basis is connected with the milling train basis through reserving joint bar or bar planting.
The invention has the beneficial effects as follows: the off-time significantly shortens, and tangible economic benefit and social benefit are arranged.
Description of drawings
Fig. 1 is the flow chart that existing existing roll line is set up the conventional remodeling method of milling train.
Fig. 2 is the flow chart that existing roll line of the present invention is set up the remodeling method of milling train.
Fig. 3 is the sketch map of interim roller-way.
Fig. 4 is the sketch map (dotted arrow is represented virtual passing direction among the figure) on conventional milling train basis.
Fig. 5 is the sketch map on milling train basis when adopting remodeling method of the present invention.
Fig. 6 is the A-A cutaway view of Fig. 5.
Fig. 7 is milling train and a push unit foundation layout plan (push unit and track are not shown) when adopting remodeling method of the present invention.
Fig. 8 is the sketch map on secondary construction reinforcement basis, milling train basis when adopting remodeling method of the present invention.
Fig. 9 is a sketch map of passing track and adjustment backing plate.
Project under construction for needing to stop production in the solid box of Fig. 1, Fig. 2 is the project under construction that need not stop production in the frame of broken lines.
Be labeled as among the figure, 1-base-supporting steel truss, the interim roller-way of 2-, 3-keeps roller-way, and 4-keeps the basis, and 5-need abolish the basis; 6-rolling-mill housing bottom and conventional basic interference zone, 7-milling train basis, 8-passes basis, the interim crane Foundation of steel frame of 9-, the interim crane steelframe of 10-, the interim crane of 11-; The 12-rolling-mill housing, 13-one-time-concreting basis arrangement of reinforcement, 14-reserves joint bar or bar planting, and 15-passes track, 16-milling train rail chair; 17-reinforcement basis, 18-adjusts backing plate, 19-foundation bolt, 20-slide rail, 21-piston shoes; The 22-rolling centerline, 23-Provisional Center line, the center line of 31-first rolling mill, the center line of 32-second rolling mill, the center line of 33-the 3rd rolling mill.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
As shown in Figure 1; The conventional construction technology that on existing roll line, increases milling train is: stoppings production → part laminar flow roller-way dismounting → roller-way basis is abolished to debug → hold to load to basement bottom board end face → milling train and corollary apparatus foundation construction → rolling-mill housing installation → milling train body miscellaneous equipment installation → milling train body pipe arrangement → zero load monomer debugging → zero load interlock and is debugged → resume production; Wherein, When carrying out milling train and corollary apparatus foundation construction, carry out transfer gear box and main motor foundation construction and roll change foundation construction, when carrying out the installation of milling train body and body miscellaneous equipment, accomplish the installation of transfer gear box and main motor installation and changing rig, changing rig conduit under fluid pressure.Be connected with roll as for being connected between transfer gear box and the main motor, transfer gear box, normally in the process of milling train monomer debugging, connect, that is: after the independent test running of main motor is accomplished, is being connected also test running with transfer gear box; After each hydraulic means in the rolling-mill housing and the debugging of hydraulic pressure changing rig monomer are accomplished; Could roll stacks be placed on the changing rig; Utilize hydraulic cylinder that roll stacks is pushed rolling-mill housing, at this moment, main motor, transfer gear box, universal-joint spindle, roll working roll just have been connected in together; Unclamp and connect an enclasp device, utilize the test running of main driven by motor roll.
The advantage of conventional method is, no unnecessary ancillary equipment configuration and installing, but the shortcoming of conventional method be to transform during roll line be in suspended state always, how long transform the duration has, and how long just has downtime, influences productivity effect and social benefit.
Like Fig. 2; Fig. 3; Fig. 5; Fig. 6; Fig. 7; Fig. 8 and shown in Figure 9; Existing roll line of the present invention is set up the remodeling method of milling train after the newly-increased mill area of dismounting is transformed the old roller-way in zone in other words; Interim roller-way 2 is set at this place; Interim roller-way 2 is connected between the breakpoint that keeps roller-way 3; The main effect of interim roller-way 2 is the old roller-ways with the newly-increased mill area of this roller-way replacement; For abolishing on the old basis of newly-increased mill area; New foundation construction provides operating condition; Guarantee keeping under the situation of ordinary production; Rebuilding construction can carry out safely smoothly; After old roller-way basis abolished, construction milling train basis 7 below interim roller-way 2; Keeping production period; Construction area outside roll line is provided with to be passed basis 8 and is positioned at the passing track of passing on the basis 8 15; Pass track 15 and extend to milling train basis 7; Passing track 15 is horizontal rail; On passing track 15, assemble milling train, the assembling position that also is about to milling train moves outward, for example by the rolling centerline 22 outer Provisional Center lines 23 that move to; Avoided stopping production, utilized push unit to pass to the milling train basis 7 milling train in place then at the milling train assembly process; During by the inventive method construction; Carry out just that roller-way construction and milling train are passed in place, changing rig foundation construction and changing rig is installed, need stopping production during the milling train debugging; Though can producing the gadget buying and install, dismantle the special expenses that is brought, the present invention increases; But the off-time significantly shortens, and the economic benefit increase that brings thus substantially exceeds special expenses increases the interests loss that is brought.
Strip-mill strip body regions basis is generally structure as shown in Figure 4, and this structure generally is the basis according to the design of normal mounting method, and rolling-mill housing 12 can be put into from the breach top that basic and milling train rail chair are stayed.But then must be noted that when using remodeling method of the present invention: the one-time-concreting zone on milling train basis should be avoided interfering with the bottom of rolling-mill housing; Promptly should avoid rolling-mill housing bottom as shown in Figure 5 and conventional basic interference zone 6; After treating that the milling train passing is in place, the fixedly reinforcement basic 17 of rolling-mill housing 2 of construction again.
The design of interim roller-way 2 can based on the physical dimension of the physical dimension of newly-increased mill area, original base, and consider to resume production after need abolish the working space on basis 5, confirm design after its basic size, make and install.As shown in Figure 3, interim roller-way 2 can adopt base-supporting steel truss 1 to support, and the two ends of base-supporting steel truss 1 are connected in and keep on the basis 4.
After preparation of construction is ready; The old roller-way that to transform in the zone that stops production in short-term that production line capable of using is about 48 hours is removed; And cut the old basis of part; Interim roller-way 2 is installed, and the principle that old basis cuts is the installation that will guarantee interim roller-way 2, and interim roller-way 2 belows after resuming production have enough working spaces to guarantee the continuation construction of next stage.Interim roller-way 2 can begin the basis, bottom is continued to abolish to the basement bottom board upper level after installing and resuming production.Old basis is abolished the mode that can adopt static blasting and pneumatic pick to abolish to combine and is carried out.Abolish the back that finishes and carry out necessary cleaning with the passing base area, can begin milling train basis 7 and the construction of passing basic 8 newly establishing the milling train base area.
For fear of after the milling train passing is in place, also the milling train installation dimension being adjusted and being prolonged the off-time; Preferably milling train rail chair 16 is being passed on the track 15 behind the location by formal specification requirement of installing; On milling train rail chair 16, connect rolling-mill housing 12 and upper beam again, and according to the relevant installation dimension of normalized checking, adjustment rolling-mill housing 12 and upper beam.
After milling train rail chair 16, rolling-mill housing 12 and upper beam install; In the passing process; Because of the reason such as asynchronous of push unit causes the skew of milling train installation dimension; Preferably, carry out the installation of milling train body miscellaneous equipment and the installation of body pipe arrangement again to after being installed in push unit on the milling train rail chair 16 and debugging.
After said push unit debugging is accomplished; Carry out before the installation of installation and body pipe arrangement of milling train body miscellaneous equipment; Adjustment backing plate 18 preferably is set at milling train rail chair 16 and between passing basic 8; Stressed impaired in the installation of the installation process of milling train body miscellaneous equipment and body pipe arrangement to avoid passing track 15, thus cause in the passing process, and impaired passing track 15 influences the installation dimension of milling train.
In order to reduce the passing resistance, preferably pass track 15 and be provided with slide rail 20, the piston shoes 21 that mate with slide rail 20 are set on milling train rail chair 16, also reduced the processing cost of passing track 15 simultaneously.Pass resistance for reducing, can between slide rail 20 and piston shoes 21, smear an amount of lubricant grease.
Milling train body pipe arrangement One's name is legion, pipeline rout is complicated, and the preparation time is generally at 30～70 days.In order further to reduce the off-time of newly-increased milling train after in place on the roll line, preferably before passing milling train, accomplish the flushing of milling train body pipe arrangement and this part pipe arrangement.Promptly after the installation of milling train body equipment, promptly begin milling train body piping work, after accomplishing the body pipe arrangement, can earlier milling train body pipe arrangement be carried out circulation flushing and finish, to shorten next step flushing of pipeline time.
In order to reduce taking original crane gear in the workshop between the milling train installation period; Make and produce and rebuilding construction mutually noninterfere basically; The regional interim crane 11 of covering milling train assembling preferably is installed is used for the milling train assembling, then corresponding, in construction milling train basic 7 and basic 8 o'clock of passing; Can carry out the construction of interim crane Foundation of steel frame 9 and the installation of interim crane steelframe 10; Interim crane 11 is installed on the interim crane steelframe 10, and the installation of interim crane can be adopted the original crane gear lifting in the workshop, after the phase, Installation and Debugging finished, can begin the installation of milling train; The lifting capacity of interim crane 11 confirms that according to the heaviest one piece apparatus weight of milling train body except that frame the upper beam that heavier rolling-mill housing 12 and sling height are higher etc. can be used original crane gear lifting in the workshop.
Can begin to install passing track 15 after basic 7 constructions of passing finish, the indeformable displacement of milling train is as the criterion in the passing process to keep in the design and installation of passing track 15 and push unit.Passing the installation test stone of track 15 can carry out with reference to the guide rail installation requirement of GB50271 " Code for construction and acceptancw of metal cutting machine installation engineering " middle guide grinding machine.Push unit preferably adopts the self-locking hydraulic pressure creep machine that belongs to prior art.
Pass in place after, should check and adjust the position dimension of rolling-mill housing window side.Check and carry out being connected of milling train body pipe arrangement and workshop pipeline after qualified again, and remove and pass track 15, accomplish the construction on reinforcement basis 17.
To take the position with the supporting changing rig of milling train owing to pass basis 8; After the milling train passing is in place; Be foundation construction changing rig basis preferably with said passing basis 8; Promptly utilize the push unit basis as base plate, the changing rig basis of directly constructing is above that accomplished changing rig then and is installed and pipe arrangement.In the conventional remodeling method of the prior art; Changing rig basis and changing rig are installed with milling train basis and milling train assembling and are carried out synchronously; But since changing rig basis and changing rig install time that actual institute will spend and milling train basis and milling train assembling time that will spend compare weak point a lot, so adopt method of the present invention still can shorten the off-time.
Like Fig. 6 and shown in Figure 8, said reinforcement basis 17 can be connected with milling train basis 7 through reserving joint bar or bar planting 14, though therefore build for secondary on reinforcement basis 17, but still can connect into the basis that milling train is formed firm support with the milling train basis 7 of one-time-concreting.
Embodiment:
Certain steel plant built up an excellent special steel steel rolling production-line of 1800mm in 2008; Its main technique equipment is configured to 1 walking beam furnace, 1 vertical miller, 1 four roller reversible roughing unit, 1 steekle mill unit, 1 coiling machine, and design is produced 800000 tons per year.Along with the completion that the said firm's ironmaking technology upgrading and stainless steel steel-smelting technology are transformed, the hot rolling slab aggregated capacity reaches 1,800,000 tons.For being complementary with the upstream process production capacity, to steckel rolling line capacity expansion revamping, newly-increased 1 heating furnace, the coiler furnace outlet increases by 3 finishing mills, and batching the district increases by 1 coiling machine, and the traffic zone increases by 3 sections step rates.Rolling line changes the 1+1+3 pattern into after the technological transformation, and capital equipment has: 2 walking beam heating furnaces, 1 vertical miller, 1 roughing mill, 1 rotary drum flying shear, 1 stove volume finishing mill, 3 finishing mills, the reinforced cooling facility for laminar flow of 1 cover, 2 coiling machines, 1 cover coil of strip supply line.The key position of this improvement project restriction duration is the installation of newly-increased 3 finishing mills behind the coiler furnace.
Use remodeling method of the present invention and accomplish the installation of said 3 finishing mills.Total duration, off-time to conventional modification scheme and the inventive method improvement scheme compare; On this basis; By the situation of not organizing raising the output in advance, the revenue loss aspect of steel rolling production-line stopping production production loss, loss of income and government aspect is carried out primary Calculation and relatively seen the following form 1.
The pure stopping production loss of table 1 is calculated and is compared
As production capacity is not lost in raising the output in advance; May bring losing of market, therefore, again according to organizing well stimulation in advance; 50% of the production capacity of shutdown period loss is produced in advance; Promptly raising the output 50% in every month compares it to remedy the economic loss that stops production and bring again in the one-period before the stopping production cycle of correspondence, and its contrast situation is referring to table 2.
Table 2 increases production the comparison of 50% loss production capacity in advance
Prove through above-mentioned two kinds of comparison methods and comparison result: the present invention program can significantly shorten the off-time with respect to conventional modification scheme, and tangible economic benefit (performance of enterprises) and obvious social (expenses of taxation income) are arranged.
Claims (9)
1. existing roll line is set up the remodeling method of milling train, it is characterized in that: after removing the old roller-way of newly-increased mill area, interim roller-way (2) is set at this place; On interim roller-way (2) construction milling train basis, below (7); Construction area outside roll line is provided with to be passed basis (8) and is positioned at the passing track of passing on the basis (8) (15); Pass track (15) and extend to milling train basis (7); Passing upward assembling milling train of track (15); It is upward in place to utilize push unit that milling train is passed to milling train basis (7) then, and back in place construction is the reinforcement basis (17) of rolling-mill housing (2) fixedly.
2. existing roll line as claimed in claim 1 is set up the remodeling method of milling train; It is characterized in that: by formal specification requirement of installing with milling train rail chair (16) after passing track (15) and going up the location; Go up to connect rolling-mill housing (12) and upper beam at milling train rail chair (16) again, and according to the installation dimension of normalized checking, adjustment rolling-mill housing (12) and upper beam.
3. existing roll line as claimed in claim 2 is set up the remodeling method of milling train; It is characterized in that: after milling train rail chair (16), rolling-mill housing (12) and upper beam install; After milling train rail chair (16) is gone up installation and debugging push unit, carry out the installation of milling train body miscellaneous equipment and the installation of body pipe arrangement again.
4. existing roll line as claimed in claim 3 is set up the remodeling method of milling train; It is characterized in that: after the push unit debugging is accomplished; Carry out before the installation of installation and body pipe arrangement of milling train body miscellaneous equipment, at milling train rail chair (16) and pass adjustment backing plate (18) is set between the basis (8).
5. set up the remodeling method of milling train like claim 1,2,3 or 4 described existing roll lines, it is characterized in that: pass track (15) and be provided with slide rail (20), go up the piston shoes (21) that are provided with slide rail (20) coupling at milling train rail chair (16).
6. set up the remodeling method of milling train like claim 1,2,3 or 4 described existing roll lines, it is characterized in that: before passing milling train, accomplish the flushing of milling train body pipe arrangement and this part pipe arrangement.
7. set up the remodeling method of milling train like claim 1,2,3 or 4 described existing roll lines, it is characterized in that: the interim crane (11) that covers milling train assembling zone is installed is used for the milling train assembling.
8. set up the remodeling method of milling train like claim 1,2,3 or 4 described existing roll lines, it is characterized in that: after the milling train passing is in place, be foundation construction changing rig basis, accomplish changing rig then and install and pipe arrangement with said passing basis (8).
9. set up the remodeling method of milling train like claim 1,2,3 or 4 described existing roll lines, it is characterized in that: said reinforcement basis (17) is connected with milling train basis (7) through reserving joint bar or bar planting (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210269349.6A CN102764766B (en) | 2012-07-31 | 2012-07-31 | Reconstruction method for adding rolling mill on existing rolling line |
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| CN201210269349.6A CN102764766B (en) | 2012-07-31 | 2012-07-31 | Reconstruction method for adding rolling mill on existing rolling line |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447304A (en) * | 2013-09-13 | 2013-12-18 | 中国十九冶集团有限公司 | Online installing method for existing rolling line rolling mill |
| CN103469813A (en) * | 2013-09-10 | 2013-12-25 | 中国十九冶集团有限公司 | Online mounting method for mills on existing rolling lines |
| CN104399747A (en) * | 2014-11-17 | 2015-03-11 | 中国第一重型机械股份公司 | Steckel mill production line |
| CN105297796A (en) * | 2014-07-21 | 2016-02-03 | 五冶集团上海有限公司 | Rapid reinforcing and transforming method for drum type flying shears |
| CN106002240A (en) * | 2016-06-08 | 2016-10-12 | 中国二十二冶集团有限公司 | Hydraulic press frame mounting method |
| CN113231477A (en) * | 2021-04-15 | 2021-08-10 | 中国三冶集团有限公司宁波分公司 | Rolling mill horizontal sliding device with lifting function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6425278B1 (en) * | 1999-11-30 | 2002-07-30 | Mitsubishi Heavy Industries, Ltd | Roll changing apparatus of rolling mill |
| CN2829928Y (en) * | 2005-10-14 | 2006-10-25 | 中国第二重型机械集团公司 | Fast roller displacing appts, for six-roller rolling mill |
| CN100479941C (en) * | 2002-12-05 | 2009-04-22 | Sms迪马格股份公司 | Rolling mill comprising means for exchanging the rolls |
| CN101664762A (en) * | 2009-09-11 | 2010-03-10 | 上海同济宝冶建设机器人有限公司 | Ultra-large type memorial archway side-standing rotating installation technology |
-
2012
- 2012-07-31 CN CN201210269349.6A patent/CN102764766B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6425278B1 (en) * | 1999-11-30 | 2002-07-30 | Mitsubishi Heavy Industries, Ltd | Roll changing apparatus of rolling mill |
| CN100479941C (en) * | 2002-12-05 | 2009-04-22 | Sms迪马格股份公司 | Rolling mill comprising means for exchanging the rolls |
| CN2829928Y (en) * | 2005-10-14 | 2006-10-25 | 中国第二重型机械集团公司 | Fast roller displacing appts, for six-roller rolling mill |
| CN101664762A (en) * | 2009-09-11 | 2010-03-10 | 上海同济宝冶建设机器人有限公司 | Ultra-large type memorial archway side-standing rotating installation technology |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469813A (en) * | 2013-09-10 | 2013-12-25 | 中国十九冶集团有限公司 | Online mounting method for mills on existing rolling lines |
| CN103469813B (en) * | 2013-09-10 | 2016-02-03 | 中国十九冶集团有限公司 | A kind of online mounting method of existing roll line milling train |
| CN103447304A (en) * | 2013-09-13 | 2013-12-18 | 中国十九冶集团有限公司 | Online installing method for existing rolling line rolling mill |
| CN103447304B (en) * | 2013-09-13 | 2015-08-26 | 中国十九冶集团有限公司 | The online installation method of existing roll line milling train |
| CN105297796A (en) * | 2014-07-21 | 2016-02-03 | 五冶集团上海有限公司 | Rapid reinforcing and transforming method for drum type flying shears |
| CN105297796B (en) * | 2014-07-21 | 2017-02-15 | 五冶集团上海有限公司 | Rapid reinforcing and transforming method for drum type flying shears |
| CN104399747A (en) * | 2014-11-17 | 2015-03-11 | 中国第一重型机械股份公司 | Steckel mill production line |
| CN106002240A (en) * | 2016-06-08 | 2016-10-12 | 中国二十二冶集团有限公司 | Hydraulic press frame mounting method |
| CN113231477A (en) * | 2021-04-15 | 2021-08-10 | 中国三冶集团有限公司宁波分公司 | Rolling mill horizontal sliding device with lifting function |
| CN113231477B (en) * | 2021-04-15 | 2022-07-26 | 中国三冶集团有限公司宁波分公司 | Rolling mill horizontal sliding device with lifting function |
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|---|---|
| CN102764766B (en) | 2014-10-01 |
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