CN101391267A - On-line assembling entirety on-position assembling method of edge mill - Google Patents
On-line assembling entirety on-position assembling method of edge mill Download PDFInfo
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- CN101391267A CN101391267A CNA200810226014XA CN200810226014A CN101391267A CN 101391267 A CN101391267 A CN 101391267A CN A200810226014X A CNA200810226014X A CN A200810226014XA CN 200810226014 A CN200810226014 A CN 200810226014A CN 101391267 A CN101391267 A CN 101391267A
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Abstract
The invention relates to a method for the integral falling installation of on-line assembly of a vertical miller, belonging to the technical field of installation of large-sale equipment. The installing steps comprise the installation and transverse alignment of the soleplate of the vertical miller, the arrangement of an assembling and falling device, the assembly of an upper beam and a lower beam of a stander outlet, the slippage of a stander torii, the assembly and fixation of an upper beam and a lower beam of a stander inlet; the integral falling installation position of the stander and the installation of a rolling mill transmission device. The invention has the advantages that a special lifting device is not needed to be manufactured; the architecture design of workshops is not needed; the constructing investment is not increased; a field for building a precision assembly platform is not needed to be reserved in a main workshop; the time for the vertical miller equipment to enter the arena is not limited, so the installation cost can be greatly reduced, the labor intensity is lightened, and the time limit for the installation is shortened; and the invention is applied to the projects of installation and repairing of vertical millers attached to hot plate or band roughing mills.
Description
Technical field
The invention belongs to main equipment mounting technique field, a kind of on-line assembling entirety on-position assembling method of edge mill particularly is provided, be applicable to the installation of the attached vertical miller of large-scale hot plate (band) roughing mill.
Background technology
The attached vertical miller of large-scale hot plate (band) roughing mill is a milling train technology of introducing German De Make-Xi mark company, domestic many complete equipments manufacturing of having gone into operation is installed by foreign side's Technical Team Leader, the installation method of " installation manual " regulation vertical miller frame of foreign side is: the line exterior part is assembled into integral body, adopts the special-purpose lifting of " ten " font shoulder pole doube bridge formula crane to lift the position.
The prerequisite of this installation method: the one, vertical miller and hot plate (band) rolling-mill housing is supplied or the on-the-spot assembling of the supply of material in advance simultaneously, and is before hot plate (band) milling train entablature is not installed, that the integral hoisting of vertical miller frame is in place; The 2nd, the elevating capacity of main rolling line factory building height and two bridge cranes of main rolling line is enough, will consider the lifting of vertical miller when plant designing and crane are provided with for this reason; The 3rd, reserved location in the main rolling line factory building is provided with vertical miller assembling interim measure, and the interim measure required precision is higher, need satisfy the assembly precision requirement of vertical miller.
Because the hot rolling line factory building of domestic introduction and civil Engineering Design are generally by domestic design, production process equipment is by foreign side's Technical Team Leader, the owner is the reduction expense when considering construction costs, the layout of general factory building height and crane is only used for satisfying maintenance, not consideration equipment is installed, so the height of plant designing is lower, when installing, many apparatus for production line are assurance equipment hoisting desired height, the employing foundation of civil work is reserved, treat to construct again after equipment hoisting the is finished method of reserved part foundation of civil work, cause civil engineering and equipment to install and influence each other, also be unfavorable for the required clean environment requirement of steel rolling precision equipment installation.
Installation method described in this technology, adopt online assembling, integral body fall the position installation method, different with the condition of the outer assemble method of assembling and job site line under the environment of plant, the lifting of vertical miller frame of the present invention does not need to make special-purpose lifting device, hoisting height (being factory building height) to crane is less demanding, and it installs the not restriction of heated sheet (band) roughing mill frame installation, also need not reserve vertical miller frame assembling place in factory building, set up high-precision assembly platform.The present invention is not only applicable to install, and is applicable to the maintenance and the replacing of vertical miller frame.
Summary of the invention
The object of the present invention is to provide on-line assembling entirety on-position assembling method of edge mill, technical problem to be solved is that " installation manual " that do not possess foreign side stipulated under the situation of the precondition that the attached vertical miller of large-scale hot plate (band) roughing mill is installed, reduce the vertical miller installation cost, shorten installation period, and can the adapt to vertical miller installation method of supply time flexibly
The invention provides a kind of on-line assembling entirety on-position assembling method of edge mill.Not only do not need to make special-purpose lifting device, and it installs the not restriction of heated sheet (band) roughing mill frame installation, need in factory building, not reserve vertical miller frame assembling place yet, set up high-precision assembly platform, do not relate to simultaneously the factory building design, do not increase construction investment, reduce installation cost greatly, reduce labor intensity, shorten installation period.Be applicable to the installation and the maintenance engineering of vertical miller.
The present invention includes setting, the assembling of frame outlet lower and upper cross-member, the framework memorial archway slippage and fixing, the assembling of frame inlet lower and upper cross-member and fixing, the whole decline installation in position of frame, the installation of milling train transmission device etc. of the assembling and a device that falls.Assembling and device in place comprise the hydraulic pressure push unit that backing plate jack system, component locations measurement mechanism, slippage are used.At first carry out the online assembling of vertical miller frame, the installation method of the whole then position that falls.Concrete steps are as follows:
A. the setting of vertical miller installation reference line, absolute altitude datum mark, base pad panel seat slurry, the setting up of mounting center line;
B. centering and check and accept base plate;
C. mounting seat on the vertical miller framework soleplate.
Step 2 is assembled and the setting of a device that falls
A. in vertical miller gantry base installation site and front end billet and hydraulic jack are set, billet is arranged near the foundation bolt and two foundation bolts middle parts, adopts the spot welding of paired taper liner plate, the foundation bolt that exceeds of backing plate gets final product; On the base concrete side wall baffle plate is set, preparation is passed and used jack, described jack is 200t～500t (looking the vertical miller size).
B. the position outline line after accurately measuring the vertical miller frame and hot plate (band) roughing mill framework memorial archway being connected scores marks on backing plate, and the adjusting pad plate height guarantees that its levelness meets the precision of equipment installation requirement.
A. vertical miller frame connector is fastened on the roughing mill memorial archway, its installation accuracy meets the precision of equipment installation requirement;
B. use bridge crane, 4 lifting point lifting vertical miller frames are set export upper and lower crossbeam, it is inserted on the connector (gets on, get off), determine two absolute altitude, center lines that collude beam according to the position that the vertical miller framework memorial archway is inserted in, error guarantees within the design drawing claimed range, and need to guarantee that two are colluded beam and two memorial archway keyways of vertical miller frame gap that matches and meet the design drawing requirement, use bracing reinforcement then.
A. be coated with a small amount of drier oil on backing plate, lifting transmission side vertical miller framework memorial archway is adjusted its position to the backing plate that sets, and guarantees that absolute altitude, position of center line are accurate, and the rigging position of polishing is simultaneously removed burr, so that assemble smoothly memorial archway and Gou Liang joint portion;
B. pass up and down with two jack during translation and move ahead, and, collude and check the gap, four sides when beam end enters tongue-and-groove at any time, deviation occurs and promptly adjust the memorial archway position, guarantee that the smooth translation of framework memorial archway puts in place with the observation of dial gauge measurement mechanism;
C. use with quadrat method the slippage of fore side framework memorial archway is put in place, connect outlet and collude the connecting bolt of beam and frame;
D. the horizontal connecting bolt of memorial archway is put on, noted erection sequence and installation direction.
A. use bridge crane, 4 lifting point lifting vertical miller frame inlet crossbeams (colluding beam) are set, get on, get off, collude the beam-ends head and be assembled in the framework memorial archway tongue-and-groove, penetrate horizontal connecting bolt;
B. laterally connecting bolt is fastening, and the vertical miller frame is formed an integral body.
Step 6, the whole decline installation in position of frame
A. withstand the vertical miller frame with 4 jack, progressively remove the backing plate of 1 jack stroke height, adopt computer control synchronization lifting jack group, guarantee that rolling-mill housing lands synchronously, keep its stability, avoid rollover with the landing of jack.
B. after finishing 1 descending stroke of jack, remove the backing plate below the jack, the samely carry out the 2nd jack landing stroke, until use backing plate-jack system to land, reserve jack 2mm descending stroke this moment, props up the vertical miller frame with the taper liner plate;
C. hang vertical miller frame one end with bridge crane, prop up after removing a pair of backing plate of this end, hang the vertical miller frame other end then, prop up after removing a pair of backing plate of this end, carry out this step repeatedly, drop to the installation site until the vertical miller frame.
D. carry out integral body and measure, centering, adjustment all reach required precision, and fastening all bolts are finished the installment work of vertical miller frame this moment.
Step 7, the milling train transmission device is installed
A., mill balancing beam and balance hydraulic cylinder and guide plate are installed;
B. all-hydraulic screwdown gear is installed;
C. the electric motor protecting cover is installed: lift transmission side and fore side electric motor protecting cover, and be connected with roughing mill with vertical miller with bolt, the lifting motor is to protective cover;
D. lift reductor and centering, adjustment, the lifting universal-joint spindle is connected with reductor and roll.
Therefore, on-line assembling entirety on-position assembling method of edge mill of the present invention, do not use the special-purpose lifting of special " ten " font shoulder pole, do not need two doube bridge formula cranes to lift yet, the hoisting height of crane is not claimed yet, assemble and the setting of a device that falls does not relate to the factory building design, need not architectural design and cooperate or require to change architectural design etc., so do not increase capital expenditure, and saved the special-purpose lifting of " ten " font shoulder pole manufacturing cost.For having found the attached vertical miller of a large-scale cheaply hot plate (band) roughing mill, numerous producers install and repair method.Because online assembling, need in main rolling line factory building, not reserve assembling position, set up accurate assembly platform, simultaneously vertical miller equipment time of marching into the arena unrestricted, can save mounting cost, save the duration, reduce labor intensity.
Description of drawings
Fig. 1 is the vertical miller on the hot rolled plate production line of the present invention.Wherein, base plate 1, base 2, mill housing 3, electric motor protecting cover 4, motor 5, reductor 6, cardan axis 7, frame entablature 8, roll 9, frame sill 10.
The specific embodiment
On-line assembling entirety on-position assembling method of edge mill comprises setting, frame outlet lower and upper cross-member (colluding beam) assembling, the framework memorial archway slippage and fixing, the assembling of frame inlet lower and upper cross-member and fixing, the whole decline installation in position of frame, the installation of milling train transmission device etc. of the assembling and a device that falls.Assembling and device in place comprise the hydraulic pressure push unit that backing plate-jack system, component locations measurement mechanism, slippage are used.This installation method is carried out according to following step:
A. the setting of vertical miller installation reference line, absolute altitude datum mark, base plate 1 backing plate seat slurry, the setting up of mounting center line;
B. centering and check and accept base plate 1;
C. mounting seat 2 on vertical miller framework soleplate 1.
Step 2 is assembled and the setting of a device that falls
A. reach front end on vertical miller gantry base 2 billet and hydraulic jack are set, billet is arranged near the foundation bolt and two foundation bolts middle parts, adopts the spot welding of paired taper liner plate, and the foundation bolt that exceeds of backing plate gets final product; On the base concrete side wall baffle plate is set, preparation is passed and used jack, described jack is 200t～500t (looking the vertical miller size).
B. the position outline line after accurately measuring vertical miller frame 3,8,10 and hot plate (band) roughing mill framework memorial archway being connected scores marks on backing plate, and the adjusting pad plate height guarantees that its levelness meets the precision of equipment installation requirement.
A. vertical miller frame 3,8,10 connectors are fastened on the roughing mill memorial archway, meet the installation accuracy requirement;
B. use bridge crane, 4 lifting point lifting vertical miller frames are set export upper and lower crossbeam 8,10, it is inserted on the connector (gets on, get off), absolute altitude, the center line of the upper and lower crossbeam 8,10 of outlet determined in the position of being inserted in according to vertical miller framework memorial archway 3, error guarantees within the design drawing claimed range, and need to guarantee that two are colluded beam 8,10 and two memorial archway 3 keyways of vertical miller frame gap that matches and meet the requirements, and use bracing reinforcement then;
A. on backing plate, be coated with a small amount of drier oil, lifting transmission side vertical miller framework memorial archway 3 is adjusted its position to the backing plate that sets, guarantee that absolute altitude, position of center line are accurate, the rigging position of polishing is simultaneously removed burr, so that memorial archway 3 assembles smoothly with the upper and lower crossbeam of outlet 8,10 joint portions;
B. pass up and down with two jack during translation and move ahead, and, export and check the gap, four sides when upper and lower crossbeam 8,10 ends enter tongue-and-groove at any time, deviation occurs and promptly adjust memorial archway 3 positions, guarantee that framework memorial archway 3 smooth translations put in place with the observation of dial gauge measurement mechanism;
C. use with quadrat method 3 slippages of fore side framework memorial archway are put in place, connect the connecting bolt of upper and lower crossbeam 8,10 of outlet and frame;
D. the horizontal connecting bolt of memorial archway 3 is put on, noted erection sequence and installation direction.Step 5,8,10 assemblings of frame inlet lower and upper cross-member are with fixing
A. use bridge crane, 4 lifting point lifting vertical miller frame inlet crossbeams 8,10 are set, get on, get off, inlet crossbeam 8,10 terminations are assembled in framework memorial archway 3 tongue-and-grooves, penetrate horizontal connecting bolt;
B. laterally connecting bolt is fastening, and vertical miller frame 3,8,10 is formed an integral body.
Step 6, the whole decline installation in position of frame
A. withstand vertical miller frame 3,8,10 with 4 jack, progressively remove the backing plate of 1 jack stroke height, land synchronously, keep its stability, avoid rollover, adopt computer control synchronization lifting jack group for guaranteeing rolling-mill housing with the landing of jack.
B. after finishing 1 descending stroke of jack, remove the backing plate below the jack, the samely carry out the 2nd jack landing stroke, until use backing plate-jack system to land, reserve jack 2mm descending stroke this moment, props up the vertical miller frame with the taper liner plate;
C. hang vertical miller frame one end with bridge crane, prop up after removing a pair of backing plate of this end, hang the vertical miller frame other end then, prop up after removing a pair of backing plate of this end, carry out this step repeatedly, drop to the installation site until the vertical miller frame.
D. carry out integral body and measure, centering, adjustment all reach required precision, and fastening all bolts are finished the installment work of vertical miller frame this moment.
Step 7, the milling train transmission device is installed
A., mill balancing beam and balance hydraulic cylinder and guide plate are installed;
B. all-hydraulic screwdown gear is installed;
C. electric motor protecting cover 4 is installed: lift transmission side and fore side electric motor protecting cover, and be connected with roughing mill with vertical miller with bolt, lifting motor 5 is to protective cover;
D. lift reductor 6 and centering, adjustment, lifting cardan axis 7 is connected with reductor 6 and roll 9.
Claims (8)
1, a kind of on-line assembling entirety on-position assembling method of edge mill is characterized in that, installation steps are:
(1) the vertical miller base plate is installed centering;
(2) assemble and the setting of a device that falls;
(3) frame outlet lower and upper cross-member assembling;
(4) framework memorial archway slippage;
(5) assembling of frame inlet lower and upper cross-member is with fixing;
(6) the whole decline installation in position of frame;
(7) the milling train transmission device is installed;
2, in accordance with the method for claim 1, it is characterized in that the step that described vertical miller base plate is installed centering is:
A. the setting of vertical miller installation reference line, absolute altitude datum mark, base pad panel seat slurry, the setting up of mounting center line;
B. centering and check and accept base plate;
C. mounting seat on the vertical miller framework soleplate.
3, in accordance with the method for claim 1, it is characterized in that the step of the setting of the described assembling and a device that falls is:
A. in vertical miller gantry base installation site and front end billet and hydraulic jack are set, billet is arranged near the foundation bolt and two foundation bolts middle parts, adopts the spot welding of paired taper liner plate, backing plate exceeds foundation bolt; On the base concrete side wall baffle plate is set, preparation is passed and used jack, described jack is 200t～500t;
B. the position outline line after accurately measuring the vertical miller frame and hot plate or band roughing mill framework memorial archway being connected scores marks on backing plate, and the adjusting pad plate height guarantees that its levelness meets the precision of equipment installation requirement.
4, in accordance with the method for claim 1, it is characterized in that the step of described frame outlet lower and upper cross-member assembling is:
A. vertical miller frame connector is fastened on the roughing mill memorial archway, its installation accuracy meets the precision of equipment installation requirement;
B. use bridge crane, 4 lifting point lifting vertical miller frames are set export upper and lower crossbeam, it is inserted on the connector, determine two absolute altitude, center lines that collude beam according to the position that the vertical miller framework memorial archway is inserted in, error guarantees within the design drawing claimed range, and need to guarantee that two are colluded beam and two memorial archway keyways of vertical miller frame gap that matches and meet the design drawing requirement, use bracing reinforcement then.
5, in accordance with the method for claim 1, it is characterized in that the step of described framework memorial archway slippage is:
A. be coated with drier oil on backing plate, lifting transmission side vertical miller framework memorial archway is adjusted its position to the backing plate that sets, and guarantees that absolute altitude, position of center line are accurate, and the rigging position of polishing is simultaneously removed burr, so that assemble smoothly memorial archway and Gou Liang joint portion;
B. pass up and down with two jack during translation and move ahead, and, collude and check the gap, four sides when beam end enters tongue-and-groove at any time, deviation occurs and adjust the memorial archway position, guarantee that the smooth translation of framework memorial archway puts in place with the observation of dial gauge measurement mechanism;
C. the slippage of fore side framework memorial archway is put in place, connect outlet and collude the connecting bolt of beam and frame;
D. the horizontal connecting bolt of memorial archway is put on.
6, in accordance with the method for claim 1, it is characterized in that the assembling of described frame inlet lower and upper cross-member with the step of fixing is:
A. use bridge crane, 4 lifting point lifting vertical miller frame inlet crossbeams are set or collude beam, get on, get off, collude the beam-ends head and be assembled in the framework memorial archway tongue-and-groove, penetrate horizontal connecting bolt;
B. laterally connecting bolt is fastening, and the vertical miller frame is formed an integral body.
7, in accordance with the method for claim 1, it is characterized in that the step of the whole decline installation in position of described frame is:
A. withstand the vertical miller frame with 4 jack, progressively remove the backing plate of 1 jack stroke height, adopt computer control synchronization lifting jack group, guarantee that rolling-mill housing lands synchronously with the landing of jack;
B. after finishing 1 descending stroke of jack, remove the backing plate below the jack, the samely carry out the 2nd jack landing stroke, until use backing plate-jack system to land, reserve jack 2mm descending stroke this moment, props up the vertical miller frame with the taper liner plate;
C. hang vertical miller frame one end with bridge crane, prop up after removing a pair of backing plate of this end, hang the vertical miller frame other end then, prop up after removing a pair of backing plate of this end, carry out this step repeatedly, drop to the installation site until the vertical miller frame;
D. carry out integral body and measure, centering, adjustment all reach required precision, and fastening all bolts are finished the installment work of vertical miller frame this moment.
8, in accordance with the method for claim 1, it is characterized in that described milling train transmission device installation steps are:
A., mill balancing beam and balance hydraulic cylinder and guide plate are installed;
B. all-hydraulic screwdown gear is installed;
C. the electric motor protecting cover is installed: lift transmission side and fore side electric motor protecting cover, and be connected with roughing mill with vertical miller with bolt, the lifting motor is to protective cover;
D. lift reductor and centering, adjustment, the lifting universal-joint spindle is connected with reductor and roll.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810226014 CN101391267B (en) | 2008-11-04 | 2008-11-04 | On-line assembling entirety on-position assembling method of edge mill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810226014 CN101391267B (en) | 2008-11-04 | 2008-11-04 | On-line assembling entirety on-position assembling method of edge mill |
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| CN101391267A true CN101391267A (en) | 2009-03-25 |
| CN101391267B CN101391267B (en) | 2010-12-01 |
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| CN101664762B (en) * | 2009-09-11 | 2011-12-21 | 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 |
| CN102735167A (en) * | 2012-06-08 | 2012-10-17 | 中冶天工集团有限公司 | Fitting up detecting method of large-scale memorial archway equipment |
| CN103862253A (en) * | 2014-02-28 | 2014-06-18 | 攀钢集团攀枝花钢钒有限公司 | Universal rolling mill house installation tooling and installation method |
| CN104624654A (en) * | 2014-12-31 | 2015-05-20 | 中国二冶集团有限公司 | Construction method for installation of puncher frame structure |
| CN104741384A (en) * | 2015-03-27 | 2015-07-01 | 山东钢铁股份有限公司 | Temporary substitute device for rolls of continuous rolling mill unit |
| CN104923565A (en) * | 2015-05-25 | 2015-09-23 | 中冶天工集团有限公司 | Method for simulating fastening state of rolling mill frame |
| CN106140821A (en) * | 2015-04-01 | 2016-11-23 | 上海宝冶集团有限公司 | Milling train tilts and the bearing calibration of skew |
| CN106140831A (en) * | 2015-04-01 | 2016-11-23 | 上海宝冶集团有限公司 | Milling train tilts and the correction locating measurement method of skew |
| CN106238462A (en) * | 2016-07-26 | 2016-12-21 | 天津天重中直科技工程有限公司 | A kind of cantilevered vertical miller |
| CN107282641A (en) * | 2016-04-05 | 2017-10-24 | 五冶集团上海有限公司 | A kind of parallels construction method of Bar Wire Product vertical mill base |
| CN109530445A (en) * | 2018-10-29 | 2019-03-29 | 上海二十冶建设有限公司 | A kind of mill housing top platform modularization method for rapidly mounting |
| CN110508621A (en) * | 2019-10-09 | 2019-11-29 | 南通瑞格精密机械有限公司 | High-accuracy rod-rolling mill method of manufacturing technology |
| CN112547801A (en) * | 2020-11-17 | 2021-03-26 | 十四冶建设集团云南安装工程有限公司 | High-precision ultrathin aluminum foil mill unit mounting method |
| CN113680826A (en) * | 2021-07-20 | 2021-11-23 | 宣化钢铁集团有限责任公司 | Maintenance method for vertical roll box of vertical rolling mill |
| CN113877966A (en) * | 2021-09-10 | 2022-01-04 | 上海二十冶建设有限公司 | Installation method of large-scale perforating machine in limited space |
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| CN101664762B (en) * | 2009-09-11 | 2011-12-21 | 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 |
| CN102735167A (en) * | 2012-06-08 | 2012-10-17 | 中冶天工集团有限公司 | Fitting up detecting method of large-scale memorial archway equipment |
| CN103862253A (en) * | 2014-02-28 | 2014-06-18 | 攀钢集团攀枝花钢钒有限公司 | Universal rolling mill house installation tooling and installation method |
| CN103862253B (en) * | 2014-02-28 | 2016-06-29 | 攀钢集团攀枝花钢钒有限公司 | Universal mill memorial archway mounting tool and installation method |
| CN104624654A (en) * | 2014-12-31 | 2015-05-20 | 中国二冶集团有限公司 | Construction method for installation of puncher frame structure |
| CN104741384A (en) * | 2015-03-27 | 2015-07-01 | 山东钢铁股份有限公司 | Temporary substitute device for rolls of continuous rolling mill unit |
| CN106140821B (en) * | 2015-04-01 | 2018-07-13 | 上海宝冶集团有限公司 | Milling train tilts and the bearing calibration of skew |
| CN106140821A (en) * | 2015-04-01 | 2016-11-23 | 上海宝冶集团有限公司 | Milling train tilts and the bearing calibration of skew |
| CN106140831A (en) * | 2015-04-01 | 2016-11-23 | 上海宝冶集团有限公司 | Milling train tilts and the correction locating measurement method of skew |
| CN106140831B (en) * | 2015-04-01 | 2018-07-13 | 上海宝冶集团有限公司 | Milling train tilts and the correction locating measurement method of skew |
| CN104923565A (en) * | 2015-05-25 | 2015-09-23 | 中冶天工集团有限公司 | Method for simulating fastening state of rolling mill frame |
| CN104923565B (en) * | 2015-05-25 | 2021-08-10 | 中冶天工集团有限公司 | Method for simulating fastening state of rolling mill frame |
| CN107282641A (en) * | 2016-04-05 | 2017-10-24 | 五冶集团上海有限公司 | A kind of parallels construction method of Bar Wire Product vertical mill base |
| CN107282641B (en) * | 2016-04-05 | 2019-07-30 | 五冶集团上海有限公司 | A kind of parallels construction method of Bar Wire Product vertical mill pedestal |
| CN106238462B (en) * | 2016-07-26 | 2018-08-07 | 天津天重中直科技工程有限公司 | A kind of cantilevered vertical miller |
| CN106238462A (en) * | 2016-07-26 | 2016-12-21 | 天津天重中直科技工程有限公司 | A kind of cantilevered vertical miller |
| CN109530445A (en) * | 2018-10-29 | 2019-03-29 | 上海二十冶建设有限公司 | A kind of mill housing top platform modularization method for rapidly mounting |
| CN110508621A (en) * | 2019-10-09 | 2019-11-29 | 南通瑞格精密机械有限公司 | High-accuracy rod-rolling mill method of manufacturing technology |
| CN112547801A (en) * | 2020-11-17 | 2021-03-26 | 十四冶建设集团云南安装工程有限公司 | High-precision ultrathin aluminum foil mill unit mounting method |
| CN113680826A (en) * | 2021-07-20 | 2021-11-23 | 宣化钢铁集团有限责任公司 | Maintenance method for vertical roll box of vertical rolling mill |
| CN113877966A (en) * | 2021-09-10 | 2022-01-04 | 上海二十冶建设有限公司 | Installation method of large-scale perforating machine in limited space |
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|---|---|
| CN101391267B (en) | 2010-12-01 |
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