CN112547801B - High-precision ultrathin aluminum foil rolling mill set installation construction method - Google Patents
High-precision ultrathin aluminum foil rolling mill set installation construction method Download PDFInfo
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- CN112547801B CN112547801B CN202011283154.8A CN202011283154A CN112547801B CN 112547801 B CN112547801 B CN 112547801B CN 202011283154 A CN202011283154 A CN 202011283154A CN 112547801 B CN112547801 B CN 112547801B
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- 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
- B21B1/40—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 foils which present special problems, e.g. because of thinness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
- B21B31/06—Fastening stands or frames to foundation, e.g. to the sole plate
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a high-precision ultrathin aluminum foil rolling mill set installation construction method, which comprises the following steps of: s1: and the foundation is handed over for acceptance, acceptance data for confirming that the foundation has installation conditions are collected, and when the foundation is accepted, according to completion drawings and technical data provided by civil engineering units, the outline dimension, the center line, the elevation, the perpendicularity, the levelness and the pre-buried foundation bolts and the reserved holes of the foundation are carefully retested according to drawings, and the installation points of the rolling mill set are required to be subjected to pre-compaction test before the rolling mill set is installed. The invention adopts high-precision measuring instruments such as a micrometer rod, a high-precision level gauge, a frame-type level gauge and the like to measure, thereby ensuring the installation precision of the unit; reasonable installation sequence is selected, measurement of units and adjustment of unit installation accuracy are facilitated, shape and position errors among the units are guaranteed, unit installation accuracy is improved, construction safety is guaranteed, construction period is short, hoisting cost is low, engineering passes inspection and acceptance once, and the method has wide application prospect.
Description
Technical Field
The invention relates to the technical field of aluminum foil rolling mill set installation, in particular to a high-precision ultrathin aluminum foil rolling mill set installation construction method.
Background
The aluminum foil roughing mill is a device for rolling an aluminum plate coil with the feed of less than 0.5mm in several passes to change the aluminum plate coil into an aluminum foil with the thickness of more than 2X 0.0045mm, and the aluminum foil rolling has three conditions for fire or explosion: combustible materials such as rolling oil, cotton yarn, rubber tube, etc.; combustion-supporting substances, namely oxygen in the air; the fire source and high temperature such as friction, electric spark, static electricity, open flame, etc. The lack of any one of the conditions will not burn or explode. Oil vapor generated in high-speed aluminum foil rolling and oxygen in air are unavoidable, so that the high-speed aluminum foil rolling mill is critical for safety and fire prevention, and how to eliminate high temperature generated by fire sources and local overheating.
In the prior art, the aluminum foil rolling mill set has lower installation precision, larger precision error among the sets and higher installation cost, so the installation construction method of the high-precision ultrathin aluminum foil rolling mill set is provided for solving the problem.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a high-precision ultrathin aluminum foil rolling mill set installation method.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the high-precision ultrathin aluminum foil rolling mill set installation construction method comprises the following steps of:
s1: the foundation is handed over and accepted, acceptance data for confirming that the foundation has installation conditions are collected, and the external dimension, the central line, the elevation, the verticality, the levelness, the pre-buried foundation bolts and the reserved holes of the foundation are carefully retested according to completion drawings and technical data provided by civil engineering units during acceptance of the foundation;
s2: before the rolling mill set is installed, a pre-pressing test is required to be carried out on the installation point of the rolling mill set, settlement observation points and detailed settlement observation records are set, the observation points are installed at four points uniformly distributed around the installation point of the rolling mill set, the observation should be timed and recorded in detail, and the observation time is up to the point that the settlement of the installation point is basically stable;
s3: measuring and paying off, drawing a mounting longitudinal central line and a transverse central line on a foundation surface after the foundation is inspected and accepted, drawing a horizontal datum line on the side surface of a foundation point, and burying a central standard plate and an elevation standard plate;
s4: the method comprises the steps of installing a base of a rolling mill, drawing a backing plate position line on the basis of a housing and a base according to a drawing, installing a longitudinal center line and a transverse center line, wherein a flat backing iron is required to be used for installing a rolling mill set, the upper surface of the used backing iron is required to be processed by a grinding machine, the processing precision of the flat backing iron is required to meet the requirements, an ear plate is welded and adjusted before the backing iron is installed, after the backing iron is installed and adjusted, the backing iron is inspected and accepted to be qualified, high-strength non-shrink self-leveling grouting material is used for grouting, sundries such as greasy dirt, soil and the like cannot be contained on the lower surfaces of a foundation and equipment during grouting, the foundation surface is thoroughly and comprehensively wetted by a compressed air gun, the foundation surface is fully and comprehensively wetted by sprinkling water for 6-12 hours before grouting, accumulated water is blown by compressed air before grouting, and a template and a foundation joint is tightly stitched by cement paste, adhesive tape and the like, so that the whole template is not leaked;
s5: the base is installed, a housing frame installation center is firstly marked on the base, then a base center line is marked according to the housing frame center line, the foundation bolts penetrate into lower holes of the foundation, all the foundation bolts are turned right and temporarily clamped through the direction of a pre-calibrated T-shaped head, a group of oblique sizing blocks are placed on each backing plate, the base is hung to be about 1.5m away from the ground, a contact surface is cleaned, the base is hoisted in place, a corresponding spacer bush is added between the foundation bolts and the base holes, the same gap between the foundation bolts and the base holes and the perpendicularity of the foundation bolts are ensured after the foundation bolts are irrigated, the heights of exposed parts of the bolts and the base are measured by using a tape measure, the center and the levelness of the base are adjusted by using oblique sizing blocks below the jack and the base to meet the design and standard requirements, the deviation between the center lines of the two bases and the reference line is not more than +/-1.0 mm, the deviation between the two bases is not more than 0.5mm by using a high precision level meter and the 4m leveling meter and the frame level meter;
s6: the method comprises the steps of installing a housing frame, determining 75 ton crane in a factory building to serve as hoisting equipment according to the arrangement condition of hoisting equipment in the factory building, the height of the factory building, the weight of the housing frame and the height parameters, and hoisting the housing frame into position by using the hoisting equipment to pocket two tubular lifting lugs of the housing frame;
s7: after the two housing frames are lifted in place, the top connecting beam is firstly installed in place, the two housing frames are connected into a stable system, a steel wire with the diameter of 0.4mm is hung at the height position of a rolling line to form a longitudinal central line, the positions of the housing frames are adjusted by two 16-ton thousand-top, the center offset and skew deviation of the two housing frames are checked by a micrometer rod, the perpendicularity and the levelness of the housing frames reach the standard allowable deviation by adjusting the inclined pad iron below a trimming base, the contact gap between the housing frames and the top surface of the base is checked by a clearance gauge, the perpendicularity of the housing frames in two directions is checked by a hanging line method, the water height and the height difference of an upper cylinder supporting surface in a window of the two housing frames are measured by a high-precision level gauge, a 4-m flat gauge and a frame-type level gauge, the error exceeds standard, the precision of the two housing frames can reach the standard by repeating the adjustment and checking steps, the requirements of the two housing frames reach the design and the standard requirements by the inclined pad iron below the base, and the two housing frames are installed at the two sides of the base after the two housing frames are fixed by a spot welding method, and the two base is fixed;
s8: correcting a rolling mill set, namely correcting a coiling machine to a certain height, adjusting the coiling machine by using a flat base plate, wherein the base of the coiling machine needs to be absolute level, determining that all bolts need to be screwed with the same moment during adjustment, adjusting the elevation and the level of the base of the coiling machine by using 2 embedded hydraulic jacks, and observing whether the coiling machine moves or not by using a dial gauge during adjustment;
s9: the method comprises the steps of installing a rolling mill set, drawing the installation position of each backing plate on a foundation according to the size of a foundation bolt hole of an uncoiler, the longitudinal center line of the uncoiler and the longitudinal center line of a machine array, welding 3 square lug plates with the diameter of 40 multiplied by 40/phi 16 on 3 sides of each flat gasket iron, marking the foundation according to the lug plate holes, punching an M12 expansion sleeve installation hole, installing a screw rod with corresponding length according to the re-measured foundation elevation, fixing each lug plate by using 2 nuts, controlling the flat gasket iron to the installation elevation by using a level gauge, controlling the longitudinal and transverse levelness of the backing plate by using a square frame level gauge, pouring the backing plate by using grouting materials, hanging the longitudinal center line of the machine array and the longitudinal center line of the uncoiler by using a steel wire with the diameter of 0.4mm, adjusting the longitudinal and transverse center of the uncoiler by using a jack, adjusting the elevation of the uncoiler to the designed height by using the inclined gasket iron, pulling the foundation bolt, and repeatedly trimming the inclined gasket iron, the foundation nut and the host machine to horizontally offset, so that the center, the outer side of a coiling shaft, the coiling and the coiling machine can reach the design requirements.
Preferably, the pre-load weight of the basic pre-load test is 1.2 times the total weight of the mill train.
Preferably, the mounting longitudinal and transverse centerlines have no greater than 0.5mm from the horizontal reference line, and the base transverse centerline spacing error is not allowed to exceed 1mm.
Preferably, the sizing block mounting method is an adjustable bolt sizing block mounting method, firstly, a sizing block is fixed on a foundation by using a chemical anchor bolt, the level of the sizing block is adjusted by adjusting a nut, the mounting elevation error is +/-0.5 mm, the levelness of the sizing block is checked by using a frame level meter, the elevation is checked by using N3 and a matched indium steel ruler, and the top surface of the sizing block is used as a standard during the checking.
Preferably, the grouting height is about 10mm of the bottom surface of the submerged seat slurry flat pad iron, the equipment can be installed after grouting for 12 hours, and the equipment can be adjusted after 24 hours.
Preferably, the hoisting uses hot rolled H-shaped steel with H200 x 8 x 14 to manufacture the hoisting beam, and 2 fiber core steel wires with phi 40mm 6 x 37 (1770 Mpa) are used for hoisting.
Preferably, the hanging of the centre line is achieved with a lead weight and a steel wire.
Preferably, the reel measurement control method is to manufacture a swinging rod by using angle steel with L50 being 5, fasten the swinging rod on the reel by using a hoop, and measure 4 points of the reel by adopting a swinging rod beating mode, thereby controlling the center line of the uncoiler and the outward swinging and the upward lifting of the reel to meet the design and specification requirements.
Compared with the prior art, the invention has the following advantages:
1. the invention adopts high-precision measuring instruments such as a micrometer rod, a high-precision level gauge, a frame-type level gauge and the like to measure, thereby ensuring the installation precision of the unit; reasonable installation sequence is selected, measurement of units and adjustment of unit installation accuracy are facilitated, shape and position errors among the units are guaranteed, unit installation accuracy is improved, construction safety is guaranteed, construction period is short, hoisting cost is low, engineering passes inspection and acceptance once, and the method has wide application prospect.
2. The invention saves the management cost and labor cost of the whole project, reduces the cost of the project, ensures the project to be completed on schedule, ensures the project to be put into production on schedule, shortens the construction time of the project, has good operation since the project is put into operation, not only creates better economic benefit, but also brings better social benefit.
Detailed Description
The high-precision ultrathin aluminum foil rolling mill set installation construction method comprises the following steps of:
s1: the foundation is handed over and accepted, acceptance data for confirming that the foundation has installation conditions are collected, and the external dimension, the central line, the elevation, the verticality, the levelness, the pre-buried foundation bolts and the reserved holes of the foundation are carefully retested according to completion drawings and technical data provided by civil engineering units during acceptance of the foundation;
s2: before the rolling mill set is installed, a pre-compaction test is required to be carried out on the installation point of the rolling mill set, settlement observation points and detailed settlement observation records are set, the observation points are installed at four points uniformly distributed around the installation point of the rolling mill set, the observation should be timed and recorded in detail, the observation time is up to the time that the settlement of the installation point is basically stable, and the pre-compaction weight of the basic pre-compaction test is 1.2 times of the total weight of the rolling mill set;
s3: measuring and paying off, after the foundation is inspected and accepted, drawing a mounting longitudinal central line and a transverse central line on a foundation surface, drawing a horizontal datum line on the side surface of a foundation point, burying a central standard plate and an elevation standard plate, wherein the errors of the mounting longitudinal central line, the transverse central line and the horizontal datum line are not more than 0.5mm, and the interval error of the transverse central line of the foundation is not allowed to exceed 1mm;
s4: the method comprises the steps of installing a base of a rolling mill, drawing a backing plate position line on the basis of a housing and a base according to drawings, installing a longitudinal center line and a transverse center line, wherein flat backing irons are used for the sizing block used for installing the rolling mill set, the upper surface of the used backing irons is required to be processed by a grinding machine, the processing precision of the flat backing irons is required to meet the requirements, an adjusting ear plate is welded before the sizing block is installed, after the sizing block is installed and adjusted, the sizing block installation method is an adjustable bolt seat slurry method, firstly, the seat slurry backing iron is fixed on a foundation by using a chemical anchor bolt, the level of the backing iron is adjusted by using an adjusting nut, the installation elevation error is +/-0.5 mm, the level of the backing iron is checked by using a frame type level meter, the elevation is checked by using N3 and a matched indium steel ruler, the top surface of the backing iron is used as a standard in the checking, after the checking is qualified, the backing iron is in the high-strength shrinkage-free-flowing grouting slurry, the grouting height is about 10mm to submerge the bottom surface of the flat backing iron, the grouting is carried out for 12 hours, the equipment is installed after the grouting, the equipment is adjusted after 24 hours, the foundation surface and the equipment is required to be wet, the water is not polluted, the foundation surface and the air is full-sealed, the cement is fully blown down, the cement is full, the cement is fully wet by using a compressed air, the compressed air and the sealing template is fully flushed, and the sealing is required to be 1;
s5: the method comprises the steps of firstly, marking a housing frame installation center on a base, then marking a base center line according to the housing frame center line, penetrating anchor bolts into lower holes of the anchor bolts, correcting and temporarily clamping all the anchor bolts through the pre-calibrated T-shaped head direction, placing a group of oblique sizing blocks on each backing plate, hoisting the base to about 1.5m from the ground, hoisting a hanging beam by using hot rolled H-shaped steel with the H200 x 14, hoisting a fiber core steel wire rope with the H200 x 40mm 6 x 37 (1770 Mpa), cleaning a contact surface, hoisting the base into place, adding corresponding spacers between the anchor bolts and the base holes, ensuring that the clearance between the anchor bolts and the base holes is the same after the anchor bolts are irrigated, measuring the heights between exposed parts of the anchor bolts and the base by using a tape measure, adjusting the centers and the heights of the base to reach the design and standard requirements by using oblique sizing blocks under the jack and the base, and measuring the error between the two base center lines and the horizontal plane is not greater than +/-1.0 mm, and the error between the two base and the base is not greater than the standard level of a 4mm and not greater than 0.05mm;
s6: the method comprises the steps of installing a housing frame, determining 75 ton crane in a factory building to serve as hoisting equipment according to the arrangement condition of hoisting equipment in the factory building, the height of the factory building, the weight of the housing frame and the height parameters, and hoisting the housing frame into position by using the hoisting equipment to pocket two tubular lifting lugs of the housing frame;
s7: after the two housing frames are lifted in place, the top connecting beams are firstly installed in place, the two housing frames are connected into a stable system, a steel wire with the diameter of 0.4mm is hung at the height position of a rolling line to form a longitudinal central line, the hanging central line is realized by using lead weights and steel wires, the positions of the housing frames are adjusted by two 16-ton kilotops, the center offset and skew deviation of the two housing frames are checked by using a micrometer rod, the verticality and the levelness of the housing frames are enabled to be within standard allowable deviation by adjusting a bevel iron below a trimming base, the contact gap between the housing frames and the top surface of the base is checked by using a feeler gauge, the verticality of the two housing frames is checked by using a hanging line method, the water height and the height difference of an upper cylinder supporting surface in a window of the two housing frames are measured by using a high precision level gauge, a 4m flat gauge and a frame level gauge, the error exceeds standard, the standard can be achieved by fine trimming the bevel iron below the base, the housing frames are enabled to reach standard, the standard is achieved by repeating the adjustment and the checking steps, the requirements of the housing frames and the design and the top frame is required to be installed at the two sides and the top of the base is fixed for grouting;
s8: correcting a rolling mill set, namely correcting a coiling machine to a certain height, adjusting the coiling machine by using a flat base plate, wherein the base of the coiling machine needs to be absolute level, determining that all bolts need to be screwed with the same moment during adjustment, adjusting the elevation and the level of the base of the coiling machine by using 2 embedded hydraulic jacks, and observing whether the coiling machine moves or not by using a dial gauge during adjustment;
s9: the installation of a rolling mill set, drawing the installation position of each backing plate on the basis according to the size of a foundation bolt hole of an uncoiler, the longitudinal center line of the uncoiler and the longitudinal center line of a machine array, welding 3 square lug plates with the diameter of 40 multiplied by 40/phi 16 on 3 sides of each flat iron, marking on the basis according to the hole position of each lug plate, marking an installation hole of an M12 expansion sleeve, installing a screw rod with corresponding length according to the re-measured basic elevation, fixing each lug plate by 2 nuts, controlling the flat iron to the installation elevation by using a level gauge, controlling the longitudinal and transverse levelness of the backing plate by using a square frame level gauge, pouring the backing plate by using grouting materials, hanging the longitudinal center line of the machine array and the longitudinal center line of the uncoiler by using steel wires with the diameter of 0.4mm, the method for hanging the steel wire is the same as the hanging method in the installation of the memorial archway frame, the longitudinal and transverse centers of the uncoiler are aligned by utilizing a jack, the elevation of the uncoiler is adjusted to the design height by utilizing an inclined iron pad, the foundation bolt is pulled up, the center, the outward swing and the upward swing of the coiling shaft are enabled to meet the design requirements by repeatedly fine-adjusting the inclined iron pad, the foundation nut and the horizontal offset of a host machine, the coiling machine is poured, the coiling shaft measurement control method is that an oscillating bar is manufactured by using angle steel with the L50 x 5, the hoop is fastened on the coiling shaft in a locking manner, and 4 points of the coiling shaft are measured by adopting the way of beating the oscillating bar, so that the center line of the uncoiler and the outward swing and the upward swing of the coiling shaft are controlled to meet the design and standard requirements.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art who is skilled in the art should make equivalent substitutions or modifications according to the technical scheme of the present invention within the scope of the present invention.
Claims (5)
1. The high-precision ultrathin aluminum foil rolling mill set installation construction method is characterized by comprising the following steps of:
s1: the foundation is handed over and accepted, acceptance data for confirming that the foundation has installation conditions are collected, and the external dimension, the central line, the elevation, the verticality, the levelness, the pre-buried foundation bolts and the reserved holes of the foundation are carefully retested according to completion drawings and technical data provided by civil engineering units during acceptance of the foundation;
s2: before the rolling mill set is installed, a pre-pressing test is required to be carried out on the installation point of the rolling mill set, settlement observation points and detailed settlement observation records are set, the observation points are installed at four points uniformly distributed around the installation point of the rolling mill set, the observation should be timed and recorded in detail, and the observation time is up to the point that the settlement of the installation point is basically stable; wherein, the pre-pressing weight of the basic pre-pressing test is 1.2 times of the total weight of the rolling mill;
s3: measuring and paying off, drawing a mounting longitudinal central line and a transverse central line on a foundation surface after the foundation is inspected and accepted, drawing a horizontal datum line on the side surface of a foundation point, and burying a central standard plate and an elevation standard plate;
s4: the method comprises the steps of installing a base of a rolling mill, drawing a backing plate position line on the basis of a housing and a base according to a drawing, installing a longitudinal center line and a transverse center line, wherein a flat backing iron is required to be used for installing a rolling mill set, a grinding machine is required to be used for processing the upper surface of the used backing iron, the processing precision of the flat backing iron is required to meet the requirements, an ear plate is welded and adjusted before the backing iron is installed, after the backing iron is installed and adjusted, the backing iron is inspected and accepted to be qualified, high-strength non-shrink self-leveling grouting material is used for grouting, oil stains and earth impurities cannot exist on the lower surfaces of a foundation surface and equipment during grouting, the foundation surface is purged once by a compressed air gun, the foundation surface is fully and comprehensively wetted by sprinkling water for 6-12 hours before grouting, accumulated water is blown by compressed air for 1 hour before grouting, and a template and a foundation joint are respectively stitched and stuck tightly, so that the whole template is watertight; the mounting method of the sizing block is an adjustable bolt sizing block method, firstly, the sizing block is fixed on a foundation by using a chemical anchor bolt, the level of the sizing block is adjusted by adjusting a nut, the mounting elevation error is +/-0.5 mm, the levelness of the sizing block is checked by using a frame level meter, the elevation is checked by using an N3 high-precision level meter and a matched indium steel ruler, and the top surface of the sizing block is used as a reference during the checking; the grouting height is about 10mm of the bottom surface of the submerged seat slurry flat pad iron, equipment can be installed after grouting for 12 hours, and the equipment can be adjusted after 24 hours;
s5: the base is installed, a housing frame installation center is firstly marked on the base, then a base center line is marked according to the housing frame center line, the foundation bolts penetrate into lower holes of the foundation, all the foundation bolts are turned right and temporarily clamped through the direction of a pre-calibrated T-shaped head, a group of oblique sizing blocks are placed on each backing plate, the base is hung to be about 1.5m away from the ground, a contact surface is cleaned, the base is hoisted in place, a corresponding spacer bush is added between the foundation bolts and the base holes, the same gap between the foundation bolts and the base holes and the perpendicularity of the foundation bolts are ensured after the foundation bolts are irrigated, the heights of exposed parts of the bolts and the base are measured by using a tape measure, the center and the levelness of the base are adjusted by using oblique sizing blocks below the jack and the base to meet the design and standard requirements, the deviation between the center lines of the two bases and the reference line is not more than +/-1.0 mm, the deviation between the two bases is not more than 0.5mm by using a high precision level meter and the 4m leveling meter and the frame level meter;
s6: the method comprises the steps of installing a housing frame, determining 75 ton crane in a factory building to serve as hoisting equipment according to the arrangement condition of hoisting equipment in the factory building, the height of the factory building, the weight of the housing frame and the height parameters, and hoisting the housing frame into position by using the hoisting equipment to pocket two tubular lifting lugs of the housing frame;
s7: after the two housing frames are lifted in place, the top connecting beam is firstly installed in place, the two housing frames are connected into a stable system, a steel wire with the diameter of 0.4mm is hung at the height position of a rolling line to form a longitudinal central line, the positions of the housing frames are adjusted by two 16-ton thousand-top, the center offset and skew deviation of the two housing frames are checked by a micrometer rod, the perpendicularity and the levelness of the housing frames reach the standard allowable deviation by adjusting the inclined pad iron below a trimming base, the contact gap between the housing frames and the top surface of the base is checked by a clearance gauge, the perpendicularity of the housing frames in two directions is checked by a hanging line method, the water height and the height difference of an upper cylinder supporting surface in a window of the two housing frames are measured by a high-precision level gauge, a 4-m flat gauge and a frame-type level gauge, the error exceeds standard, the precision of the two housing frames can reach the standard by repeating the adjustment and checking steps, the requirements of the two housing frames reach the design and the standard requirements by the inclined pad iron below the base, and the two housing frames are installed at the two sides of the base after the two housing frames are fixed by a spot welding method, and the two base is fixed;
s8: correcting a rolling mill set, namely correcting a coiling machine to a certain height, adjusting the coiling machine by using a flat base plate, wherein the base of the coiling machine needs to be absolute level, determining that all bolts need to be screwed with the same moment during adjustment, adjusting the elevation and the level of the base of the coiling machine by using 2 embedded hydraulic jacks, and observing whether the coiling machine moves or not by using a dial gauge during adjustment;
s9: the method comprises the steps of installing a rolling mill set, drawing the installation position of each backing plate on a foundation according to the size of a foundation bolt hole of an uncoiler, the longitudinal center line of the uncoiler and the longitudinal center line of a machine array, welding 3 square lug plates on 3 sides of each flat iron, marking on the foundation according to lug plate holes, punching M12 expansion sleeve installation holes, installing screws with corresponding lengths according to the re-measured foundation elevation, fixing each lug plate by using 2 nuts, controlling the flat iron to the installation elevation by using a level gauge, controlling the longitudinal and transverse levelness of the backing plate by using a square box level gauge, pouring the backing plate by using grouting materials, hanging the longitudinal center line of the machine array and the longitudinal center line of the uncoiler by using steel wires with the diameter of 0.4mm, adjusting the longitudinal and transverse centers of the uncoiler by using a jack, adjusting the elevation of the uncoiler to the design height by using the inclined iron, pulling the foundation bolt, and repeatedly trimming the inclined iron, the foundation nuts and the host machine horizontally offset, so that the center, the outer swing and the lifting of the reel reach design requirements, and pouring the coiling machine.
2. The method for installing a high-precision ultrathin aluminum foil mill train according to claim 1, wherein the errors of the installation longitudinal center line and the horizontal reference line are not more than 0.5mm, and the interval error of the basic horizontal center line is not allowed to exceed 1mm.
3. The method for installing the high-precision ultrathin aluminum foil mill train according to claim 1, wherein the hoisting is carried out by adopting hot-rolled H-shaped steel to manufacture a hanging beam and 2 fiber core steel wires are used for hoisting.
4. The method for installing a high-precision ultrathin aluminum foil mill set according to claim 1, wherein the hanging of the center line is realized by using lead weights and steel wires.
5. The method for installing the high-precision ultrathin aluminum foil rolling mill set according to claim 1, wherein the method for controlling the measurement of the reel is characterized in that angle steel is used for manufacturing a swinging rod, a hoop is used for fastening the swinging rod on the reel, 4 points of the reel are measured in a swinging rod beating mode, and therefore the center line of an uncoiler and the outward swinging and the upward lifting of the reel are controlled to meet design and specification requirements.
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| CN202011283154.8A CN112547801B (en) | 2020-11-17 | 2020-11-17 | High-precision ultrathin aluminum foil rolling mill set installation construction method |
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| CN202011283154.8A CN112547801B (en) | 2020-11-17 | 2020-11-17 | High-precision ultrathin aluminum foil rolling mill set installation construction method |
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| CN112547801A CN112547801A (en) | 2021-03-26 |
| CN112547801B true CN112547801B (en) | 2023-07-14 |
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