CN102514302B - Laminated metal plate as well as production method and production device thereof - Google Patents
Laminated metal plate as well as production method and production device thereof Download PDFInfo
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- CN102514302B CN102514302B CN201110378435.6A CN201110378435A CN102514302B CN 102514302 B CN102514302 B CN 102514302B CN 201110378435 A CN201110378435 A CN 201110378435A CN 102514302 B CN102514302 B CN 102514302B
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Abstract
The invention discloses a laminated metal plate as well as a production method and a production device thereof. The laminated metal plate comprises a metal plate and a polyester film laminated on the surface of the metal plate, wherein an adhesive is not arranged between the metal plate and the polyester film. The laminated metal plate production method comprises the following steps: heating the metal plate to realize that the temperature of the metal plate is higher than the melting point of the polyester film; applying mechanical pressure to the polyester film by virtue of a lamination device so as to cover the polyester film on the metal plate; enabling one side, close to the metal plate, of the polyester film to be molten and the other side, far from the metal plate, of the polyester film to be not molten; and rapidly cooling the metal plate laminated by the polyester film to obtain the laminated metal plate. The laminated metal plate can be used for overcoming a plurality of defects of the prior art, and realizing no adhesive, safety, environmental friendliness, strong adhesion and strong corrosion resistance, and can be directly used in food package; the production process is simple ad practical; and the production device meets the requirement of industrial production.
Description
Technical field
The present invention relates to material technology, relate in particular to a kind of film-covered metal plate, production method and process units thereof.
Background technology
Along with the variation of technical development, consumption idea and fashion, competition in packaging material between metal, plastics, paper and glass, and the feature such as metal packing material is hard with its good leak tightness, quality, good springiness, resistance photosensitiveness are good and gas barrier property is good is occupied critical role at packaging field always.
Tin plate, as the important component part of metal packing material, has important role in fields such as food, beverage, inhalator jar and chemical tanks.But because tin is a kind of main strategic resource, price is more expensive, and resource is day by day exhausted, and film-covered metal plate is as a kind of product that can substitute tin plate, more and more by people are paid close attention to.
For example film-covered iron of film-covered metal plate be cold-reduced sheet/chromium plating iron two sides cover on mylar (thickness is about 15～25 μ m), is a kind of Metallic Functional Materials that has plastic sheeting and sheet metal dual characteristics concurrently.Can avoid dissolving the metal and causing from metallic plate the generation that taste deterioration, local flavor degenerate, content goes bad and bores a hole of food in tank or beverage.
Traditional film-covered metal plate manufacturing process is low temperature adhesion technique, uses adhesive under low temperature environment, to make metallic plate and polyester film be bonded, and the precoated metal panel products of producing by this kind of method, has following several respects shortcoming:
1, low temperature adhesion technique is by binding agent, metallic plate and polyester film to be combined with each other, in compound process, binding agent is in the time drying, have solvent evaporates, this not environmental protection of process, unstable, the precoated metal panel products of producing cannot be directly and Food Contact, and this type of precoated metal panel products is only for non-food stuff tank industries such as chemical industry;
2, in traditional film-covered metal plate, the laminating degree of metallic plate and polyester film is weak, adhesive force is little, causes resistance to punching, corrosion-resistant;
3, traditional precoated metal plate producing process, is subject to the impact of environment temperature, humidity larger, and technique is unstable, and product stability is poor;
4, low temperature adhesion explained hereafter efficiency is lower, and cost is high.
Summary of the invention
The invention provides a kind of film-covered metal plate, in order to solve defect of the prior art, implementation structure is simple, nontoxic, can be widely used in packaging for foodstuff industry.
The invention provides a kind of film-covered metal plate, comprise metallic plate and be coated on its surperficial polyester film, adhesive-free between described metallic plate and polyester film.Described metallic plate can be selected from the common metal in mental package field, as steel plate, chrome plating, aluminium alloy plate etc.
Polyester film of the present invention can adopt the polyester film described in Chinese Patent Application No. 200910259903.0 (tunica albuginea) or 200910223570.6 (hyaline membranes), the film-covered metal plate that adopts above-mentioned polyester film to produce has strong adhesion, the advantage of resistance to boiling.
Another object of the present invention is the production method that above-mentioned film-covered metal plate is also provided, to realize the advantage that production efficiency is high, production cost is low.
The production method of above-mentioned film-covered metal plate, comprises the following steps:
By metallic plate heating, make the temperature of metallic plate greater than or equal to the fusing point of polyester film; By film covering device, polyester film is applied to mechanical pressure, polyester film is covered on metallic plate; Described polyester film melts near metallic plate one side, does not melt away from metallic plate one side; Then the sharply cooling film-covered metal plate that obtains of metallic plate of polyester film will be coated with.The metallic plate temperature of described heating is greater than or equal to the fusing point (fusing point of general adopted polyester film is 200-300 DEG C) of polyester film, under the pressure-acting of overlay film roller, and polyester film and metallic plate pressing.Polyester film, arrives after fusing point by the temperature transmission of metallic plate near a side of metallic plate, and fusing, is compound on metallic plate, and polyester film does not reach fusing point away from an other side of metallic plate, and not fusing becomes film-covered metal plate after cooling.
Further, before described metallic plate heating, remove surperficial oil stain through alkali cleaning, washing, to ensure the clean of metallic plate.
Further, when described polyester film covers on the metallic plate of heating, on polyester film, there is the tension force of 80-100 ox, this closed-loop tension control, polyester film is process film-spreading roller under the condition that has tension force, can ensure that polyester film covers the smoothness before metallic plate, be difficult for producing ripple, and then ensure the quality of film-covered metal plate.
Further, described metallic plate heating successively adopts resistance heated and eddy-current heating.Induction heating equipment is conventional equipment, both can purchase commercially available equipment, also can designed, designed.
Further, the transfer rate of described metallic plate in heating process do not limit, and is optionally 20-60m/min, preferably 40-50m/min, and this transfer rate can ensure heating and the overlay film effect of metallic plate.
Further, described overlay film can be unidirectional overlay film and also can be two-way overlay film, and preferably two-way overlay film covers polyester film in metallic plate both sides simultaneously.Described film covering device comprises overlay film roller, and described overlay film roller is two, and one is fixed roll, another is action roller.
Further, it is 6-12kg/mm that described film covering device applies linear pressure to polyester film, and optional linear pressure is 6-7kg/mm.
Further, be describedly sharply cooled to temperature per minute and reduce by 70～80 DEG C.Sharply coolingly adopt air-cooled and/or water-cooled.
Further, obtain after film-covered metal plate cooling, described film-covered metal plate is rolled into and is convenient to storage and transport.
Another object of the present invention has been to provide the process units of realizing above-mentioned precoated metal plate producing process, with realize film-covered metal plate continuously, fast produce.
The process units of film-covered metal plate, comprising: the gateway unit, cleaning unit, heating unit, overlay film unit, cooling unit and the outlet port unit that set gradually according to metallic plate direction of transfer.Described gateway unit launches metallic plate; Described cleaning unit washes the foreign matter of metal sheet surface, and described foreign matter comprises that grease, dust etc. affect the material of overlay film effect; Described heating unit heats metallic plate; Described overlay film unit, overlays on polyester film on metallic plate; Described cooling unit carries out cooling to film-covered metal plate; Film-covered metal plate is rolled into volume by described rolling unit.
Described gateway unit for by metallic plate launch, make metallic plate along process route steadily, smoothly operation.Described gateway unit comprises the uncoiler, pinch roll, welding machine and the slewing rollers that arrange in turn along metallic plate direction of transfer.Metal plate coils (as coil of strip) is positioned on uncoiler, and by auxiliary pinch roll, slewing rollers launch metal plate coils;
Described cleaning unit is for the oil stain on clean metal plate surface, and described cleaning unit comprises the alkali cleaning equipment, washing equipment, squeezing apparatus and the drying plant that arrange in turn along metallic plate direction of transfer.Metal plate coils, after gateway unit launches, enters cleaning unit, because metal sheet surface exists oil stain (if coil of strip is that chrome plating surface has grease, to pass through ungrease treatment), under the effect of alkali wash water, the oil stain of described metal sheet surface is removed, then carry out spray washing, under the effect of squeezing apparatus (as squeeze roll), the water of described metal sheet surface is extracted, and enters drying plant, guarantees that metallic plate is after cleaning unit, surface cleaning, dry.
Described heating unit comprises the resistance heated and the eddy-current heating that arrange in turn according to metallic plate direction of transfer, and described eddy-current heating is supplementing resistance heated.Described resistance heating device is two groups of conductive rollers, between two groups of conductive rollers, is also provided with attemperator, and to ensure that the metallic plate temperature between conductive rollers is difficult for running off, described attemperator is optionally Muffle furnace.Described resistance heated be metallic plate with 20-60m/min (preferably 45m/min) service condition under, the metallic plate between two conductive rollers is heated.The temperature that in resistance heated process, metallic plate can reach is subject to the impact of environment, attemperator, is not easy to control, and resistance heated power should be moderate, and power is too high, and metallic plate can be out of shape, and metallic plate speed is too low, and metallic plate also can be out of shape.Adopting eddy-current heating is the supplementary and adjusting to resistance heated, and after guarantee metallic plate passes through eddy-current heating, temperature increase is to preset value.Described preset value is 240-260 DEG C, is optionally 245-265 DEG C.For different polyester films, its fusing point is different, only needs to adjust heating-up temperature metallic plate is heated to polyester film fusing point.
Described overlay film unit for pasting polyester film to obtain film-covered metal plate to metallic plate under adhesive-free condition, and described equipment for coating film at least comprises that overlay film unit and pressure provide unit; Wherein said overlay film unit forms by inner hollow and with overlay film roller and the auxiliary chill roll of cooling fluid system connectivity, and described cooling fluid system can be cooling water, for cooling overlay film roller and auxiliary chill roll; Described overlay film roller comprises fixed roll and action roller, and can provide the overlay film of realization to metallic plate under unit drives at pressure, described auxiliary chill roll is at least two, be arranged at respectively the outside of fixed roll and action roller and form expansion clearance, when described expansion clearance is set to fixed roll and action roller expanded by heating, just contacting with auxiliary chill roll; Described fixed roll and action roller surface be the glue-line through polishing with surface all, and described auxiliary chill roll has the surface through mirror process.
Described cooling unit comprises the air cooler, water cooling equipment and the drying plant that arrange in turn along metallic plate direction of transfer.When film-covered metal plate first product promptly enters cooling unit, first through air cooler, a part of heat is taken away, then enter water cooling equipment.Described air cooler adopts airduct, and described water-cooled adopts water-cooling groove, and film-covered metal plate first product enters rapid cooling after water-cooling groove, the compound of metallic plate and polyester film reaches stable, in described water-cooling groove, be connected with recirculated water, the heat on film-covered metal plate surface can be taken away, avoid too much steam to produce.Film-covered metal plate product surface temperature through cooling section arrives room temperature state.
Described outlet port unit is used for the rolling of precoated metal panel products, and described outlet port unit comprises the slewing rollers that arrange in turn along metallic plate direction of transfer, and EPC is with limit device and coiling machine.Described EPC before steel band rolling, can realize the limit portion of automatic detection coil of strip with limit device, then the effect of alignment.
The course of work of described film-covered metal plate process units:
Gateway unit launches the metallic plate of curling rolling; Metallic plate is sent into cleaning unit and wash its surperficial foreign matter off, ensure the clean of metal sheet surface, and dry; Metallic plate is heated to design temperature (equal or a little more than the fusing point of polyester film); Polyester film is covered on metallic plate to (can a side also can both sides) by film covering device; Cooling unit is by cooling the metallic plate that is coated with film; Finally by crossing rolling unit, film-covered metal plate is rolled into volume.
A kind of film-covered metal plate of the present invention, production method and process units thereof, raw material is chosen safety, environmental protection, and production method science, reasonable, mainly has following several respects advantage compared to existing technology:
1, safety and environmental protection, metallic plate and film be overlay film under HTHP directly, does not have the use of intermediate adhesive, and the precoated metal panel products sanitary safe of therefore producing, therefore can directly contact with food;
2, the strong adhesion of precoated metal panel products polyester film, resistance to punching, corrosion resistance are strong;
3, film-covered metal plate production is not strong to the dependence of environment, reaches required process conditions, just can directly prepare;
4, production efficiency is high, cost is low;
5, the process units of film-covered metal plate can be realized the serialization industrial production of film-covered metal plate.
Brief description of the drawings
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is film-covered metal plate process units annexation schematic diagram of the present invention;
Fig. 2 is overlay film cellular construction schematic diagram of the present invention.
By reference to the accompanying drawings, in the embodiment of the present invention, Reference numeral is as follows:
1-uncoiler; 2-pinch roll; 3-welding machine;
4-slewing rollers; 5-alkali cleaning equipment; 6-washing equipment;
7-squeezing apparatus; 8-drying plant; 9-conductive rollers;
10-induction heating equipment; 11-metallic plate; 12-air cooler;
13-water cooling equipment; 14-drying plant; 15-slewing rollers;
16-EPC is with limit device; 17-coiling machine; 18-attemperator;
19-action roller; 20-fixed roll; 21-assists chill roll;
22-drives film machine; 23-jockey pulley; 24-film slewing rollers;
25-nip rolls; The 26-film collection apparatus that gives up; 27-movement hydraulic device.
Detailed description of the invention
Embodiment mono-
The present embodiment provides a kind of film-covered metal plate, comprises metallic plate and is coated on its surperficial polyester film, adhesive-free between described metallic plate and polyester film.The polyester film adopting is PETG, concrete, and the polyester film that the present embodiment adopts is the disclosed tunica albuginea of Chinese Patent Application No. 200910259903.0, and its fusing point is 230-260 DEG C.Metallic plate is chromium plating cold-reduced sheet.
The production method of above-mentioned film-covered metal plate, comprises the following steps:
By metallic plate heating, make the temperature of metallic plate higher than the fusing point of polyester film, be heated to 260-280 DEG C; By film covering device, polyester film is applied to linear pressure 6kg/mm, make polyester film cover a side of metallic plate; Described polyester film melts near metallic plate one side, does not melt away from metallic plate one side; Then the sharply cooling film-covered metal plate that obtains of metallic plate of polyester film will be coated with.
Embodiment bis-
The present embodiment provides a kind of film-covered metal plate, comprises metallic plate and is coated on its surperficial polyester film, adhesive-free between described metallic plate and polyester film.The polyester film adopting is PETG, and concrete, polyester film adopts the hyaline membrane as described in Chinese patent application 200910223570.6, and its fusing point is 210-260.Metallic plate is chromium plating cold-reduced sheet.
The production method of above-mentioned film-covered metal plate, comprises the following steps:
By metallic plate heating, make the temperature of metallic plate equal the fusing point of polyester film, be heated to 245 DEG C by this metallic plate; By film covering device, polyester film is applied to linear pressure 6kg/mm, polyester film is covered on the both sides of metallic plate (chromium plating cold-reduced sheet); Polyester film melts near metallic plate one side, does not melt away from metallic plate one side; Then the sharply cooling film-covered metal plate that obtains of metallic plate of polyester film will be coated with.
The process units of above-mentioned film-covered metal plate as shown in Figure 1, comprises the gateway unit, cleaning unit, heating unit, overlay film unit, cooling unit and the outlet port unit that set gradually along metallic plate 11 directions of motion.Gateway unit launches the metallic plate of curling rolling; Cleaning unit washes the foreign matter on metallic plate 11 surfaces; Heating unit heats metallic plate 11; Overlay film unit, overlays on polyester film on metallic plate 11; Cooling unit carries out cooling to film-covered metal plate; Film-covered metal plate is rolled into volume by rolling unit.
Gateway unit is for the metallic plate of curling rolling is launched, then make metallic plate 11 along the process route of film-covered metal plate process units steadily, operation smoothly.Gateway unit comprises the uncoiler 1, pinch roll 2, welding machine 3 and the slewing rollers 4 that arrange in turn along metallic plate 11 direction of transfers.
Cleaning unit is for the oil stain on clean metal plate 11 surfaces, and described cleaning unit comprises the alkali cleaning equipment 5, washing equipment 6, squeezing apparatus 7 and the drying plant 8 that arrange in turn along metallic plate 11 direction of transfers.Because coil of strip is that chrome plating surface has grease, pass through ungrease treatment, under the effect of alkali wash water, the oil stain on metallic plate 11 surfaces is removed, then carry out spray washing, under the effect of squeeze roll, the water on metallic plate 11 surfaces is extracted, and enters drying plant.
Heating unit comprises the resistance heated and the eddy-current heating that arrange in turn according to metallic plate 11 direction of transfers, and eddy-current heating is supplementing resistance heated.Resistance heated in the present embodiment is to be provided with attemperator 18 Muffle furnaces on the conveyer belt of centre of 9, two groups of conductive rollers 9 of two groups of conductive rollers.Resistance heated is under metallic plate 11 service conditions, and the metallic plate 11 between two conductive rollers 9 is heated.The temperature that resistance heated process metallic plate 11 reaches is subject to the impact of environment, attemperator, is not easy to control, and resistance heated power should be moderate, and power is too high or too low, and metallic plate 11 all can be out of shape.Induction heating equipment 10 is conventional equipment, both can purchase commercially available equipment, also can designed, designed.
The overlay film unit of the present embodiment comprises as shown in Figure 1: exhibition film unit, overlay film unit, and pressure provides unit; Overlay film unit forms by inner hollow and with overlay film roller and the auxiliary chill roll 21 of cooling fluid system connectivity, and cooling fluid system is for cooling overlay film roller and auxiliary chill roll 21, and cooling fluid system is optional by water-cooling system; Overlay film roller comprises fixed roll 20 and action roller 19, and can provide the overlay film of realization to metallic plate under unit drives at pressure, auxiliary chill roll 21 is four, be arranged at respectively the outside of fixed roll 20 and action roller 19 and form expansion clearance, when expansion clearance is set to fixed roll 20 and action roller 19 expanded by heating, just contacting with auxiliary chill roll 19; Fixed roll 20 and all glue-lines through polishing with surface of action roller 19 surfaces, auxiliary chill roll 21 has the surface through mirror process.In the overlay film unit of the present embodiment, there are as shown in Figure 2 two cover exhibition film units, exhibition film unit comprises out film machine 22, jockey pulley 23, film slewing rollers 24, nip rolls 25, and useless film collection apparatus 26, the wherein said film machine 22 of opening comprises air-expanding shaft, two cover exhibition film units are symmetricly set in respectively the both sides of overlay film unit, for launching described polyester film, make the overlay film unit of the present embodiment to paste polyester film in metallic plate 11 both sides.
In above-mentioned overlay film unit, overlay film roller is divided into fixed roll 20 and action roller 19, action roller 19 provides unit to be connected with pressure, pressure provides unit to comprise movement hydraulic device 27, it is made up of oil cylinder, turbine and worm leading screw and variable-frequency motor, and movement hydraulic device 27 is for driving the pressing of action roller 19 and fixed roll 20 or separating.On fixed roll 20 and action roller 19, with the surperficial silicon rubber glue-line through polishing, glue-line has 15mm thickness, and auxiliary chill roll 21 has the chrome-plated surface through mirror process, and the fixed roll 20 of overlay film roller and the roller footpath of action roller 19 are in the present embodiment
the roller footpath of auxiliary chill roll 21 is
general auxiliary chill roll 21 is 1 with the optional ratio in the roller footpath of fixed roll 20 and action roller 19: 3-4.
The working mechanism of overlay film unit is: by the polyester film being unfolded and treat that the metal heating plate of overlay film is delivered between the fixed roll 20 and action roller 19 of overlay film unit simultaneously, starting pressure provides unit simultaneously, drive overlay film roller that polyester film is fitted to and on metallic plate, makes film-covered metal plate first product, and be 120-150 DEG C by passing into cooling fluid control overlay film roll surface temperature to overlay film roller and auxiliary chill roll 21 inner chambers.
Cooling unit comprises the air cooler 12, water cooling equipment 13 and the drying plant 14 that arrange in turn along metallic plate direction of transfer.When above-mentioned film-covered metal plate first product promptly enters cooling unit, first through air cooler 12, a part of heat is taken away, then enter water cooling equipment 13.Air cooler 12 adopts airduct, and water cooling equipment 13 adopts water-cooling groove, and film-covered metal plate first product enters rapid cooling after water-cooling groove, the compound of metallic plate and polyester film reaches stable, in water-cooling groove, be connected with recirculated water, the heat on film-covered metal plate surface can be taken away, avoid too much steam to produce.Film-covered metal plate product surface temperature through cooling section arrives room temperature state.
Outlet port unit is used for the rolling of precoated metal panel products, and outlet port unit comprises the slewing rollers 15 that arrange in turn along metallic plate direction of transfer, and EPC is with limit device 16 and coiling machine 17.
The course of work of described film-covered metal plate process units is as follows:
Open a book: coil of strip is positioned on uncoiler 1, and by auxiliary pinch roll 2, slewing rollers 4 are launched into steel band coil of strip; Then through welding machine 3, two sections of steel bands are welded together.
Clean: by alkali cleaning equipment 5, washing equipment 6, metallic plate (steel band) is carried out to cleaning treatment, wash the grease of metal sheet surface, and then extract by squeezing apparatus 7, drying plant 8 is dried, guarantee the clean, dry of metal sheet surface; Alkali cleaning equipment 5, washing equipment 6 and squeezing apparatus 7 that the present embodiment adopts are respectively alkaline bath, rinsing bowl and squeeze roll
Heating: metallic plate enters heating ring joint after cleaning, heating link is made up of resistance reflow heating (resistance heated) and induction reflow heating (eddy-current heating), resistance heated be metallic plate with certain speed service condition under, under the indeformable prerequisite of guarantee metallic plate, the metallic plate between conductive rollers 9 is heated, in the present embodiment, the movement velocity of metallic plate is 45m/min.Resistance reflow heating is due to the impact of various factors, cannot ensure that metallic plate is heated to design temperature uniformly, now further carry out regulating and controlling temperature with eddy-current heating, be i.e. supplementing and regulating resistance heated, ensure that metallic plate, after heating link, reaches 245 DEG C of technological temperatures.
Overlay film: the metallic plate through resistance heated and eddy-current heating moves with the speed of 45m/min, walk to overlay film point, temperature reaches technological requirement, open and flat polyester films in metallic plate both sides, at jockey pulley, nip rolls, under the acting in conjunction of film slewing rollers, polyester film is more straight, do not have ripple to produce, now pass through movement hydraulic device, control the action roller 19 of overlay film roller to fixed roll 20 direction pressings, keep the pressure balance of action roller 19 both sides, in the time that action roller 19 and fixed roll 20 press together metallic plate and both sides polyester film, overlay film starts, now polyester film is near a side of metallic plate, reach fusing point, be bonded on metallic plate, away from a side of metallic plate, not reaching fusing point does not melt, ensure the apparent mass of film-covered metal plate.Because metallic plate movement velocity is very fast, the heat time of polyester film is shorter, can realize the part fusing of polyester film, and a part does not melt.After metallic plate and polyester film are compound, become film-covered metal plate first product, described film-covered metal plate first product enters cooling link with the speed of 45m/min.
Cooling: metallic plate and polyester film are compounded to form after film-covered metal plate first product, promptly enter cooling link, by air cooler 12, water cooling equipment 13 reduces the temperature on film-covered metal plate surface, makes the surface quality of precoated metal panel products stable; And then by drying plant by the quick evaporate to dryness of water mark of steel strip surface.
Rolling: the precoated metal panel products of having produced is carried out to rolling.
Embodiment tri-
Film-covered metal plate prepared embodiment bis-is applied in the lid and two piece can product of metal packaging tank, experiment showed, that described film-covered metal plate has strong adhesion, the advantage of resistance to boiling.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a film-covered metal plate process units, is characterized in that, comprising: the gateway unit, cleaning unit, heating unit, equipment for coating film, cooling unit and the outlet port unit that set gradually according to metallic plate direction of transfer, and described gateway unit launches metallic plate; Described cleaning unit washes the foreign matter of metal sheet surface; Described heating unit heats metallic plate; Described equipment for coating film overlays on polyester film on metallic plate; Described cooling unit carries out cooling to film-covered metal plate; Film-covered metal plate is rolled into volume by described outlet port unit,
Described equipment for coating film for pasting polyester film to obtain film-covered metal plate to metallic plate under adhesive-free condition, and described equipment for coating film at least comprises that overlay film unit and pressure provide unit; Wherein
Described overlay film unit forms by inner hollow and with overlay film roller and the auxiliary chill roll of cooling fluid system connectivity, described overlay film roller comprises fixed roll and action roller, and can provide the overlay film of realization to metallic plate under unit drives at pressure, described auxiliary chill roll is at least two, be arranged at respectively the outside of fixed roll and action roller and form expansion clearance, when described expansion clearance is set to fixed roll and action roller expanded by heating, just contacting with auxiliary chill roll;
Described fixed roll and action roller surface be the glue-line through polishing with surface all, and described auxiliary chill roll has the surface through mirror process;
Described film-covered metal plate comprises metallic plate and is coated on its surperficial polyester film, adhesive-free between described metallic plate and polyester film, and described film-covered metal plate process units can be realized the production method comprising the following steps:
By metallic plate heating, make the temperature of metallic plate greater than or equal to the fusing point of polyester film; By equipment for coating film, polyester film is applied to mechanical pressure, polyester film is covered on metallic plate; Described polyester film melts near metallic plate one side, does not melt away from metallic plate one side; Then the sharply cooling film-covered metal plate that obtains of metallic plate of polyester film will be coated with; The transfer rate of described metallic plate in heating process is 20-60m/min, and it is 6-12kg/mm that described equipment for coating film applies linear pressure to polyester film.
2. process units according to claim 1, is characterized in that, before described metallic plate heating, removes surperficial oil stain through alkali cleaning, washing.
3. process units according to claim 1, is characterized in that, when described polyester film covers on metallic plate, has the tension force of 80-100 ox on polyester film.
4. process units according to claim 1 and 2, is characterized in that, described metallic plate heating successively adopts resistance heated and eddy-current heating.
5. process units according to claim 1, is characterized in that, covers polyester film in metallic plate both sides simultaneously.
6. process units according to claim 1, is characterized in that, the described each second temperature of being sharply cooled to reduces by 70～80 DEG C, sharply coolingly adopts air-cooled and/or water-cooled.
7. process units according to claim 1, is characterized in that, described cleaning unit comprises the alkali cleaning equipment, washing equipment, squeezing apparatus and the drying plant that arrange in turn along metallic plate direction of transfer.
8. process units according to claim 1, is characterized in that, described heating unit comprises the resistance heated and the eddy-current heating that arrange in turn along metallic plate direction of transfer.
9. process units according to claim 1, is characterized in that, described cooling unit comprises arrange in turn along metallic plate direction of transfer air-cooled, water-cooled and oven dry.
10. process units according to claim 1, is characterized in that, described outlet port unit comprises the slewing rollers that arrange in turn along metallic plate direction of transfer, and EPC is with limit device and coiling machine.
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| CN201110378435.6A CN102514302B (en) | 2011-11-24 | 2011-11-24 | Laminated metal plate as well as production method and production device thereof |
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| CN201110378435.6A CN102514302B (en) | 2011-11-24 | 2011-11-24 | Laminated metal plate as well as production method and production device thereof |
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| CN102514302B true CN102514302B (en) | 2014-07-23 |
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| CN102514302A (en) | 2012-06-27 |
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Address after: 101407 Beijing Huairou District wild goose Industrial Development Zone Patentee after: Origen Polytron Technologies Inc. Address before: 101407 No. 7 Nan Yi Street, Yan Xi economic development zone, Huairou District, Beijing Patentee before: ORG PACKAGING Co.,Ltd. |
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Application publication date: 20120627 Assignee: Beijing Lanpeng Ruichi Technology Co.,Ltd. Assignor: Origen Polytron Technologies Inc. Contract record no.: X2022990000787 Denomination of invention: Film coated metal plate, production method and production device Granted publication date: 20140723 License type: Common License Record date: 20221012 |