CN111331967A - Corrosion-resistant flexible packaging film and processing technology thereof - Google Patents

Corrosion-resistant flexible packaging film and processing technology thereof Download PDF

Info

Publication number
CN111331967A
CN111331967A CN202010232234.4A CN202010232234A CN111331967A CN 111331967 A CN111331967 A CN 111331967A CN 202010232234 A CN202010232234 A CN 202010232234A CN 111331967 A CN111331967 A CN 111331967A
Authority
CN
China
Prior art keywords
rolling roller
gear
rotate
rotating rod
rolling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010232234.4A
Other languages
Chinese (zh)
Inventor
王跃杰
葛振宗
孙自权
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Jie Cheng Packaging Products Co ltd
Original Assignee
Anhui Jie Cheng Packaging Products Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Jie Cheng Packaging Products Co ltd filed Critical Anhui Jie Cheng Packaging Products Co ltd
Priority to CN202010232234.4A priority Critical patent/CN111331967A/en
Publication of CN111331967A publication Critical patent/CN111331967A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/022—Mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/10—Glass or silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/001—Aluminium or its alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B32B2037/246—Vapour deposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/752—Corrosion inhibitor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metal Rolling (AREA)
  • Wrappers (AREA)

Abstract

The invention discloses a corrosion-resistant flexible packaging film which is sequentially provided with a nanoscale silicon dioxide layer, an aluminum foil layer, a polyurethane bonding layer and a polypropylene layer from outside to inside, wherein the aluminum foil layer is prepared from the following raw materials in parts by mass: 0.221-0.235% of silicon, 0.45-0.56% of iron, 3.6-5.2% of copper, 0.26-0.86% of manganese, 1.1-1.6% of magnesium, 0.08-0.13% of chromium, 0.18-0.31% of zinc, 0.09-0.16% of titanium and the balance of aluminum, and can solve the problems of breakage of the aluminum-plastic flexible packaging film and poor corrosion resistance of the aluminum-plastic flexible packaging film caused by poor ductility of the aluminum-plastic flexible packaging film.

Description

Corrosion-resistant flexible packaging film and processing technology thereof
Technical Field
The invention relates to the technical field of flexible packaging films, in particular to a corrosion-resistant flexible packaging film and a processing technology thereof.
Background
In the aspect of the packing on the market at present, for the needs that satisfy different commodities, especially to corrosion resistance's demand, plastic packaging film develops towards many varieties, multi-functional level's compound flexible packaging film by the individual layer film gradually, so there has been the plastic-aluminum complex film, thereby the ductility of plastic-aluminum flexible packaging film self can not keep up with the product to the damaged condition of plastic-aluminum flexible packaging film appears to its ductility demand, thereby aluminium itself belongs to comparatively active metal in addition, thereby the damaged condition that leads to the weeping of plastic-aluminum flexible packaging film because of not corrosion-resistant appears.
Publication No.: CN107134547A specifically discloses a novel flexible aluminum-plastic packaging film for lithium ion battery, thereby can not solve the ductility of the flexible aluminum-plastic packaging film self that the aforesaid mentioned and can not follow up the damaged condition of flexible aluminum-plastic packaging film appears to its malleable demand product, thereby aluminium itself belongs to comparatively active metal in addition to the damaged condition that leads to the weeping of flexible aluminum-plastic packaging film because of corrosion-resistant not appears.
Disclosure of Invention
The invention aims to provide a corrosion-resistant flexible packaging film and a processing technology thereof, which can solve the problems of breakage of the aluminum-plastic flexible packaging film caused by poor ductility of the aluminum-plastic flexible packaging film and poor corrosion resistance of the aluminum-plastic flexible packaging film.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a corrosion-resistant flexible packaging film, this corrosion-resistant flexible packaging film has set gradually nanometer silica layer, aluminium foil layer, polyurethane bonding layer and polypropylene layer by outside to the inside, the aluminium foil layer is prepared by the raw materials of following mass fraction: 0.221-0.235% of silicon, 0.45-0.56% of iron, 3.6-5.2% of copper, 0.26-0.86% of manganese, 1.1-1.6% of magnesium, 0.08-0.13% of chromium, 0.18-0.31% of zinc, 0.09-0.16% of titanium and the balance of aluminum;
the preparation process of the aluminum foil layer comprises the following steps:
the method comprises the following steps: taking and uniformly mixing raw materials, putting the raw materials into a smelting furnace for smelting, then putting the raw materials into a refining furnace for refining, continuously introducing nitrogen during smelting and refining, finally pouring to obtain an aluminum alloy block product, and putting the aluminum alloy block into a feed inlet of a rolling mill;
step two: starting a first hydraulic cylinder and a second hydraulic cylinder, wherein the first hydraulic cylinder drives a first hydraulic rod, the first hydraulic rod pushes a first rolling roller through a support plate so as to adjust the distance between the first rolling roller and a second rolling roller, then a fixed plate is used for fixing the first rolling roller, the second hydraulic cylinder drives a second hydraulic rod, the second hydraulic rod pushes a third rolling roller through a baffle plate so as to adjust the distance between the third rolling roller and the second rolling roller, a fixed plate is used for fixing the third rolling roller, a motor is started, a motor rotating shaft rotates so as to drive a connecting shaft to rotate, the connecting shaft rotates so as to rotate a second gear, the second gear rotates so as to drive a first gear and a third gear to rotate, the first gear rotates so as to drive a first rotating rod to rotate, the first rotating rod rotates so as to drive the first rolling roller to rotate, and the second gear rotates so as to drive a second rotating rod to rotate, thereby the second dwang rotates and drives the rotation of second rolling roller, thereby third gear rotation drives the rotation of third dwang, thereby the third dwang rotates and drives the rotation of third rolling roller, and first rolling roller, second rolling roller rotate with the third rolling roller and thereby carry out rolling operation to the aluminum alloy piece, through rolling back many times, obtain the aluminium foil, it is reserve.
A processing technology of a corrosion-resistant flexible packaging film comprises the following specific steps:
s1, coating a polyurethane adhesive on one side surface of the aluminum foil layer, drying in an oven at 70-80 ℃ for 5-15min, taking out, cooling for 5-8min to obtain a first product, and then laminating the first product and a polypropylene film to obtain a second product;
s2, placing the second product into a feed inlet of vapor deposition equipment, coating nano-scale silicon dioxide to obtain a third product, and placing the third product into a constant-temperature curing chamber with the temperature of 46-52 ℃ for curing for 20-24h to obtain a corrosion-resistant flexible packaging film; the thickness of the coating nano-scale silicon dioxide is 20-25 μm.
Preferably, the smelting temperature is 740-770 ℃, the temperature of the refining furnace is 720-730 ℃, the refining treatment time is 30min, the input nitrogen pressure is 0.35-0.55MPa, the nitrogen flow is 25-27L/min, and the pouring temperature is 690-700 ℃.
Preferably, the rolling mill includes fixing base, motor, gear box and base, install the motor on the surface at fixing base top, the bearing frame is installed to motor one side, the bearing frame is installed perpendicularly on the surface at fixing base top, the one end of motor axis of rotation is located the inside and rotation axis one end of bearing frame and installs the connecting axle on the surface, the gear box is installed to one side of bearing frame, the one end of connecting axle extends to the inside of gear box, the perpendicular welding has the second gear on the surface of connecting axle one end, the perpendicular welding has the second dwang on the surface of second gear one side, the third dwang is installed to one side of second dwang, the first dwang is installed to the opposite side of second dwang, the one end of third dwang is located the inside and the perpendicular welding has the third gear on the surface of third dwang one end of gear, one end of the first rotating rod is positioned in the gear box, a first gear is perpendicularly welded on the surface of one end of the first rotating rod, a base is installed on one side of the gear box, two fixing frames are perpendicularly welded on the surface of the top of the base, rectangular openings are formed in the surface of one side of each fixing frame, a first rolling roller, a second rolling roller and a third rolling roller are sequentially installed between the two rectangular openings from bottom to top, the surface of one end of the first rolling roller is provided with the first rotating rod through a fixing cap, the surface of one end of the second rolling roller is provided with the second rotating rod through a fixing cap, the surface of one end of the third rolling roller is provided with the third rotating rod through a fixing cap, the surface of the bottom of the rectangular opening of each fixing frame is provided with a first hydraulic cylinder, and the first hydraulic rod is installed on the first hydraulic cylinder, the utility model discloses a hydraulic press, including first hydraulic stem, backup pad, baffle, first rolling roller, second rolling roller and third rolling roller, the backup pad is installed on the surface at first hydraulic stem top, the baffle is installed on the surface at backup pad top, first rolling roller, second rolling roller and third rolling roller all install between two mounts through the fixed plate, the baffle is installed to third rolling roller top and the baffle top is installed on the surface, the second hydraulic stem is installed on the surface at baffle top, the second hydraulic cylinder is installed to second hydraulic stem one end.
Preferably, the first gear and the second gear are meshed, and the third gear and the second gear are meshed.
Preferably, the connecting shaft is connected with the gear box in a rotating mode, the third rotating rod is connected with the gear box in a rotating mode, the second rotating rod is connected with the gear box in a rotating mode, and the first rotating rod is connected with the gear box in a rotating mode.
Preferably, the partition plates are respectively installed between the left end and the right end of the first rolling roller and the left end and the right end of the second rolling roller, and the partition plates are respectively installed between the left end and the right end of the second rolling roller and the left end and the right end of the third rolling roller.
Compared with the prior art, the invention has the beneficial effects that:
the invention uses aluminum alloy for preparing the aluminum foil layer, and the preparation raw materials of the aluminum alloy comprise 0.221-0.235% of silicon, 0.45-0.56% of iron, 3.6-5.2% of copper, 0.26-0.86% of manganese, 1.1-1.6% of magnesium, 0.08-0.13% of chromium, 0.18-0.31% of zinc and 0.09-0.16% of titanium, the balance being aluminum, so that after smelting and refining, aluminum alloy blocks are finally poured to obtain the aluminum alloy blocks, the aluminum alloy blocks are rolled by a rolling mill, the rolling shaft of the motor rotates to drive the rolling shaft to rotate, the rolling shaft rotates to drive the second gear to rotate, the second gear rotates to drive the first gear and the third gear to rotate, the first gear rotates to drive the first rotating rod to rotate, the first rotating rod rotates to drive the first rotating rod to rotate, the second gear rotates to drive the second rotating rod to rotate, thereby the second dwang rotates and drives the rotation of second rolling roller, thereby third gear rotation drives the rotation of third dwang, thereby the third dwang rotates and drives the rotation of third rolling roller, first rolling roller, second rolling roller rotates with the third rolling roller and rolls the operation to the aluminium alloy block, after rolling many times, obtain the aluminium foil, this aluminium foil has better ductility, certain corrosion resistance has simultaneously, thereby the problem that the flexible packaging film ductility is not good and lead to the flexible packaging film damaged has been solved.
According to the aluminum-plastic flexible packaging film provided by the invention, the nanoscale silicon dioxide is coated on the surface of the aluminum foil layer, a compact protective layer is formed on the surface of the aluminum foil layer, and the nanoscale silicon dioxide can further improve the corrosion resistance of the aluminum foil, so that the protective layer has excellent chemical resistance and good water vapor barrier property, and meanwhile, the mechanical property of the aluminum foil layer is improved to a certain extent, so that the corrosion resistance of the aluminum-plastic flexible packaging film is improved, and the problems of non-corrosion resistance and liquid leakage caused by poor corrosion resistance of the existing aluminum-plastic flexible packaging film are solved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of a rolling mill;
FIG. 2 is a schematic view of the base of the rolling mill;
FIG. 3 is a schematic view of the dead plate of the rolling mill;
FIG. 4 is a schematic view of the internal structure of the gearbox of the rolling mill;
in the figure: 1. a fixed seat; 2. a motor; 3. a bearing seat; 4. a connecting shaft; 5. a gear case; 6. a base; 7. a fixed mount; 8. a first rolling roll; 9. a second rolling roll; 10. a third rolling roll; 11. a fixing cap; 12. a fixing plate; 13. a partition plate; 14. a first hydraulic lever; 15. a support plate; 16. a first hydraulic cylinder; 17. a first gear; 18. a second gear; 19. a third gear; 20. a third rotating rod; 21. a second rotating lever; 22. a first rotating lever; 23. a second hydraulic cylinder; 24. a second hydraulic rod; 25. and a baffle plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a corrosion-resistant flexible packaging film is sequentially provided with a nano-scale silicon dioxide layer, an aluminum foil layer, a polyurethane adhesive layer and a polypropylene layer from outside to inside, wherein the aluminum foil layer is prepared from the following raw materials in percentage by mass: 0.221-0.235% of silicon, 0.45-0.56% of iron, 3.6-5.2% of copper, 0.26-0.86% of manganese, 1.1-1.6% of magnesium, 0.08-0.13% of chromium, 0.18-0.31% of zinc, 0.09-0.16% of titanium and the balance of aluminum;
the preparation process of the aluminum foil layer comprises the following steps:
the method comprises the following steps: taking and uniformly mixing raw materials, putting the raw materials into a smelting furnace for smelting, then putting the raw materials into a refining furnace for refining, continuously introducing nitrogen during smelting and refining, finally pouring to obtain an aluminum alloy block product, and putting the aluminum alloy block into a feed inlet of a rolling mill;
step two: starting a first hydraulic cylinder 16 and a second hydraulic cylinder 23, wherein the first hydraulic cylinder 16 drives a first hydraulic rod 14, the first hydraulic rod 14 pushes a first rolling roller 8 through a support plate 15 so as to adjust the distance between the first rolling roller 8 and a second rolling roller 9, then the first rolling roller 8 is fixed by using a fixed plate 12, the second hydraulic cylinder 23 drives a second hydraulic rod 24, the second hydraulic rod 24 pushes a third rolling roller 10 through a baffle plate 25 so as to adjust the distance between the third rolling roller 10 and the second rolling roller 9, when the third rolling roller 10 is fixed by using the fixed plate 12, starting a motor 2, a rotating shaft of the motor 2 rotates so as to drive a connecting shaft 4 to rotate, the connecting shaft 4 rotates so as to rotate a second gear 18, the second gear 18 rotates so as to drive a first gear 17 and a third gear 19 to rotate, the first gear 17 rotates so as to drive a first rotating rod 22 to rotate, the first rotating rod 22 rotates so as to drive the first rolling roller 8 to rotate, thereby second gear 18 rotates and drives second dwang 21 and rotates, thereby second dwang 21 rotates and drives second rolling roller 9 and rotates, thereby third gear 19 rotates and drives third dwang 20 and rotates, thereby third dwang 20 rotates and drives third rolling roller 10 and rotates, thereby first rolling roller 8, second rolling roller 9 rotate and third rolling roller 10 rotate and carry out rolling operation to the aluminium alloy piece, through rolling back many times, obtain the aluminium foil, it is reserve.
A processing technology of a corrosion-resistant flexible packaging film comprises the following specific steps:
s1, coating a polyurethane adhesive on one side surface of the aluminum foil layer, drying in an oven at 70-80 ℃ for 5-15min, taking out, cooling for 5-8min to obtain a first product, and then laminating the first product and a polypropylene film to obtain a second product;
s2, placing the second product into a feed inlet of vapor deposition equipment, coating nano-scale silicon dioxide to obtain a third product, and placing the third product into a constant-temperature curing chamber with the temperature of 46-52 ℃ for curing for 20-24h to obtain a corrosion-resistant flexible packaging film; the thickness of the coated nano-scale silicon dioxide is 20-25 μm. The type of vapor deposition apparatus: TF 1700-80.
The smelting temperature is 740-770 ℃, the temperature of the refining furnace is 720-730 ℃, the refining treatment time is 30min, the input nitrogen pressure is 0.35-0.55MPa, the nitrogen flow is 25-27L/min, and the pouring temperature is 690-700 ℃.
The rolling mill comprises a fixed seat 1, a motor 2, a gear box 5 and a base 6, wherein the surface of the top of the fixed seat 1 is provided with the motor 2, one side of the motor 2 is provided with a bearing seat 3, the bearing seat 3 is vertically arranged on the surface of the top of the fixed seat 1, one end of a rotating shaft of the motor 2 is positioned in the bearing seat 3, the surface of one end of the rotating shaft is provided with a connecting shaft 4, one side of the bearing seat 3 is provided with the gear box 5, one end of the connecting shaft 4 extends into the gear box 5, the surface of one end of the connecting shaft 4 is vertically welded with a second gear 18, the surface of one side of the second gear 18 is vertically welded with a second rotating rod 21, one side of the second rotating rod 21 is provided with a third rotating rod 20, the other side of the second rotating rod 21 is provided with a first rotating rod 22, one, one end of a first rotating rod 22 is positioned in the gear box 5, a first gear 17 is vertically welded on the surface of one end of the first rotating rod 22, a base 6 is installed on one side of the gear box 5, two fixing frames 7 are vertically welded on the surface of the top of the base 6, rectangular openings are respectively formed in the surfaces of one sides of the two fixing frames 7, a first rolling roller 8, a second rolling roller 9 and a third rolling roller 10 are sequentially installed between the two rectangular openings from bottom to top, a first rotating rod 22 is installed on the surface of one end of the first rolling roller 8 through a fixing cap 11, a second rotating rod 21 is installed on the surface of one end of the second rolling roller 9 through a fixing cap 11, a third rotating rod 20 is installed on the surface of one end of the third rolling roller 10 through a fixing cap 11, a first hydraulic cylinder 16 is installed on the surface of the rectangular openings of the two fixing frames 7, and a first hydraulic rod 14 is installed on the first hydraulic, the supporting plate 15 is installed on the surface of the top of the first hydraulic rod 14, the partition plate 13 is installed on the surface of the top of the supporting plate 15, the first rolling roller 8, the second rolling roller 9 and the third rolling roller 10 are all installed between the two fixing frames 7 through the fixing plate 12, the partition plate 13 is installed above the third rolling roller 10, the baffle plate 25 is installed on the surface of the top of the partition plate 13, the second hydraulic rod 24 is installed on the surface of the top of the baffle plate 25, and the second hydraulic cylinder 23 is installed at one end of the second hydraulic rod 24.
Meshing between first gear 17 and second gear 18, meshing between third gear 19 and second gear 18, rotate between connecting axle 4 and the gear box 5 and be connected, rotate between third dwang 20 and the gear box 5 and be connected, rotate between second dwang 21 and the gear box 5 and be connected, rotate between first dwang 22 and the gear box 5 and be connected, all install baffle 13 between both ends about both ends and the second rolling roller 9 of first rolling roller 8 and the both ends about both ends, all install baffle 13 between both ends about both ends and the third rolling roller 10 of second rolling roller 9.
Example 1
The utility model provides a corrosion-resistant flexible packaging film, this corrosion-resistant flexible packaging film has set gradually nanometer silica layer, aluminium foil layer, polyurethane bonding layer and polypropylene layer by outside to the inside, and the aluminium foil layer is prepared by the raw materials of following mass fraction: 0.23% silicon, 0.48% iron, 3.8% copper, 0.32% manganese, 1.3% magnesium, 0.12% chromium, 0.20% zinc, 0.15% titanium, 93.4% aluminum;
the preparation process of the aluminum foil layer comprises the following steps:
the method comprises the following steps: taking 0.23% of silicon, 0.48% of iron, 3.8% of copper, 0.32% of manganese, 1.3% of magnesium, 0.12% of chromium, 0.20% of zinc, 0.15% of titanium and 93.4% of aluminum, uniformly mixing, then putting the mixture into a smelting furnace with the temperature of 750 ℃ for smelting, then putting the smelting furnace into a refining furnace with the temperature of 725 ℃ for refining for 30min, continuously introducing nitrogen during smelting and refining, wherein the pressure of the input nitrogen is 0.38MPa, the flow of the nitrogen is 25L/min, finally pouring, and the pouring temperature is 695 ℃ to obtain an aluminum alloy block product, and putting the aluminum alloy block into a feeding hole of a rolling mill.
Step two: starting a first hydraulic cylinder 16 and a second hydraulic cylinder 23, wherein the first hydraulic cylinder 16 drives a first hydraulic rod 14, the first hydraulic rod 14 pushes a first rolling roller 8 through a support plate 15 so as to adjust the distance between the first rolling roller 8 and a second rolling roller 9, then the first rolling roller 8 is fixed by using a fixed plate 12, the second hydraulic cylinder 23 drives a second hydraulic rod 24, the second hydraulic rod 24 pushes a third rolling roller 10 through a baffle plate 25 so as to adjust the distance between the third rolling roller 10 and the second rolling roller 9, when the third rolling roller 10 is fixed by using the fixed plate 12, starting a motor 2, a rotating shaft of the motor 2 rotates so as to drive a connecting shaft 4 to rotate, the connecting shaft 4 rotates so as to rotate a second gear 18, the second gear 18 rotates so as to drive a first gear 17 and a third gear 19 to rotate, the first gear 17 rotates so as to drive a first rotating rod 22 to rotate, the first rotating rod 22 rotates so as to drive the first rolling roller 8 to rotate, thereby second gear 18 rotates and drives second dwang 21 and rotates, thereby second dwang 21 rotates and drives second rolling roller 9 and rotates, thereby third gear 19 rotates and drives third dwang 20 and rotates, thereby third dwang 20 rotates and drives third rolling roller 10 and rotates, thereby first rolling roller 8, second rolling roller 9 rotate and third rolling roller 10 rotate and carry out rolling operation to the aluminium alloy piece, through rolling back many times, obtain the aluminium foil, it is reserve.
A processing technology of a corrosion-resistant flexible packaging film comprises the following specific steps:
s1, coating a polyurethane adhesive on the surface of one side of the aluminum foil layer, drying in a 75 ℃ oven for 6min, taking out and cooling for 7min to obtain a first product, and then laminating the first product and a polypropylene film to obtain a second product;
s2, placing the second product into a feed inlet of vapor deposition equipment, coating nano-scale silicon dioxide with the thickness of 20 microns to obtain a third product, and placing the third product into a constant-temperature curing chamber with the temperature of 50 ℃ for curing for 24 hours to obtain the corrosion-resistant flexible packaging film.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. The corrosion-resistant flexible packaging film is characterized in that a nanoscale silicon dioxide layer, an aluminum foil layer, a polyurethane bonding layer and a polypropylene layer are sequentially arranged from outside to inside;
the aluminum foil layer is prepared from the following raw materials in percentage by mass: 0.221-0.235% of silicon, 0.45-0.56% of iron, 3.6-5.2% of copper, 0.26-0.86% of manganese, 1.1-1.6% of magnesium, 0.08-0.13% of chromium, 0.18-0.31% of zinc, 0.09-0.16% of titanium and the balance of aluminum; the preparation process of the aluminum foil layer comprises the following steps:
the method comprises the following steps: taking and uniformly mixing raw materials, putting the raw materials into a smelting furnace for smelting, then putting the raw materials into a refining furnace for refining, continuously introducing nitrogen during smelting and refining, finally pouring to obtain an aluminum alloy block product, and putting the aluminum alloy block into a feed inlet of a rolling mill;
step two: starting a first hydraulic cylinder (16) and a second hydraulic cylinder (23), driving a first hydraulic rod (14) by the first hydraulic cylinder (16), pushing a first rolling roller (8) by the first hydraulic rod (14) through a support plate (15) so as to adjust the distance between the first rolling roller (8) and a second rolling roller (9), fixing the first rolling roller (8) by a fixing plate (12), driving a second hydraulic cylinder (24) by the second hydraulic cylinder (23), pushing a third rolling roller (10) by the second hydraulic cylinder (24) through a baffle plate (25) so as to adjust the distance between the third rolling roller (10) and the second rolling roller (9), fixing the third rolling roller (10) by the fixing plate (12), starting a motor (2), driving a connecting shaft (4) to rotate by the motor (4), and driving a second gear (18) to rotate by the second hydraulic cylinder (4), thereby second gear (18) rotate and drive first gear (17), third gear (19) rotate, thereby first gear (17) rotate and drive first dwang (22) and rotate, thereby first dwang (22) rotate and drive first rolling roller (8) and rotate, thereby second gear (18) rotate and drive second dwang (21) and rotate, thereby second dwang (21) rotate and drive second rolling roller (9) and rotate, thereby third gear (19) rotate and drive third dwang (20) and rotate, thereby third dwang (20) rotate and drive third rolling roller (10) and rotate, first rolling roller (8), second rolling roller (9) rotate with third rolling roller (10) and so on to carry out rolling operation to the aluminum alloy piece, after rolling many times, obtain the aluminum foil, reserve.
2. The processing technology of the corrosion-resistant flexible packaging film is characterized by comprising the following specific steps:
s1, coating a polyurethane adhesive on one side surface of the aluminum foil layer, drying in an oven at 70-80 ℃ for 5-15min, taking out, cooling for 5-8min to obtain a first product, and then laminating the first product and a polypropylene film to obtain a second product;
s2, placing the second product into a feed inlet of vapor deposition equipment, coating nano-scale silicon dioxide to form a nano-scale silicon dioxide layer to obtain a third product, and placing the third product into a constant-temperature curing chamber at the temperature of 46-52 ℃ for curing for 20-24h to obtain the corrosion-resistant flexible packaging film; the thickness of the coating nano-scale silicon dioxide is 20-25 μm.
3. The corrosion-resistant flexible packaging film as claimed in claim 1, wherein the melting temperature is 740-770 ℃, the temperature of the refining furnace is 720-730 ℃, the refining treatment time is 30min, the pressure of the input nitrogen is 0.35-0.55MPa, the flow rate of the nitrogen is 25-27L/min, and the pouring temperature is 690-700 ℃.
4. The corrosion-resistant flexible packaging film according to claim 1, wherein the rolling mill comprises a fixed seat (1), a motor (2), a gear box (5) and a base (6), the motor (2) is installed on the surface of the top of the fixed seat (1), the bearing seat (3) is installed on one side of the motor (2), the bearing seat (3) is vertically installed on the surface of the top of the fixed seat (1), one end of the rotating shaft of the motor (2) is located inside the bearing seat (3), the connecting shaft (4) is installed on the surface of one end of the rotating shaft, the gear box (5) is installed on one side of the bearing seat (3), one end of the connecting shaft (4) extends to the inside of the gear box (5), a second gear (18) is vertically welded on the surface of one end of the connecting shaft (4), a second rotating rod (21) is vertically welded on the surface of one side of the second, a third rotating rod (20) is installed on one side of the second rotating rod (21), a first rotating rod (22) is installed on the other side of the second rotating rod (21), one end of the third rotating rod (20) is located inside the gear box (5) and one end of the third rotating rod (20) is perpendicularly welded with a third gear (19) on the surface, one end of the first rotating rod (22) is located inside the gear box (5) and one end of the first rotating rod (22) is perpendicularly welded on the surface with a first gear (17), a base (6) is installed on one side of the gear box (5), two fixing frames (7) are perpendicularly welded on the surface of the top of the base (6), rectangular openings are formed in one side of each fixing frame (7), and a first roller (8), a second roller (9) and a third roller (10) are sequentially installed between the rectangular openings from bottom to top in a rolling mode, first rotating rod (22) is installed through locking cap (11) on the surface of first rolling roller (8) one end, second rotating rod (21) is installed through locking cap (11) on the surface of second rolling roller (9) one end, third rotating rod (20) is installed through locking cap (11) on the surface of third rolling roller (10) one end, two install first pneumatic cylinder (16) on the surface of mount (7) rectangle open-ended bottom, install first hydraulic stem (14) on first pneumatic cylinder (16), the backup pad (15) is installed on the surface at first hydraulic stem (14) top, the baffle (13) is installed on the surface at backup pad (15) top, first rolling roller (8), second rolling roller (9) and third rolling roller (10) all install between two mounts (7) through fixed plate (12), baffle (13) are installed to third rolling roller (10) top and baffle (25) are installed on the surface at this baffle (13) top, install second hydraulic stem (24) on the surface at baffle (25) top, second hydraulic stem (23) are installed to second hydraulic stem (24) one end.
5. The corrosion-resistant flexible packaging film of claim 4, wherein the first gear (17) is engaged with the second gear (18), and the third gear (19) is engaged with the second gear (18).
6. The corrosion-resistant flexible packaging film according to claim 4, wherein the connecting shaft (4) is rotatably connected with the gear box (5), the third rotating rod (20) is rotatably connected with the gear box (5), the second rotating rod (21) is rotatably connected with the gear box (5), and the first rotating rod (22) is rotatably connected with the gear box (5).
7. The corrosion-resistant flexible packaging film according to claim 4, wherein a partition plate (13) is installed between each of the left and right ends of the first rolling roll (8) and the left and right ends of the second rolling roll (9), and a partition plate (13) is installed between each of the left and right ends of the second rolling roll (9) and the left and right ends of the third rolling roll (10).
CN202010232234.4A 2020-03-27 2020-03-27 Corrosion-resistant flexible packaging film and processing technology thereof Pending CN111331967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010232234.4A CN111331967A (en) 2020-03-27 2020-03-27 Corrosion-resistant flexible packaging film and processing technology thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010232234.4A CN111331967A (en) 2020-03-27 2020-03-27 Corrosion-resistant flexible packaging film and processing technology thereof

Publications (1)

Publication Number Publication Date
CN111331967A true CN111331967A (en) 2020-06-26

Family

ID=71176747

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010232234.4A Pending CN111331967A (en) 2020-03-27 2020-03-27 Corrosion-resistant flexible packaging film and processing technology thereof

Country Status (1)

Country Link
CN (1) CN111331967A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115782322A (en) * 2023-02-06 2023-03-14 宁波时代铝箔科技股份有限公司 Aluminum foil titanium-containing antibacterial packaging element and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102329985A (en) * 2011-06-14 2012-01-25 刘继福 Aluminum foil for flexible package of polymer lithium ion battery
CN107134547A (en) * 2017-04-01 2017-09-05 乐凯胶片股份有限公司 A kind of new type lithium ion battery plastic-aluminum flexible packing film
CN110712402A (en) * 2019-10-15 2020-01-21 界首市天鸿新材料股份有限公司 Aluminum-plastic composite film with oxidation resistance and high ductility and preparation method thereof
CN110722863A (en) * 2019-10-15 2020-01-24 界首市天鸿新材料股份有限公司 Preparation method of corrosion-resistant flexible packaging film for lithium battery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102329985A (en) * 2011-06-14 2012-01-25 刘继福 Aluminum foil for flexible package of polymer lithium ion battery
CN107134547A (en) * 2017-04-01 2017-09-05 乐凯胶片股份有限公司 A kind of new type lithium ion battery plastic-aluminum flexible packing film
CN110712402A (en) * 2019-10-15 2020-01-21 界首市天鸿新材料股份有限公司 Aluminum-plastic composite film with oxidation resistance and high ductility and preparation method thereof
CN110722863A (en) * 2019-10-15 2020-01-24 界首市天鸿新材料股份有限公司 Preparation method of corrosion-resistant flexible packaging film for lithium battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115782322A (en) * 2023-02-06 2023-03-14 宁波时代铝箔科技股份有限公司 Aluminum foil titanium-containing antibacterial packaging element and preparation method thereof
CN115782322B (en) * 2023-02-06 2023-04-14 宁波时代铝箔科技股份有限公司 Aluminum foil titanium-containing antibacterial packaging element and preparation method thereof

Similar Documents

Publication Publication Date Title
CN102329985B (en) Aluminum foil for flexible package of polymer lithium ion battery
CN111331967A (en) Corrosion-resistant flexible packaging film and processing technology thereof
CN109694963B (en) Cold-rolled strip for aluminum plastic film and aluminum foil of new energy battery and preparation method thereof
CN106311747A (en) Aluminum foil for lithium ion battery flexible package aluminum plastic film and production process for aluminum foil
CN111549261A (en) Preparation method for producing deep-drawing cold-forming medicinal aluminum foil by short-process casting and rolling blank
CN111270109B (en) Method for producing 8021 aluminum alloy soft packaging foil for lithium battery by cast rolling method
CN110712402B (en) Aluminum-plastic composite film with oxidation resistance and high ductility and preparation method thereof
CN102329984B (en) Aluminum foil material capable of meeting more than 4 mm punching depth of cold punch formed flexible package material
CN111761036B (en) Casting and rolling method for 6xxx series aluminum alloy plate for automobile
CN102649124A (en) Rolling method of magnesium or magnesium alloy foils
CN110993876A (en) Copper-aluminum composite terminal for lithium battery tab connection and preparation method thereof
CN113414375B (en) Electromagnetic low-pressure casting device and method for lead-acid battery grid
CN101905241A (en) Continuous casting-rolling and extrusion molding device of Al-Mg-Cu alloy and composite materials
CN214878841U (en) Production device for coating adhesive labels as required
US5411764A (en) Method of making lithium electrode
CN210341072U (en) Device for producing large-width ultrathin metal lithium belt
JP2006336942A (en) Manufacturing method of cold plate, and cold plate manufactured thereby
CN205628979U (en) Steel sheet levelling machine
CN111389693A (en) Production process of hydrophilic aluminum foil for air conditioner
CN107876716B (en) A kind of production technology reducing the high Sn bronze made-up belt surface milling amount of horizontal casting
CN211284499U (en) Hot-dip galvanized aluminum and rare earth alloy corrugated steel production device superior to hot galvanizing
CN114122579B (en) Thin aluminum plastic film and preparation method and application thereof
CN221046935U (en) Efficient cooling roller mechanism
CN215845646U (en) Aluminum solution uniform quantity spraying device for metal composite plate production
CN217454870U (en) Curtain coating chill roll is used in processing of membrane goods

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200626

RJ01 Rejection of invention patent application after publication